JP4162558B2 - Cooker - Google Patents

Description

  The present invention relates to a heating cooker that is incorporated in a kitchen or the like and that heats an object to be heated through a cooking container placed on a top plate.

Conventionally, as a heating cooker, in an induction heating cooker using, for example, a heating coil as a heating means, many are incorporated in a kitchen or the like, and a drop-in type is generally adopted as the built-in means. Yes. This built-in means is to drop the cooker body containing the roaster function, the heating means, and the drive mechanism part such as the cooling fan from the opening formed in the upper surface plate of the kitchen or the like so as to cover the upper surface of the main body. It is set as the structure hold | maintained to this opening part periphery by the top plate provided and wider than the said opening part (for example, refer patent document 1).
Japanese Patent Laid-Open No. 2002-267185 (FIGS. 1 and 2)

  More specifically, an example of the holding means as described above will be described with reference to an enlarged cross-sectional view of the main part shown in FIG. 4. In this type of drop-in type heating cooker, the top plate 1 of the kitchen. Is formed with a standardized setting in the industry, so that the horizontal dimension Y of the cooker body 3 to be dropped into the opening 2 is naturally the above-described opening 2. The width is set as large as possible while the width is not more than Z, and is usually designed and manufactured to 543 mm. On the other hand, the top plate 4 covering the upper surface of the main body 3 has a width dimension X (for example, 599 mm) slightly larger than the width dimensions Z and Y so as to conceal the opening 2 and be held at the periphery thereof. It is said.

  Incidentally, the dimension W from the outer peripheral end of the top plate 4 to the side wall of the main body 3, that is, the dimension W that the so-called top plate 4 protrudes laterally from the main body 3 is 28 mm. Part 2 is held at the periphery. In this example, the top plate 4 is composed of a top plate 5 and a frame 6 attached to the peripheral portion thereof, and a holding portion 7 made of an elastic member that also functions as a water seal on the back surface (lower surface) side of the frame 6. Is provided.

  Therefore, the top plate 4 is configured to support the weight of the heating cooker while the holding portion 7 is in pressure contact with the upper surface plate 1, and is thus housed in the kitchen and held on the upper surface plate 1. However, since the average gap V between the opening 2 and the main body 3 is 8.5 mm, the holding portion 7 should be provided in a dimension range of less than 20 mm of the remaining protrusion dimension W (28 mm). Instead, it is located outside the center position of the protrusion dimension W (indicated by the center line U in the figure).

  Thus, an eddy current is induced in the pan 8 by placing the pan 8 (cooking vessel) indicated by a two-dot chain line on the top plate 4 and supplying a high-frequency current to the heating coil 9 inside the main body 3. Then, the cooking object inside can be cooked. Further, since the lateral width X of the top plate 4 is a compact size that is only 28 mm (corresponding to the protruding dimension W) on one side with respect to the lateral width Y of the main body 3 as described above, the top plate 4 More precisely, the weight load including the pan 8 and the like placed on the top plate 5 can be held by the holding portion 7 located in the vicinity of the load, that is, the outer peripheral edge portion of the so-called top plate 4. .

  However, even if the pan 8 has various diameters, for example, in a two-neck type cooking device, when the pan 8 or the like is placed side by side, a predetermined pan interval is required at the center, When the pan 8 has a large diameter, a part of the handle protrudes from the left and right of the top plate 4 and comes into contact with the other, or the two placed pans 8 and their handles are in contact with each other. For example, the allowable maximum diameter of the pan 8 is conventionally limited to about 250 mm on the top plate 4, and the left and right outer shell positions of the pan 8 are approximately that of the main body 3. It can be installed within the width dimension Y.

  Therefore, while maintaining the industry standard such as the width dimensions Y and Z of the main body 3 and the opening 2 for dropping, the heating coil 9 remains in its current form (for example, 180 mm in diameter) and the width dimension X of the top plate 4 is maintained. If the width is made larger than the current 599 mm, for example, 700 to 750 mm wide, it is conceivable that the above problems can be solved and various types of cooking containers such as large-sized pans can be used and handled easily. .

