JP5456512B2 - Cooker - Google Patents

Description

The present invention relates to a cooking device provided with a cooking switch operation unit on an upper surface of a main body, and in particular, a surface sheet having a switch operation unit formed on the upper surface of the main body is attached to correspond to the cooking switch. In this regard, the present invention relates to a technique for preventing an electric circuit such as a switch from being hindered even when boiled broth or the like enters the back side of the top sheet.

An operation display sheet with a button embossed part attached to the upper surface of the opening provided on the front side of the top plate frame is affixed with an adhesive, and an operation unit unit containing a key top and control circuit board is placed on the lower surface of the opening. If the operation display sheet is covered with water, spilled hot water, or spilled hot water during boiling, or when boiling, the adhesive on the operation display sheet passes through the opening. It serves to prevent water from entering the electronic components on the control circuit board, but the waterproofing adhesive is opened due to the usage environment, service life, and variations in the operation display sheet. It is difficult to completely adhere to the plate frame around the part, and an incompletely bonded part may be generated or peeled off locally. In order to solve this problem, it is only necessary to increase the adhesive strength of the adhesive that bonds the operation display sheet to the plate frame, but there is a limit to increasing the adhesive strength to obtain a completely sealed waterproof performance. It was extremely difficult to prevent the liquid from entering the operation display unit, such as water and hot water from the outside, and the broth overflowing from the pan.

In view of such a point, it has a top plate disposed on the upper surface of the main body, a top plate frame surrounding the top plate, and a plurality of operation embossed portions attached to the upper surface of the top plate frame. In a heating cooker including an operation display sheet and an operation display drive unit disposed at a lower portion of the top plate frame so as to face the operation display sheet, an opening is formed at a position facing the operation embossing part of the top plate frame. And a waterproof cover made of a rubber-based material is disposed on the upper surface of the operation display drive unit on the lower surface of the opening so as to cover the upper surface of the operation display drive unit (see Patent Document 1).

The thing of this patent document 1 arrange | positions the waterproof cover 23 which consists of rubber materials newly so that the upper surface of the operation display drive part 15 may be covered. The waterproof cover 23 is transparent or semi-transparent, and is provided with reinforcing ribs 23a around and vertically and horizontally, just below the opening of the top plate frame 6 facing the operation embossed portion 12a of the operation display sheet 12. Projection 23b
And the drive unit substrate 17 of the operation display drive unit 15 that is divided into left and right parts is separately arranged so as to cover from the upper surface thereof.

The waterproof cover 23 incorporates wiring members such as an indicator lamp 18a, a liquid crystal display 18b, an operation input button 22, a wiring card cable / connector 19, a wiring component / connector 20 and the like into the operation display driving unit 15, and the wiring member is used for wiring. After being pulled out from the bottom of the drive unit storage case 16 through the hole 21 and wired to various components such as an induction heating coil, the drive unit substrate 17 divided into two parts is arranged so as to cover from above.

JP 2008-241087 A

As described above, since the waterproof cover 23 is made of a rubber-based material, it is necessary to reinforce the reinforcing ribs 23a formed around and vertically and horizontally, and in order to facilitate the pressing operation of the operation input button 22, Corresponding to each operation input button 22, the operation embossed portion 12 of the operation display sheet 12.
A protrusion 23b facing a is formed.

Then, openings 6b are formed in the top plate frame 6 so that the protrusions 23b formed on the waterproof cover 23 corresponding to the operation input buttons 22 individually enter, and the individual protrusions 23b penetrate the openings 6b. It protrudes upward and faces the operation embossed portion 12a of the operation display sheet 12.

Thus, in the thing of patent document 1, since the waterproof cover 23 consists of a rubber-type material, the protrusion which opposes the operation embossing part 12a of the operation display sheet 12 corresponding to the rib 23a for reinforcement and the operation input button 22 The part 23b is necessary, and the shape itself needs to be formed into a complicated shape.

The present invention relates to a cooking device in which a top sheet in which a switch operation portion is formed by a pressing embossed portion bulging upward is attached to an upper surface portion of a main body portion corresponding to a pressing operation portion of each switch for cooking. However, as a technique for preventing the trouble of the switch or the like even if boiled broth or the like enters the back side of the surface sheet, it is not waterproofed by the waterproof cover 23 made of a rubber-based material as in Patent Document 1, but PET Cover the switch attached to the board with a thin but relatively waterproof film like a film.

