DE2405974A1 - CONTROL DEVICE FOR ROASTING, BAKING OR DGL. - Google Patents

Description

24Q5974

Licentia
Patent-Verwaltungs-GmbH
Frankfurt / Main

EBHZ - 75/135 February 6, 1974

Ku / hn

Control device for roasting, baking or the like.

The invention "relates to a control device for roasting, Baking or the like, in particular for the automatic roasting of meat, taking into account its weight and / or Kind in an electric roasting and oven, using an adjustable one, the heating circuit according to the set temperature (food temperature) controlling temperature controller and a second temperature controller for Control of the searing temperature above the roasting temperature.

There is a stove with a temperature selector switch known at with the help of an additional timer, which can be switched on by pressing a button in the control circuit of the cooker, Cooking and roasting processes are semi or fully automatic

509834/0376

EBHZ - 73/155 6.2.1974-

Ku / hn

can be controlled. For this purpose, the timer has a 12-hour automatic switch-on and switch-off function for the heating equipped. With the help of this timer and the associated automatic switch-on and switch-off, it is possible, on the one hand, that after a manually preset cooking or roasting time has elapsed, the heating is switched off automatically via the timer. On the other hand, it is also possible to have a dish completely automatically during the absence of the operator to cook. In this case, the time switch takes over both switching on and switching on after the appropriate presetting switching off the heating after the pre-set cooking or roasting time has elapsed. But it is not with this timer possible, in addition to the processes shown, a roasting process while taking into account the respective Control the weight and type of meat to be fried.

From DT-AS 1 565 816 a control device is in particular known for long-term cooking in electric roasting and baking ovens. This control device has a conventional temperature selector switch To control the oven heating, two temperature switches, one of which is set to over 200 ° lying temperature (pre-cooking temperature) and the other on a temperature below 100 ° 0 (post-cooking temperature) is fixed. Furthermore, this known control device has a conventional timer for automatic Control of the heating in normal operation as well as an additional Time switch that activates the control for long-term cooking after switching on via a setting element. Included this control device also controls the after-cooking temperature If the temperature switch is permanently set to a certain temperature value, it is not possible here differently

509834/0376

EBHZ - 73/133 ' 6.2.1974

Ku / hn

large "or heavy pieces of meat in the ready-to-roast or Efachbratphase also with different high or low To finish cooking temperatures and to vary the after-roasting time accordingly. Furthermore, this control device is Relatively expensive and complicated in structure, which makes their production more expensive.

The invention is based on the object of further operating a control device of the type mentioned at the beginning to simplify as well as reduce the cost of switches and the existing timer also in the control process for the automatic roasting of meat of different sizes and types.

The object set is achieved according to the invention in that the second temperature regulator is set to the searing temperature is permanently set and this temperature controller parallel to the one that can be set to different cooking temperatures first temperature controller is placed and this temperature controller forms a series circuit with a timer and the two temperature regulators connected in parallel, a time-controlled switch for controlling a constant Searing phase is connected upstream and the control unit formed in this way is assigned a further changeover switch is, which in the usual roasting operation via the adjustable temperature controller, the electrical circuit for heating of the roasting and baking oven and the time-controlled switch when switching to automatic roasting switches on in the heating circuit.

This measure is advantageous in a single

5 09834/0376

EBBZ- 75 / J35 6.2.197%

Säa / bm

facb. Steroereinriclatiäimg ziam to use. Stone the brat The process of being swept up, ax; which both under Itagetemg and ancb With a ZiusclialifcOünig bucket that is already available for herds Timer on. "woUkoeaiem amtanatiscb. gaisg exxeicli.1t wixd ..

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You in the · S ¹ Ig. H shown Scbaltabr D föbr a stove consists ⁱ vorziigsweise mss a fageszeitsslir old built-2 Äbscbaltastomatüc and ¥ o3nfaM.aatomatik: for controlling the Bebeiznng of the hearth. Hit times of the abbreviation tone can be set £ ocb— and roasting times to the band. The heating is then switched off automatically after the set Xocb or roasting time. The setting of the previous £ ocb- or roasting time is carried out with a control knob 3- I & t the help of the Yorwablaatomatik is given the Köglictüfceit, an ^ experienced in the absence of the operator to cook. The switch sets the heating for the cooking plates, the roasting oven or both at the same time automatically when the side is switched on

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EBHZ - 75/133 6.2.1974-

Ku / hn

also switches the heating off again automatically after the preselected cooking or roasting time has elapsed. The setting the required cooking or roasting time takes place again with the aforementioned adjusting knob 3. By turning one Another setting button 4- is a dial 5 on the start of the cooking time posed. The timer will now switch on the heating at the set cooking time start and afterwards After the roasting time set with the setting knob 3, switch off the heating automatically.