  However, increasing the width dimension X of the top plate 4 to enable use of a large-sized cooking container increases the weight load applied to the top plate 4 itself, and the stress of the top plate 5 generally made of glass is increased. In addition, since the holding portion 7 is positioned closer to the outer peripheral end portion of the top plate 4, the top plate 4 receives weight and becomes more easily bent, and is inferior in terms of durability. There are concerns about problems such as lack of reliability for practical use, such as being unable to maintain an appropriate distance from the above and adversely affecting heating characteristics.

The problem we are trying to solve is that when the width of the top plate is increased to facilitate the use of various types of cooking containers such as large pots and to improve usability, the weight load on the top plate increases. As a result, the stress increases, and there is a concern about the influence on the durability and heating characteristics of the top plate.
In order to solve the above-mentioned problems, the present invention uses a holding means effective to sufficiently withstand the weight load applied to the top plate while making the top plate wide, and has a reliability that can be incorporated into a kitchen or the like for practical use. An object is to provide a high heating cooker.

In order to achieve the above object, a heating cooker according to the present invention is provided so as to cover a main body housed in an upper surface plate of a kitchen or the like, heating means disposed in the main body, and the upper part of the main body. A heated top plate that heats an object to be heated via a cooking vessel placed on the top plate, and extends laterally from the main body to be placed on the top plate. A first flange portion having a horizontal portion that holds the main body, and is positioned at an upper portion of the first flange portion and extends to an outer peripheral end portion along a back surface of an outer peripheral edge portion of the top plate It provided to be, and a second flange portion addressed to cormorants on a rear surface of the top plate, said first flange portion is 1/2 of the distance from the body sidewall to the peripheral edge of the top plate together is disposed in the main body toward within, sites the second was bent above the tip It is intended to mainly characterized in that a configuration that abuts against the flange portion.

  According to the heating cooker of the present invention, since the holding portion is disposed closer to the main body, it is possible to prevent an excessive load from being applied to the wide top plate, and it is excellent in durability, reliability, and usability. Can provide cooker.

1 to 3 showing an embodiment in which the present invention is applied to a drop-in type cooking device.
First, the overall schematic configuration will be described based on an external perspective view incorporated in the kitchen of FIG. 2 and a front view of the essential part of FIG. 3 broken away. This heating cooker is of a so-called three-mouth type. The main body 21 of the cooker having a rectangular box shape as in the prior art and a top plate 22 provided so as to cover the upper part, the top plate 22 is composed of a heat-resistant glass top plate 23 and its peripheral edge. The outer peripheral end portion of the top plate 23 is covered with the frame 24.

  The main body 21 is pre-stored by receiving input signals such as an operation unit 25 having a plurality of (three) heating means and an operation dial, which will be described later, a cooling fan (not shown), and various detection signals. Based on a control program, the heating means of the heating means and a control circuit for driving and controlling an inverter circuit (not shown) are incorporated. A roaster 26 for cooking pottery is provided below the heating unit and on the left side of the operation unit 25, and includes a heating unit using a sheathed heater (not shown).

  On the other hand, a rear portion (back) of the top plate 22 is provided with intake / exhaust means having a cover member 27 as shown in FIG. 2, and communicates with the intake / exhaust passage of the cooling fan. And on the upper surface of the top plate 23 constituting the top plate 22, heating portions 28, 29, and 30 are formed by displaying a ring-shaped frame by printing, for example, at three locations corresponding to the heating means described later. . And the thermal power display parts 31-33 of a heating means are provided in the near side corresponding to these heating parts 28-30, and these constitute a plurality of LED light emitting elements in a chain state, and the operation part 25 The heating power is adjusted based on the setting operation by, so that the strength degree can be easily determined from the position where the lighting is displayed.

