EP0304681A2 - Electric switch clock with an exchangeable commutation disc - Google Patents

Electric switch clock with an exchangeable commutation disc Download PDF

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Publication number
EP0304681A2
EP0304681A2 EP88112536A EP88112536A EP0304681A2 EP 0304681 A2 EP0304681 A2 EP 0304681A2 EP 88112536 A EP88112536 A EP 88112536A EP 88112536 A EP88112536 A EP 88112536A EP 0304681 A2 EP0304681 A2 EP 0304681A2
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EP
European Patent Office
Prior art keywords
switching
pinion
drive
drive shafts
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88112536A
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German (de)
French (fr)
Other versions
EP0304681A3 (en
EP0304681B1 (en
Inventor
Manfred Ulmer
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.)
Graesslin GmbH
Graesslin KG
Original Assignee
Graesslin GmbH
Graesslin KG
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 Graesslin GmbH, Graesslin KG filed Critical Graesslin GmbH
Publication of EP0304681A2 publication Critical patent/EP0304681A2/en
Publication of EP0304681A3 publication Critical patent/EP0304681A3/en
Application granted granted Critical
Publication of EP0304681B1 publication Critical patent/EP0304681B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
    • G04C23/02—Constructional details
    • G04C23/08—Programming means

Definitions

  • the invention relates to an electromechanical time switch with interchangeable switching disks, which can be programmed individually, in particular with a daily or weekly program, and are accordingly driven in rotation at different speeds, with a time-controlled drive for the respective switching disk, which has a drive shaft with a pinion arranged on one side engages through the transmission board behind the switching disc and engages with a ring gear on the respectively arranged switching disc.
  • a time-controlled drive unit identical in construction for all the switching disks provided, in particular together with the contact arrangement which is acted upon by the respective switching disk and can be produced with the mechanical and electrical installation devices. It is only during final assembly in the factory or only when the time switch is used that the decision is made as to which type of switching disk and with which program is to be placed on the time switch. It should be ensured that the technical effort for such a universal, in particular programmable with a daily or weekly program switching disc that can be equipped, the drive unit is not larger than that of a normal daily or weekly program timer.
  • EP-PS 0 051 262 is a multi-range program switching mechanism with a mechanical drive unit driven by a motor for at least two different rotational speeds of the drive of a detachably mounted mechanical program carrier for controlling mechanical and / or electrical or electronic switching devices by the Sides or surfaces of the program carrier arranged switching cams, switching tabs or other control means known.
  • a drive shaft with a pinion arranged on one side extends through the gearbox and comes into engagement with a toothed ring of the respectively arranged switching disk.
  • the drive shaft with the pinion is arranged eccentrically to the bearing axis of the switching disc.
  • the invention has for its object a technically simple and economical solution of a drive unit to be found with at least two drive shafts rotating at different speeds, in which the pinion on the drive shafts, in particular with regard to the number of teeth and / or the module, is always the same and the drive speed required for a specific switching disc can be provided without problems .
  • FIG. 1 shows a time switch in a housing 12 with a gear plate 1 of the drive unit, which is recessed on the front side and has at least two drive shafts 2 and 3, which are arranged eccentrically to the bearing axis 9 of a switching disk 5 and which are provided with coaxial blind holes 7 or bolts 8 are.
  • 13 denotes a bearing ring running coaxially with the bearing axis 9 for the switching disk removed in this figure.
  • 14 denotes the switching star of a contact arrangement, not shown.
  • the front ends 15 of the drive shafts 2, 3 are arranged sufficiently flat on the side of the transmission board 1 adjacent to the switching disk 5 to the surface 16 of the transmission board 1 there.
  • 6 be draws the pinion, which is attached to one of the drive shafts 2, 3.
  • 17 shows the ring gear on the switching disc 5, with which the pinion 6 is engaged.
  • the switching disc 5 is mounted with a coaxial bearing flange 18 on the bearing ring 13 on the transmission board 1.
  • 19 denotes a pointer mechanism in the center of the switching disk 5, which is arranged sunk there.
  • the switching disc 5 can also be axially limited, detachably fastened by means of this pointer mechanism 19. Instead of this pointer mechanism 19, a screw fastening for securing the position of the switching disk 5 can also be provided.
  • the switching disc 5 can also be mounted on a bearing axis 9, not shown in this figure, indicated in FIG. 1.
  • FIG. 3 shows the reversible pinion 6 with a coaxial profiled bolt 10, which in particular has a square cross section and which can be inserted into a blind hole 7 with a corresponding cross section in the drive shafts 2, 3, as shown in FIG. 2.
  • a profiled hole 11, in particular a square cross section, on the pinion 6 can also be provided, as shown in FIG. 4.
  • the drive shafts 2, 3 are provided with coaxial profiled bolts 8 arranged on one side, as shown in FIG. 2.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Electromechanical Clocks (AREA)