In this case, the second embossed portion corresponding to each of the pressing embossed portions formed on the top sheet is formed on the waterproof film, and a plurality of adjacent second embossed portions are protruded upward. The opening is formed in the upper surface portion of the main body portion, and the top sheet and the waterproof film are arranged so as to sandwich the upper surface portion of the main body portion vertically. Even if the waterproof film is a thin PET film, the operation of only the target switch is achieved by the pressing operation, the switch operation is stabilized, and the rubber-based material having a complicated shape of Patent Document 1 is obtained. Without using the waterproof cover 23 made of
The present invention provides a structure in which the effect of preventing liquid from entering a switch or the like is further improved.

The first invention is a heating in which a top sheet in which a switch operation portion is formed by a pressing embossed portion bulging upward is attached to an upper surface portion of the main body portion for each operating portion of a plurality of switches arranged in the main body portion. In the cooker, the second pressing embossed portion corresponding to each of the pressing embossed portions is formed to bulge, and a plurality of adjacent second pressing embossed portions are spaced upward from one base embossed portion. In an arrangement in which an opening into which the pedestal embossed part fits is formed in the upper surface part of the main body part, and the top sheet and the waterproof film sandwich the upper surface part of the main body part vertically, The pedestal embossed portion is kept in a state of being fitted into the opening.

According to a second aspect of the present invention, in the first aspect of the present invention, the embossing for pressing formed on the top sheet by the upper surface of the second pressing embossed portion in a state where the pedestal embossed portion is fitted in an opening formed on the upper surface portion of the main body portion. It is characterized by being in contact with or close to the back side of the part.

A third invention is the first invention or the second invention, wherein the top sheet and the waterproof film are adhered to the upper and lower surfaces of the upper surface portion of the main body portion, and the second pressing embossed portion is the upper surface of the main body portion. In a state of projecting upward from the part, it is in contact with or close to the back side of the embossing part for pressing formed on the top sheet.

In this case, the waterproof film is simply a flat thin PE that does not form a pedestal embossed portion.
In the case of a T film, when one of the adjacent second pressing embossed portions is strongly pressed in accordance with the pressing of the pressing embossed portion, the adjacent second pressed embossed portion is also pulled and moved downward. There is concern that the switch next to the target switch may be activated.

However, in the present invention, even if the waterproof film is a thin PET film, when one of the adjacent second press embossed portions is pressed, even if a pulling action occurs in the adjacent second press embossed portion, the bulge is formed. Due to the vertical deflection by the second pressed embossed portion and the pedestal embossed portion, the adjacent key top 46A is suppressed from being pressed downward. It becomes a buffer part that reduces the pulling action that occurs in the adjacent second pressing embossed part, and only the switch for the operation purpose is operated, and the adjacent switch is prevented from operating, and a stable switch operation is obtained. It will be a thing.

In the present invention, since the top sheet and the waterproof film are attached to the upper and lower surfaces of the upper surface portion of the main body portion, the liquid that has entered the back side of the top sheet is attached to the adhesive portion between the waterproof film and the upper surface portion of the main body portion. This part acts as the second waterproof part, and the waterproof effect is improved.

It is a perspective view which shows the relationship which incorporates the heating cooker which concerns on this invention in a kitchen equipment stand. It is a perspective view which shows the state which integrated the heating cooker which concerns on this invention in the kitchen equipment stand. It is a perspective view which shows the inside which removed the top plate of the heating cooker which concerns on this invention. It is a disassembled perspective view of the operation part of the upper surface arrangement | positioning of the heating cooker which concerns on this invention. It is the vertical side view which decomposed | disassembled the operation part of the upper surface arrangement | positioning of the heating cooker which concerns on this invention. It is a vertical side view shown by the partial expansion of the operation part of the upper surface arrangement | positioning of the heating cooker which concerns on this invention. It is a perspective view of the key top part formed in the operation case of the cooking-by-heating machine concerning the present invention.

