JP5121019B2 - Electromagnetic induction heating cooker sheet - Google Patents

Description

  The present invention relates to a sheet for an electromagnetic induction heating cooker that is laid on a top plate of an electromagnetic induction heating cooker and prevents the top plate from being soiled by broth spilled from a container such as a cooking pot.

  As is well known, the electromagnetic induction heating cooker has a coil that generates magnetic lines of force when energized under the top plate, and a metal cooking pan or the like placed on the top plate above the coils by the magnetic lines. An eddy current is generated in a container (hereinafter referred to as a cooking pan), and the pan itself is heated by electric resistance of the pan. However, when the cooking pan is placed directly on the top plate, the cooking is performed. Not only does the heating part, which is the pan bottom mounting surface in the top plate, fouling from the pan, but also the high heat from the cooking pot is directly transmitted to the heating part, so this high heat causes deposits such as boiling juice If it is solidified and fixed on the top plate, it needs to be scraped off with a scraper or other cutting edge to remove it. Ride not there is a possibility of damaging the surface of the top plate.

  For this reason, for example, as described in Patent Document 1, an antifouling sheet made of a synthetic resin sheet having heat resistance capable of covering the entire top plate of an electromagnetic induction heating cooker has been developed. This antifouling sheet is provided with a circular hole in a portion corresponding to the heating part of the electromagnetic induction heating cooker, and the antifouling sheet is placed on the top plate with the heating part of the electromagnetic induction heating cooker exposed from the circular hole. A cooking pan is placed on the heating unit that is laid on the top and exposed from the circular hole, and is configured to perform cooking. Further, in this Patent Document 1, the top plate can be covered with the entire back surface without providing the circular hole, and an adhesive layer is provided on the back surface except for the portion corresponding to the heating portion. There is also disclosed a heat-resistant antifouling sheet that is detachably laid on a top plate through an agent layer.

JP 2004-207121 A

  However, according to the antifouling sheet provided with a circular hole in the part corresponding to the heating part of the electromagnetic induction heating cooker, when the broth spills from the pan during cooking, the broth reaches the bottom of the pan through the pan, While flowing along the outer bottom surface of the pan bottom, a situation of dropping on the heating part exposed from the circular hole occurs, and it is not possible to reliably prevent the top plate from being soiled. Spills directly onto the top plate even when spilled on the outer periphery of the antifouling sheet, but once the spillage can be prevented, the broth diffuses and flows on the mat, part of which is on the circular hole side And the top plate exposed from the circular hole is soiled as described above.

  On the other hand, according to the antifouling sheet configured to cover the entire top plate, unless the antifouling sheet is provided with holes or the like penetrating the front and back surfaces, the top plate is spilled from the cooking pot. The antifouling sheet is provided with an adhesive layer that is releasably pasted on the top plate, except for the portion that covers the heating part of the electromagnetic induction heating cooker. As a result, a thin space surrounded by an adhesive layer is formed between the opposing surfaces of the antifouling sheet and the heating portion, and the air in the space expands due to high heat during cooking, and the expansion pressure is antifouling. It acts intensively as a pressure to push up the sheet portion around the bottom of the pan placed on the sheet.

  In addition, when the antifouling sheet is laid on the top plate, if moisture remains when the top plate is cleaned on the surface of the top plate, the moisture becomes steam due to heating during cooking. The pressure acts on the lower surface of the antifouling sheet together with the expansion pressure of the air, and a part of the adhesive layer is peeled off from the upper surface of the top plate portion around the heating unit, and a part of the air is antifouling from the peeled portion. There is a problem that the antifouling sheet is infiltrated into the lower surface side of the sheet so that a part of the antifouling sheet bulges upward and deforms, and a number of bulges in which air is enclosed in the antifouling sheet are formed, and the appearance is remarkably reduced. there were.

  The present invention has been made in view of the problems as described above, and the purpose of the present invention is to allow the juice to flow from and adhere to the top plate even when boiling is spilled from the pan during cooking. The top plate can be surely prevented and the top plate can be prevented from fouling, and even if the air in the space between the heating portion of the top plate and the sheet portion placed on the heating portion expands due to high heat during cooking An object of the present invention is to provide a sheet for an electromagnetic induction heating cooker in which the air is surely escaped to the outside of the sheet so that the sheet is not swollen.