This per se known timer for stoves is now designed so that, in addition to the process sequences described above, it can also be used to carry out a process for the automatic roasting of meat, taking into account its respective weight and / or type. For this purpose, the timer 1 is assigned a temperature control device 6 ¹ , 6 ″ (I ¹ Ig. 2) which can be actuated by an adjusting knob 6 and controls the temperature in the roasting chamber of the stove. The timer 1 and the temperature control device together form a structural unit 6 of this temperature control device includes a display device 8 provided with different temperature ranges, on which the temperature to be selected for a certain type of meat for the roasting process can be displayed with the aid of the adjusting knob 6 by appropriately adjusting a pointer 8 ^1. Above the display device 8 are for the Different types of meat, namely for veal, pork and beef symbols 7 provided, to which the appropriate frying temperature for the respective type of meat is given in degrees Celsius, to which the temperature control device for the frying chamber must be set using the adjusting knob 6 and which correspond -

S0983A / 0376

EBHZ - 75/155 February 6, 1974

Ku / hn

The corresponding position of the pointer 8 ¹ is displayed. Furthermore, the timer 1 is assigned a display scale 9 with two subdivided display columns 10, 11, on which the respective total roasting time can be set by actuating the setting button 3 and can be displayed in the display columns 10, 11 ) shown display columns 10 and 11 are shown several weight and time units. In reality, however, it is the case that only the units to be selected appear in the area of the marking 15 provided in the display column 10. Between the left dial 5 and the right display scale 9 there is a display field 12 which shows the respective time of day.

In the switching arrangement shown in FIG. 2, 15 »15 'denotes two two-pole on-off switches that control the electrical supply line to the cooker. 1 with the timer already described, which is designed here as a synchronous time switch with drive motor 16, is referred to. In series with the time switch 1 is a switching contact 17 which can be actuated via a push button 18. By pressing the button 18, the roasting and oven of the range is electrically connected to the timer 1. 3 ^{1 designates} a changeover switch with contact 19 which, in position I (normal roasting mode), uses the adjustable temperature controller 6 'with contact 6 "to produce the circuit for heating 20 the roasting and baking oven Timer 1 (Fig. 1), the contact 19 of the switch 3 ^{1 is brought} to position II and thus to an automatically running roasting process (automatic roasting) taking into account the weight and / or type of meat to be roasted.

509834/0376

EBHZ - 73/155 6.2.197 *

Ext / Im

represents. By switching the contact 19 in the H position, a light indicator 21 is applied to voltage; which by Illumination of the display field 22 in the timer 1 (Ed. 1) the beginning and the end of the automatic roasting process indicates

Hit 23 is a temperature controller that is set to a fixed temperature of about 250 °, which is connected in parallel with the temperature controller 6 "with contact 6 *, which can be set to different cooking temperatures. In series with the temperature controller 6 * is a 3" timer "that is breaking contact 3 * placed above the control knob 3 set in the timer. 1 at this timer is the Gesamtbratdauer that fleiscb.-weight depends on the Relevant! set · the tent switch 3 ^m! dariberhinaus operated another with in legs the 3beuehtanzelge 21 lying Xontakt 24. If this contact is opened by the timer 3 ", the light display 21 must go out, thus also the display field 22 in the timer, which means" that the automatic roasting process has ended. Ben both connected in parallel Temperature controllers 6 * land. 23 is a time-controlled further switch 25 sit contact 26 upstream for controlling a constant searing phase of 60 minutes. After this period of time has elapsed, the switch 25 automatically switches from the searing phase to the searing phase, in which the temperatures in the roasting and oven are kept significantly lower than during the searing phase.