The heating units 28 to 30 indicate a mounting region for effectively heating a cooking container (not shown). The heating units 28 to 30 are displayed larger in diameter than the heating means described later. In the embodiment, the diameter of a pan having the maximum diameter allowed as a cooking container (details will be described later) is also shown.
Here, the configuration of the heating means will be described. Heating coils 34 and 35 having different outputs are arranged in the horizontal direction in the figure in the lower position of the top plate 23 corresponding to the heating units 28 and 29 arranged on the left and right sides. In addition, a radial heater 36 made of nichrome wire is disposed at a lower position corresponding to the heating unit 30 located in the center back, and these heating means are substantially circular (in addition to polygonal shapes) in this embodiment. However, it is formed and fixed to the inner case 37 in the upper part of the main body 21 by an appropriate fixing means.

  And in the vicinity of the outer periphery of the heating coils 34, 35 disposed on the left and right of these, magnetic shield plates 38, 39 made of aluminum and made of a ring-shaped horizontal plate are provided, as shown in FIG. Electromagnetic leakage from the heating coils 34 and 35 is prevented. However, the left end portion of the left magnetic shield plate 38 and the right end portion of the right magnetic shield plate 39 are formed with bent portions 38a and 39a bent vertically downward, for example, so-called left and right end portions have horizontal portions. The surface area is ensured by the rising portion to make the magnetic shielding function effective while being small, and the body 21 is compactly arranged in the limited space space in the left-right direction as the industry standard.

And the heating cooker which consists of the said structure is integrated in the kitchen 40 as follows. That is, an opening 42 for dropping is formed in the top plate 41 of the kitchen 40, and the main body 21 is inserted so as to drop from above the opening 42, and the wide top plate 22 portion is the top plate. It is hooked and held in a form placed on the peripheral edge of the opening 41, and is incorporated into the kitchen 40 as a so-called drop-in type heating cooker.
In this case, the outer peripheral edge of the top plate 22 is held at the periphery of the opening 42, but the main body on the back side of the outer peripheral edge of the top plate 22 is provided to increase the mechanical strength of the portion. 21 It is comprised so that the flange part extended from upper part may be addressed.

The specific configuration will be described below with reference to the enlarged sectional view of the main part shown in FIG.
That is, as the flange portion of the main body 21, first, a first flange portion 44 that extends horizontally from the upper end of the side wall of the outer case 43 that forms the outer shell of the main body 21, and the first flange portion 44. The second flange portion 45 is connected to the side wall of the inner case 37 and extends horizontally. Among them, the first flange portion 44 has a short horizontal portion, and its tip portion is bent upward and is in contact with the second flange portion 45. The horizontal portion of the first flange portion 44 functions as the main holding portion 46, details of which will be described later.

  On the other hand, the second flange portion 45 has a length that extends to the substantially outer peripheral end portion along the back surface of the outer peripheral edge portion of the top plate 22, and its intermediate portion is the top plate 22. A horizontal portion protruding downward is provided, and this horizontal portion functions as the second holding portion 47 that assists the main holding portion 46 described above, the details of which will be described later. However, the horizontal portion as the second holding portion 47 protruding downward is located slightly above the main holding portion 46. The second flange portion 45 is connected and fixed to the top plate 22 with its base side directed to the back surface of the top plate 23 and its tip end addressed via the frame 24. Thus, the outer peripheral edge portion of the top plate 22 is reinforced by the flange portion of the main body 21.

Further, an elastic body 48 made of rubber, a foam member or the like is attached to the peripheral edge of the second flange portion 45, and the thickness (height) of the second flange portion 45 protrudes downward. The thickness of the holding portion 47 and the frame 24 that is the outer peripheral end of the top plate 22 protrudes downward from the lower end of the frame 24 by a predetermined amount.
Therefore, in a state where the outer peripheral edge portion of the top plate 22 is held by the upper surface plate 41 by being dropped from the opening portion 42, the holding portion 46 of the first flange portion 44 is attached to the upper surface plate 41 as shown in FIG. The elastic body 48 is in a state where it is hooked and held and receives pressure due to the weight of the main body 21 and the like, while the elastic body 48 is compressed by a predetermined amount from the natural state and maintained in pressure contact with the upper surface plate 41.

