JP2005308296A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize a frame body covering an outer peripheral edge part of a top plate by reducing a height dimension projecting from an upper face plate of a kitchen or the like, while improving the strength of the top plate. <P>SOLUTION: In this heating cooker performing the heating through a cooking container placed on the top plate 22, a reinforcement plate 23 is applied, adhered and fixed to a lower face of a peripheral edge of the top plate 22, and connected with and fixed to an inner case 14 at a main body 12 side, thus the frame body is adhered and fixed to an upper face of a peripheral edge part of the top plate 22 in a state of covering its edge part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

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 an induction heating cooker using an induction heating coil as a heating means, for example, many are used by being incorporated in a kitchen or the like, and a drop-in type (drop-down type) is generally used as the incorporation means. Has been adopted. The built-in means drops the cooker main body from a rectangular opening formed on the upper surface plate of a kitchen or the like, supports the flange portion at the top of the main body so as to be hooked on the periphery of the opening, and the heating means incorporated in the main body. First, it supports the weight of the roaster function, control unit, and cooling fan device. The top plate, which is provided so as to cover the upper surface of the main body and is wider than the opening, is also supported on the periphery of the opening of the upper surface plate via a support frame attached to the outer periphery. (For example, refer to Patent Document 1).

  For example, a description will be given with reference to FIG. 6 showing a general example of this type. In this example, the main body 2 dropped from the opening 1a of the upper surface plate 1 of a kitchen or the like is supported so that a flange portion 2a that is integrally formed at the upper end thereof and extends outward is hooked on the periphery of the opening. . An inner box 4 having a heating means 3 is provided in the main body 2, and is fastened to a mounting bracket 6 a of the support frame 6 with a screw 7 via a fixing bracket 5 connected to an upper end portion of the inner box 4. It is fixed. The support frame 6 is fixed to the outer peripheral end portion of the top plate 8 covering the upper surface of the main body 2 with an adhesive 9 to conceal the end portion and the fastening portion of the screw 7 and is placed on the top plate 8 in use. It is set as the structure which supports the load of cooking containers, such as the pot 10 used.

However, the top plate 8 protrudes upward from the upper surface plate 1 of the kitchen, and the height H of the support frame 6 provided at the outer peripheral end of the top plate 8 further includes a fastening portion such as a mounting bracket 6a. At the same time, the width W is increased and the entire size is increased. However, since the support frame 6 does not directly participate in the heating means, the effective space of the upper surface of the top plate 8 and the upper surface plate 1 is narrowed, so a rather compact shape is preferable. In particular, the height H is a problem in that a level difference is generated between the support frame 6 and the top plate 1 that also functions as a cooking table. If this level difference is large, the cooking container such as the pan 10 is moved. In such cases, the contents may be spilled due to a fall or a large tilted impact, or by bumping, which is not preferable from the viewpoint of safety and safety.
JP 2003-151739 A

Therefore, in order to reduce the height H and the lateral width W of the support frame 6, the mounting bracket 6a must be reduced and the joint portion with the top plate 8 must be reduced. There is concern about the shortage, and in particular, the top plate 8 itself has a structure that is easily bent and made of a heat-resistant glass material, so that it is impossible to further reduce the size of the support frame 6.
Therefore, for example, in Patent Document 1, a special corner plate disposed at the front corner of the back surface of the support frame is used to suppress the bending deformation of the top plate more than necessary. In addition, there is a tendency to increase the size of the entire support frame, such as by incorporating a corner plate that requires heat treatment. Moreover, the top plate is prevented from being bent locally at the front corner, and the strength is not necessarily sufficient.

  In order to solve the above-described problems, an object of the present invention is to provide an easy-to-use cooking device with a reduced height and the like while increasing the overall strength of the top plate.

  In order to achieve the above object, a heating cooker of the present invention covers a main body accommodated and supported in an opening of an upper plate such as a kitchen, heating means disposed in the main body, and an upper portion of the main body. And the top plate is heated via a cooking vessel placed on the top plate. The top plate has an upper surface at its peripheral end. The frame body is bonded and fixed to cover the end portion, and a reinforcing plate is attached and fixed to the lower peripheral surface of the frame, and a sealing material is interposed between the upper plate and the peripheral portion of the reinforcing plate. Further, the main feature is that the inner portion is connected and fixed to the main body.

