EP0127043B1 - Impulse generator - Google Patents

Impulse generator Download PDF

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Publication number
EP0127043B1
EP0127043B1 EP84105415A EP84105415A EP0127043B1 EP 0127043 B1 EP0127043 B1 EP 0127043B1 EP 84105415 A EP84105415 A EP 84105415A EP 84105415 A EP84105415 A EP 84105415A EP 0127043 B1 EP0127043 B1 EP 0127043B1
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EP
European Patent Office
Prior art keywords
indexing
spiral spring
impulse generator
disk
contact
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
EP84105415A
Other languages
German (de)
French (fr)
Other versions
EP0127043A3 (en
EP0127043A2 (en
Inventor
Wolfgang Rösl
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.)
Alcatel Lucent Deutschland AG
Alcatel Lucent NV
Original Assignee
Alcatel SEL AG
Standard Elektrik Lorenz AG
Alcatel NV
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Filing date
Publication date
Application filed by Alcatel SEL AG, Standard Elektrik Lorenz AG, Alcatel NV filed Critical Alcatel SEL AG
Priority to AT84105415T priority Critical patent/ATE58612T1/en
Publication of EP0127043A2 publication Critical patent/EP0127043A2/en
Publication of EP0127043A3 publication Critical patent/EP0127043A3/en
Application granted granted Critical
Publication of EP0127043B1 publication Critical patent/EP0127043B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00Switches 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
    • H01H19/005Electromechanical pulse generators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00Switches 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
    • H01H19/54Switches 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 the operating part having at least five or an unspecified number of operative positions
    • H01H19/56Angularly-movable actuating part carrying contacts, e.g. drum switch
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00Switches 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
    • H01H19/005Electromechanical pulse generators
    • H01H2019/006Electromechanical pulse generators being rotation direction sensitive, e.g. the generated pulse or code depends on the direction of rotation of the operating part