  In order to achieve the above object, the electromagnetic induction heating cooker sheet of the present invention is formed in a size capable of covering the heating portion of the top plate of the electromagnetic induction heating cooker as described in claim 1. An antifouling mat composed of a heat-resistant synthetic resin sheet, a circular hole having a smaller diameter than the antifouling mat and a larger diameter than the heating portion, and formed so as to be detachably laid on the top plate. A sheet main body made of a synthetic resin film, wherein the lower surface of the outer peripheral portion of the antifouling mat is intermittently fixed in the circumferential direction to the upper surface of the peripheral edge of the circular hole in the sheet main body, and the circular shape between adjacent fixing portions A ventilation gap is formed between the opposing surfaces of the upper surface of the peripheral edge of the hole and the lower surface of the outer periphery of the antifouling mat so that the space in the circular hole communicates with the outside air.

  In the electromagnetic induction heating cooker sheet configured as described above, the invention according to claim 2 is configured such that the lower surface of the outer peripheral portion of the antifouling mat is intermittently fixed in the circumferential direction on the upper surface of the peripheral portion of the circular hole in the sheet body. A ventilation gap formed by the pressure-sensitive adhesive layer between the opposing surfaces of the upper surface of the peripheral edge of the circular hole and the lower surface of the outer periphery of the antifouling mat between adjacent pressure-sensitive adhesive layers is equal to the thickness of the pressure-sensitive adhesive layer It is characterized by providing.

  On the other hand, the invention according to claim 3 is characterized in that the fixing portion in which the lower surface of the outer periphery of the antifouling mat is intermittently fixed in the circumferential direction to the upper surface of the peripheral edge of the circular hole in the sheet body is made of a fused portion or a heat-resistant synthetic resin. Formed between the opposing surfaces of the upper surface of the peripheral edge of the circular hole and the lower surface of the outer periphery of the antifouling mat between adjacent adhering parts due to the air expansion pressure of the space in the circular hole generated during cooking The air gap portion is configured to be expanded.

  Moreover, the invention which concerns on Claim 4 forms a sheet | seat main body with the rectangular-shaped synthetic resin film which can cover the whole top plate of an electromagnetic induction heating cooking appliance, In this sheet | seat main body, several sheets provided in the top plate are provided. It has a structure in which a plurality of circular holes respectively corresponding to the heating parts are provided.

  Furthermore, the invention which concerns on Claim 5 is set as the structure which has stuck the release film on the lower surface of the said sheet | seat main body through the adhesive layer so that peeling was possible.

  According to the electromagnetic induction heating cooker sheet of the present invention, a heat-resistant synthetic resin formed in a size capable of covering the heating portion of the top plate of the electromagnetic induction heating cooker on the circular hole provided in the sheet main body. By stacking antifouling mats made of sheets and intermittently adhering the outer periphery of the lower surface of the antifouling mat to the upper surface of the peripheral edge of the circular hole in the circumferential direction, When the cooking pot is placed on the heating part of the top plate via the antifouling mat and heated and cooked, the bottom surface of the antifouling mat is provided. Even if the expansion pressure of air in the space of the circular hole provided between the upper surfaces of the heating parts of the top plate or the vapor pressure due to the presence of moisture on the heating parts, these pressures are reduced. The seat body upper surface through the section The air can be smoothly and reliably released from the outside air, and there is no risk of generating a bulge that encloses the air by the above-described pressure air sinking into the lower surface of the sheet body that is detachably attached to the top plate, The seat body can always be laid cleanly on the top plate.

  Further, the ventilation gap is provided between the opposing surfaces of the upper surface of the peripheral edge of the circular hole provided in the sheet body and the lower surface of the outer peripheral part of the antifouling mat fixed to the upper surface of the peripheral edge of the circular hole. Since it is covered with the lower surface of the outer peripheral portion of the antifouling mat, it is in a form that opens horizontally along the lower surface toward the upper surface of the sheet body, and is therefore spilled from the cooking pan during cooking. Even if the broth flows down to the upper surface of the outer periphery of the antifouling mat through the cooking pan, there is no risk of flowing into the heating part of the top plate, and even if it diffuses and flows from the antifouling mat to the upper surface of the sheet body The ventilation gap is provided in the horizontal direction, and the upper and lower opening widths thereof have only a very narrow width in a closed state, and when cooking, the bottom surface of the antifouling mat and the top surface of the heating portion of the top plate Formed between That since the inflation pressure of the air is generated in the space portion is not fear that flows into the space through the air space, thus, it is possible to reliably prevent fouling of the top plate by cooking liquid.

