JP4913655B2 - Cooker display device - Google Patents

Description

  The present invention relates to a display device for cookers such as rice cookers, automatic bread machines, and electromagnetic cookers.

  Conventionally, as shown in FIG. 9, a display device for a rice cooker, which is an example of a cooker, is provided with a liquid crystal display unit and a plurality of mechanical key switches. A wide variety of displays are performed, and the number of key switches is increasing. Some of the displayed contents and key switches are not necessary at all for ordinary cooking. For this reason, there are too many displays and key switches, resulting in poor operability.

  Therefore, Patent Document 1 discloses a liquid crystal display element, key switches for time adjustment, rice cooking, heat retention, cancel, etc., and the front part of the liquid crystal display element displaying “0-9”, “hour” and “minute”. A transparent touch switch is provided. When the time setting key is pressed, “0-9”, “hour” and “minute” are displayed on the liquid crystal display element. When these display parts are pressed, the touch switch operates. A system has been proposed in which a reservation time is set.

  Patent Document 2 proposes a cooker in which a liquid crystal display unit is provided with a plurality of touch keys such as a dot matrix display unit, a segment display unit, and “rice cooking / reheating”.

Furthermore, Patent Document 3 proposes an electric rice cooker provided with an operation panel including a liquid crystal touch panel that switches between a multi-function display pattern and a single function display pattern.
Japanese Patent Laid-Open No. 1-115312 JP 2004-222936 A JP 2001-258724 A

  However, in any of the patent documents, since a touch switch is provided in the liquid crystal display unit, a space for providing a touch panel in the liquid crystal display unit is necessary, the liquid crystal display unit is enlarged, and the cost is high. There has been a problem that an erroneous operation is likely to occur due to confusion between the display unit and the touch switch.

  This invention is made | formed in view of this conventional problem, and makes it a subject to provide the display apparatus of a cooking appliance with few display contents and the number of keys, and being cheap and good operability.

In order to solve the above problems, the present invention is a display device for cookers provided with a display unit for performing the seeds display a function switch consisting machine械的switch is disposed in a location other than the front Symbol display unit Cooking a touch switch for selecting the required function, and a backlight provided on the back of the touch switch, when not in operation before the Symbol function switch hides the touch switch, and operates the function switch The backlight is turned on to raise the touch switch .
According to a first aspect of the present invention, the surface of the place where the touch switch is disposed is formed in a three-dimensional shape, and the touch switch mounting surface is formed of a cylindrical surface that approximates the three-dimensional shape of the surface on the back surface of the surface. And the touch switch is attached to the touch switch mounting surface.
According to a second aspect of the present invention, a surface of the place where the touch switch is disposed is formed in a three-dimensional shape, and a touch switch mounting surface including at least two or more planes is formed on the back surface of the surface. The touch switch is attached to the touch switch mounting surface.

According to the configuration of claims 1 and 2 , when the function switch is not operated, the touch switch is concealed, and when the function switch is operated, the backlight is turned on and the touch switch is raised, so that complicated switches cannot be seen, A clean appearance can be obtained and there is no misoperation. In addition, the pasting state between the touch switch and the cylindrical surface or the flat surface becomes perfect, and the electrode is less likely to be peeled off due to the heat history from preheating to heating, heat retention, and termination.

According to a third aspect of the present invention, a cooking switch composed of a mechanical switch that performs a minimum operation necessary for cooking can be provided separately from the function switch. When cooking is continued using the same menu or the like, the cooking switch is provided separately, so that cooking can be started by a simple operation using only the cooking switch without operating the function switch. Moreover, erroneous operation can be prevented by providing one independent switch called a function switch.

Further, as described in claim 4 , a cooking switch including a mechanical switch that performs a minimum operation necessary for cooking can be provided so as to be also used as the function switch. For example, the backlight can be turned on by pressing the function switch once, and the minimum operation required for cooking can be performed by pressing the button repeatedly or by pressing the function switch several times. The backlight can be turned on by a plurality of pressing operations, and a minimum operation required for cooking can be performed by a single pressing operation. Further, the backlight can be turned on by an operation of pressing the function switch once, and a minimum operation required for cooking can be performed by an operation of pressing the function switch once while the backlight is turned on.

