JPH0139017B2 - - 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, a complex food heating device has become a device that incorporates multiple heating functions such as an oven function, a grill function, and a steam function.

In addition to being able to use each function independently, such a composite food heating device can also use high-frequency heating and other functions simultaneously or alternately. Not only that, but it also has the characteristic that it can sometimes make the taste of the dish even better.

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. This has the drawback of confusing the user and making it extremely difficult to use.

Conventionally, for example, the main body of the cooker is equipped with a key arrangement that can be operated using a perforated card, and depending on the type of cooking, the appropriate keys are operated using the perforated card to select the heating function, set the heating time, etc. BACKGROUND ART Cooking devices that allow setting of heating temperature to be completed in one operation, simplifying the difficulty of operation, are becoming popular.

However, as the number of operated keys increases, depending on how the card holder is pressed, some keys may not be pressed sufficiently, and the cooker may start cooking without the above-mentioned insufficient key input. There was a danger of it being lost.

The present invention was made in view of the above circumstances, and
The purpose of this is to maintain simple operability and prevent erroneous operation even though many functions are combined into one device for food heating equipment that uses key input using punched cards. To provide food heating equipment.

In order to achieve the above object, the present invention provides a plurality of automatic import keys that respond to a pressing operation on a card holder loaded with a perforated card and provide timing for importing information on the perforated card into a control circuit. ,
By arranging these keys in a distributed manner, these automatic capture keys are operated after all of the operated keys mentioned above have been surely pressed, so that no one forgets to press a key. The timing for importing card information is given to the control circuit only when all of the plurality of automatic import keys are turned on.

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 determined by the select key 2 provided on the main body when the card 1 is loaded into the card holder 3.
The part facing each of the select key 2
Depending on whether or not the pressing operation is necessary, the hole may or may not be drilled. 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 here.

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 composed of 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 no card is loaded. The lower part of the card holder protrudes toward the main body in an L-shape, and the frame 3
It is fitted into the bottom of -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. Yes, 2-f1, 2-f2, 2
-f3, 2-f4, 2f-5 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 the card 1 when the card holder 3 is pressed, and the timing of importing the information of the card 1 into the control circuit. It is composed of automatic capture keys 2-s1 and 2-s2 that give the same value, 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. These automatic capture keys 2-s1 and 2-s2 are provided distributed on both sides of the switch set 5, and when these two keys are operated together, other operated keys sandwiched between them are securely operated. It was placed with the intention that it would look like it was being manipulated.

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. The part of the card holder that faces the automatic import keys 2-s1 and 2-s2 is
Contrary to the part facing the other select keys, no recess is formed, and the key 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 placed in this order, and the height difference between them is set to approximately 0.3 mm. Regarding the operating force of the switch, please refer to the card detection key 2-
Lightly press c1, 2-c2, automatic import key 2-s1,
The card detection key 2-s2 is made heavier, and the switch operations are ordered by interacting with the difference in key protrusion height mentioned above.
c operates, followed by function keys 2-f and time key 2.
-t, parity key 2-p, and finally the automatic capture key are activated. All coil springs have the same specifications.

Furthermore, even if the automatic import key is supposed to operate last, if the point of application of the operating force to the card holder is at the right or left end other than the push handle 3-8 at the center of the top, the predetermined number of select keys will be activated. It may be possible that one of the automatic import keys becomes operational before it is pressed, but even in such a case, the other automatic import key that remains will be turned on at the end. The timing for importing card information is given to the control circuit only when both automatic import keys are turned on. 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 indicates the start of cooking, 11 is a cancel button used when reselecting a heating function or stopping cooking midway through, and 12 is a heating time automatically set by a card. 13 is a knob for adjusting the automatically set heating temperature according to preference or variations in the quantity and quality of the food to be cooked.

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. , then hole part 1-1, 1 of card 1
Function keys 2-f1, 2-f4, time keys 2-t2, 2-t3 opposite to the non-perforated part of -2
turns ON, and finally the automatic import key 2-s1, 2-s
2 turns on. In response to this, the control device 7 displays the heating function and heating time on the display window 8. When the start button 9 is pressed, the cooking lamp 10 lights up, and cooking as instructed on the card 1 is performed. 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.

Since the above-mentioned automatic setting using the card is for a certain standard amount of the object to be heated, when cooking other amounts, the adjustment knob 12 can be operated to adjust the amount. Also, this adjustment knob 12
In addition to adjusting the quantity, it is also effective when 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, the heating temperature can be adjusted depending on the amount of food to be heated, fluctuations in initial temperature, etc., and the taste of the finished product. It can be adjusted using the knob.

In this embodiment, automatic import keys 2-s1 and 2-s2, which determine the timing of importing card information into the control circuit, are arranged at both ends of the key arrangement, and when these two keys are pressed, other keys are activated. Since the function keys, time keys, etc. are ensured to have been operated, heating is no longer started due to insufficient key input, or heating is no longer started unexpectedly.

In addition, the timing for importing card information into the control circuit is given only when both automatic import keys are turned on, so in the unlikely event that one automatic import key is turned on before all of the predetermined select keys are pressed.
Even if the device enters the ON state, the timing for data capture is not yet given, so there is no need to worry about erroneous key input.

As described above, according to the present invention, when information recorded by punching a punched card is imported into a control circuit, a plurality of automatic import keys are provided which give the timing, and these keys are arranged in a distributed manner to By the time all the keys have been operated, the other function keys, time keys, and other operated keys have already been operated, so all of the automatic capture keys are turned ON. Since the selection key input is not captured until the state is established, a reliable key input operation using a punched card without erroneous settings can be realized.

[Brief explanation of drawings]

FIG. 1 is a diagram showing 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 diagram showing an example of a card, and FIG. Figure 5 is a detailed diagram of the switch group, Figure 6
The figure 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 set consisting of a group of select keys for selecting and setting one or more heating functions from among multiple heating functions, and selecting and setting the heating time and heating temperature, and a group of switches that respond to these key groups. However, in the case where the switch group is operated as appropriate by a perforated card loaded in a card holder, the switch group is configured to control information on the perforated card in response to a pressing operation of the card holder. A plurality of automatic acquisition keys for inputting data into the circuit are provided, and these automatic acquisition keys are arranged to be distributed from each other, and these automatic acquisition keys are operated with a delay after the selection key is operated. All automatic import keys are
A food heating device characterized in that when the food heating device is turned on, a timing for taking in the food is given to the control circuit.