JPH0258536B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in food heating devices.

In recent years, high-frequency heating devices such as microwave ovens have become increasingly complex due to demands for expanding the cooking repertoire and effectively utilizing space. That is, in addition to a high-frequency heating function, the food heating apparatus has become a composite food heating device that incorporates an oven 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 the feature of being able to

However, if it is possible to use several types of functions individually or in combination, operations such as selecting and setting the heating function become more complicated than before, and it becomes difficult to associate the heating function with the object to be heated. Therefore, there is a danger that the user will be confused and may think that it is not easy to use.

The present invention was made in view of the above circumstances, and
The purpose of this is to create a food heating device that uses a punched card for key input, and that maintains simple operability even though many functions are combined into one device, and that does not allow for operational errors. Our goal is to provide the following.

In order to achieve the above object, the present invention appropriately selects a single function or a combination of a plurality of heating functions from among a plurality of heating functions, and selects a selection key group and a switch group for appropriately selecting a heating time and a heating temperature. A set of switches is provided, and these switch sets are operated appropriately depending on the presence or absence of perforations provided depending on the type of cooking when the card loaded in the card holder is pressed. A card detection key that detects the presence or absence of a card in the holder and an automatic import key that imports card information into the control circuit are provided to instruct the control circuit that key input is using the card. The card is placed in an accepting position, and after the select key operation is completed, an instruction is given to the control circuit that all card operations have been completed, so that the control circuit operates normally.

It should be noted that it is relatively easy to check the suitability of the select key operated by the card at the time of pressing the card holder or in conjunction with the operation using a microcomputer, 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 check 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 adjusted 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, and is a sheet-like card made by laminating synthetic paper or plain paper on a hard vinyl chloride sheet. As shown in FIG. 3, two rows of holes are provided at the top of the card. The positions of these holes are the parts facing each of the select keys 2 provided on the main body side when the card 1 is loaded into the card holder 3, and the holes are arranged depending on whether it is necessary to press the select keys 2 or not. In some cases, the holes are not drilled or have holes in them. Of the two rows of holes provided above and below, the upper row of holes 1-1 is for selecting heating functions such as high frequency heating, grill heating, oven heating, etc. and setting the heating temperature, while the lower row of holes is for setting the heating temperature. 1-2 is for setting the heating time. 1-3 is a color-coded section classified by food group, 1-4 is a display column for the name of the dish, 1-5 is a column for a photo of the dish, and 1-6 is a display column for the heating time and quantity of the dish. It is displayed with marks and quantities, such as how many servings and pieces. 1
-6a 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, make a C cut 1 in the corner.
-7, and a notch 1-8 is formed in the center, which faces the inclined part 3-6 and the convex part 3-7 provided at the lower part corresponding position of the card holder 3 shown in FIG. Each of these structures is provided to make it impossible to load the card 1 upside down, to load anything other than a regular card, and to make it impossible to operate the select key with such a non-regular card.

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

The card holder 3 into which the card 1 is loaded is shown in FIG.
It has a structure as shown in Figures 2 and 3, including a frame 3-1 made of opaque plastic material, a finder 3-2 made of transparent plastic material, and a pusher for pressing the card holder body against the cooking device body side. It is equipped with handles 3-8. The back side of frame 3-1 has a structure that allows card 1 to be easily loaded and unloaded.
3 is a card loading guide structured by an inclined surface;
3-4 is a mounting portion for the hinge device 4 mounted at the back of the main body panel, and 4-1 is a hinge fulcrum. The upper part of the finder 3-2 of the card holder 3 has a through hole 3-5, which allows a manual select button 6 provided on the main body side to be operated when loading a card. 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, recesses 3-9 and 3-10 are formed on the back side of the portion corresponding to the two-row holes 1-1 and 1-2 of the card 1, and the card holder is pressed against the panel body. At times, the heads of the two opposing select keys can escape into this recess. 5 is a switch group equipped with select key group 2 and switch group, and this switch group 5
When explained using Figures 5 and 6,
FIG. 5 is a front view of the switch assembly, and FIG. 6 is a sectional view taken along line A-A' in FIG. The switch group consists of a total of 16 select key groups 2 and a group of switches that are opened and closed according to the individual operations of the select key groups 2. Each of the switches is attached to a printed circuit board 5-1, and a coil spring 5 is attached to the switch group. -2,
Contact rubber 5-3, key arm 5- that is integrated with the upper select key and has a hinge 5-4 at the end.
It consists of 5. As can be seen from FIG. 5, the left and right key arms 5-5 are not provided with a select button 6 for manual operation, and are operated only by the card 1 or card holder 3. 5-6 is a casing, and 5-7 is a switch base.

Select key group 2 is a function key for selecting a single function or an appropriate combination of high-frequency heating, oven heating, grill heating, and steam heating, and in some cases, for setting the heating temperature. Some 2-f1, 2-f2, 2-
f3, 2-f4, 2-f5 and time keys 2-t1, 2-t2, 2-t for setting heating time
3, 2-t4, 2-t5, card detection keys 2-c1, 2-c2 that detect the presence or absence of card 1 when pressing the card holder 3, and instructions to read the information of card 1 into the control circuit. It is comprised of automatic capture keys 2-s1 and 2-s2 to perform automatic input, and parity keys 2-p1 and 2-p2 for preventing malfunction.