In the present invention, for each of the operation parts of the plurality of switches arranged in the main body part, a heating sheet in which a top sheet in which a switch operation part is formed by a pressing embossed part bulging upward is attached to the upper surface part of the main body part In the container, the second pressing embossed portion corresponding to each of the pressing embossed portions is formed to bulge, and a plurality of adjacent second pressing embossed portions bulge upward with a space between one pedestal embossed portion. An opening in which the pedestal embossed part fits is formed in the upper surface part of the main body part, and the top sheet and the waterproof film are arranged to sandwich the upper surface part of the main body part up and down, The pedestal embossed portion is configured to maintain a state of being fitted into the opening.

In the present invention, when the heating unit as the heating cooker is, for example, two induction heating coils,
Or it is a case where there are a plurality of heating parts for cooking as in the case of a combination of an induction heating coil and a radiant heater, and in the embodiment shown below, the heating part is a combination of an induction heating coil and a radiant heater. The case shall be described.

Hereinafter, as an example of the present invention, an embodiment of a heating cooker 1 including one induction heating coil 4 and one radiant heater 5 will be described in detail with reference to the accompanying drawings. FIG.
It is a perspective view which shows the state by which the heating cooker 1 which concerns on 1st Embodiment of this invention is attached to the kitchen equipment stand. The heating cooker 1 is a form incorporated into a system kitchen or a kitchen equipment table 7 such as a cooking table or a sink by a drop-in method, as shown in FIGS.
A main body 2 having a substantially rectangular case and a top plate 3 made of heat-resistant glass supported by a top frame 6 attached to the upper surface of the main body 2 are provided. The induction heating coil 4 and the radiant heater 5 serving as heat sources are provided in the lower space corresponding to the above.

As shown in FIG. 3, the main body 2 forms a substantially rectangular case having an upper surface opening by a side wall 2 </ b> B attached to the bottom wall 2 </ b> A so as to surround the bottom wall 2 </ b> A and surrounding four sides. The top plate 3 made of heat-resistant glass is in a state in which the peripheral portion is supported by a top plate frame 6 attached to the side wall 2B with screws so as to cover the upper surface opening of the main body 2.

The induction heating coil 4 is attached to the upper surface of a synthetic resin support frame 4A, and is supported by a synthetic resin base member 20 attached to the bottom wall 2A of the main body 2 in a horizontal state. This support structure is supported by a plurality of pillars standing from the base member 20 by a coil spring, and is biased upward so that the peripheral flange of the support frame 4A abuts the lower surface of the top plate 3 made of heat-resistant glass. ing.

Further, the radiant heater 5 is mounted in a heat-resistant support frame 5A having an opening on the upper surface, and the support frame 5A is attached to the upper surface of a support base 18 mounted so as to rise from the bottom wall 2A by a support member 19 of a coil spring at a plurality of locations. The support frame 5A is urged upward so that the support frame 5A contacts the lower surface of the heat-resistant glass top plate 3.

On the top plate 3 corresponding to the induction heating coil 4 and the radiant heater 5, circular cooking container placement portions 8 and 9 are displayed by printing or the like in order to clearly indicate the place where the cooking container such as a pan is placed. Has been. In the embodiment, the induction heating coil 4 has a heating value of 200 volts and 1.5 Kw, and the radiant heater 5 has a heating value of 200 volts and 1.2 Kw, but is not limited thereto.

The illustrated kitchen equipment table 7 is shown in the form of a sink 7, and an insertion hole 11 into which the main body 2 of the sink 10 and the cooking device 1 is dropped is provided on the upper surface plate 7 </ b> A of the kitchen equipment table 7 (the sink 7). Is formed through. Thereby, the lower side of the top plate frame 6 is held in a state of being locked to the upper surface plate 7A at the periphery of the insertion hole 11 by a so-called drop-in method in which the main body 2 is dropped into the insertion hole 11. In this holding state, the heating cooker 1 is fixed to the kitchen equipment table 7 (a sink 7) so that the main body 2 is not detached by a bolt screw or other means.