Abstract

In an electromechanical switch clock with exchangeable commutation discs (5) which can be programmed individually in particular with a day programme or with a week programme and correspondingly rotate at different speeds of rotation from one another, having a timetimed drive for the respective commutation disc (5), which drive engages through the gear plate (1) behind the commutation disc (5) with a drive shaft (2, 3) with a pinion (6) arranged on one side and engages with a gear wheel (17) on the respective commutation disc (5), a drive shaft (2, 3) which rotates at the corresponding speed of rotation is provided for each of the commutation discs (5) provided rotating at a certain speed of rotation, said drive shafts being arranged eccentrically with respect to the bearing axis (9) of the commutation discs (5). <IMAGE>

Description

Die Erfindung betrifft eine elektromechanische Schaltuhr mit austauschbaren Schaltscheiben, die einzeln, insbesondere mit einem Tages- oder mit einem Wochenprogramm, programmierbar sind und dementsprechend mit zueinander unterschiedlicher Drehzahl umlaufend angetrieben sind, mit einem zeitgesteuer­ten Antrieb für die jeweilige Schaltscheibe, der mit einer Antriebswelle mit einem einseitig angeordneten Ritzel durch die Getriebeplatine hinter der Schaltscheibe hindurchgreift und mit einem Zahnkranz an der jeweiligs angeordneten Schalt­scheibe in Eingriff kommt.The invention relates to an electromechanical time switch with interchangeable switching disks, which can be programmed individually, in particular with a daily or weekly program, and are accordingly driven in rotation at different speeds, with a time-controlled drive for the respective switching disk, which has a drive shaft with a pinion arranged on one side engages through the transmission board behind the switching disc and engages with a ring gear on the respectively arranged switching disc.

Bei derartigen Schaltuhren ist es zur Erzielung einer ratio­nellen Fertigung und wirtschaftlichen Lagerhaltung erforder­lich, daß eine, für alle vorgesehenen Schaltscheiben bauglei­che zeitgesteuerte Antriebseinheit insbesondere zusammen mit der Kontaktanordnung die von der jeweiligen Schaltscheibe be­aufschlagt wird und mit den mechanischen und elektrischen In­stallationseinrichtungen hergestellt werden kann. Erst bei der Endmontage in der Fabrik oder erst beim Anwender der Schalt­uhr wird die Entscheidung gefällt, welche Art von Schalt­scheibe und mit welchem Programm wird auf die Schaltuhr auf­gesetzt. Dabei soll sichergestellt sein, daß der technische Aufwand für eine derartige, universell, insbesondere mit ei­nem Tages- oder einem Wochenprogramm programmierbare Schalt­ scheibe ausrüstbare, Antriebseinheit nicht größer ist, als bei einer üblichen Tages- ode Wochenprogramm-Schaltuhr.In such time switches it is necessary to achieve a rational production and economical storage that a time-controlled drive unit, identical in construction for all the switching disks provided, in particular together with the contact arrangement which is acted upon by the respective switching disk and can be produced with the mechanical and electrical installation devices. It is only during final assembly in the factory or only when the time switch is used that the decision is made as to which type of switching disk and with which program is to be placed on the time switch. It should be ensured that the technical effort for such a universal, in particular programmable with a daily or weekly program switching disc that can be equipped, the drive unit is not larger than that of a normal daily or weekly program timer.

