JPS5818027A - Food heating system - Google Patents

Abstract

PURPOSE:To operate a control circuit normally by a method wherein a switch set is provided with a key, detecting the existence of a card in a card holder, and an automatic take-in key, taking-in the information of the card into the control circuit in accordance with the pushing operation of the card holder. CONSTITUTION:A select key group 2, for selecting properly single or a plurality of combined functions among a plurality of heating functions as well as a heating time and a heating temperature, and a switch set 5, consisting of a switch group cooperating with the key group 2, are provided so that they are operated properly by the existence of a punched hole provided in accordance with the kind of aooking, upon the pushing operation of a punch card 1 loaded within a card holder 3. The switch set 5 is provided with card detecting keys 2-C1, 2-C2 for detecting the existence of the card 1 in the holder 3 and the automatic take- in keys 2-S1, 2-S2 for taking the information into the card 1, in order to operate the control circuit normally.

Description

[Detailed description of the invention] The present invention relates to improvements in food heating devices.

High-frequency heating devices such as microwave ovens are becoming increasingly complex in recent years due to demands for expanding the cooking repertoire and effectively utilizing space. That is, in addition to a high-frequency heating function, a complex food heating device has become a device that incorporates an open function, a grill function, a steam function, etc. into one device.

In addition to being able to use these functions independently, such complex food heating devices can shorten heating time and save energy by using high-frequency heating and grilling functions simultaneously or alternately. It has characteristics.

However, if it is possible to use several types of functions individually or in combination, operations such as selection and setting of heating functions become more complicated than before, and it becomes difficult to associate heating functions with objects to be heated. Therefore, there is a danger that the user may become confused and believe that the user-friendliness may be worse.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a food heating device in which the keys are manually operated using a punched card, in which many functions are combined into one device, yet it is simple and convenient. Our goal is to provide a device that maintains easy operability and is free from erroneous operation.

In order to achieve the above object, the present invention provides a set of select keys and a set of switches for appropriately selecting a single function or a combination of functions from a plurality of heat additions, and also selecting a heating time and a heating temperature as appropriate. When the card loaded in the card holder is pressed, the switches are operated depending on the presence or absence of the perforations provided depending on the type of cooking. A card detection key that detects the presence or absence of a card, and an automatic import key that imports card information into the control circuit are installed. At the same time, after the select key operation is completed, the control circuit is instructed that all card operations have been completed, so that the control circuit operates normally.

Note that checking the suitability of the select key operated by the card at the time of or accompanying the card holder's suppression operation means that it is relatively easy to check the suitability of the select key operated by the card by using a microconbeater, etc., such as checking from the top of the number or the top of the position. Since it is easy to perform, even when performing this type of checking operation, it is useful because the above-mentioned card presence/absence detection key and automatic import key can be provided and the timing can be set each time.

An embodiment of the present invention will be described below.

In the figure, 1 is a cooking card that records cooking heating information by a combination of the number and position of perforations.It is a sheet-like card made by laminating synthetic paper or plain paper on a hard vinyl chloride sheet. As shown in Figure 3, two rows of holes are drilled at the top of the card. These holes are located at positions facing each of the select keys 2 provided on the main body side when the card 1 is loaded into the card holder 3.
The holes may or may not be drilled depending on whether or not the suppression operation is necessary. Among the holes provided in two rows above and below, the upper large size 1-1 is for selecting heating functions such as high frequency heating, grill heating, open heating, etc. and setting the heating temperature, while the lower large size 1-1 2 is for setting the heating time. 1-3 is the color division divided by food group. 1-4 is the display column for the name of the dish. 1-5 is the column for the photo of the dish. 1-6 is the display column for the heating time. The amount of food is displayed using marks and quantities, such as how many servings and how many pieces. 1-63 is a temperature display column, and for dishes that require temperature display, the temperature is displayed in two columns.

At the bottom of card 1, there is a C cut 1-7 in the corner.
Further, a notch 1-8 is formed in the center part, and an inclined part 3 is provided at a position corresponding to the T part of the card holder 3 shown in FIG.
-6 and the convex portion 3-7. Each of these structures is provided in order to make it impossible to load the card 1 upside down, to load anything other than an authorized card, and to make it impossible to operate the select key with such unauthorized cards.

On the back of the card, information regarding the cooking method, such as how to prepare the dish, containers, accessories, etc., are appropriately written (not shown).