Definitions

  • the present invention relates to a pulse generator according to the preamble of claim 1.
  • Such a pulse generator is known from US-A-4 282 415.
  • the locking element consists of a leaf spring folded into a narrow rectangle, the longitudinal web of which has a bulge which interacts with the locking cams of the locking disc.
  • the locking element is loosely slidably mounted transversely in a housing part. In the rest position, the locking element is held by the locking disc in a central position in which it does not actuate any of the lateral contact springs.
  • the rest position of the locking disc is achieved by two return leaf springs, which are provided in another housing part and interact with cams of a second cam ring, which are arranged on the side of the locking wheel opposite the locking cams displacing the locking element.
  • a completely different type of pulse generator is known from DE-A-3 102 404.
  • a specially shaped spiral spring which also serves as a contact spring, with a straight central section and lateral winding groups attached to one axis. Radially protruding wire end pieces of the winding groups protrude between lateral fixed contact pairs.
  • the middle section can be pivoted by teeth of a gearwheel, depending on the direction of rotation, one of the winding groups pivots and its wire end piece lifts off one fixed contact and is moved against the other fixed contact of the assigned contact pair, and the other winding group is tensioned and brings about a restoring torque on the gearwheel. In the rest position, the middle section defines the rest position of the gear.
  • a pulse generator is also known from DE-A-3 136 598, in which the two contact pairs consist of a single central contact leaf spring and two outer contact springs associated therewith.
  • the middle contact spring engages with its free end in the toothing of a spur gear and holds it in the central position in the rest position.
  • the middle contact spring can be deflected laterally to one of the fixed contacts depending on the direction of rotation.
  • the end of the middle contact spring slips over the catch of the tooth that is moving and jumps into the following gear groove and thus into a position in which none of the fixed contacts is touched.
  • the construction effort is very low here. However, contact bruises and high abrasion of the teeth of the gearwheel can occur.
  • the object of the present invention is to produce a pulse generator of the type mentioned at the outset with the least possible expenditure on components and to keep the abrasion of the detent cams low while still giving the user a perfect detent feeling. In addition, bounce-free contact should be guaranteed.
  • 1 denotes a cup-shaped housing part, which can preferably be sealed tightly with a housing plate 2.
  • a bearing bush 3 is formed or fastened, in which an axis 4 of a locking disk 5 is rotatable, but is non-displaceably supported by a locking washer 6.
  • a spiral spring 10 serving as a locking element is inserted in the recesses 8, 9 thereof without or with only a slight pretension. This is arranged so that it is in the area of one clamping point, e.g. the recess 8, can cooperate with the locking cams 12 provided on the end face 11 of the locking disc 5, i.e. that it engages in a groove 13 between two locking cams 12 without or with little pretension.
  • the center line 14 of the spiral spring 10 runs perpendicular to the direction of the locking cams 12 and also here parallel to the axis 4.
  • Fig. 2 above the locking disc 5 four contact springs 15, 16, 17, 18 are arranged, which are fastened in the lower, straight housing wall 19, e.g. are embedded or molded, and project as connections 20, 21, 22, 23 downward from the housing part 1 or the housing wall 19.
  • the contact springs 15, 16, 17, 18 are provided with contacts 24 and two contact springs 15, 16 and 17, 18 form a pair of contacts 25 and 26, respectively.
  • the coil spring 10 is arranged between the inner contact springs 16 and 17 so that none of them is actuated when latching into a throat 13. If the locking disk 5 in FIG. 2 is rotated counterclockwise, for example to the left, the coil spring 10 is initially deflected to the left and takes a portion 27 of its contact spring 16 with it between the catch point (catch coil spring 10 with cams 12 or throat 13), in particular between the center and the other clamping point, i.e. the recess 9 . The coil spring 10 is tensioned. Finally, the contacts 24 of the contact springs 15, 16 meet and make contact. This increases the restoring force acting on the coil spring.
  • the locking cams 12 and throats 13 are arranged in the direction of the axis 4 such that they point towards the contact springs 15, 16, 17, 18.
  • the spiral spring 10 is arranged between the locking disk 5 and the contact springs 15, 16, 17, 18 parallel or at least approximately parallel to the plane of the disk. It is inserted on one side in a recess 9 of the housing plate 2 and its free end 28 lies, possibly with a slight pretension, in a throat 13.
  • a tab 29 formed on the inner contact springs 16, 17 can be taken along by the coil spring 10. The mode of operation corresponds to that described using the previous example.
  • the locking disk can be driven via a transmission gear, in particular a spur gear transmission.
  • a transmission gear which acts in two planes, is shown schematically in FIG. 6. It is housed between the housing cover 7 and the locking disk 5 to save space.
  • a larger spur gear 32 is rigidly coupled, which in turn drives a smaller spur gear 33 rigidly coupled to the locking disk 5.
  • the axis 4 also serves to support the locking disk 5 with the spur gear 33.
  • the spur gears 31, 32 are mounted on an axle 34 which is molded or fastened to the housing part 1.

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  • Surgical Instruments (AREA)
  • Contacts (AREA)
  • Transmission Devices (AREA)
  • Springs (AREA)
  • Electrotherapy Devices (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Lock And Its Accessories (AREA)
  • Mechanical Operated Clutches (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Saccharide Compounds (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Gears, Cams (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

An impulse generator includes two pairs of contacts and one indexing disk whose indexing notches are capable of moving a central resilient indexing element. The indexing element moves either toward the one or the other pair of contacts depending on the rotation of the indexing disk. Each pair of contacts is a separate contact spring assembly (15, 16; 17, 18). The indexing disk is positioned above the contact springs (15, 16; 17, 18). The indexing element is a spiral spring (10) clamped either at one or at both ends, and disposed in such a way that the centerline (14) thereof extends in relation to the indexing notches (12' and 12) so that the latter deflects the spiral spring (10) laterally toward the contact springs (15, 16; 17, 18). The spiral spring (10) is laterally deflected to actuate the respective inner contact spring (16, 17) of a contact spring assembly (15, 16; 17, 18). This results in reduced abrasive by wear of the indexing disk, and insures that a good electrical contact is reliably made.