Since the lower part of the upper surface plate 7A of the kitchen equipment table 7 (the sink 7) is an article storage space, the front surface of the article storage space 12B below the sink 9 can be opened and closed by the doors 8A and 8B. The front surface of the article storage space 12A on the lower side of the cooking appliance 1 can be opened and closed by an open / close door 8C. As described above, in the cooking device 1 dropped into the insertion hole 11, the bottom wall 2 </ b> A of the main body 2 is exposed above the article storage space 12 </ b> A.

In the main body 2, a circuit board 25 including a heat dissipation member 27 of an energization control circuit (not shown) of the induction heating coil 4 and the radiant heater 5 is disposed substantially horizontally on the upper surface of the base member 20,
In the main body 2, the induction heating coil 4 and the radiant heater 5 are cooled, and the heat radiating member 2.
In order to cool 7, a cooling fan (not shown) is disposed below the induction heating coil 4. The air after the respective parts are cooled by the air blown by the cooling fan flows in the lateral direction along the lower surface of the top plate 3 to cool the radiant heater 5, and then the back which is a part of the side wall 2 </ b> B of the main body 2. It flows from the exhaust hole 38 formed in the wall 2B to the back side of the back wall 2B, and passes from the exhaust duct 39 formed on the back side of the back wall 2B through the exhaust cover 17 in which a large number of exhaust holes 17A forming the exhaust part 16 are formed. Released.

The cooking device 1 is arranged on the front side of the top plate 3 on the front side (front side) of the top plate 3 so as to be arranged on the top surface.
An operation unit 15 including a switch operation unit 13 for performing energization control and heat generation control of the induction heating coil 4 and the radiant heater 5 and an LED display unit 14 corresponding thereto is provided. In the main body 2, below the operation unit 15, an operation substrate 40 is housed and attached in a substantially horizontal state with screws in an operation case 41 made of synthetic resin. On the upper surface of the operation board 40, corresponding to the switch operation unit 13, a plurality of cooking switches 42 for performing energization control and heat generation control of the induction heating coil 4 and the radiant heater 5, and the LED display unit 14 are provided. Correspondingly, an LED 44 that emits light and does not emit light when each switch 42 is turned on and off is attached.

Each switch 42 is provided with an ON-OFF actuating portion 43 at the top, and the operation case 41 has a key top 46 that is a movable portion that can move up and down correspondingly to the actuating portion 43 of each switch 42.
Is formed. As shown in FIG. 8, the key top 46 is integrally formed in a connected state with a pair of left and right elastic portions 46P integrally formed with the upper wall of the operation case 41, and is supported by the elastic portion 46P so as to be vertically movable. The operation case 41 has a LE corresponding to each LED 44.
A D storage cylinder 47 is formed.

In a state where the operation board 40 is attached to the operation case 41, the operating portion 43 of each switch 42.
Is in contact with or close to the lower surface of the key top 46. In the embodiment, the upper surface of the operating portion 43 of each switch 42 and the lower surface of the key top 46 are opposed to each other with a gap of 0.3 mm.
Moreover, each LED44 will be in the state arrange | positioned in each LED storage cylinder part 47, and LE which adjoins.
The light of D44 is blocked.

The switch operation unit 13 and the LED display unit 14 are formed on a top sheet 60 made of a synthetic resin that is attached to the upper surface of the front portion of the top frame 6 corresponding to the upper surface of the main body, and are pressed in a vertical direction. The switch operation unit 13 bulging upward as an embossing unit for display displays the operation unit with characters, symbols, and the like, and is formed into a shape slightly bulging upward as described later. Top sheet 6
0 indicates that the LED display unit 14 is formed in a light-transmitting state for each LED 44, and other portions are formed in an opaque state, and the LED display unit 14 is disposed separately so that only the light of the corresponding LED 44 is transmitted. Has been.

Corresponding to the operation section 15, a thin waterproof sheet 50 made of synthetic resin and having a thickness of about 0.1 mm is disposed between the top panel frame 6 and the operation case 41. The waterproof sheet 50 is sized to cover at least the key tops 46 corresponding to the switches 42 and the entire LED storage cylinder portion 47 in which the LEDs 44 are stored. In the embodiment, the waterproof sheet 50 covers the entire top surface of the operation case 41. The size is affixed to the front lower surface of the top frame 6.