Aus der EP-PS 0 051 262 ist ein Mehrbereichs-Programmschalt­werk mit einer, von einem Motor angetriebenen, mechanischen Antriebseinheit für mindestens zwei voneinander verschiedene Umlaufgeschwindigkeiten des Antriebs eines lösbar gelagerten mechanischen Programmträgers zur Steuerung mechanischer und/­oder elektrischer bzw. elektronischer Schalteinrichtungen durch an den Seiten oder Flächen des Progammträgers angeordneten Schaltnocken, Schaltreiter oder sonstige Steuerungsmittel be­kannt. Bei einer der Ausführungen der Antriebseinheit dieses Mehrbereichs-Programmschaltwerkes greift eine Antriebswelle mit einem einseitig angeordneten Ritzel durch die Getriebepla­ine hindurch und kommt mit einem Zahnkranz der jeweils ange­ordneten Schaltscheibe in Eingriff. Die Antriebswelle mit dem Ritzel ist dort exzentrisch zur Lagerachse der Schaltscheibe angeordnet. Es ist dort bei dieser einzelnen Antriebswelle für mehrere austauschbare Schaltscheiben allerdings erforder­lich, daß zur Erzielung der richtigen Umlauf-Drehzahl der Schaltscheibe die Zähnezahl und/oder der Modul des Ritzels und der Zahnkränze an den Schaltscheiben von Fall zu Fall anzupassen, d.h. verschieden sein können.From EP-PS 0 051 262 is a multi-range program switching mechanism with a mechanical drive unit driven by a motor for at least two different rotational speeds of the drive of a detachably mounted mechanical program carrier for controlling mechanical and / or electrical or electronic switching devices by the Sides or surfaces of the program carrier arranged switching cams, switching tabs or other control means known. In one of the versions of the drive unit of this multi-range program switching mechanism, a drive shaft with a pinion arranged on one side extends through the gearbox and comes into engagement with a toothed ring of the respectively arranged switching disk. The drive shaft with the pinion is arranged eccentrically to the bearing axis of the switching disc. With this single drive shaft for several interchangeable indexing disks, however, it is necessary to adapt the number of teeth and / or the module of the pinion and the toothed rings on the indexing disks from case to case in order to achieve the correct rotational speed of the indexing disk, i.e. can be different.

Der Erfindung liegt die Aufgabe zugrunde eine technisch ein­fache und wirtschaftliche Lösung einer Antriebseinheit mit mindestens zwei, mit in der Drehzahl unterschiedlich um­laufenden, Antriebswellen zu finden, bei denen das Ritzel auf den Antriebswellen, insbesondere hinsichtlich der Zähne­zahl und/oder des Moduls, immer gleich ist und die für eine bestimmte Schaltscheibe erforderliche Antriebs-Drehzahl problem­los bereitgestellt werden kann.The invention has for its object a technically simple and economical solution of a drive unit to be found with at least two drive shafts rotating at different speeds, in which the pinion on the drive shafts, in particular with regard to the number of teeth and / or the module, is always the same and the drive speed required for a specific switching disc can be provided without problems .

Diese Aufgabe der Erfindung wird mit den Merkmalen im kenn­zeichnenden Teil des Patentanspruchs 1 gelöst und in den Un­teransprüchen sind weitere Merkmale beansprucht.This object of the invention is achieved with the features in the characterizing part of patent claim 1 and further features are claimed in the subclaims.

Vorteilhaft bei dieser Ausführung des zeitgesteuerten Antriebs ist nicht nur der einfache Getriebeaufbau, bei dem die An­triebswellen mit den erforderlichen Drehzahlen durch die Ge­triebeplatine hinter der Schaltscheibe hindurchgreifend neben­einander, insbesondere auf einem von der Lagerachse der Schaltscheibe ausgehenden Radius liegen, sondern auch die lösbare, insbesondere steckbare Anordnung des Ritzels auf den Antriebswellen, das beim Austauschen einer Schaltscheibe gegen eine andere, auf die entsprechende Antriebswelle umge­steckt werden kann. Vorteilhaft ist ferner, daß nur ein ein­ziges Ritzel erforderlich ist.An advantage of this version of the time-controlled drive is not only the simple construction of the gearbox, in which the drive shafts at the required speeds through the gearbox behind the switching disc lie side by side, especially on a radius starting from the bearing axis of the switching disc, but also the detachable, in particular pluggable one Arrangement of the pinion on the drive shafts, which can be switched to the corresponding drive shaft when replacing one switching disc with another. It is also advantageous that only a single pinion is required.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen

  • Fig. 1 eine Vorderansicht einer Schaltuhr mit abgenommener Schaltscheibe,
  • Fig. 2 eine Teilschnittansicht durch eine Schaltuhr nach Fig. 1, jedoch mit angeordneter Schaltscheibe,
  • Fig. 3 eine Seitenansicht eines umsteckbaren Ritzels mit koaxial verlaufendem Bolzen und
  • Fig. 4 eine Längsschnittansicht durch ein umsteckbares Ritzel mit koaxial verlaufendem profilierten Loch.
An embodiment of the invention is shown in the drawing and is explained in more detail below. Show it
  • 1 is a front view of a timer with the switching disc removed,
  • 2 is a partial sectional view through a time switch according to FIG. 1, but with the switching disk arranged,
  • Fig. 3 is a side view of a reversible pinion with coaxial bolt and
  • Fig. 4 is a longitudinal sectional view through a reversible pinion with coaxial profile hole.

Die Fig. 1 zeigt eine Schaltuhr in einem Gehäuse 12 mit einer vorderseitig versenkt angeordneten Getriebeplatine 1 der An­triebseinheit mit mindestens zwei vorgesehenen Antriebswellen 2 und 3, die exzentrisch zur Lagerachse 9 einer Schaltscheibe 5 angeordnet sind und die mit koaxial verlaufenden Sacklö­chern 7 oder Bolzen 8 versehen sind. 13 bezeichnet ein zur Lagerachse 9 koaxial verlaufender Lagerring für die in dieser Figur abgenommene Schaltscheibe. 14 bezeichnet den Schalt­stern einer nicht näher dargestellten Kontaktanordnung.1 shows a time switch in a housing 12 with a gear plate 1 of the drive unit, which is recessed on the front side and has at least two drive shafts 2 and 3, which are arranged eccentrically to the bearing axis 9 of a switching disk 5 and which are provided with coaxial blind holes 7 or bolts 8 are. 13 denotes a bearing ring running coaxially with the bearing axis 9 for the switching disk removed in this figure. 14 denotes the switching star of a contact arrangement, not shown.

Wie die Fig. 2 zeigt, sind die stirnseitigen Enden 15 der An­triebswellen 2, 3 auf der, der Schaltscheibe 5 benachbarten Seite der Getriebeplatine 1 zur dortigen Oberfläche 16 der Getriebeplatine 1 hinreichend flächeneben angeordnet. 6 be­ zeichnet das Ritzel, das auf einer der Antriebswellen 2, 3 aufgesteckt ist. 17 zeigt den Zahnkranz an der Schaltscheibe 5, mit dem das Ritzel 6 in Eingriff steht. Die Schaltscheibe 5 ist mit einem koaxialen Lagerflansch 18 auf dem Lagerring 13 an der Getriebeplatine 1 gelagert. 19 bezeichnet ein Zei­gerwerk im Zentrum der Schaltscheibe 5, das dort versenkt angeordnet ist. Mittels diesem Zeigerwerk 19 kann auch die Schaltscheibe 5 axial begrenzt, lösbar befestigt sein. An­stelle dieses Zeigerwerkes 19 kann auch eine Schraubbefesti­gung zur Lagensicherung der Schaltscheibe 5 vorgesehen sein. Auch kann die Schaltscheibe 5 auf einer in dieser Figur nicht gezeichneten, in der Fig. 1 angedeuteten Lagerachse 9 gela­gert seit.As shown in FIG. 2, the front ends 15 of the drive shafts 2, 3 are arranged sufficiently flat on the side of the transmission board 1 adjacent to the switching disk 5 to the surface 16 of the transmission board 1 there. 6 be draws the pinion, which is attached to one of the drive shafts 2, 3. 17 shows the ring gear on the switching disc 5, with which the pinion 6 is engaged. The switching disc 5 is mounted with a coaxial bearing flange 18 on the bearing ring 13 on the transmission board 1. 19 denotes a pointer mechanism in the center of the switching disk 5, which is arranged sunk there. The switching disc 5 can also be axially limited, detachably fastened by means of this pointer mechanism 19. Instead of this pointer mechanism 19, a screw fastening for securing the position of the switching disk 5 can also be provided. The switching disc 5 can also be mounted on a bearing axis 9, not shown in this figure, indicated in FIG. 1.