Description

Die vorliegende Erfindung bezieht sich auf einen Impulsgenerator gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a pulse generator according to the preamble of claim 1.

Ein derartiger Impulsgenerator ist bekannt aus der US-A-4 282 415. Bei diesem besteht das Rastelement aus einer zu einem schmalen Rechteck gefalteten Blattfeder, deren Längssteg eine Ausbauchung aufweist, die mit den Rastnocken der Rastscheibe zusammenwirkt. Das Rastelement ist in einem Gehäuseteil lose quer verschiebbar gelagert. In Ruhestellung ist das Rastelement von der Rastscheibe in einer Mittelstellung gehalten, in der es keinen der seitlichen Kontaktfedern betätigt. Die Ruhestellung der Rastscheibe wird durch zwei Rückstell-Blattfedern erreicht, die in einem anderen Gehäuseteil vorgesehen sind und mit Nocken eines zweiten Nockenkranzes zusammenwirken, die auf der der Seite mit den das Rastelement verschiebenden Rastnocken gegenüberliegenden Seite des Rastrades angeordnet sind.Such a pulse generator is known from US-A-4 282 415. In this the locking element consists of a leaf spring folded into a narrow rectangle, the longitudinal web of which has a bulge which interacts with the locking cams of the locking disc. The locking element is loosely slidably mounted transversely in a housing part. In the rest position, the locking element is held by the locking disc in a central position in which it does not actuate any of the lateral contact springs. The rest position of the locking disc is achieved by two return leaf springs, which are provided in another housing part and interact with cams of a second cam ring, which are arranged on the side of the locking wheel opposite the locking cams displacing the locking element.

Ein Impulsgeber ganz anderer Bauart ist aus der DE-A-3 102 404 bekannt. Dort ist eine speziell geformte, zugleich als Kontaktfeder dienende Spiralfeder mit einem geraden Mittelabschnitt und seitlichen Windungsgruppen auf eine Achse aufgesteckt. Radial abstehende Drahtendstücke der Windungsgruppen ragen zwischen seitliche Festkontaktpaare. Der Mittelabschnitt ist durch Zähne eines Zahnrades verschwenkbar, wobei je nach Drehrichtung eine der Windungsgruppen verschwenkt und deren Drahtendstück vom einen Festkontakt abhebt und gegen den anderen Festkontakt des zugeordneten Kontaktpaares bewegt wird und die jeweils andere Windungsgruppe wird gespannt und bewirkt ein Rückstellmoment auf das Zahnrad. In Ruhestellung legt der Mittelabschnitt die Ruhelage des Zahnrades fest.A completely different type of pulse generator is known from DE-A-3 102 404. There is a specially shaped spiral spring, which also serves as a contact spring, with a straight central section and lateral winding groups attached to one axis. Radially protruding wire end pieces of the winding groups protrude between lateral fixed contact pairs. The middle section can be pivoted by teeth of a gearwheel, depending on the direction of rotation, one of the winding groups pivots and its wire end piece lifts off one fixed contact and is moved against the other fixed contact of the assigned contact pair, and the other winding group is tensioned and brings about a restoring torque on the gearwheel. In the rest position, the middle section defines the rest position of the gear.