The operation and mode of operation of the Isescbxebenen facility for the automatic roasting of! Meat Outer Berück—

509834/0378

EBHZ - 75/155 February 6, 1974

Ku / hn

Checking its size and / or type is done as follows:

Assume that two kilograms of beef are to be roasted using the automatic roasting system described. First of all, the temperature regulator 6 '(roasting oven switch) is set to the required roasting temperature of 190 °, as the symbol for beef shows, with the right setting button 6, which is indicated by the corresponding position of the pointer 8'. The roasting area of the cooker is now regulated to this temperature during the roasting time and held until the constant finished roasting time begins. Next, by pressing the central adjusting button 3, the contact 19 of the changeover switch 3 'is brought into position II, as a result of which the illuminated display 21 is connected to voltage and the display fields 9, 11, 22 are illuminated. By turning the adjusting knob, the meat weight of two kilograms is set or made visible in the display column 11. The time switch 3 ″ is also set accordingly at the same time. The required total roasting time then appears in the display column 10 in the area of the marking 13, which is 180 minutes in the example mentioned. The contact 19 of the changeover switch 3 ¹ is in position II. The contact 26 of the The time-controlled switch 25 is in position I (searing phase). The temperature controller 23, which is set to a temperature value of around 250 °, is in the closed position. After a searing time of 60 minutes, which is always constant for each meat weight, the Time-controlled changeover switch 25 changes its contact 26 to position II (continued frying phase). The current for heating 20 of the roasting and baking oven now flows via the time switch 3 ″ and the connected

509834/0376

EBHZ - 75/155 »6.2.1974-

Ku / hn

adjustable temperature controller 6 ¹ . The variable port roasting time controlled by the timer 3 ″, which depends on the weight of the meat to be roasted, is 90 minutes in the present example. When this period expires, the timer 5 ″ interrupts the power supply to the heating 20. The heat generated in the roasting and oven is sufficient to finish cooking the roast. After another 30 minutes have elapsed (finish roasting time), the timer 3 ″ now opens the contact 24 in series with the illuminated display 21. When the illuminated display 21 goes out, the end of the roasting process is indicated in the display panel 22 of the timer 1.

It is also possible to pre-program the automatic roasting with timer 1. For this purpose, the pressure switch 18 pressed, whereby the lying in series with the timer 1 contact 17 is closed and the electrical Connection timer and roasting oven heating is established. By setting the start of frying using the 4-im adjusting knob Display panel 5 of the timer 1 enables the roast to be roasted during the absence of the operator is being cooked ,, The timer 1 switches off the heating 20 is automatically activated and switched off again automatically after the preselected roasting time has elapsed. The rest of the roasting process is the same as described above.

When roasting meat in the usual way, i.e. without using the automatic roasting function described, the heating current only flows via the adjustable temperature regulator 6 '(roasting oven regulator), the contact 19 of the changeover switch 3 'is in position I. By pressing the push button 18 can also with

509 8 3 4/0376

- ίο -

EBHZ - 73/153 February 6, 1974

Ku / hn

The timer 1 can be switched on for this simple roasting process, which then switches off the heating 20 takes over.

509834/0376

Claims (2)

EBHZ - 75/155 February 6, 1974 Ku / hn Claims V ^ Ij / control device for roasting, baking or the like, in particular for automatically roasting meat, taking into account its weight and / or type in an electric roasting and oven, using an adjustable heating circuit according to the set temperature (IPortbrattemperatur) controlling temperature regulator and a second temperature regulator for controlling the searing temperature above the roasting temperature, characterized in that the second temperature regulator (25) is permanently set to the roasting temperature and this temperature regulator (23) is parallel to the first temperature regulator (6 ¹ , which can be adjusted to different roasting temperatures) 6 ") is placed and this temperature ^{controller (6 f} , 6") forms a series circuit with a time switch (3 ") and a time-controlled switch (25) for controlling a constant searing phase is connected upstream of ^{the two temperature regulators (23, 6 1) connected in parallel} is and who is on this ^{A further changeover switch (3 1} ) is assigned to the control unit formed in a manner which, in normal roasting mode, uses the adjustable temperature controller (6 ¹ ) to create the circuit for heating (20) the roasting and baking oven and which, when switching to automatic roasting, the time-controlled changeover switch switches on in the heating circuit. 509834/0376 EBHZ - 75/155 6.2.1974- Ku / hn 2. Control device according to claim 1, characterized in that a light indicator (21) is connected in parallel to the time-controlled changeover switch (25) and a breaker contact (24-) controlled ^{by the timer (5 U) is placed in series with this light indicator.} 5. Control device according to claim 1, characterized in that that in position I (searing phase) by the time-controlled switch (25) for a constant Period of time a series connection of the heater (20) with the permanently set temperature controller (25) is established. 4-O control device according to claim 1, characterized in that that in position II (continued frying phase) by the time-controlled switch (25) for one from time period depending on the weight of the piece of meat to be cooked a series connection with the timer (5 "), Temperature controller (6 ', 6 ") and the heater (20) is made. 509834/0378