  In the invention according to claim 2, the adhesive layer is an adhesive layer in which the peripheral surface of the circular hole provided in the sheet body and the lower surface of the outer periphery of the antifouling mat are intermittently fixed in the circumferential direction. Therefore, the ventilation gap portion has a horizontal opening structure with a vertical opening width equal to the thickness of the pressure-sensitive adhesive layer, and is expanded by air expansion in the space of the circular hole during cooking. The generated pressure air can be smoothly and reliably escaped to the outside through the ventilation gap, and there is no possibility that bulging due to air intrusion occurs on the lower surface of the seat body.

  On the other hand, according to the invention according to claim 3, as the fixing portion, the peripheral upper surface of the circular hole provided in the sheet body and the outer peripheral lower surface of the antifouling mat are intermittently heat-sealed in the circumferential direction. Since the outer periphery of the circular hole forming the air gap and the lower surface of the outer periphery of the antifouling mat are in contact with each other. In the normal state, the air gap is almost closed, but during cooking, the upper and lower opposing surfaces of the air gap are expanded by the air expansion pressure generated in the space in the circular hole, and the air gap is circular. Similarly to the above, the pressure air in the hole can be smoothly and surely released to the outside through this ventilation gap portion, and there is no possibility that bulging due to air intrusion occurs on the lower surface of the seat body.

  Further, as described in claim 4, the sheet main body is formed from a rectangular synthetic resin film that can cover the entire top plate of the electromagnetic induction heating cooker, and is provided on the top plate on the sheet main body. It is preferable that the sheet is for an electromagnetic induction heating cooker provided with a plurality of circular holes respectively corresponding to the plurality of heating portions, and by configuring in this way, the entire upper surface of the top plate is cooked. It is possible to reliably prevent fouling by the broth and the like, and to provide a sheet for an electromagnetic induction heating cooker with good appearance.

  According to the invention of claim 5, since the release film is detachably attached to the lower surface of the sheet main body via the adhesive layer or the adsorption layer, the sheet is released by peeling the release film at the time of use. The main body can be easily attached to the top plate via an adhesive layer or an adsorption layer.

  FIG. 1 is a partially cutaway perspective view of a sheet for an electromagnetic induction heating cooker, FIG. 2 is a cross-sectional view of the main part thereof, and FIG. 3 is an exploded perspective view of a specific embodiment of the present invention. The sheet body 1 is made of a thin, non-breathable soft synthetic resin film having heat resistance, and can cover the top plate 11 of the electromagnetic induction heating cooker 10 almost entirely as shown in FIG. Are formed in a rectangular shape having a thickness, and correspond to each of the circular heating portions 11a serving as the pan bottom mounting portions provided at several places (three places in the figure) on the upper surface (front surface) of the top plate 11. Thus, circular holes 2, 2, and 2 having a diameter larger than that of the heating portion 11a are provided.

  Further, each top hole 11 is closed by the antifouling mat 3 by closing each circular hole 2 of the sheet body 1 with a circular antifouling mat 3 made of a heat-resistant synthetic resin sheet such as silicone resin or fluororesin. The heating unit 11a is covered with the heating part 11a. In addition, as a synthetic resin sheet, the non-breathable sheet | seat formed by heat-pressing the nonwoven fabric which consists of a synthetic resin fiber which has heat resistance, and fuse | melting fibers may be sufficient. In the present invention, “heat resistance” means not melting by heating by the heating unit 11a of the electromagnetic induction heating cooker 10.

  The antifouling mat 3 is formed to have a diameter that is slightly larger than the circular hole 2. The antifouling mat 3 is superposed on the circular hole 2, and the lower surface of the outer peripheral part is overlapped with the adhesive layer 4 such as a double-sided adhesive tape. And the adhesive layer 4 is provided intermittently without being continuous over the entire circumference, and the circular holes are provided between the adhesive layers 4 and 4 adjacent to each other in the circumferential direction. 2 is provided with a ventilation gap 5 that communicates from the space in 2 to the outside (outside air) on the upper surface side of the sheet body 1. That is, the space surrounded by the opposing end surfaces of the adjacent pressure-sensitive adhesive layers 4 and 4 and the peripheral upper surface of the circular hole 2 exposed between these opposing end surfaces and the outer peripheral lower surface of the antifouling mat 3 is vertically moved. The opening width is formed in the ventilation gap 5 equal to the thickness of the pressure-sensitive adhesive layer 4. Note that an adhesive layer may be used instead of the pressure-sensitive adhesive layer 4.