Aus der DE-A-3 136 598 ist weiterhin ein Impulsgenerator bekannt, bei dem die beiden Kontaktpaare aus einer einzigen mittleren Kontaktblattfeder und zwei dieser zugeordneten äußeren Kontaktfedern bestehen. Die mittlere Kontaktfeder greift mit ihrem freien Ende in die Zahnung eines Stirnzahnrades ein und hält dieses in Ruhelage in einer Mittelstellung. Beim Drehen des Zahnrades kann die mittlere Kontaktfeder je nach Drehrichtung seitlich zu einem der Festkontakte ausgelenkt werden. Beim Weiterdrehen rutscht das Ende der mittleren Kontaktfeder über die Rast des dieses bewegenden Zahnes und springt in die folgende Zahnrad-Nut und damit in eine Stellung, in der keiner der Festkontakte berührt wird. Der Bauaufwand ist hier sehr gering. Jedoch kann es zu Kontaktprellungen und zu einem hohen Abrieb der Zähne des Zahnrades kommen.A pulse generator is also known from DE-A-3 136 598, in which the two contact pairs consist of a single central contact leaf spring and two outer contact springs associated therewith. The middle contact spring engages with its free end in the toothing of a spur gear and holds it in the central position in the rest position. When turning the gear wheel, the middle contact spring can be deflected laterally to one of the fixed contacts depending on the direction of rotation. When turning further, the end of the middle contact spring slips over the catch of the tooth that is moving and jumps into the following gear groove and thus into a position in which none of the fixed contacts is touched. The construction effort is very low here. However, contact bruises and high abrasion of the teeth of the gearwheel can occur.

Mit der vorliegenden Erfindung soll die Aufgabe gelöst werden, einen Impulsgenerator der eingangs genannten Art mit möglichst geringem Bauteileaufwand zu fertigen und dabei den Abrieb der Rastnocken gering zu halten und trotzdem dem Benutzer ein einwandfreies Rastgefühl zu vermitteln. Außerdem soll eine prellfreie Kontaktgabe gewährleistet sein.The object of the present invention is to produce a pulse generator of the type mentioned at the outset with the least possible expenditure on components and to keep the abrasion of the detent cams low while still giving the user a perfect detent feeling. In addition, bounce-free contact should be guaranteed.

Gelöst wird diese Aufgabe durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale. Durch die Einspannung der nicht spezielle vorgebogenen Spiralfeder und deren Auflage auf der Zahnung des Rastrades mit ihrem relativ großen Außendurchmesser wird eine einwandfreie seitliche Auslenkung derselben und eine prellfreie Kontaktgabe bei guten Rasteigenschaften und geringem Abrieb der Rastnocken des Rastrades gewährleistet.This object is achieved by the features specified in the characterizing part of claim 1. By clamping the non-special pre-bent coil spring and placing it on the toothing of the ratchet wheel with its relatively large outer diameter, it ensures perfect lateral deflection of the same and bounce-free contact with good latching properties and low abrasion of the latching cams of the ratchet wheel.

Weitere vorteilhafte Einzelheiten der Erfindung sind in den Unteransprüchen angegeben und nachfolgend anhand der in der Zeichnung veranschaulichten Ausführungsbeispiele beschreiben. Dabei zeigen:

  • Fig. 1 einen erfindungsgemäßen lmpulsgenerator mit senkrechter Spiralfeder von der Seite im Schnitt,
  • Fig. 2 eine Ansicht von unten bei abgenommener Gehäuseplatte,
  • Fig. 3 eine Ausführung mit radialer Spiralfeder von der Seite im Schnitt,
  • Fig. 4 eine Ansicht gemäß dem Schnitt A-B der Fig. 3,
  • Fig. 5 eine Teilansicht der Rastscheibe gemäß den Fig. 3 und 4 und
  • Fig. 6 ein Prinzipschema eines Impulsgenerators mit einem Stirnzahnradgetriebe.
Further advantageous details of the invention are specified in the subclaims and are described below with reference to the exemplary embodiments illustrated in the drawing. Show:
  • 1 shows an inventive pulse generator with a vertical coil spring from the side in section,
  • 2 is a bottom view with the housing plate removed,
  • 3 shows an embodiment with a radial spiral spring from the side in section,
  • 4 is a view according to section AB of FIG. 3,
  • Fig. 5 is a partial view of the locking disc according to FIGS. 3 and 4 and
  • Fig. 6 is a schematic diagram of a pulse generator with a spur gear.