Die Fig. 3 zeigt das umsteckbare Ritzel 6 mit einem koaxial verlaufenden profilierten Bolzen 10, der insbesondere einen vierkantigen Querschnitt besitzt und der in ein im Querschnitt entsprechendes Sackloch 7 in den Antriebswellen 2, 3 einge­steckt werden kann, wie die Fig. 2 zeigt.FIG. 3 shows the reversible pinion 6 with a coaxial profiled bolt 10, which in particular has a square cross section and which can be inserted into a blind hole 7 with a corresponding cross section in the drive shafts 2, 3, as shown in FIG. 2.

Anstelle eines Bolzens 10 kann auch ein profiliertes, insbe­sondere einen vierkantigen Querschnitt aufweisendes, Loch 11 am Ritzel 6 koaxial verlaufend vorgesehen sein, wie dies die Fig. 4 zeigt. In diesem Falle sind die Antriebswellen 2, 3 mit koaxial verlaufenden einseitig angeordneten profilierten Bolzen 8 versehen, wie dies die Fig. 2 zeigt.Instead of a bolt 10, a profiled hole 11, in particular a square cross section, on the pinion 6 can also be provided, as shown in FIG. 4. In this case, the drive shafts 2, 3 are provided with coaxial profiled bolts 8 arranged on one side, as shown in FIG. 2.

Claims (7)

1. Elektromechanische Schaltuhr mit austauschbaren Schalt­scheiben, die einzeln, insbesondere mit einem Tages- oder mit einem Wochenprogramm, programmierbar sind und dement­sprechend mit zueinander unterschiedlicher Drehzahl umlaufen, mit einem zeitgesteuerten Antrieb für die jeweilige Schalt­scheibe, der mit einer Antriebswelle mit einem einseitig an­geordneten Ritzel durch die Getriebeplatine hinter der Schalt­scheibe hindurchgreift und mit einem Zahnkranz an der jewei­ligen Schaltscheibe in Eingriff kommt, dadurch ge­kennzeichnet, daß für jede der vorgesehenen, mit einer bestimmten Drehzahl umlaufenden, Schaltscheiben (5) eine, mit der entsprechenden Drehzahl umlaufende, Antriebs­welle (2, 3) vorgesehen ist, die zur Lagerachse (9) der Schaltscheiben (5) exzentrisch angeordnet sind.1.Electro-mechanical time switch with interchangeable switching disks, which can be programmed individually, in particular with a daily or weekly program, and accordingly rotate at different speeds, with a time-controlled drive for the respective switching disk, which has a drive shaft with a pinion arranged on one side the transmission board reaches behind the switching disc and engages with a toothed ring on the respective switching disc, characterized in that for each of the provided switching discs (5) rotating at a certain speed, a drive shaft (2, 3) rotating at the corresponding speed ) is provided, which are arranged eccentrically to the bearing axis (9) of the switching disks (5). 2. Schaltuhr nach Anspruch 1, dadurch gekennzeichnet, daß das Ritzel (6) lösbar auf den Antriebswellen (2, 3) angeord­net sind.2. Time switch according to claim 1, characterized in that the pinion (6) are arranged releasably on the drive shafts (2, 3). 3. Schaltuhr nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das Ritzel (6) lösbar auf den Antriebswellen (2, 3) auf­gesteckt ist.3. Timer according to claim 1 and 2, characterized in that the pinion (6) is detachably attached to the drive shafts (2, 3). 4. Schaltuhr nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Antriebswellen (2, 3) mit einem koaxial verlaufenden, profilierten Sackloch (7) zum verdrehungsgesicherten Einstek­ken, des, mit einem einseitig angeordneten und profilierten Bolzen (10) ausgestatteten, Ritzels (6), versehen sind.4. Time switch according to claim 1 to 3, characterized in that the drive shafts (2, 3) with a coaxial, profiled blind hole (7) for rotation-protected insertion, the, with a one-sided and profiled bolt (10) equipped pinion ( 6) are provided. 5. Schaltuhr nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Antriebswellen (2, 3) einseitig mit einem koaxial verlaufenden profilierten Bolzen (8) zum verdrehungsgesicher­ten Aufstecken des, mit einem koaxial verlaufenden profilier­ten Loches (11) ausgestatteten, Ritzels (6), versehen ist.5. Time switch according to claim 1 to 3, characterized in that the drive shafts (2, 3) on one side with a coaxial profiled bolt (8) for rotation-proof plugging of the, with a coaxial profiled hole (11) equipped pinion (6) , is provided. 6. Schaltuhr nach Anspruch 4 und 5, dadurch gekennzeichnet, daß das Sackloch (7) oder der Bolzen (8) mit einem vierkanti­gen Querschnitt versehen sind.6. Timer according to claim 4 and 5, characterized in that the blind hole (7) or the bolt (8) are provided with a square cross section. 7. Schaltuhr nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß die stirnseitigen Enden (15) der, durch die Getriebeplati­ne (1) hindurchgreifenden, Antriebswellen (2, 3), auf der der Schaltscheibe (5) benachbarten Seite der Getriebeplatine (1) mit der dortigen Oberfläche der Getriebeplatine (1) hinrei­chend flächeneben angeordnet sind.7. Time switch according to claim 1 to 6, characterized in that the front ends (15) of the, through the transmission board (1) engaging drive shafts (2, 3), on the switching disc (5) adjacent side of the transmission board (1) with the surface of the transmission board (1) there are arranged sufficiently flat.
EP19880112536 1987-08-17 1988-08-02 Electric switch clock with an exchangeable commutation disc Expired - Lifetime EP0304681B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8711178U DE8711178U1 (en) 1987-08-17 1987-08-17
DE8711178U 1987-08-17