The switches 42 are arranged side by side as a set of functionally related switches 42. In the form shown in the figure, the first set has three adjacent key tops 46 on the left side (in FIG. 4). The second set is a set of four adjacent key tops 46 (shown as 46B in parentheses in FIG. 4).
And the third set is a set of switches 42 corresponding to one adjacent key top 46 (shown as 46C in parentheses in FIG. 4) on the right side. It is configured as.

Corresponding to the operation unit 15, a through hole 45 corresponding to the switch 42 and a through hole 48 corresponding to the LED 44 are formed in the top plate frame 6 corresponding to the upper surface of the main body. As mentioned above
The switches 42 are arranged as a set of functionally related switches 42, and the key tops 46 (46A) corresponding to the first set of switches 42 are arranged in the first through holes 45 (in parentheses in FIG. 4). The key top 4 corresponding to the second set of switches 42.
6 (46B) corresponds to the second through hole 45 (shown as 45B in parentheses in FIG. 4),
The key top 46 (46C) corresponding to the third set of switches 42 has a configuration corresponding to the third through hole 45 (shown as 45C in parentheses in FIG. 4).

In the embodiment shown in the figure, the first set of three switches 42 (corresponding to the key top 46A shown in parentheses in FIG. 4) includes one switch for turning on and off the radiant heater 5; It consists of two switches for increasing and decreasing the heat generation of the radiant heater 5. The four switches 42 in the second set (corresponding to the key top 46B shown in parentheses in FIG. 4) are one switch for turning on and off the induction heating coil 4, and the induction heating coil 4. It consists of three switches for selecting strong, medium and weak heat generation. Also,
A third set of one switch 42 (corresponding to the key top 46C shown in parentheses in FIG. 4)
Is an ON-OFF switch of the power source of the heating cooker 1.

On the upper surface of the operation case 41, a portion where three key tops 46 (key tops 46A shown in parentheses in FIG. 4) corresponding to the three switches 42 in the first set are arranged slightly bulges upward. The formed first pedestal portion 49A is formed, and 4 corresponding to the second set of four switches 42 is formed.
A second pedestal portion 49B is formed in which a portion where the key tops 46 (the key tops 46B shown in parentheses in FIG. 4) are arranged is slightly bulged upward. A third pedestal portion 49C is formed in which a portion where one key top 46 corresponding to the switch 42 (key top 46C shown in parentheses in FIG. 4) is arranged is slightly bulged upward.

The first pedestal embossed portion 51A is bent in the vertical direction on the waterproof sheet 50 so that the first pedestal portion 49A, the second pedestal portion 49B, and the third pedestal portion 49C fit in each other.
A second pedestal embossed portion 51B that is bent in the vertical direction and a third pedestal embossed portion 51C that is bent in the vertical direction are formed to bulge upward. The pedestal embossed portions 51A, 51B, and 51
C denotes a corresponding first through hole 45A, second through hole 45B, and third through hole 4 respectively.
The first pedestal embossed portion 51A is preferably sized and shaped to fit the rectangular first through hole 45A, and fits into 5C, and the second pedestal embossed portion 51B. Is a size and shape substantially matching the rectangular second through hole 45B, and the third pedestal embossed portion 51C is size and shape substantially matching the square third through hole 45C. .

A second press that bends in the vertical direction in which the upper ends of the three key tops 46A of the first set included in the corresponding first pedestal portion 49A are fitted into the first pedestal embossed portion 51A of the waterproof sheet 50. Embossed portions 52A are formed to bulge upward. Also, the second pedestal embossed part 5
In 1B, the second press embossed portions 52B that are bent in the vertical direction in which the upper ends of the four key tops 46B of the second set included in the corresponding second pedestal portion 49B are fitted bulge upward, respectively. Is formed. Further, the third pedestal embossed portion 51C has a second pressing embossed portion that is bent in the vertical direction in which the upper end portion of one key top 46C of the third set included in the corresponding third pedestal portion 49C is fitted. 52C is formed to bulge upward.