In den Fig. 1 und 2 ist mit 1 ein topfförmiges Gehäuseteil bezeichnet, das mit einer Gehäuseplatte 2 vorzugsweise dicht verschließbar ist. Am Gehäuseteil 1 ist eine Lagerbuchse 3 angeformt oder befestigt, in der eine Achse 4 einer Rastscheibe 5 drehbar, jedoch durch eine Sicherungsscheibe 6 unverschiebbar gelagert ist.1 and 2, 1 denotes a cup-shaped housing part, which can preferably be sealed tightly with a housing plate 2. On the housing part 1, a bearing bush 3 is formed or fastened, in which an axis 4 of a locking disk 5 is rotatable, but is non-displaceably supported by a locking washer 6.

Zwischen Gehäuseteildecke 7 und Gehäuseplatte 2 ist in Vertiefungen 8, 9 derselben eine als Rastelement dienende Spiralfeder 10 ohne oder mit nur geringer Vorspannung eingesetzt. Diese ist so angeordnet, daß sie im Bereich der einen Einspannstelle, also z.B. der Vertiefung 8, mit den an der Stirnfläche 11 der Rastscheibe 5 vorgesehenen Rastnocken 12 zusammenwirken kann, d.h., daß sie ohne oder mit geringer Vorspannung in eine Kehle 13 zwischen zwei Rastnocken 12 eingreift. Die Mittellinie 14 der Spiralfeder 10 verläuft senkrecht zur Richtung der Rastnocken 12 und außerdem hier parallel zur Achse 4.Between the housing part cover 7 and the housing plate 2, a spiral spring 10 serving as a locking element is inserted in the recesses 8, 9 thereof without or with only a slight pretension. This is arranged so that it is in the area of one clamping point, e.g. the recess 8, can cooperate with the locking cams 12 provided on the end face 11 of the locking disc 5, i.e. that it engages in a groove 13 between two locking cams 12 without or with little pretension. The center line 14 of the spiral spring 10 runs perpendicular to the direction of the locking cams 12 and also here parallel to the axis 4.

In Fig. 2 oberhalb der Rastscheibe 5 sind vier Kontaktfedern 15,16,17,18 angeordnet, die in der unteren, gerade verlaufenden Gehäusewand 19 befestigt, z.B. eingebettet oder eingeformt, sind und als Anschlüsse 20, 21, 22, 23 nach unten aus dem Gehäuseteil 1 bzw. der Gehäusewand 19 herausragen. Die Kontaktfedern 15,16,17,18 sind mit Kontakten 24 versehen und je zwei Kontaktfedern 15, 16 und 17, 18 bilden ein Kontaktpaar 25 bzw. 26.In Fig. 2 above the locking disc 5, four contact springs 15, 16, 17, 18 are arranged, which are fastened in the lower, straight housing wall 19, e.g. are embedded or molded, and project as connections 20, 21, 22, 23 downward from the housing part 1 or the housing wall 19. The contact springs 15, 16, 17, 18 are provided with contacts 24 and two contact springs 15, 16 and 17, 18 form a pair of contacts 25 and 26, respectively.