  Further, a release film 7 having the same size and the same shape as that of the sheet body 1 is detachably attached to the lower surface of the sheet body 1 through an adhesive layer 6. The release film 7 is provided with circular holes 8 having the same size and the same shape as the circular holes 2 at portions corresponding to the circular holes 2 provided in the sheet body 1. The lower surface of the sheet main body 1 may be an adsorption layer instead of the adhesive layer 6.

  The adsorption layer is, for example, a foaming agent in a synthetic resin emulsion such as (meth) acrylic acid alkyl ester- (meth) acrylonitrile copolymer emulsion, urethane resin emulsion, acrylic resin emulsion, acrylic-urethane resin emulsion, If necessary, the foamed stabilizer added was stirred and foamed using a mixer or the like, and then applied to the lower surface of the sheet body 1, and the surface of the applied synthetic resin emulsion was removed by a certain thickness. Later, the synthetic resin emulsion can be dried to form.

  This adsorption layer has innumerable bubbles opened on its surface. By pressing the adsorption layer on the top plate of the electromagnetic induction heating cooker, the air in the bubbles is eliminated and the inside of the bubbles is decompressed. The adsorption layer is adsorbed on the top plate, and the battery induction heating cooker sheet can be detachably fixed on the top plate of the electromagnetic induction heating cooker.

  If the adsorption layer as described above is formed on the lower surface of the sheet main body 1, the adsorption layer having innumerable bubbles in the inside functions as a heat insulating layer, and the heat from the top plate of the electromagnetic induction heating cooker is heated by the sheet main body 1. Can be prevented or alleviated, the degree of heat resistance of the synthetic resin film constituting the sheet body 1 can be relaxed, and the room for material selection can be widened. Deformation due to heat can be reliably prevented.

  After the release film 7 is peeled from the lower surface of the sheet body 1, the electromagnetic induction heating cooker sheet thus configured peels on the top plate 11 of the electromagnetic induction heating cooker 10 as shown in FIG. Adhere and lay as possible. At this time, the circular holes 2 of the sheet body 1 corresponding to the respective heating portions 11a in the top plate 11 are covered with the antifouling mat 3 so that the heating portions 11a facing the circular holes 2 are respectively aligned with the heating portions 11a. To the state. In this way, when the electromagnetic induction heating cooker sheet is attached and laid on the top plate 11 of the electromagnetic induction heating cooker 10 via the adhesive layer 6, the antifouling is put in each circular hole 2 of the sheet body 1. A space portion 9 (shown in FIG. 5) is formed between the mating surfaces of the mat 3 and the heating portion 11a of the top plate 11, and the space portion 9 is formed between the pressure-sensitive adhesive layers 4 and 4. It is in a state where it communicates with the outside (outside air) only through.

  The electromagnetic induction heating cooker 10 is also called an IH cooker, and its basic structure has a magnetic force generating coil (not shown) below the top plate 11 made of hard ceramic having excellent impact resistance. The heating unit 11a is provided above the magnetic force generating coil. When a cooking pan 12 (shown in FIG. 5) is placed on the heating unit 11a and the magnetic force generating coil is energized, When the magnetic field lines pass through a cooking pan 12 made of metal such as iron, eddy current is generated, and the pan 12 is heated by the electric resistance of the pan 12.

  The electromagnetic induction heating cooker sheet configured as described above is laid on the top plate 11, and the cooking pot 12 is placed on the antifouling mat 3 in the electromagnetic induction heating cooker sheet. When cooking while cooking, boiled broth blows out from the cooking pan 12 and flows along the surface of the cooking pan 12, and the outer periphery of the heating part 11a of the electromagnetic induction heating cooker 10 from the outer bottom surface of the cooking pan 12 Even if it flows down, the heating part 11a is covered with the antifouling mat 3 in the electromagnetic induction heating cooker sheet, so that the boiled juice does not adhere to the heating part 11a and does not adhere to the upper part of the antifouling mat 3 There is no possibility that the heated portion 11a will be soiled by the boiling water.

  Furthermore, even if cooking broth spills from the cooking pan 12 during cooking and scatters and flows down to the outer periphery of the antifouling mat 3, the top plate 11 is entirely covered with the sheet body 1. It is possible to prevent the boiled juice from staying on the sheet body 1 without adhering and the top plate 11 from being fouled by the boiled juice.