In the configuration described above, the pedestal embossed portions 51A, 51B, and 51C are fitted into the first through hole 45A, the second through hole 45B, and the third through hole 45C, respectively, corresponding to the waterproof sheet from below. 50 is affixed to the lower surface of the front portion of the top frame 6, and the operation case 41 is fixed to the top frame 6 with screws 53 that are screwed into the screw holes 41 </ b> A. In this state, the first pedestal portion 49A, the second pedestal portion 49B, and the third pedestal portion 49C respectively correspond to the first pedestal embossed portion 51A, the second pedestal embossed portion 51B, and the third pedestal portion. The top embossed portion 51C is fitted from below, the upper ends of the three key tops 46A of the first set are fitted into the second press embossed portion 52A from below, and the second press embossed portion 52B is secondly fitted from below. Pair of 4 key tops 4
The upper end portion of 6B is fitted, and the upper end portion of one key top 46C of the third set is fitted into the second pressing embossed portion 52C from below.

In this state, the flat front upper surface 6 in which the top sheet 60 is a predetermined position on the front upper surface of the top frame 6.
Affixed to T. The switch operation unit 13 of the top sheet 60 includes a second pressing embossing unit 52A,
The portions corresponding to 52B and 52C are formed in a shape slightly bulging upward to form a first pressing embossed portion, and the switch operating portion 13 is provided with a second pressing embossed portion 52A, 52B, and In a state where the top sheet 60 is affixed to the front upper surface 6T, which is a predetermined position corresponding to each of the 52Cs, the corresponding second press embossed parts 52A, 52B, and 52C are respectively placed on the back side of the respective switch operation parts 13. Close or close. This state is shown in FIG. At the center of the switch operation unit 13, a boss 13A protruding upward is formed as a touch when touched with a finger.

In addition, after attaching the surface sheet 60 to the front upper surface 6T which is a predetermined position of the front upper surface of the top frame 6 in advance, and attaching the waterproof sheet 50 to the front lower surface of the top frame 6, The order in which 41 is fixed to the top frame 6 with screws 53 may be used, and the assembly order is not limited as long as the configuration shown in FIG.

The state assembled in this way is shown in FIG. In this assembled state, the flat upper surfaces of the pedestals 49A, 49B, and 49C are the top frame 6 to which the top sheet 60 is attached.
The upper surface 46T of the key top 46 (46A to 46C) is configured to be slightly higher than the front upper surface 6T of the top plate frame 6. Accordingly, the upper surfaces of the second pressing embossed portions 52A, 52B, and 52C are higher than the front upper surface 6T of the top frame 6 by the thickness of the waterproof sheet 50. To accommodate this,
The switch operation portion 13 of the top sheet 60 is formed with a pressing embossed portion that bulges upward, and the upper surface of the second pressing embossed portions 52A, 52B, and 52C is the pressing embossed portion. It will be in contact with or in close proximity to the back surface of the.

With such a configuration, as shown by a dotted arrow in FIG. 5, the liquid such as boiled juice that has penetrated from the end of the topsheet 60 to the back side of the topsheet 60 passes through the through-hole 45, that is, the first through-hole 4.
Even if it flows into 5A, the 2nd through-hole 45B, or the 3rd through-hole 45C, since each keytop 46A and each switch 42 are covered with the waterproof sheet 50, liquids, such as boiled juice, each switch 42 Therefore, the switch 42 does not malfunction. In addition, liquid such as boiled juice that has flowed into the first through hole 45A, the second through hole 45B, or the third through hole 45C,
There is no malfunction caused by a short circuit of the operation board 40 due to a liquid such as boiled broth that does not reach the operation board 40. Also, when a liquid such as broth flows into the through hole 48 corresponding to the LED 44,
The LED 44 and the operation board 40 are not reached, and the same effect is obtained.

In addition, the waterproof sheet 50 has a first pedestal embossed portion 51A that is bent in the vertical direction.
A second pedestal embossed portion 51B and a third pedestal embossed portion 51C are formed to bulge upward. If the waterproof sheet 50 remains flat, for example, when one of the first set of three key tops 46A is pushed downward, the waterproof sheet 50 is pulled along with it,
The adjacent key top 46A moves downward, and the operating portion 43 of the switch 42 corresponding to the adjacent key top 46A is pushed to operate the switch.

