JPS6372016A - Heating cooker - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a heating cooking device, such as a microwave oven, in which the structure of the operation panel is improved.

(Prior Art) In general, a heating cooking apparatus such as a microwave oven having the configuration shown in FIG. 6 has been known. In FIG. 6, 1 is the case of the main body of the cooking device 3. A heating chamber is formed inside the case 1, and a heating section such as a magnetron (high frequency oscillator) and various electrical components for controlling the operation of the heating section are installed.

Further, a door 2 for opening and closing the front opening of the heating chamber is attached to the front surface of the case 1, and an operation panel 3 is disposed adjacent to the door 2. This operation panel 3 includes various operation keys 4 for controlling the operation of the heating section.
・A display unit 5, etc. are provided.

By the way, for example, when manufacturing a plurality of products with different cooking functions, etc., the number, arrangement, etc. of the operation keys 4 on the operation panel 3 change depending on the interpolation of the products. However, in the conventional configuration, each operation key 4 of the operation panel 3 and the display section 5, etc. were arranged on a single keyboard 6, so multiple models with different cooking functions etc. When manufacturing a product, there was a problem that a dedicated keyboard 6 was required as a starting point for the product. Therefore, the number of types of keyboards 6 on the operation panel 3 increases, resulting in a problem of increased costs.

(Problems to be Solved by the Invention) In the conventional configuration, when manufacturing multiple models of products with different cooking functions, etc., a dedicated keyboard 6 is required for each type of product. There is a problem in that the number of fJ types in the keyboard 6 of the operation panel 3 increases, resulting in high costs.

This invention was made in view of the above circumstances, and even when manufacturing multiple models with different cooking functions, the same keyboard can be used in common for each model, reducing costs. It is an object of the present invention to provide a heating cooking device that can achieve the desired results.

[Structure of the Invention] (Means for Solving the Problems) This invention has an operable button on the front of each operation key of the keyboard that can be pressed to suppress each operation key of the keyboard, and an operation button that cannot be operated by pressing each operation key of the keyboard. The operation prevention buttons are arranged so that they can be combined as appropriate.

(Function) In the part where the operable button is arranged in front of each operation key of the keyboard, when the operable button is pushed down, the operation key of the keyboard is suppressed,
In the area where the operation prevention button is placed on the front of each operation key of the keyboard, the cooking functions etc. are different by preventing the keyboard operation keys from being pressed even if the operation prevention button is pressed and operated. Even if multiple models of products are manufactured, the same keyboard can be used in common for each model.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. Figure 1 shows the cooking method shown in Figure 2, for example in a microwave oven. An outline of the main parts of the i-position (three components are shown). In FIG. A heating section such as a magnetron (high frequency oscillator) and various electrical components for controlling the operation of this heating section are installed.Furthermore, a door 12 for opening and closing the front opening of the heating chamber is installed on the front of the case 11. In addition, an operation panel 13 is disposed adjacent to the door 12.

As shown in FIG. 3, the operation panel 13 is provided with a keyboard body 14 and a panel cover 15 fitted onto the keyboard body 14. Further, the keyboard body 14 is equipped with a display section 16 formed by a plurality of light emitting diodes, and various operations such as a function selection key part 17 such as a time key and an output key, and a numerical key part 18, etc. One key... is formed.

In this case, the keyboard body 14 is formed of an insulating film 2 made of synthetic resin material, for example, as shown in FIG.
0.21.22 is formed into a three-layered structure. Further, the intermediate insulating film 21 of the keyboard body 14 has openings 23 at portions corresponding to various operation keys 19 such as the faculty selection key part 17 and the numerical key part 18. While each is formed,
Insulating films 20 on both sides of this insulating film 21.
22 has an opening 23 of the intermediate insulating film 21...
Each operation key 19 is arranged in a spaced-apart manner and facing each other.
・The conductor 24Q... which forms the key contact 24...

24b... are arranged to form a key matrix circuit. Then, by pressing the insulating film 20 on the front side of each operation key 19, the conductor 24a of the insulating film 20 on the front side comes into contact with the four bodies 24b of the insulating film 22 on the back side, and each operation key One key contact 24 is made conductive. Also,
The panel cover 15 has a display section 16 of the keyboard body 14.
, the first function selection key part 17 and the numerical key part 18 correspond to the first part. Second. Third frontage portions 25, 26° 27 are formed, respectively. Then, the display section 1 of the keyboard body 14 is inserted through the first frontage section 25 of the panel cover 15.
6 is exposed to the outside, and the panel cover 1
The number (direct key part 18) of the keyboard body 14 is exposed to the outside through the third opening 27 of the keyboard body 14.