  Moreover, the space part 9 in the circular hole 2 provided in the sheet body 1 has an adjacent pressure-sensitive adhesive layer in which the upper surface of the peripheral edge of the circular hole 2 and the lower surface of the outer periphery of the antifouling mat 3 are intermittently bonded. The air in the space 9 is heated and expanded by the heat transfer from the heated cooking pot 12 because the air is communicated with the outside through the ventilation gap 5 provided between 4 and 4, and further, the top plate 11 Even if an expansion pressure or a vapor pressure is generated due to the evaporation of water such as water drops existing on the top, the pressure can be released to the outside air from the upper surface side of the seat body 1 through the ventilation gap portion 5. It is possible to prevent partial separation of the sheet main body 1 due to the pressure air in the portion 9 and prevent air accumulation or the like from occurring on the back side of the sheet main body 1.

  In the above-described embodiment, the ventilation gap portion 5 that leads to the outside from the space portion 9 in the circular hole 2 provided in the sheet main body 1 includes the upper surface of the peripheral portion of the circular hole 2 and the lower surface of the outer peripheral portion of the antifouling mat 3. Although formed by the adhesive layer 4 that is intermittently bonded, as shown in FIGS. 6 and 7, the lower surface of the outer peripheral portion of the antifouling mat 3 is formed on the upper surface of the peripheral portion of the circular hole 2 in the sheet body 1. Instead of the pressure-sensitive adhesive layer 4, it is integrally fixed via a fusion part 4 ′ and this fusion part 4 ′ is provided intermittently in the circumferential direction so that it is between adjacent fusion parts 4 ′ and 4 ′. A structure may be adopted in which a ventilation gap portion 5 is provided from the inside of the circular hole 2 to the outside on the upper surface side of the sheet body 1, and although not shown, the upper surface of the peripheral portion of the circular hole 2 in the sheet body 1 And the antifouling mat 3 with a fastener such as a heat-resistant synthetic resin stapler. Secured to or formed in advance so as to provide the ventilation air gap 5 between the fastener adjacent. In short, the lower surface of the outer peripheral portion of the antifouling mat 3 is intermittently fixed in the circumferential direction on the upper surface of the peripheral portion of the circular hole 2 in the sheet body 1, and the upper surface of the peripheral portion of the circular hole 2 between adjacent fixed portions A ventilation gap 5 for communicating the space 9 in the circular hole 2 with the outside air may be provided between the opposing surface of the antifouling mat 3 and the lower surface of the outer peripheral portion.

  In addition, when the said fusion | bond part 4 'and a heat-resistant synthetic resin fastener are employ | adopted as the said adhering part, the peripheral part upper surface of the said circular hole 2 between adjacent adhering parts, and the outer peripheral part lower surface of the said antifouling mat 3 However, the air gaps 5 are almost closed, but due to the air expansion pressure of the space 9 in the circular hole 2 generated during cooking, the adjoining surfaces of the air gaps 5 are close to each other. The surface of the peripheral edge of the circular hole 2 and the surface of the outer periphery of the antifouling mat 3 are pressed and expanded so that the air gap 5 is expanded and the pressure air generated in the space 9 is removed from the air gap. It can escape to the outside air through the part 5. What is necessary is just to set the space | interval between the adhering parts adjacent to the circumferential direction suitably. 6 and 7, the release film 7 is not shown, but it is detachably attached to the back surface of the sheet main body 1 in the same manner as in the above embodiment.

  Next, in the said Example, although the sheet | seat main body 1 is formed in the magnitude | size which can coat | cover substantially the whole top plate 11 of the electromagnetic induction heating cooking appliance 10, the said one provided in the top plate 11 is provided. You may comprise so that it may lay on the heating part 11a.

  FIG. 8 and FIG. 9 show an embodiment, and a flat rectangular heat-resistant plate having a size capable of covering the entire periphery of one heating portion 11a in the top plate 11 of the electromagnetic induction heating cooker 10. A circular hole 2 'having a slightly larger diameter than the heating portion 11a is provided at the center of the sheet main body 1' made of a soft synthetic resin film having properties. The heating unit 11a in the top plate 11 is covered with the antifouling mat 3 ′ by closing it with a circular antifouling mat 3 ′ made of a synthetic resin sheet having heat resistance such as resin.