  According to the heating cooker of the present invention, since the reinforcing plate is provided on the lower peripheral surface of the top plate, the deformation of the top plate is suppressed against the load of a cooking container such as a pan placed on the top plate. Enough strength can be obtained to support, while the frame can be reduced in size without receiving a load like conventional support frames, and the frame and reinforcing plate are bonded and fixed, so there is no space for fixing. Can be minimized. Therefore, the height difference between the frame and the top plate after installation can be made as small as possible, and the pan can be greatly tilted by this step to reduce the fear of spilling contents or hitting the pan, improving usability. . In addition, since a unit assembly (so-called unitization) in which a frame body and a reinforcing plate are bonded and fixed to the top plate in advance can be formed, a peripheral portion of the unit assembly, so-called when an assembly operation or the like is carried or moved. Even if the left and right edges that are reinforced with the reinforcing plate are lifted, the top plate can be lifted easily without significant deflection, and cooking that can be expected to have practical effects such as improved handling during movement, etc. Can be provided.

(First embodiment)
First, a description will be given with reference to FIGS. 1 to 3 showing a first embodiment of the present invention.
FIG. 2 is a cross-sectional view showing an overall configuration in which the cooking device of the present invention is incorporated in a kitchen. As shown in the drawing, an opening 11a for storing a cooking device is formed in the top plate 11 of the kitchen. And the cooker main body 12 is dropped in the opening part 11a, and the flange part 13a extended in the horizontal direction of the upper end part is hooked and supported by the opening periphery. The main body 12 has a rectangular box shape whose upper surface is opened by a magnetic steel plate material, and an outer box 13 having the flange portion 13a formed at the upper end portion, and a shallow rectangular box shape housed in the inner upper portion thereof. An inner box 14 is provided, and the inner box 14 is integrally coupled with a screw on the front side (not shown) of the outer box 13.

  The inner box 14 is formed of a non-magnetic metal plate (for example, an aluminum plate), and a first induction heating coil 15 serving as a heating means and a second induction heating coil 16 having different heating outputs are disposed therein. In addition, although generally not shown, a so-called three-necked heating cooker equipped with a heating means including a spiral nichrome wire heater is widely used. For convenience of explanation, the first and second inductions are used here. A description will be given of a two-way cooking device provided with heating coils 15 and 16. The first and second induction heating coils 15 and 16 are supported by a rod 17 and a coil base 18 and are located in the vicinity of the upper opening and disposed at a predetermined distance from a top plate 22 described later.

  Further, in the inner lower part of the outer box 13 below the inner box 14, although not described in detail, a roaster unit 19 is provided with a sheathed heater as a heating means on the left side for cooking pottery, and a control for controlling each heating means on the right side A so-called control means 20 provided with a circuit board, a frequency conversion device, other cooling fan devices, and the like is disposed, and an operation unit having a dial for setting various cooking conditions, not shown, is provided on the front surface thereof. ing.

  Thus, the top plate assembly 21 is attached above the main body 12 incorporating a plurality of heating means. Although the details will be described later, the top plate assembly 21 is attached so as to cover a rectangular plate-shaped top plate 22, a reinforcing plate 23 bonded to the lower peripheral lower surface of the top plate 22, and an outer peripheral end portion thereof. The top plate assembly 21 is connected and fixed to the upper end of the inner box 14 of the main body 12 as described later. In addition, a ring-shaped sealing material 25 made of an elastic cushion is interposed between the opposing surfaces of the peripheral lower surface of the assembled top plate assembly 21 and the peripheral edge of the opening 11 a of the upper surface plate 11, Accordingly, the top plate assembly 21 is water-tightly attached on the upper surface plate 11.

  Next, a specific configuration of the top plate assembly 21 and specific mounting means on the upper side of the main body 12 will be described with reference to an enlarged view of the main part shown in FIG. 1 and an exploded perspective view of the main part shown in FIG. . First, the top plate 22 is made of heat-resistant tempered glass having a flat surface, has a property of transmitting red visible light well, and has an upper surface that is colored, opaque, for example, black. The shape is larger than the opening 11a of the upper surface plate 11, and generally has a rectangular plate shape with a width of 600 to 750 mm, a length of 400 to 440 mm, and a thickness of about 4 mm. The structure is easy to bend.

  In order to increase the mechanical strength of the top plate 22, the reinforcing plate 23 is applied to the lower surface side of the top plate 22 and is bonded and fixed with an adhesive 26 (for example, silicon adhesive). Yes. As shown in FIG. 3, the reinforcing plate 23 is formed in a rectangular frame shape, and is joined to the top plate 22 with a predetermined surface width of the frame shape, and is continuous around the surface. A concave groove 27 is formed. Further, in the present embodiment, the top plate is formed on the surface surrounded by the bent portions 28a, 28b, 28b which are bent upward from the front and left and right sides of the outer peripheral end portion. 22 positioning and assembling work is facilitated. A part of each of the bent portions 28a, 28b, 28b is cut out to form a plurality of cutout pieces 29 having the same shape bent downward, and the internal rectangular opening 30 is formed in the body 12. The size of the upper opening of the inner box 14 is substantially the same.