Die Spiralfeder 10 ist zwischen den inneren Kontaktfedern 16 und 17 so angeordnet, daß bei Rastung in eine Kehle 13 keine derselben betätigt wird. Wird die Rastscheibe 5 in Fig. 2 z.B. nach links, also entgegen dem Uhrzeigersinn gedreht, so wird die Spiralfeder 10 zunächst nach links ausgelenkt und nimmt mit einem Abschnitt 27 ihres zwischen der Raststelle (Rastung Spiralfeder 10 mit Nocken 12 bzw. Kehle 13), insbesondere zwischen der Mitte und der anderen Einspannstelle, also der Vertiefung 9, die Kontaktfeder 16 mit. Dabei wird die Spiralfeder 10 gespannt. Schließlich treffen die Kontakte 24 der Kontaktfedern 15, 16 zusammen und geben Kontakt. Dadurch erhöht sich die auf die Spiralfeder wirkende Rückstellkraft. Durch letztere und die Eigenspannung der Spiralfeder 10 wird diese schließlich über den rastenden Rastnocken 12' nach außen ausgelenkt und springt in die nächstfolgende Kehle 13. Dadurch kommt die Spiralfeder 10 praktisch in die Ausgangslage und ebenso die Kontaktfeder 16. Das Kontaktpaar 25 ist damit wieder getrennt. In gleicher Weise wird das Kontaktpaar 26 betätigt, wenn die Rastscheibe 5 in der Darstellung gemäß Fig. 2 nach rechts, also im Uhrzeigersinn, gedreht wird. Auf diese Weise ist die Links-Rechts-Erkennung durch vollkommen voneinander getrennte Kontaktpaare 25, 26 erreicht. Da die Spiralfeder 10 mit einem relativ großen Radius an den Rastnocken 12 anliegt, wird der Abrieb gering gehalten und dennoch eine gute Rastwirkung erzielt, die wiederum eine gute Kontaktgabe gewährleistet.The coil spring 10 is arranged between the inner contact springs 16 and 17 so that none of them is actuated when latching into a throat 13. If the locking disk 5 in FIG. 2 is rotated counterclockwise, for example to the left, the coil spring 10 is initially deflected to the left and takes a portion 27 of its contact spring 16 with it between the catch point (catch coil spring 10 with cams 12 or throat 13), in particular between the center and the other clamping point, i.e. the recess 9 . The coil spring 10 is tensioned. Finally, the contacts 24 of the contact springs 15, 16 meet and make contact. This increases the restoring force acting on the coil spring. Due to the latter and the inherent tension of the spiral spring 10, it is finally deflected outward via the latching locking cams 12 'and jumps into the next throat 13. As a result, the spiral spring 10 practically comes into the starting position and likewise the contact spring 16. The contact pair 25 is thus separated again . In the same way, the contact pair 26 is actuated when the locking disk 5 is rotated clockwise in the illustration according to FIG. 2, that is to say clockwise. In this way, the left-right detection is achieved by completely separate contact pairs 25, 26. Since the spiral spring 10 rests on the locking cams 12 with a relatively large radius, the abrasion is kept low and a good locking effect is achieved, which in turn ensures good contact.