When the cooking device is a rice cooker as described in claim 5 , the cooking switch including a mechanical switch that performs the minimum operation necessary for cooking includes at least a rice cooking switch and a cancel switch. preferable. Since the rice cooking switch and the cancel switch are not a touch switch but a mechanical switch, it is less likely that rice or cancellation is mistakenly performed by touching a cloth or a hand during maintenance or the like.

As described in claim 6, wherein the touch switch preferably functions when the function switch is operated. By doing in this way, when a user cares for or moves a cooker, a cloth and a hand do not touch and malfunction does not arise.

According to the present invention, in the display device of the cooker having a panel, the panel, the selection of a liquid crystal display unit that performs each species display, function switches and is disposed in a location other than the liquid crystal display unit necessary for cooking function The touch switch is equipped with a backlight provided behind the touch switch. When the function switch is not operated, the touch switch is concealed. When the function switch is operated, the backlight is turned on and the touch switch is raised. As a result, troublesome switches are not visible, a clean appearance is obtained, and there is an effect that erroneous operation is eliminated. Further, the surface of the place where the touch switch is disposed is formed in a three-dimensional shape, a cylindrical surface approximate to the back surface or a touch switch mounting surface composed of at least two or more planes is formed, and the touch switch is attached. Therefore, the electrode is difficult to peel off due to the heat history from preheating to heating, heat retention, and termination.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  Drawing 1 shows the state where the lid of rice cooker 2 provided with display 1 concerning the present invention was removed. The display device 1 of the rice cooker 2 is provided on the front side portion of the shoulder body 4 provided around the inner pot accommodating portion 3 of the rice cooker 2. As shown in FIG. 2, the display device 1 includes a liquid crystal display unit 5 having a liquid crystal display screen on a shoulder body 4, a function switch 6, a cancel switch 7, a rice cooking switch 8, and a backlight 9. A touch switch 11 is provided, and the panel 10 is attached to the shoulder body 4.

  The liquid crystal display unit 5 is provided at the center of the panel attached portion 4 a of the shoulder body 4. On the display screen of the liquid crystal display unit 5, display necessary for the operation of the rice cooker is performed by segment display and dot matrix display. As an example, as shown in FIG. 7A, the display screen displays a time display, “white rice” display, “rice cooking menu” display, “white rice rapid”, “rice cooked”, “sushimeshi”, “ Menu display of rice porridge, rice cake, brown rice, brown rice activity, low pressure and high pressure, hardness, normal, and rice cake hardness, 4 Stage pressure display.

  Returning to FIG. 2, the function switch 6 and the cancel switch 7 are tact switches, and are provided vertically on the shoulder 4 on the left side of the liquid crystal display unit 5. The rice cooking switch 8 is also a tact switch, and is disposed on the shoulder 4 on the right side of the liquid crystal display unit 5. These mechanical switches 6, 7, and 8 are the minimum switches necessary for cooking rice.

  The backlight 9 includes nine LEDs arranged in a row on the lower shoulder 4 of the liquid crystal display unit 5 and is located behind a touch switch 11 of the panel 10 described later.

  As shown in FIG. 3, the liquid crystal display unit 5, the function switch 6, the cancel switch 7, the rice cooking switch 8, and the backlight 9 are mounted on the display substrate 12 and attached to the shoulder body 4.

  The touch switch 11 is of the electrostatic capacitance type, and includes seven circular individual electrode portions 14 and a common electrode 15 surrounding the circumference on the film 13 as shown in FIG. It is detected that a finger has come into contact with the surface of the panel 10 corresponding to each individual electrode 14 due to a change in capacitance between the common electrodes 15. The touch switch 11 is attached to a touch switch mounting surface 18 (to be described later) of the panel 10 with a double-sided tape.