Thus, the adhesive 26 is firmly fixed by being applied so as to fill the concave groove 27 and joining the top plate 22. As described above, the concave groove 27 functions as an adhesive reservoir and increases the strength of the reinforcing plate 23 itself, but does not prevent the groove shape from being partially discontinuous.
Further, on the upper surface of the peripheral end portion of the top plate 22, the same adhesive 26 as described above is applied to join the rectangular frame-shaped frame body 24 described above, and the outer peripheral end portions of the reinforcing plate 23 and the top plate 22 are connected. It is attached and fixed so as to hide it. When this adhesive is fixed, positioning is facilitated by placing the inner surface of the frame body 24 along the outer surface of the notch piece 29.

  The top plate assembly 21 thus configured is incorporated above the main body 12 housed and supported by the upper surface plate 11 of the kitchen. As a specific means, in the present embodiment, coupling pieces 31 bent downward are projected at four locations around the opening 30 of the reinforcing plate 23, and the coupling pieces 31 are projected on the inner wall of the inner box 14 of the main body 12. It joins to the upper end and is fastened and fixed with screws 32. By this fastening, the sealing material 25 interposed between the reinforcing plate 23 and the upper surface plate 11 is maintained in a compressed pressure contact state, and from this time, the water-tightness to prevent intrusion to the main body 12 side is ensured. In this state, the lower end of the frame body 24 is in contact with or close to the upper surface plate 11 and is not particularly configured to receive or support a load.

  In addition, on the upper surface of the top plate 22, a ring-shaped mark is printed and displayed at a location corresponding to each heating means (not shown), and the cooking container such as the pan 33 shown in FIG. 2 is effectively heated. The placement area is shown. Therefore, when using the cooking device of the present invention, the pan 33 containing the object to be heated is placed on the mark of the desired heating means on the top plate 22, and when the power is turned on, the frequency converter and control circuit For example, a high frequency current is supplied to the first induction heating coil 15 via the control means 20 such as a substrate, and the pan 33 itself is heated by induction heating to perform cooking.

As described above, according to this embodiment, the following operational effects are obtained.
The main body 12 incorporating the heating means such as the first and second induction heating coils 15, 16, the roaster section 19, the control means 20, etc. is dropped from the opening 11 a of the top plate 11, and the flange of the outer box 13. The portion 13a is hooked to the periphery of the opening 11a and is supported in its stored state. At this time, the weight of the main body 12 is also supported. On the other hand, a load of a cooking container such as a pan 33 placed on the upper surface of the top plate 22 is applied to the top plate assembly 21 attached to the top of the main body 12.

  However, the reinforcing plate 23 that is attached to the lower surface of the peripheral edge of the top plate 22 and is bonded and fixed is joined with a predetermined frame width, so that the top plate 22 is generally strengthened from the lower surface side. Therefore, the top plate 22 which is easy to bend is not greatly deformed or broken, and stress due to load can be reduced. In addition, in this embodiment, the concave grooves 27 provided on the joint surface of the reinforcing plate 23 not only function as an adhesive reservoir, but also increase the strength of the reinforcing plate 23 itself, so that a further sufficient strength is ensured. The Further, since the concave groove 27 functions as an adhesive reservoir, there is no concern that the adhesive will be insufficient or the excess will protrude, and reliable and strong adhesive fixation can be expected.

  Furthermore, when the top plate 22 is transported or carried, it is used as the top plate assembly 21 or at least in a so-called unit form in which a reinforcing plate 23 is bonded and fixed to the top plate 22, so that the top plate is particularly flexible in the longitudinal direction. The deformation of 22 can be suppressed, for example, it can be easily carried by placing both hands on the left and right ends, and the handleability is also good.

  Thus, the top plate 22 receiving the load such as the pan 33 can cope with the thin shape of the reinforcing reinforcing plate 23 joined to the lower surface side, and the frame body 24 attached to the upper surface side supports other members. The reinforcing plate 23 and the frame 24 are both means for adhering and fixing to the top plate 22, so that the assembly workability is excellent with a simple configuration. Therefore, the frame body 24 may have a shape or configuration suitable for covering the outer peripheral ends of the top plate 22 and the reinforcing plate 23. As shown in FIG. Both widths W can be reduced, which is extremely effective for downsizing.