Publications (3)

Publication Number Publication Date
EP0304681A2 true EP0304681A2 (en) 1989-03-01
EP0304681A3 EP0304681A3 (en) 1990-06-27
EP0304681B1 EP0304681B1 (en) 1992-06-10

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ID=6811153

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Application Number Title Priority Date Filing Date
EP19880112536 Expired - Lifetime EP0304681B1 (en) 1987-08-17 1988-08-02 Electric switch clock with an exchangeable commutation disc

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EP (1) EP0304681B1 (en)
DE (1) DE8711178U1 (en)
ES (1) ES2032909T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9319541U1 (en) * 1993-12-20 1994-02-24 Graesslin Kg Timer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384343A1 (en) * 1977-03-16 1978-10-13 Landis & Gyr Ag TIME SWITCH WITH INTERCHANGEABLE DAILY PROGRAM DISC AND WEEKLY PROGRAM DISC
GB2027998A (en) * 1978-08-12 1980-02-27 Schwenk Kg Theben Werk An electric time switch
EP0051262A1 (en) * 1980-11-05 1982-05-12 DIETER GRÄSSLIN Feinwerktechnik Programmable switch with plural ranges
EP0082286A1 (en) * 1981-12-09 1983-06-29 DIETER GRÄSSLIN Feinwerktechnik Multi-range switching device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384343A1 (en) * 1977-03-16 1978-10-13 Landis & Gyr Ag TIME SWITCH WITH INTERCHANGEABLE DAILY PROGRAM DISC AND WEEKLY PROGRAM DISC
GB2027998A (en) * 1978-08-12 1980-02-27 Schwenk Kg Theben Werk An electric time switch
EP0051262A1 (en) * 1980-11-05 1982-05-12 DIETER GRÄSSLIN Feinwerktechnik Programmable switch with plural ranges
EP0082286A1 (en) * 1981-12-09 1983-06-29 DIETER GRÄSSLIN Feinwerktechnik Multi-range switching device

Also Published As

Publication number Publication date
ES2032909T3 (en) 1993-03-01
EP0304681A3 (en) 1990-06-27
DE8711178U1 (en) 1987-09-24
EP0304681B1 (en) 1992-06-10

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