  The panel 10 is attached to the panel attachment portion 4a of the shoulder body 4, and includes a panel main body 16 made of a transparent resin and a film 17 integrally formed with the panel main body 16. The front and back surfaces of the panel body 16 are three-dimensional curved surfaces. As shown in FIG. 5, a part of the back surface, that is, a portion to which the touch switch 11 is attached is a touch switch mounting made of a cylindrical surface that approximates a three-dimensional curved surface. Surface 18 is formed. An opening 19 for accommodating the spacer 6a of the function switch 6 and the cancel switch 7 is formed at the left end of the panel 10, and similarly, the spacer 8a of the rice cooking switch 8 is accommodated at the right end of the panel 10. An opening 20 is formed.

  The film 17 is made of a transparent resin, and a window hole 21 is formed by punching in the center so that the liquid crystal display unit 5 can be seen. The first printed layer 23 of the same color as the rice cooker body 2 is provided on the back surface of the film 17 except for a circular portion 22a corresponding to the position of the function switch 6 and the cancel switch 7 and a circular portion 22b corresponding to the position of the rice cooker switch 8. And a black second print layer 24 is further provided on the first print layer 23 (the lower surface of the first print layer 23 in FIG. 4). The second printed layer 24 is stamped with letters / symbols of “warming selection”, “washless rice”, “rice cooking menu”, “health menu”, “▲”, “time adjustment”, “▼”, “reservation”. Is displayed. These letters and symbols correspond to the position of the common electrode 15 of the touch switch 11.

  Next, the assembly procedure of the display device 12 having the above configuration will be described. As described above, the panel body 16 and the film 17 are integrally formed to form a panel, and the touch switch mounting surface 18 on the back surface of the panel 10 is formed. The touch switch 11 is pasted with double-sided tape. If the touch switch mounting surface 18 is a three-dimensional curved surface in accordance with the surface of the panel 10, the double-sided tape or electrode must be pressed so that the double-sided tape or electrode adheres along the three-dimensional curved surface. There is a risk of disconnection or misalignment. However, since the touch switch mounting surface 18 of the present invention is made of a cylindrical surface, it has a high degree of adhesion compared to the three-dimensional curved surface of the panel 10, and it is reliable without causing damage to the double-sided tape, disconnection or displacement of the electrodes. It can be attached to the rice cooker 2 and is not peeled off due to the preheating of the rice cooker 2, rice cooking, heat retention, and heat history until the end.

  After the touch switch 11 is attached to the panel 10 as described above, as shown in FIG. 6, the touch switch 11 is surrounded so as to surround the touch switch 11 (in this embodiment, the gap between the liquid crystal display unit 5 and the touch switch 11 is small). The touch switch 11 and the window hole 21 for the liquid crystal display unit 5 are also enclosed), and a double-sided tape 25 is attached. And this panel 10 is put on the panel attaching part 4a of the shoulder body 4 of the rice cooker 2, and it contacts with the double-sided tape 25. FIG. Thereby, since the touch switch 11 is clamped between the panel 10 and the shoulder body 4 and the periphery is sealed with the double-sided tape 25, water can be prevented from entering from the outside.

  Next, the operation of the display device 1 will be described.

  In the state where the power of the rice cooker 2 is turned on, the characters and symbols for the touch switch 11 are hidden by the first printing layer 23 (same color as the rice cooker body) on the back surface of the panel 10 as shown in FIG. Yes. When the rice cooker is ready and the function switch 6 is pressed, the touch switch 11 is activated and the backlight 9 is lit. The light of the backlight 9 is stamped on the second printed layer 24 on the back surface of the panel 10. As a result of passing through the first printing layer 23 and passing through the first printing layer 23 and the panel body 16 and radiating to the outside, as shown in FIG. Therefore, when the user touches the character / symbol part for the touch switch 11 there, the touch switch 11 corresponding to the part is turned on.