The card holder 3 into which the card l is loaded is shown in Figures 1 and 2.
It has a structure as shown in Fig. 3, including a frame 3-1 made of opaque plastic material, a finder 3-2 made of transparent plastic material, and a handle 3 for pressing the card holder body against the cooking device body. -8. The back side of the frame 3-1 has a structure that allows the card 1 to be loaded and removed easily, 3-3 is a card loading guide structured on an inclined surface, and 3-4 is a hinge mounted at the back of the main body panel. The attachment part 4-1 to the device 4 is a hinge fulcrum, and the upper part of the finder 3-2 of the card holder 3 is a through hole part 3-5, and the manual select button 6 provided on the main body side is connected to the mounting part 4-1. The card is made operational in loading. The lower part of the card holder protrudes in an L-shape toward the main body and is fitted into the bottom of the frame 3-1.

At the top of the card holder 3, there are two rows of holes 1-1 for the card 1.
．． On the back side of the part corresponding to t-2, there is a recess a-(1, a
-to is formed so that when the card holder is pressed against the panel body, the heads of the two opposing select keys can escape into this recess. Reference numeral 5 denotes a switch set equipped with select key group 2 and switch group 1. This switch set 5 will be explained using Figs. 5 and 6. Fig. 5 is a front view of the switch set, and Fig. 6 is a front view of the switch set. Figure 5 77
) A cross-sectional view taken along the line A-A' The switch set consists of a total of 16 select keys 2 and a group of switches that are opened and closed according to the operation of each select key group 20, and each switch is printed. Attached to the board 5-1, the coil spring 5-ζ contact rubber 5-3. It consists of a key arm 5-5 that is integrated with the upper select key and has a hinge 5-4 at its end. As can be seen from FIG. 5, the key arms 5-5 on both the left and right sides are not provided with a select button 6 for manual operation, and are operated only by the card 1't or the card holder 3. It has become. 5-
6 is a casing, and 5-7 is a switch pedestal.

Select key group 2 is high frequency heating and open heating.

This function key is used to select a single function from grill heating or steam heating, or to select an appropriate combination of these, and in some cases, to set the heating temperature.
-11% 2-f2.2-13%2-f4, 2-f5 and time key 2-11.2-t for setting heating time
2.2-13.2-t4, 2-t5 and card holder 3
Card detection keys 2-(1, 2c2) that detect the presence or absence of card 1 during the suppression operation of
52, and parity keys 2-pl and 2- for preventing malfunction.
It is composed of p2 and b.

In this embodiment, the function keys 2-fl are for microphone 1-wave strong heating selection, 2-f2 is for microwave weak heating selection, and 2-f3 is for selecting microwave weak heating.
is for steam heating selection, 2-f4 is for grill heating selection,
2-f5 is for oven heating selection, and both of these operate integrally with the manual selection button. In addition, when open heating is selected by card 1, 2-f2
．． The built-in microcomputer is programmed so that the three keys 2-f3 and 2-f4 operate as 3-bit heating temperature setting keys. The card detection keys 2-01 and 2-02 are electrically connected in parallel, and the automatic capture keys 2-sl and 2-s2 are electrically connected in series. Even if the card holder is twisted and pressed, the above-mentioned card detection key 2-cl or 2-c
2 detects the presence or absence of a card, and unless automatic import keys 2-81 and 2-52 are connected in series, normal operation will not begin. Parity key 2-p
l and 2-p2 are when card 1 is played by a person,
It checks the number of select keys that operate and operates them appropriately to avoid malfunctions.The parts of the card holder that are opposite to the automatic addition keys 2-51 and 2-82 are the parts that are opposite to other select keys. On the contrary, it does not form a recess,
It is always operated when suppressing a card boulder. This structure also has the function of providing restoring force to the card holder 3.The coil spring 5--which operates the switch of the automatic import key--also has the role of providing restoring force to the card holder 3.
There is a dimension L (approximately 1 ttan) between 2 and its operating section.
There is a play area.

Next, to explain the protrusion height of each key, the automatic import keys 2-s-1 and 2-52 on both sides are the highest, followed by the card detection keys 2-cl and 2-c2, and the other keys. The height difference between them is set to approximately O,a. Regarding the operating force of the switch, card detection key 2-c1.

