EP0718726A2 - Interrupteur horaire électromécanique pour four - Google Patents

Interrupteur horaire électromécanique pour four Download PDF

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Publication number
EP0718726A2
EP0718726A2 EP95119088A EP95119088A EP0718726A2 EP 0718726 A2 EP0718726 A2 EP 0718726A2 EP 95119088 A EP95119088 A EP 95119088A EP 95119088 A EP95119088 A EP 95119088A EP 0718726 A2 EP0718726 A2 EP 0718726A2
Authority
EP
European Patent Office
Prior art keywords
time
cooking time
cooking
display
timer according
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
EP95119088A
Other languages
German (de)
English (en)
Other versions
EP0718726A3 (fr
EP0718726B1 (fr
Inventor
Erwin Potthof
Gerhard Meixner
Walter Spitzl
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.)
Diehl Stiftung and Co KG
Original Assignee
Diehl GmbH and Co
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 Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of EP0718726A2 publication Critical patent/EP0718726A2/fr
Publication of EP0718726A3 publication Critical patent/EP0718726A3/xx
Application granted granted Critical
Publication of EP0718726B1 publication Critical patent/EP0718726B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G15/00—Time-pieces comprising means to be operated at preselected times or after preselected time intervals
    • G04G15/006—Time-pieces comprising means to be operated at preselected times or after preselected time intervals for operating at a number of different times