Specifically, when the character portion of “Heat insulation selection” is touched, the corresponding touch switch 11 is turned on, and “Standard heat insulation” and “Good night heat insulation” are displayed on the liquid crystal display unit 5. By repeatedly touching the character part, either “standard heat insulation” or “night heat insulation” can be selected.
Touching the character portion of “Non-washed rice” displays the characters “Non-washed rice” on the liquid crystal display unit 5 and the menu of “Non-washed rice” can be selected. The word “washed rice” disappears and “no wash rice” can be deselected.
Touching the text area of “Cooking Menu” will display “Rice Rice Rapid”, “Cooking Komi”, “Sushimeshi”, “Okayu”, “Okowa”, “Brown Rice”, “Brown Rice Activity” on the LCD. Any of the rice cooking menus can be selected by repeatedly touching the character portion of “rice cooking menu”. The liquid crystal display unit 5 also displays “squishy”, “normal”, and “mochimochi”. By repeatedly touching the character portion of the “rice cooking menu”, one of the mochimochi degrees can be selected.
When you touch the text part of “Health Menu”, “Sprouting Course”, “Tofu”, “Yogurt”, “Onsen Tamago” are displayed on the LCD 5 and by repeatedly touching the text part of “Cooking Menu” Either health menu can be selected.
By touching the letters / symbols of “reservation”, “▲”, “▼”, it is possible to set a timer reservation for automatically cooking at the time you want to eat.
Furthermore, the current time can be adjusted by touching the character / symbol portions of “time adjustment”, “▲”, and “▼”.

  In the reservation operation, if the reservation time is stored in advance, first, the function switch 6 is pressed to enable the touch switch 11, then the “reserve” character portion of the touch switch 11 is pressed, and the rice cooking switch 8 is further pressed. By this, reservation cooking rice is started. In this case, the number of operations is increased as much as the function switch 6 is pressed compared to the conventional case. Therefore, reservation rice cooking for a reservation time stored in advance may be started by long-pressing the rice cooking switch 8. This greatly reduces the number of operations.

  When menu selection or reservation using the touch switch 11 is completed and the rice cooking switch 8 is pressed, rice cooking is started. The touch switch 11 is disabled during cooking. During the rice cooking operation, the touch switch 11 no longer needs to be operated, so it is concealed in the panel 10 to avoid malfunction. In addition, after a certain time has passed after the touch switch 11 is operated, the backlight 9 of the touch switch 11 is turned off, and the touch switch 11 becomes invalid.

  As described above, in the embodiment of the present invention, when normal cooking is performed without pressing the function switch 6, the touch switch 11 is hidden by the panel 10, and the function switch 6 is pressed to set various menus and reservation settings. When the touch switch 11 is operated, the touch switch 11 is lifted by the backlight 9 for a certain period of time, so that no more complicated switches than necessary are visible, the appearance is clean, and there is no risk of erroneous operation.

  Moreover, in embodiment of this invention, the mechanical switch of the function switch 6, the cancellation switch 7, and the rice cooking switch 8 and the touch switch 11 are used together. If there is no mechanical switch 6, 7, 8 and only the touch switch 11, the touch switch 11 may operate and malfunction if the cloth or hand touches the panel during cleaning or movement. However, in the embodiment of the present invention, the touch switch 11 is enabled only when the function switches 6, 7, and 8 are pressed, so there is no risk of malfunction.

  In the above-described embodiment, the touch switch mounting surface 18 on the back surface of the panel 10 is a cylindrical surface. However, as shown in FIG. 8, as shown in FIG. Touch switch mounting surfaces 18a to 18d each having a flat surface may be formed for each electrode 14. Thereby, workability | operativity at the time of sticking of the touch switch 11 and a close contact degree can be improved.