  The antifouling mat 3 ′ is formed with a diameter that is slightly larger than the circular hole 2 ′ in the same manner as in the above-described embodiment. The adhesive layer 4 is integrally fixed to the upper surface of the peripheral edge of the circular hole 2 ', and the adhesive layer 4 is provided intermittently without being continuous over the entire circumference, and between the adhesive layers 4 and 4 adjacent in the circumferential direction. In addition, a ventilation gap portion 5 that communicates from the space in the circular hole 2 ′ to the outside (outside air) on the upper surface side of the sheet main body 1 ′ is provided. A release film 7 ′ having the same size and shape as the sheet body 1 ′ is detachably attached via the layer 6. The release film 7 ′ is provided with circular holes 8 ′ having the same size and the same shape as the circular holes 2 ′ at portions corresponding to the circular holes 2 ′ provided in the sheet main body 1 ′. In place of the pressure-sensitive adhesive layer 4, a fused part 4 ′ or a heat-resistant synthetic resin fastener may be employed as described above.

  The electromagnetic induction heating cooker sheet thus configured covers the desired heating portion 11a in the top plate 11 of the electromagnetic induction heating cooker 10 after peeling off the release film 7 ′ adhered to the back surface thereof. Thus, the heating part 11a is prevented from being soiled by the broth that is attached and laid out and blows out from the cooking pot during cooking. About a specific effect, since it is the same as that of the sheet | seat for electromagnetic induction heating cooking appliances shown in the said FIGS. 1-5, the description is abbreviate | omitted.

The partial notch perspective view of the sheet | seat for electromagnetic induction heating cooking appliances. Sectional drawing of the principal part. FIG. The simplified perspective view of the state laid on the top plate. The expanded vertical front view of the principal part in the state which has mounted the cooking pan. The perspective view which shows the modification of the sheet | seat for electromagnetic induction heating cooking appliances. Sectional drawing of the principal part. The disassembled perspective view which shows another Example of this invention. The longitudinal front view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet | seat body 2 Circular hole 3 Antifouling mat 4 Adhesive layer 5 Ventilation space part 6 Adhesive layer 7 Release film 9 Space part
10 Electromagnetic induction heating cooker
11 Top plate
11a Heating part
12 Cooking pan

Claims (5)

  An antifouling mat comprising a heat-resistant synthetic resin sheet formed in a size capable of covering the heating portion of the top plate of the electromagnetic induction heating cooker, and having a smaller diameter than the antifouling mat and a larger diameter than the heating portion. And a sheet body made of a synthetic resin film formed so as to be detachably laid on the top plate. The antifouling mat is formed on the upper surface of the peripheral edge of the circular hole in the sheet body. A space portion in the circular hole is fixed between the adjacent upper surface of the peripheral edge of the circular hole and the lower surface of the outer periphery of the antifouling mat. A sheet for an electromagnetic induction heating cooker, characterized in that a ventilation gap portion is provided for communicating with the outside air.   An adhering portion for intermittently adhering the lower surface of the outer periphery of the antifouling mat in the circumferential direction to the upper surface of the peripheral edge of the circular hole in the sheet body is composed of an adhesive layer, and the upper surface of the peripheral edge of the circular hole between the adjacent adhesive layers 2. The electromagnetic induction heating cooker sheet according to claim 1, wherein a ventilation gap portion equal to the thickness of the pressure-sensitive adhesive layer is provided between a surface opposite to the lower surface of the outer periphery of the antifouling mat.   The fixing part that intermittently fixes the lower surface of the outer periphery of the antifouling mat in the circumferential direction to the upper surface of the peripheral edge of the circular hole in the sheet body is formed from a fused part or a heat-resistant synthetic resin fastener and occurs during cooking The air gap formed between the opposing surfaces of the upper surface of the peripheral edge of the circular hole and the lower surface of the outer periphery of the antifouling mat between adjacent adhering portions is expanded by the air expansion pressure of the space in the circular hole. It is comprised so that it may be made. The sheet | seat for electromagnetic induction heating cooking appliances of Claim 1 characterized by the above-mentioned.   The sheet body is made of a rectangular synthetic resin film that can cover the entire top plate of the electromagnetic induction heating cooker, and the sheet body has a plurality of circular holes respectively corresponding to a plurality of heating portions provided on the top plate. The electromagnetic induction heating cooker sheet according to claim 1, wherein the sheet is provided.   The electromagnetic induction heating cooker sheet according to claim 1 or 2, wherein a release film is detachably attached to the lower surface of the sheet main body through an adhesive layer or an adsorption layer.

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