Definitions

  • the invention relates to an electromechanical stove timer with a motor-driven analog display of the time and displays for cooking time and start of cooking time, with one or more function selection switches for the time, cooking time and start of cooking time and one or more actuation switches for setting the time and / or the function times and with one or several relays for switching the stove functions.
  • the display of the cooking time can be formed either by a digital display or by a one-hand analog display in the time field or outside.
  • the start of the cooking time can be indicated by two hands, preferably by the hands of the time.
  • the invention further provides in a preferred further development that the time can be set in a manner known per se by motor, that the electronic memory is provided for storing at least the beginning of the cooking time and the duration of the cooking, and that the setting of the beginning of the cooking time by motorized adjustment of the clock hands with simultaneous storage the time difference to the current time takes place in the electronic memory.
  • the special feature of the proposed stove timer is that both the adjustment of the analog time display, the mechanical cooking time start setting and the electronically stored cooking time as well as the electronic storage of the time difference between the current time and the cooking time start is carried out by the clock pulses output by the electronic control device.
  • the start of the cooking time is always set in the currently described embodiment, it is equally possible in the sense of the invention to set the end of the cooking time.
  • the electronic control system subtracts the entered cooking time from the electronically stored time difference between the current time and the end of the cooking time. This automatically results in the start of the cooking time, which is then processed in the clock in the manner already described.
  • FIG. 1 the front of an analog electromechanical stove timer is shown with a dial 1, two clock hands 2 and 3 rotating in the usual way, an additional digital display 4 with three digits and a function selection switch designed as a multi-function switch 5, which by turning from the so-called manual position "I “into a function position” clock ", into a position cooking time start” KB “, into a position cooking time” D “and into a position short time” KZ "can be rotated. By pressing this switch, the displays can be adjusted in the selected function position. The adjustment takes place as long as the switch is pressed by electrical pulses from the built-in electronic control device.
  • the arrangement of the digital display and the function selection switch can of course also take place elsewhere on the front of the watch than shown in the drawing.
  • function selection switch 5 it is also possible to provide a plurality of function keys and to assign the setting function to such a key or to provide a central actuation switch for all functions. In the sense of the invention, however, this configuration of the functional elements is not important.
  • FIG 2 the front of an electromechanical stove timer is shown in a second embodiment of the invention with a first dial 11, a second dial 12, usual time hands 13 and 14, a further pointer 15 for setting the cooking time and a function selection switch 16 with basically the same structure as in Figure 1.
  • FIG. 3 the basic structure of the stove timer is shown in a block diagram.
  • a key decoder 21, a function decoding 22 and an electronic control device 23 are arranged on a printed circuit board 20.
  • This contains, preferably in a microprocessor, an electronic memory 23a for storing the cooking time and an electronic memory 23b for storing the difference time when entering a cooking time start.
  • a plurality of buttons 24 are schematically arranged, via which the functions and the adjustment signals are entered.
  • the mains power supply is connected to a terminal 25.
  • a stepper motor 26 for adjusting the time hands and a relay 27 for switching the stove functions, preferably heating and possibly pyrolysis, are provided.
  • 28 denotes a digital display with three digits, which is preferably implemented with LEDs. Instead of three digits, a representation with only 21 ⁇ 2 digits would also be possible in the sense of the invention, provided that the clock should not display longer times for cooking time, pyrolysis or short time than 199 minutes.
  • 21a shows a DCF 77 receiver for receiving the radio time signal. The clock can optionally be equipped with it so that the time is set automatically. 21a acts on the control unit 23 via the function decoder 22.
  • an analog display with a pointer 15, as shown in FIG. 2, can also be provided.
  • the motorized adjustment of this pointer 15 is controlled with pulses.
  • a second drive motor is preferably provided for this second pointer 15, but in the sense of the invention it would also be possible to use the stepper motor for the time display with the interposition of a gear also for the adjustment of this pointer.
  • the pointer 15 has a position 0 and a position I.
  • the position 0 is the normal position from which the pointer is adjusted when the cooking time is adjusted. When the cooking time has elapsed, it returns to this position 0. He actuates a signal contact, not shown in the drawing, which defines this position. If the function selector switch is set to position I, that is to say the "manual" position, the pointer 15 is moved to the left by the drive motor into position I and thus visually indicates manual operation.
  • This watch works as follows. The time is first set by turning the function selector switch 5 to the "clock” position and then pressing it.
  • the electronic control device 23 emits impulses to the motor 26, which gradually adjusts the clock hands, initially slowly, after 10 steps at a significantly increased speed. As soon as the current time has been reached, the function selector switch 5 is released, the adjustment of the clock hands has ended, these now continue to run at a time-keeping speed.
  • the function selector switch 5 is set to the "I" position. This is the position for "manual" operation.
  • the function selector switch 5 is set to the "D" position. In this position, the desired cooking time can be entered into the memory 23a by pressing the function selector switch and indicated on the display 4. In this case, the cooking or baking process takes place immediately, ie more precisely, after about four seconds after the end of the input of the cooking time. You can recognize this from your pulse diagram in Figure 4. One speaks in such a case also of an immediate operation of the stove timer. From the electronic control device 23, pulses are output to the memory 23a, which count it down until the counter reading "0" is reached.
  • a buzzer (not shown) sounds with an intermittent tone that starts The relay that is switched on during the cooking process for heating the cooker is opened again and the energy supply for the hot plates or the oven is ended.
  • the digits "00" appear on the display 4. If the function selector switch 5 is now reset to the "I" position, the clock is again in manual mode and the display 4 goes out.
  • a cooking time and then a cooking start time can be entered first by setting the function selector switch 5 accordingly or vice versa.
  • the function selector switch must first be switched to one position and then to the other position and the display must be adjusted in the desired manner by pressing the button.
  • a cooking time is to be entered first, this process takes place in the same way as described with reference to FIG. 4.
  • the function selector switch 5 is then set to the "KB" position and the time hands 2 and 3 are set to the desired cooking start time later by pressing the switch. For example, this may be two hours later than the current time shown in FIG. 1 at 9 a.m.
  • the time hands are adjusted, first slowly, then quickly, as long as the function selector switch 5 is pressed. When the hand is at 11 o'clock this switch must be released. The time hands remain in this position until the current time has reached the start of the cooking time.
  • the adjustment pulses are not only given to the motor 26, but also to an electronic memory 23b in the electronic control device 23, which assumes a memory status of 120, corresponding to a difference of 120 minutes.
  • This memory is counted down by the electronic control device every minute - starting with the entry of the cooking start time - until it has reached the counter reading "0".
  • the electronic control device 23 again sends pulses to the motor 26 for the time-keeping, normal adjustment of the clock hands 2 and 3.
  • the electronic control device controls the memory 23a and counts down its content, also every minute, and thus "cooks" the cooking time. This decrease in cooking time can be read off the display 4.
  • the relay 27 which was initially closed and then opened again when the start of the cooking start time was entered, is closed again and now begins to supply the stove with energy.
  • a buzzer sounds again.
  • FIG. 6 shows a pulse diagram which explains the function of the stove timer when entering the start of the cooking time and then the cooking time.
  • a pyrolysis function can also be provided.
  • the pyrolysis time is entered, saved and displayed in the same way as for a cooking time.
  • the only difference is that when the function selector switch 5 of the cooker is set to the pyrolysis position, a time suggestion of, for example, 90 minutes appears in the display 4 for this function, but this can be corrected by the user.
  • the cooker function selector acts on the key decoder 21.
  • the electronic memory 23a is dimensioned sufficiently to be able to correspondingly store successive inputs, for example cooking time, short time and pyrolysis.
  • the memory content is processed by selecting the function selector switch 5 accordingly.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
  • Electric Ovens (AREA)
EP95119088A 1994-12-23 1995-12-05 Interrupteur horaire électromécanique pour four Expired - Lifetime EP0718726B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4446236A DE4446236C2 (de) 1994-12-23 1994-12-23 Elektromechanische Herdschaltuhr
DE4446236 1994-12-23