On the other hand, a transmission member 28 is interposed between the panel cover 15 and the keyboard body 14 at a portion of the keyboard body 14 corresponding to the function selection key part 17. As shown in FIG. 3, this transmission member 28 is formed with an outer frame 29 having a substantially rectangular frame shape. Further, on the inside of this outer frame 29, a movable plate 3 is provided at a portion corresponding to each operation key 19 of the function selection key part 17 on the keyboard body 14.
0... are arranged respectively. These movable plates 30... are each connected to the outer frame 29 via leg portions 31...

Further, on the front surface of the transmission member 28, there is an operable button 3 that can be operated by pressing each operation key 19 of the keyboard body 14.
2 and each operation key 19 of the keyboard body 14 are arranged such that they can be combined as appropriate. In this case, the operable button 32 has a protrusion 32b formed inside the button body 32a. This protruding portion 32b is connected to the movable plate 3 of the transmission member 28.
0 by means such as adhesive, and the protruding portion 32b of the operable button 32 is held in contact with the movable plate 30 of the transmission member 28. Further, the operation prevention button 33 has support legs 33b formed inside the button body 33a.

This support leg portion 33b extends toward the keyboard main body 14 side through the gap portion of the transmission member 28.
The tip of the keyboard 3b is fixed to the keyboard body 14 by means of adhesive or the like.

When the operable button 32 is pressed with a finger or the like, the movable plate 30 of the transmission member 28 is pressed by the protrusion 32b of the operable button 32,
Furthermore, the insulating film 20 on the front side of the operation key 19 is pressed through the movable plate 30 to contact the conductor 24 aIIr of the insulating film 20 on the front side and the conductor 24 b of the insulating film 22 on the back side. While making the key contact 24 of the key 19 conductive, the operation prevention button 33
When pressed with a finger or the like, this pressing force is prevented from being transmitted to the movable plate 30 of the transmission member 28, thereby preventing the key contacts 24 of the operation key 19 from being electrically connected. Further, when the operable button 32 is pressed with a finger or the like and then the finger or the like is released from the operable button 32, the movable plate 30 is returned to a predetermined position by the spring force of the leg portion 31 of the transmission member 28. ing.

Further, a control printed circuit board 34 is disposed inside the keyboard body 14. This printed circuit board 34 includes a display section 16 of the keyboard main body 14 and an opening selection button 1.
7, numerical key part 18, etc. are connected to each other via lead wires 35, respectively. Note that 36 is a door opening button provided at the lower end of the operation panel 13.

Therefore, in the case of the above configuration, the keyboard body 14
On the front side of the function selection key part 17, there are operable buttons 32 that can be operated by pressing the operation keys 19 of the keyboard body 14, and the operation keys 19 of the keyboard body 14.
Since the operation prevention buttons 33 that cannot be pressed are arranged so that they can be combined as appropriate, the arrangement of the single function selection key on the keyboard body 14 and each operation key 19 on the part 17 remains unchanged. By changing the combination of the operable button 32 and the operation prevention button 33 on the front side of the function selection key part 17 of the keyboard body 14, for example, as shown in FIG. The operable button 32 and the operation prevention button 33 are arranged in appropriate combinations on the side so that some of the operation keys (the operation prevention button 33 and each operation key 19 of the function selection key part 17 of the keyboard body 14 The function selection keys of the keyboard body 14 can be operated by preventing the operation of the operation keys 19a located in the corresponding parts, or by arranging only the operable buttons 32 on the front of the transmission member 28 as shown in FIG. The operation keys 19 of the section 17 can be easily changed to a state in which all the operation keys 19 are held in an operable state.

Therefore, even if multiple models of products with different cooking filtration capacities etc. are manufactured, the same keyboard body 14 can be used for each 11
Since the keyboard body can be used in common, 140 types of keyboard bodies can be reduced compared to the conventional keyboard body, and costs can be reduced.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[Effects of the Invention] According to this invention, an operable button that can be operated by pressing each operation key on the keyboard and an operation prevention button that cannot be operated by pressing each operation key on the keyboard can be appropriately combined on the front of each operation key on the keyboard. Because the keyboard is located in
Cost reduction can be achieved.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention,
Figure 1 is a cross-sectional perspective view of the main parts, Figure 2 is a perspective view showing the overall appearance of the microwave oven, Figure 3 is an exploded perspective view of the main parts, and Figures 4 and 5 are different layouts of operation buttons. FIG. 6 is a front view showing the installed state, and FIG. 6 is a perspective view showing the overall appearance of the conventional microwave oven. 13...Operation panel, 14...Keyboard body, 1
9.19a...operation key, 32...operable button, 33...operation prevention button. Applicant's Representative Patent Attorney Takehiko Suzue Figure 1 Figure 2 Figure 5 Figure 4 Figure 6

Claims (1)

[Claims] In a heating cooking device in which a keyboard with various operation keys is arranged on the operation panel of the heating cooking device main body, an operable button that can be operated by pressing each operation key of the keyboard on the front of each operation key of the keyboard; and A heating cooking device characterized in that operation prevention buttons that cannot be operated by pressing each operation key of the keyboard are arranged in appropriate combinations.