Beim Ausführungsbeispiel gemäß den Fig. 3 bis 5 sind die Rastnocken 12 und Kehlen 13 in Richtung der Achse 4 so angeordnet, daß sie zu den Kontaktfedern 15, 16, 17, 18 hin weisen. Die Spiralfeder 10 ist hierbei zwischen Rastscheibe 5 und den Kontaktfedern 15,16,17,18 parallel oder zumindest annähernd parallel zur Scheibenebene angeordnet. Sie steckt einseitig in einer Vertiefung 9 der Gehäuseplatte 2 und ihr freies Ende 28 liegt, ggfs. mit leichter Vorspannung, in einer Kehle 13. Eine an den inneren Kontaktfedern 16, 17 angeformte Lasche 29 kann von der Spiralfeder 10 mitgenommen werden. Die Wirkungsweise entspricht derjenigen wie anhand des vorigen Beispiels beschrieben.3 to 5, the locking cams 12 and throats 13 are arranged in the direction of the axis 4 such that they point towards the contact springs 15, 16, 17, 18. The spiral spring 10 is arranged between the locking disk 5 and the contact springs 15, 16, 17, 18 parallel or at least approximately parallel to the plane of the disk. It is inserted on one side in a recess 9 of the housing plate 2 and its free end 28 lies, possibly with a slight pretension, in a throat 13. A tab 29 formed on the inner contact springs 16, 17 can be taken along by the coil spring 10. The mode of operation corresponds to that described using the previous example.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung kann der Antreib der Rastscheibe über ein Übersetzungsgetriebe, insbesondere ein Stirnzahnradgetriebe, erfolgen. Ein solches, in zwei Ebenen wirkendes Getriebe ist schematisch in Fig. 6 dargestellt. Es ist zwischen der Gehäusedecke 7 und der Rastscheibe 5 platzsparend untergebracht. Ein Stirnzahnrad 30 mit geeignetem Durchmesser und einer geeigneten Zähnezahl, das mit der Achse 4 verbunden ist und durch dieses angetrieben wird, treibt ein kleineres Stirnzahnrad 31 an. Mit letzterem ist ein größeres Stirnzahnrad 32 starr gekuppelt, das seinerseits ein kleineres, mit der Rastscheibe 5 starr gekuppeltes Stirnzahnrad 33 antreibt. Die Achse 4 dient hierbei zugleich zur Lagerung der Rastscheibe 5 mit dem Stirnzahnrad 33. Die Stirnzahnräder 31, 32 sind auf einer am Gehäuseteil 1 angeformten oder befestigten Achse 34 gelagert.According to an advantageous embodiment of the invention, the locking disk can be driven via a transmission gear, in particular a spur gear transmission. Such a transmission, which acts in two planes, is shown schematically in FIG. 6. It is housed between the housing cover 7 and the locking disk 5 to save space. A spur gear 30 with a suitable diameter and a suitable number of teeth, which is connected to the axis 4 and is driven by it, drives a smaller spur gear 31. With the latter, a larger spur gear 32 is rigidly coupled, which in turn drives a smaller spur gear 33 rigidly coupled to the locking disk 5. The axis 4 also serves to support the locking disk 5 with the spur gear 33. The spur gears 31, 32 are mounted on an axle 34 which is molded or fastened to the housing part 1.

Claims (10)

1. Impulse generator having two pairs of contacts (25, 26) spaced from each other in one plane, each of which comprises separate contact spring sets (15, 16; 17, 18) wherein the contact springs, situated opposite to each other, of the contact pairs can be moved, in the closing position of the contact in question, by a springing indexing element (10) disposed between the said springs which can be deflected towards both sides, that is, towards one of the contact pairs in each case, and also having an indexing disk (5) with indexing cams (12) disposed in a plane different from the plane of the contact springs by which disk (5) with cams (12) the indexing element (10) can be deflected, depending on the direction of rotation, to the one side or the other towards the one or the other contact pair (25, 26) and, in the end position of the deflection position of the indexing element (10), the part of the indexing element which is in operating connection with an indexing cam of the indexing disk (5) is springingly deflectable in a direction perpendicular to the direction of lateral movement of the indexing element and, after overcoming the indexing moment, engages in the position between the indexing cams (12) which follow in the direction of rotation, characterized by the following features:
the indexing element is in the form of a spiral spring (10) clamped on one side or both sides;
the spiral spring (10) is disposed between the movable contact springs (16, 17) in such a way that its centre line (14), where the indexing disk (5) is shaped in the manner of a spur gear, runs parallel to the axis of rotation (4) thereof or, where the indexing disk (5) is shaped in the manner of a crown wheel, runs parallel to the plane of the indexing disk (5);
the spiral spring (10) lies with its outer radius, without or with slight pretensioning, in a recess (13) between two indexing cams (12, 12');
the spiral spring (10) is inserted in such a way that, in the rest position, it does not actuate any of the movable contact springs (16, 17) and fixes the rest position of the indexing disk (5).
2. An impulse generator as claimed in Claim 1, characterized in that said spiral spring (10) is clamped or mounted on one side and that said indexing cams (12), in the case of an indexing disk (5) shaped in the manner of a crown wheel, engage on the outer area of the free spring leg (28).
3. An impulse generator as claimed in Claim 1, characterized in that said spiral spring (10) is clamped or mounted on both sides and that said indexing cams (12), in the case of an indexing disk (5) shaped in the manner of a spur gear, engage on the deflectable part of said spring.
4. An impulse generator as claimed in Claim 3, characterized in that said indexing cams (12) engage near one clamping point (8 or 9) of said spiral spring (10) and that the inner contact springs (16, 17) are capable of being actuated through a section of the area between the indexing point, especially between the centre of said spiral spring (10) and the other clamping point (9 or 8) of said spiral spring (10).
5. An impulse generator as claimed in one of Claims 1 to 4, characterized in that the housing comprises a pot-shaped housing member (1) with a bearing bushing (3) moulded thereto.
6. An impulse generator as claimed in Claim 5, characterized in that said contact springs (15, 16, 17, 18) are inserted or moulded into one wall (19) of said housing with through-going terminal leads (20, 21, 22, 23) projecting towards the outside.
7. An impulse generator as claimed in one of Claims 1 to 6, characterized in that said indexing disk (5) is capable of being driven via a transmission gear disposed inside the housing.
8. An impulse generator as claimed in Claim 7, characterized in that said transmission gear consists of a spur gearing (30-33).
9. An impulse generator as claimed in Claim 7 or 8, characterized in that said gear is accommodated in said pot-shaped housing member (1).
10. An impulse generator as claimed in Claim 9, characterized in that said gear is provided between the wall (7) of said housing and said indexing disk (5).
EP84105415A 1983-05-28 1984-05-12 Impulse generator Expired - Lifetime EP0127043B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84105415T ATE58612T1 (en) 1983-05-28 1984-05-12 PULSE GENERATOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3319404 1983-05-28
DE3319404A DE3319404C2 (en) 1983-05-28 1983-05-28 Pulse generator