  On the other hand, the second holding portion 47 is located above the original main holding portion 46 and is maintained on the other side by an elastic body 48 that is compressed by a predetermined amount. The lower end portion of the frame 24 that is the outer peripheral end portion is also maintained in a state in which the gap H2 exists with respect to the upper surface plate 41. In this embodiment, the gap H2> H1 is set. For example, the gap H1 is set to 0.5 mm, and the gap H2 is set to 1.0 mm.

  For this reason, in order for the 2nd holding | maintenance part 47 to exhibit the function which supports and hold | maintains the weight of the main body 21 grade | etc., The weight of the pot 49 (it shows with a dashed-two dotted line in FIG. 1) etc. which accommodated the to-be-heated material, for example. A case may be considered in which the elastic body 48 is further compressed by being added to the outer peripheral edge side of the top plate 22 so that the gap H1 disappears and comes into pressure contact with the upper surface plate 41. From this, the outer peripheral end portion of the frame 24 that normally has a gap H2 can also be pressed against the upper surface plate 41 when the elastic body 48 is further compressed in accordance with the weight load in the vicinity of the upper portion. It is possible to function as a third holding unit 50 that supports a part of

  Here, the main design and production dimensions of the present embodiment relating to the drop-in type, which are also necessary in the explanation of the operation described later, will be described with reference to FIG. 1. First, the shape of the opening 42 for dropping the top plate 41 is conventional. In the same manner as described above, the horizontal width dimension Z is set to 560 mm as standard, and the horizontal width dimension Y of the main body 21 is set to 560 mm or less as large as possible, for example, 543 mm. In addition, the same code | symbol is attached | subjected about the same dimension in the same part as the past.

On the other hand, in the present embodiment, for example, the width A of the top plate 22 is set to 750 mm so that the width is increased by about 25% as compared with the prior art, and a pan having a maximum diameter of 300 mm can be arranged on the left and right as cooking containers. In this case, the left and right heating units 28 and 29 are printed and displayed with ring-shaped frames equivalent to the diameter of 300 mm. Therefore, as shown in FIG. 2, if the pans having a diameter of 300 mm (hereinafter also referred to as the maximum diameter K) are arranged on the left and right sides with a necessary interval S of 30 mm at the center, the outer peripheries of each pan and the top plate 22 The left and right dimensions B of the shortest distance to the end are 60 mm, respectively. This shows that it corresponds to the distance from the outer shell of the pan 49 to the outer peripheral end with the same maximum diameter K indicated by the two-dot chain line in FIG.

  Further, the dimension C protruding in the left-right direction from the side wall of the main body 21 of the wide top plate 22 is a distance from the outer case 43 to the outer peripheral end of the top plate 22, and is 103.5 mm in this embodiment. This is a length corresponding to the outer peripheral edge of the top plate 22 and has a dimension substantially equal to the length of the flange portion extending from the main body 21. However, the length dimension D of the first flange part 44 constituting the flange part is 18.5 mm, and is disposed closer to the main body 21 within 1/5 of the dimension C (103.5 mm). is doing. The same can be said for the main holding portion 46, and the main body 21 within at least ½ of the dimension C as shown by the center line U, preferably within ３ as in the present embodiment. It is preferable to arrange in the vicinity.

Next, the operation of the cooking device having the above configuration will be described.
First, in order to incorporate in the kitchen 40, the lateral width dimension Z of the opening 42 of the upper surface plate 41 and the lateral width dimension Y of the main body 21 are in the same numerical relationship (Y <Z) as in the past. In addition, it is possible to easily drop the kitchen 40 by drop-in. The horizontal length D functioning as the holding portion 46 in the first flange portion 44 is not limited to the upper surface plate 41 that is the periphery of the opening, even if the main body 21 is displaced from the center arrangement in the opening 42. The dimensions are set so as to be pressed and held, so that the cooking device is incorporated in a form that is always held by the holding portion 46 and functions as a main holding means.