However, in the present invention, for example, the upper ends of the three key tops 46A of the first set included in the corresponding first pedestal portion 49A are fitted into the first pedestal embossed portion 51A and bent in the vertical direction. Since the second pressing embossed portion 52A is bulged upward, even if one of the switch operating portions 13 that are pressing embossed portions corresponding to the three key tops 46A is pressed downward. Due to the bulge of the second pressing embossed portion 52A and the bulge of the first base embossed portion 51A corresponding thereto, vertical deflection occurs, and the adjacent key top 46A is suppressed from being pushed downward. For this reason, it is possible to prevent the switch from being operated by pressing the operating portion 43 of the switch 42 corresponding to the adjacent key top 46A. Thus, a stable switch operation can be obtained. The same applies to the second pedestal 52B.

As described above, in a state where the operation board 40 is attached to the operation case 41, a slight gap (0. 0 in the embodiment) is provided between the upper surface of the operating portion 43 of each switch 42 and the lower surface of the key top 46. 3 mm gap), and the other switch is pushed by the bending of the base embossed portion 51A caused by one of the adjacent switches being pushed. In the embodiment, a gap of 0.3 mm) acts as a buffer distance,
The malfunction of the adjacent switch can be prevented more reliably.

In addition, the pressing embossed portions 13 (switch operating portions 13) of the first set of switches 42, the second set of switches 42, and the third set of switches 42 are respectively separate first pedestal embossed portions. 51A, the second pedestal embossed portion 51B, and the third pedestal embossed portion 51C, for example, the pressing action of the first set of embossing portions 13 for pressing is another set of pedestal embossed portions 51B. , 51C is not affected, so that the switch operation does not adversely affect other switches.

The heating cooker according to the present invention is not limited to the configuration shown in the above-described embodiment, but can be applied to various forms, and includes various forms within the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Cooking device 2 ... Main part 2A ... Bottom wall of main part 3 ... Top plate 4 ... Induction heating coil 5 ... Radiant heater 6 ... top plate frame 6T ... upper surface of top plate frame 7 ... kitchen equipment stand (sink)
7A ··· Top plate 8, 9 ··· Cooking container placement portion 10 ··· Sink 11 ··· Insertion hole 12A, 12B ··· Article storage space 13 ··· Operation switch portion 14 ..... LED display part 15 .... Operating part 16 .... Exhaust part 17 .... Exhaust cover 19 .... Coil spring support member 20 .... Base member 25 ...... Circuit Substrate 27 ... Heat dissipation member 38 ... Exhaust hole 40 ... Operation board 41 ... Operation case 42 ... Switch 43 ... Switch operating part 44 ... LED
45 .... Through hole 46 ... Key top 48 ... Through hole 49A ... First pedestal part 49B ... Second pedestal part 49C ... Third pedestal part 50. ... Waterproof sheet 51A ... First pedestal embossed part 51B ... Second pedestal embossed part 51C ... Third pedestal embossed part 52A ... Second press embossed part 51B ... Second Pressing embossed part 51C ... Second pressing embossed part 53 ... Screw 60 ...... Surface sheet

Claims (3)

In the heating cooker in which a top sheet in which a switch operation portion is formed by an embossing portion for pressing bulged upward is attached to the upper surface portion of the main body portion for each of the operation portions of the plurality of switches arranged in the main body portion, A waterproof structure in which a second pressing embossed portion corresponding to each of the pressing embossed portions is formed to bulge, and a plurality of adjacent second pressing embossed portions bulge upward and are arranged with a space therebetween. An opening in which the pedestal embossed part is fitted is formed in the upper surface part of the main body part, and the pedestal embossed part is arranged so that the top sheet and the waterproof film sandwich the upper surface part of the main body part vertically. A heating cooker characterized by maintaining a state fitted in the opening. With the pedestal embossed portion fitted into an opening formed in the upper surface portion of the main body portion, the upper surface of the second pressing embossed portion is in contact with or close to the back side of the pressing embossed portion formed on the top sheet. The cooking device according to claim 1. In the state where the top sheet and the waterproof film are affixed to the upper and lower surfaces of the upper surface portion of the main body portion, the second pressing embossed portion projects upward from the upper surface portion of the main body portion. The cooking device according to claim 1 or 2, wherein the cooking device is in contact with or close to the back side of the formed embossing portion for pressing.

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