Publications (3)

Publication Number Publication Date
EP0127043A2 EP0127043A2 (en) 1984-12-05
EP0127043A3 EP0127043A3 (en) 1987-08-26
EP0127043B1 true EP0127043B1 (en) 1990-11-22

Family

ID=6200117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105415A Expired - Lifetime EP0127043B1 (en) 1983-05-28 1984-05-12 Impulse generator

Country Status (7)

Country Link
US (1) US4594483A (en)
EP (1) EP0127043B1 (en)
JP (1) JPS6018014A (en)
AT (1) ATE58612T1 (en)
CA (1) CA1244071A (en)
DE (2) DE3319404C2 (en)
ES (1) ES8507742A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543652A1 (en) * 1985-12-11 1987-06-19 Standard Elektrik Lorenz Ag PULSE GENERATOR
FR2637119A1 (en) * 1988-09-23 1990-03-30 Thomson Csf MANUAL CONTROL DEVICE BY DRIVING A ROTATING BUTTON
US5126142A (en) * 1989-07-18 1992-06-30 Alza Corporation Dispenser comprising ionophore

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838500Y2 (en) * 1974-12-09 1983-08-31 株式会社ケンウッド Pulse heart rate switch
JPS5641902Y2 (en) * 1975-08-15 1981-09-30
DE2658105B2 (en) * 1976-12-22 1979-03-22 Diehl Gmbh & Co, 8500 Nuernberg Contact controlled pulse generator
JPS6029147Y2 (en) * 1979-05-02 1985-09-04 アルプス電気株式会社 rotary pulse switch
AT366833B (en) * 1980-06-06 1982-05-10 Uher Ag MECHANICAL PULSE
DE3136598A1 (en) * 1981-09-15 1983-03-31 Horn Hans Joachim Pulse generator

Also Published As

Publication number Publication date
ATE58612T1 (en) 1990-12-15
ES532770A0 (en) 1985-06-01
DE3319404C2 (en) 1986-01-23
EP0127043A3 (en) 1987-08-26
JPH0354896B2 (en) 1991-08-21
DE3319404A1 (en) 1984-11-29
ES8507742A1 (en) 1985-06-01
CA1244071A (en) 1988-11-01
EP0127043A2 (en) 1984-12-05
US4594483A (en) 1986-06-10
JPS6018014A (en) 1985-01-30
DE3483627D1 (en) 1991-01-03

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