On the other hand, when cooking with the heating cooker incorporated as described above, since the top plate 22 is wide (750 mm), the top plate 23 can naturally be wide, for example 700 mm or more. Therefore, even if the pans 49 having a maximum diameter of K300 mm are placed on the left and right sides, as disclosed in FIGS. 1 and 2, there is a margin of 60 mm as the dimension B to the left and right ends. It can be used without protruding.

However, when the weight load of the object to be heated and the pan is light, or when using a pan with a small diameter, the weight load is applied to the first flange portion 44 that is in contact with the back side of the top plate 22. In addition, as a result, it is only necessary to add weight to the center side of the top plate 23, and it is sufficient to hold it by the holding portion 46, and the top plate 23 can be used without applying great stress to the outer peripheral edge portion and the like.
However, when the pan 49 with the maximum diameter K is used as described above, there is room on the left and right of the top plate 22 as disclosed in FIG. 1, and the cooking operation can be performed without any problems as a convenience. The outer shell of the pan 49 reaches almost half of the entire flange portion, and its weight load extends beyond the holding portion 46 to the outer side. In this case, in particular, the glass top plate 23 is easily accompanied by a large bending deformation, and such usage causes a great stress.

  However, in this embodiment, when the weight is added to the outer peripheral edge side of the top plate 22 as described above, the elastic body 48 is further compressed, and the second holding portion 47 having the gap H1. However, it comes into pressure contact with the upper surface plate 41 from the outer side. As a result, when a weight load is applied to the object to be heated and the pan 49 that extends to the outer peripheral edge of the top plate 22, the second holding part 47 also supports a part of the weight in addition to the holding part 46 so far. It functions as a holding means, and can use the large-sized pan 49 or the like in a state where stress on the top plate 22 is reduced.

  Furthermore, in a work procedure when cooking, etc., a pan or the like containing the object to be heated may be placed on an appropriate place on the top plate 22, particularly near the outer peripheral end. Various cases are conceivable, such as when the cooking utensil or the like used in the above is temporarily placed on the upper part of the outer peripheral end of the top plate 22. In that case, naturally, the weight load is concentrated on the upper vicinity of the outer peripheral end of the top plate 22 in a concentrated manner.

  In such a case, the elastic body 48 is further compressed, and finally the gap H2 at the outer peripheral end that is the lower end of the frame 24 disappears, and the end is pressed against the upper surface plate 41 to support the weight load, The so-called third holding unit 50 exhibits a holding function. Therefore, in the case where a large weight is added to the top plate 22 which is wide and wider to the side than the outer shell of the main body 21, particularly in the vicinity of the outer peripheral edge portion, in addition to the main holding portion 46, the second holding portion. 47. Furthermore, since it can be held with the assistance of the third holding part 50, the top plate 23 can be provided with an excellent strength that can reduce the stress of the top plate 23 and can withstand long-term use.

The first flange portion 44 that functions as the original main holding portion 46 as the holding means extends from the main body 21 to the side to the outer peripheral end portion of the top plate 2 (the dimension C to the outer peripheral end portion). The first and second holding portions 47 and 50 are sequentially disposed outwardly, and the second and third holding portions 47 and 50 are sequentially disposed outward. The holding function can be strengthened according to the weight added to the top plate 22 and its distribution, and in particular, the outer peripheral edge of the top plate 22 can be reinforced, leading to an increase in overall strength and excellent durability and long-term use. The reliability in doing this can be improved. Further, the elastic body 48 not only enables the holding means by the second and third holding portions 47 and 50 but also prevents the water or liquid that has fallen on the upper surface plate 41 from entering the kitchen 40. It always functions effectively as a water seal member.

As described above, the present embodiment has the following effects.
The above-described drop-in type heating cooker easily drops the main body 21 incorporating the roaster 26, the heating coils 34, 35, etc. into the space of the limited industry standard kitchen 40 as before, from the top plate 41. Can be incorporated into. While maintaining the built-in means, the breadth dimension A of the top plate 22 is greatly increased to enable the use of the pan 49 having an allowable maximum diameter K of 300 mm. Can be used to improve the usability in practical use.