2-c2 is made lighter and the automatic capture key 2-51.2-s2 is made heavier, and the operation order of the switches is determined by interaction with the difference in Φ-protrusion height mentioned above, and the card is placed first. Detection key 2=C operates, then function key 2-15
Time key 2-1, parity key 2-p%, and finally automatic capture key 2-5 are activated. All coil springs have the same specifications.

In addition, 7 is a control device with a built-in microcomputer;
8 is a display window that displays the selected heating function, heating time, etc., 9 is a cooking start button, 10 is a cooking lamp that displays the start of cooking, 11 is a button for re-selecting the heating function,
Cancel button used to stop cooking midway, 12
13 is a knob for adjusting the automatically set heating time, and 13 is a knob for adjusting the automatically set heating temperature.

Next, the operation when cooking using card 1 will be explained. The card used is a combination of high-frequency strong heating and grill heating. Insert the card 1 shown in Fig. 3 into the card holder 3, and
-8 is pressed, first the card detection keys 2-ct, 2-c2 are pressed.
are turned on at the same time or in sequence, and then the function keys 2-11% 2-f4 and the time key 2-, which are opposite to the portions of the card 10 hole portions 1-1 and 1-2 that do not have holes, are turned on. 12.2-
i3 turns on, and finally the automatic import key 2-s1.

2-52 turns on. In response to this, the control device 7 displays the heating function and heating time on the display window 8. Start button 9
When the button is pressed, the cooking lamp 10 lights up and the cooking process specified by the card 1 is started.

That is, after rapid heating is performed using strong microwave heating, the food is browned using strong grill heating over high heat, and cooking is completed after a predetermined period of time.

The above-mentioned automatic setting using the card is for a certain standard amount of the object to be heated, so when cooking other amounts, the adjustment knob 12 can be operated to adjust the amount. Further, this adjustment knob 12 is effective not only for adjusting the amount depending on the difference in amount but also for adjusting the finishing state according to preference.

Note that when the type of food changes and open heating is performed, the heating temperature will be automatically set, but in this case, it can also be adjusted depending on the amount of food to be heated, fluctuations in the wave source, etc., and the taste of the finished product. It can be adjusted using the knob.

When cooking is performed based on the information recorded on the card 1, when the card holder 3 loaded with the card 1 is pressed, the card detection key 2-C is activated and the control circuit 7 After the select key is operated according to the type of food, the automatic import key is operated to complete importing the information to the control circuit, so the card is placed in the card holder. The card information is not disturbed by the information of keys that were manually operated before the card holder is loaded and the card holder is pressed, and the same is true after the card holder is pressed. Furthermore, if the west control path is provided with a function to check for erroneous operation of the select key, that is, a parity check function, the timing of the check operation will be given, and an extremely significant effect in preventing erroneous operation can be obtained.

As described above, according to the present invention, when the information recorded by punching a punched card is to be taken into the control circuit, the operation of the card detection key puts the control circuit in a standby state for manual key operation using the card, and the selection key is automatically operated as appropriate. The operation of the capture key instructs the control circuit to capture the input from the select key and also determines the completion of manual key input, so the control circuit is not disturbed by information other than that recorded on the card. We were able to realize an easy-to-use food heating device that prevents the control circuit from malfunctioning due to key operations.

[Brief explanation of the drawing]

FIG. 1 is a front view of the operation panel of the food heating device according to the present invention, FIG. 2 is a sectional view of FIG. 1, FIG. 3 is a front view showing an example of a card, and FIG. 4 is a front view of a card holder. FIG. 5 is a front view of the switch assembly. FIG. 6 is a sectional view of FIG. 5. 1...Card 2-f...Card detection key 2-s
... Automatic intake key 5 ... Switch set 3 ... Card holder 7 ... Control device applicant Hitachi Thermal Appliances Co., Ltd. W, Figure 1 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] The switch set includes a group of select keys for selecting and setting one or more heating functions from among a plurality of heating functions, and a group of select keys for selecting and setting the heating time and heating temperature, and a group of switches that respond to the group of keys. is operated as appropriate by a suppression operation of a perforated card loaded in a card holder, and the switch set includes a key for detecting the presence of a card in the card holder and a key for detecting the presence of a card in the card holder, and a key that responds to the suppression operation of the card holder. A food heating device characterized by being provided with an automatic import key for importing card information into a control circuit.