In this embodiment, the function keys 2-f1 are for selecting strong microwave heating, 2-f2 are for selecting weak microwave heating, 2-f3 are for selecting steam heating, 2-f4 are for selecting grill heating, and 2-f5 are for selecting grill heating. These are for oven heating selection, and both work together with the manual select button. In addition, when oven heating is selected by card 1, 2-f2, 2-f
The built-in microcomputer is programmed so that the three keys 3, 2-f4 operate as 3-bit heating temperature setting keys. The card detection keys 2-c1 and 2-c2 are electrically configured in parallel, and the automatic import keys 2-s1 and 2-c2 are electrically configured in parallel.
-s2 are electrically connected in series. Even if the card holder is twisted and pressed, either the card detection key 2-c1 or 2-c2 described above will detect the presence or absence of the card, and the automatic capture key 2-c2 will detect the presence or absence of the card.
Normal operation is not possible unless s1 and 2-s2 are connected in series. The parity keys 2-p1 and 2-p2 are used to check the number of select keys that operate when key input is performed using the card 1, and operate them appropriately to avoid malfunctions. Card holder automatic import key 2-s1
The portion facing 2-s2 does not form a recess, contrary to the portion facing other select keys, and is always operated when the card holder is pressed. This structure also serves to provide restoring force to the card holder 3. A play of dimension L (approximately 1 mm) is provided between the coil spring 5-2 for operating the switch of the automatic import key and its operating section.

Next, to explain the protrusion height of each key, the automatic import keys 2-s1 and 2-s2 on both sides are the highest, followed by the card detection keys 2-c1 and 2-c2,
The other keys are arranged in this order, and the height difference between them is set to about 0.3 mm. Regarding the operation force of the switch, please refer to the card detection key 2-c.
1,2-c2 lightly, automatic import key 2-s1,2
-s2 is made heavier, and the operation order of the switches is made by interacting with the difference in key protrusion height mentioned above, and the card detection key 2-c operates first, followed by the function key 2-f. , time key 2-t,
Parity key 2-p, and finally automatic import key 2-
s is now working. 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, and 10
1 is a cooking lamp that indicates the start of cooking; 11 is a cancel button used when reselecting a heating function or stopping cooking midway; 12 is a control knob for automatically set heating time; 13 is a similarly automatic setting button. This is a knob that adjusts the 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. When the card 1 shown in Fig. 3 is inserted into the card holder 3 and the push handle 3-8 on the top of the card holder is pressed, the card detection keys 2-c1 and 2-c2 are turned on either at the same time or in sequence. , followed by hole 1-1 of card 1,
Function keys 2-f1, 2-f4 and time keys 2-t2, 2 opposite to the part without holes in 1-2
-t3 turns on, and finally automatic import key 2-s1,
2-s2 turns on. In response to this, the control device 7 displays the heating function and heating time on the display window 8. When you press the start button 9, the cooking lamp 10 lights up.
Cooking is performed as instructed on card 1.

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. Also, this adjustment knob 12
This is effective not only for adjusting the amount depending on the amount, but also for adjusting the finished state according to your preference.

Note that when heating in the oven due to a change in the type of food, the heating temperature will be automatically set, but even in this case, it can be adjusted depending on the amount of food to be heated, fluctuations in temperature, and finish preference. 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 The card waits for key input, and after the select key is operated according to the type of food, the automatic import key is operated to complete the import of information into the control circuit. Card information is not disturbed by information on keys that were manually operated before loading the card holder and pressing the card holder, and the same is true after pressing the card holder. . Also,
If the control circuit 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 is given, which is extremely useful in preventing erroneous operations.

As described above, according to the present invention, when the information recorded by punching the punched card is to be taken into the control circuit, the control circuit is placed in a waiting state for key input by the card by the operation of the card detection key, and
Appropriate selection key operation The operation of the automatic capture key instructs the control circuit to capture the input by the select key and determines the completion of the key input, so the control circuit is not disturbed by key information other than that recorded on the card. We were able to realize an easy-to-use food heating device that prevents malfunctions of the control circuit due to key operations.

[Brief explanation of drawings]

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, and FIG. 6 is a sectional view of FIG. 5. 1...Card, 2-f...Card detection key, 2
-s...Automatic import key, 5...Switch group, 3...
...Card holder, 7...Control device.

Claims (1)

[Claims] 1. It has a switch group consisting of a group of select keys for selecting and setting one or more heating functions from a plurality of heating functions, and selecting and setting the heating time and heating temperature, and a group of switches that respond to these key groups, and In the case where the switch group is operated appropriately by pressing the perforated card loaded in the card holder, the switch group further includes the card holder when the card holder loaded with the perforated card is pressed. In addition to providing a card detection key that is pressed only by the perforated card inside the card to detect the presence of the card and cause the control circuit to take a position of waiting for the input of the select key, and a switch that responds to the key, an automatic capture key that captures information held on the punched card into the control circuit by the select key group and its switch group in response to a pressing operation of a card holder loaded with a punched card; A switch is provided that responds to the selection key group, the card detection key, and the automatic import key in the order of the card detection key, the select key group, and the automatic import key when the card holder loaded with the perforated card is pressed. A food heating device characterized by having an operable structure.