The main holding portion 46 as a drop-in type holding means is close to the main body 21 within at least 1/2 of the distance (substantially equal to the dimension C) from the first flange portion 44 to the outer peripheral end of the top plate 22. It is effectively used as a holding means that suppresses the bending of the top plate 23 on the central side, such as being relatively light weight or having a weight distribution only on the central side, and is used most frequently. It can correspond to. Then, regarding the strength problem and reliability which are concerned when the top plate 22 is wide, the second and third holding portions 47 and 50 are directed to the outside as well as the main holding portion 46. The second and third holding portions 47 and 50 can effectively perform the holding function in accordance with the weight load near the outer peripheral end portion and the distribution thereof.

  Therefore, as the weight moves to the outer peripheral side of the top plate 22, the second and third holding portions 47 and 50 effectively function as holding means that suppresses the bending deformation of the top plate 23, particularly the outer peripheral edge side. Therefore, the large-sized pan 49 having a maximum diameter K of 300 mm can be used without any problem without giving stress due to a large weight load to the top plate 23 in actual use, and reliable over a long period of use. A high cooking device can be provided.

  The present invention is not limited to the embodiment described above and shown in the drawings. For example, the heating means is not limited to the three-port type, and the electric resistance of, for example, a halogen lamp or a sheathed heater is used instead of the heating coil. In addition, the specific shape of the flange portion provided on the main body can be variously changed without departing from the gist of the present invention.

The expanded sectional view of the important section showing one example of the cooking-by-heating machine of the present invention. External perspective view built into the kitchen Front view with major parts broken away 1 equivalent diagram showing a conventional example

Explanation of symbols

In the drawings, 21 is a main body, 22 is a top plate, 23 is a top plate, 24 is a frame, 28, 29 and 30 are heating units, 34 and 35 are heating coils (heating means), 37 is an inner case, and 41 is a top plate. , 42 is an opening, 43 is an outer case, 44 and 45 are first and second flange portions (flange portions), 46 is a holding portion (holding means), and 47 and 50 are second and third holding portions ( Holding means) and 48 are elastic bodies.

Claims (4)

A main body housed in an upper surface plate of a kitchen or the like, heating means disposed in the main body, and a wide top plate provided so as to cover the upper portion of the main body. In what is heated through a cooking container placed on the top plate,
A first flange portion extending laterally from the main body and having a horizontal portion placed on the top plate and holding the main body ;
A second flange located at the top of the first flange portion and extending along the back surface of the outer peripheral edge of the top plate to the outer peripheral end thereof and reaching the back surface of the top plate And comprising
Said first flange portion, said main body while being arranged in the main body side of the within 1/2 of the distance to the peripheral edge of the top plate from the side wall, the distal end portion sites the second was bent above the A cooking device characterized in that it is configured to abut against the flange portion of the cooking device. Having a case with a heating coil as a heating means;
The second flange portion is connected to the case and includes a portion protruding downward at a position outside the first flange portion, and an elastic body is provided on the periphery of the tip portion.
The elastic body is provided in pressure contact with the upper surface plate so that the protruding portion has a gap with the upper surface plate,
When the elastic body is compressed and the gap disappears, the projecting portion comes into contact with an upper surface plate and functions as a second holding portion that holds the top plate and the main body. Item 1. A cooking device according to item 1.   The elastic body is disposed between the second holding portion and the outer peripheral end portion of the top plate, and the outer peripheral end portion of the top plate has a gap with respect to the upper surface plate. Item 3. A cooking device according to item 2. The top plate is composed of a top plate and a frame provided on the outer peripheral end of the top plate,
4. The frame according to claim 3, wherein the frame functions as a third holding portion that holds the top plate on the top plate when the frame is pressed against the top plate by compression of an elastic body. Cooking cooker.

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