  As a result, the level difference between the frame body 24 and the top plate 11 can be made as small as possible, and the cooking container such as the pan 33 is greatly inclined or the contents are spilled due to the impact at the time of tilting. It can be reduced, and it can be prevented from colliding with the stepped portion when it is lifted and moved on the upper surface plate 11, so that cooking work in the kitchen is easy. In addition to the simple structure, the frame 24 can be reduced in height H and width H, which is advantageous in terms of cost and narrows the space effective for cooking the top plate 22 or the top plate 11. It is also effective in that there is nothing.

(Second Embodiment)
4 and 5 show a second embodiment of the present invention. FIG. 4 is an exploded perspective view of the main part, and FIG. 5 is a sectional view of the main part. A description will be omitted with reference numerals, and different points will be described.
This is different from the above embodiment in that the reinforcing plate 34 also has a function of a magnetic shield. As a configuration for that purpose, the reinforcing plate 34 has a rectangular flat plate shape made of aluminum which is a nonmagnetic metal material, is concentric with the first and second induction heating coils 15 and 16 serving as heating means, and has a circular shape. Through holes 35 and 36 are formed.

  The hole portions 35 and 36 are located slightly above the first and second induction heating coils 15 and 16 and are set to have dimensions (strictly, slightly larger in diameter) substantially equal to the outer circumference (diameter) thereof. Therefore, on the top plate 22 corresponding to the holes 35 and 36, a mark (not shown) for placing the cooking container having a larger diameter than this is printed and displayed. Further, bent portions 37a and 37b, 37b formed in the same manner as in the above embodiment and a plurality of cutout pieces 38 are formed at the outer peripheral end of the reinforcing plate 34.

  The top plate assembly 39 formed by adhering and fixing the frame 24 and the reinforcing plate 34 to the top plate 22 is the same as in the above embodiment, and the reinforcing plate 34 and the inner box. As a means for connecting and fixing to 14, a part of the flat surface of the reinforcing plate 34 is cut and raised and bent downward by molding to form a plurality of hanging coupling pieces 40. The coupling piece 40 is provided so as to hang down at a position where it is joined to the four surfaces of the inner peripheral wall of the inner box 14, and the coupling piece 40 is inserted into the inner box 14 from above and joined together. It is connected and fixed by screwing (not shown).

  Thus, the nonmagnetic metal reinforcing plate 34 functions as a magnetic shielding plate from the first and second induction heating coils 15 and 16 to the cooking container, that is, concentrates the magnetic flux through the holes 35 and 36. It can be used to heat cooking efficiently while suppressing magnetic flux leakage. Of course, the reinforcing plate 34 can be joined to a wide flat surface to further increase the strength of the top plate 22, and it can be easily carried, and the small size of the frame 24 can be minimized by suppressing the protruding height and width. For example, the same effects as described in the above embodiment can be obtained.

  The present invention is not limited to the embodiment described above and shown in the drawings. For example, one heating means may be used, and not only the induction heating coil but also a halogen heater can be used. In addition, although the reinforcing plate is connected to the inner box of the main body, for example, a configuration in which the reinforcing plate is connected and fixed to the outer box can be easily deployed, and further, the above embodiments may be appropriately combined and implemented. Various modifications can be made without departing from the scope of the present invention.

The expanded sectional view of the important section showing the 1st example of the cooking-by-heating machine of the present invention. Sectional drawing which shows the schematic structure integrated in the kitchen Main part exploded perspective view The exploded perspective view of the important section showing the 2nd example of the present invention. Cross section of the main part Sectional view of the main part showing a conventional example

Explanation of symbols

In the drawings, 11 is a top plate (kitchen), 12 is a main body, 13 is an outer box, 14 is an inner box, 15 and 16 are first and second induction heating coils (heating means), and 21 and 39 are top plate sets. Solid, 22 is a top plate, 23 and 34 are reinforcing plates, 24 is a frame, 26 is an adhesive, 27 is a groove, 33 is a pan (cooking container), and 35 and 36 are holes.

Claims (3)

A main body accommodated and supported in an opening of an upper surface plate of a kitchen, etc., heating means disposed in the main body, and a top plate provided so as to cover the upper portion of the main body. In what is heated through a cooking vessel placed on the top plate,
On the top plate, a frame body is bonded and fixed to the upper surface of the peripheral end portion so as to cover the end portion, and a reinforcing plate is attached and fixed to the peripheral lower surface of the top plate, and at the peripheral portion of the reinforcing plate, A heating cooker characterized in that a sealing material is interposed between the upper surface plate and the main body is connected and fixed at an inner portion thereof.   The cooking device according to claim 1, wherein the reinforcing plate has a groove on a surface to be bonded and fixed to the top plate. 2. The cooking device according to claim 1, wherein an induction heating coil is used as the heating means, and the reinforcing plate has a through hole that is substantially equal to the outer periphery of the induction heating coil.

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