  In the above-described embodiment, the mechanical switches of the function switch 6 and the cancel switch 7 are individually provided. However, both of them can be shared by one mechanical switch. That is, the cancel switch 7 is abolished, and only one mechanical switch, for example, the function switch 6 is provided. When the function switch 6 is pressed once as usual, the mode is changed to the function mode, and the function switch is pressed for a long time (about 2 seconds) or twice. Configure to switch to cancel mode by pressing. For example, when the function switch 6 is pressed and held in the heat retention mode, the mode can be shifted to the cancel mode. Similarly, the rice cooker switch 8 or the cancel switch 7 can have the function of the function switch 6. That is, in the said embodiment, if function switch 6 is abolished and rice cooking switch 8 or cancellation switch 7 is pushed once as usual, it will shift to rice cooking mode and cancellation mode, respectively, and long press (about 2 seconds) or two times press. Configure to enter functional mode. Alternatively, only the rice cooker switch 8 is provided. When the rice cooker switch 8 is pressed once as usual, the mode is switched to the function mode and the backlight is turned on. When the rice cooker switch 8 is pressed once again while the backlight is on, the rice cooking mode is turned on. Configure to transition to By doing so, two functions can be shared by one mechanical switch, the number of parts can be reduced, and the degree of freedom in designing the panel can be improved.

The perspective view which shows the main body of the rice cooker provided with the display apparatus which concerns on this invention. The disassembled perspective view of the rice cooker of FIG. 1 which shows the state which removed the panel. The III-III line expanded sectional view of FIG. The panel exploded view of the display apparatus of FIG. The VV line expanded sectional view of FIG. The top view which shows the condition which attaches a panel to the shoulder part of a rice cooker. The front view of a display apparatus which shows the state (a) where the touch switch was hidden when the function switch was not operated, and the state (b) where the touch switch was raised when the function switch was operated. The perspective view which shows other embodiment of a panel. The front view which shows the panel arrangement | positioning of the conventional display apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Rice cooker 4a Panel to-be-attached part 6 Function switch 7 Cancel switch 8 Rice cooker switch 9 Backlight 10 Panel 11 Touch switch 18 Touch switch mounting surface 25 Double-sided tape

Claims (6)

In the display device of the cooker provided with a display unit for performing various displays,
A function switch consisting of a mechanical switch;
A touch switch that is arranged in a place other than the display unit and performs selection of functions necessary for cooking;
A backlight provided behind the touch switch,
When the function switch is not operated, the touch switch is concealed, and when the function switch is operated, the backlight is turned on and the touch switch is raised .
Forming the surface of the place where the touch switch is disposed in a three-dimensional shape;
Forming a touch switch mounting surface comprising a cylindrical surface that approximates the three-dimensional shape of the surface on the back surface of the surface;
The touch switch is pasted on the touch switch mounting surface.
A display device for a cooking device. In the display device of the cooker provided with a display unit for performing various displays,
A function switch consisting of a mechanical switch;
A touch switch that is arranged in a place other than the display unit and performs selection of functions necessary for cooking;
A backlight provided behind the touch switch,
When the function switch is not operated, the touch switch is concealed, and when the function switch is operated, the backlight is turned on and the touch switch is raised .
Forming the surface of the place where the touch switch is disposed in a three-dimensional shape;
Forming a touch switch mounting surface comprising at least two or more planes on the back surface of the front surface;
The touch switch is pasted on the touch switch mounting surface.
A display device for a cooking device. The display device for a cooking device according to claim 1 or 2 , wherein a cooking switch comprising a mechanical switch for performing a minimum operation necessary for cooking is provided separately from the function switch. Cooking switch consisting of mechanical switch to perform the minimum necessary operation for cooking, cooker of a display device according to claim 1 or claim 2, characterized in that provided so as to alternate with the function switch. When the cooker is rice cooker, cooking switches consisting of mechanical switch to perform the minimum necessary operation to the cooking, to claim 3 or 4, characterized in that it comprises at least a cooking switch and cancel switch The display device of the cooker as described. The said touch switch functions when the said function switch is operated, The display apparatus of the cooking appliance in any one of Claim 1 to 5 characterized by the above-mentioned.