Publications (3)

Publication Number Publication Date
EP0718726A2 true EP0718726A2 (fr) 1996-06-26
EP0718726A3 EP0718726A3 (fr) 1996-07-31
EP0718726B1 EP0718726B1 (fr) 1998-08-05

Family

ID=6536873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95119088A Expired - Lifetime EP0718726B1 (fr) 1994-12-23 1995-12-05 Interrupteur horaire électromécanique pour four

Country Status (5)

Country Link
EP (1) EP0718726B1 (fr)
AU (1) AU691368B2 (fr)
DE (2) DE4446236C2 (fr)
ES (1) ES2121281T3 (fr)
NO (1) NO954910L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMC20090183A1 (it) * 2009-08-07 2011-02-08 Ers Societa A Responsabilita Li Mitata Orologio a lancette, per elettrodomestico, in particolare per forno.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1950615A1 (de) 1969-10-08 1971-04-22 Rich Walter Dipl Ing Schaltuhr zum automatischen Ein- und Ausschalten von Elektrogeraeten

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1908042A1 (de) * 1969-02-18 1970-09-03 Kieninger & Obergfell Elektrische Schaltuhr zum Begrenzen von Verfahrensschritten
DE2937382A1 (de) * 1979-09-15 1981-04-02 Buderus Ag, 6330 Wetzlar Schaltstellungsanzeige-vorrichtung fuer einen elektroherd
US4459031A (en) * 1980-10-14 1984-07-10 Eta A.G. Ebauches-Fabrik Electronic timepiece
JPS6027885A (ja) * 1983-07-26 1985-02-12 Citizen Watch Co Ltd 多機能アナログ時計
CH653848GA3 (fr) * 1983-10-25 1986-01-31
GB2149153B (en) * 1983-11-04 1986-11-12 Schlumberger Electronics Electronic timeswitch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1950615A1 (de) 1969-10-08 1971-04-22 Rich Walter Dipl Ing Schaltuhr zum automatischen Ein- und Ausschalten von Elektrogeraeten

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMC20090183A1 (it) * 2009-08-07 2011-02-08 Ers Societa A Responsabilita Li Mitata Orologio a lancette, per elettrodomestico, in particolare per forno.
EP2282241A3 (fr) * 2009-08-07 2011-03-23 Ers-Societa' A Responsabilita' Limitata Montre à aiguilles pour appareil domotique, en particulier pour un four
EP2477081A2 (fr) 2009-08-07 2012-07-18 Ers-Societa' A Responsabilita' Limitata Horloge analogique pour appareil domestique, en particulier un four
EP2477081A3 (fr) * 2009-08-07 2012-11-21 Ers-Societa' A Responsabilita' Limitata Horloge analogique pour appareil domestique, en particulier un four

Also Published As

Publication number Publication date
DE4446236A1 (de) 1996-07-11
NO954910D0 (no) 1995-12-04
ES2121281T3 (es) 1998-11-16
AU691368B2 (en) 1998-05-14
EP0718726A3 (fr) 1996-07-31
AU4022895A (en) 1996-07-04
DE59503066D1 (de) 1998-09-10
EP0718726B1 (fr) 1998-08-05
DE4446236C2 (de) 1999-06-17
NO954910L (no) 1996-06-24

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