JP4761960B2 - Gas hot plate - Google Patents

Description

  The present invention relates to a gas hot plate used for grilled meat and teppanyaki, and more particularly to a gas hot plate having a cassette gas cylinder. More specifically, the present invention relates to a gas hot plate capable of lowering the temperature of exhaust gas so as not to pose a risk of burns or the like to a person who cooks such as grilled meat or teppanyaki.

  A gas hot plate, particularly a gas hot plate having a cassette gas cylinder, is widely used for cooking yakiniku and teppanyaki dishes at home and in camping. In this type of gas hot plate, as shown in FIG. 7, generally, a plate receiver 3 is engaged with an upper portion of a main body 2 composed of a box with a bottom, and a plate 1 is placed on the plate holder 3 via a virtues or the like. The fuel is supplied to the gas burner 5 located below the plate 1 from, for example, a cassette gas cylinder (not shown), and the plate 1 is heated by the flame 6. Further, in this type of gas hot plate, a heat shield 4 is installed between the plate receiver 3 and the bottom plate 7 of the main body 2, and the heat from the flame 6 and the plate 1 heated by the flame 6 is heated in the main body 2. Prevents transmission to the bottom side.

  When cooking a teppanyaki dish using a gas hot plate of the above type, the upper side of the gas burner 5 is covered with the plate 1, so that the exhaust of the flame 6 is exhausted from the peripheral edge 8 of the plate 1 and the plate receiver. 3 is discharged from a gap formed between the upper edge portions 9. For example, when the plate is baked for about 5 minutes, the temperature of the exhaust gas discharged from this gap is high temperature of 200 to 250 ° C., so it blows out toward the cook who cooks on the plate. There is a risk of exposure to this hot exhaust gas.

  In order to solve such a problem, for example, Japanese Patent Application Laid-Open No. H10-260260 has means for ensuring the safety of a person who performs iron plate baking by making the exhaust port of the exhaust cover of the iron plate baking device face the iron plate side (plate side). It is disclosed. Further, Patent Document 2 discloses a proposal in which the peripheral edge of the plate and the upper edge of the plate receiver are brought into close contact with each other on the side where the claws are provided, and a gap is provided in other portions.

Japanese Patent Application Laid-Open No. 2004-3292423 ACT 6-72534

  However, the means disclosed in Patent Document 1 merely directs the direction of the exhaust gas toward the iron plate (plate), and does not decrease the temperature of the exhaust gas itself. Therefore, there is a danger that the cook may be exposed to the hot air blown from the exhaust cover when trying to take the food on the iron plate (plate) with chopsticks or the like. On the other hand, the means disclosed in Patent Document 2 is effective for releasing the gas on the side of the hand that adjusts the opening of the gas burner, but on the other side, the hot gas is inserted between the periphery of the plate and the plate receiver. Has been released, and the safety of the cook is not sufficiently maintained.

  When cooking teppanyaki dishes using a gas hot plate, the present invention reduces the temperature of exhaust gas emitted from the periphery of the plate or the like toward the cook, ensuring the safety of the cook The purpose is to propose a gas hot plate where you can enjoy yakiniku dishes.

  The present inventor indicated that the temperature of the exhaust gas discharged from the peripheral edge of the conventional gas hot plate is high because the gas used to heat the plate is released as it is from the gap between the hot plate and the plate receiver. I grasped the fact that it was to be done. In order to lower the temperature, the exhaust gas is once led to the exhaust gas introduction part, and while exhausting the cold air from the lower part of the exhaust gas introduction part, the exhaust gas temperature is exhausted from the upper part by the chimney effect together with this cold air. Was found to be significantly reduced.

That is, the gas hot plate according to the present invention includes a gas hot plate main body in which a heat shielding plate is arranged in a central region of the bottom, and is engaged with an upper end portion of the main body, and includes an engaging portion for the main body on the outer peripheral side, It has a donut shape in which the central part is a space, and has a plate receiver formed on a ring-shaped part having a flat inner peripheral side , and a plate placed on the ring-shaped part of the plate receiver via five virtues, In the gas hot plate in which the plate is heated from the lower surface by a gas burner disposed in the main body, and the exhaust gas is discharged from a gap formed between the peripheral edge of the plate and the upper edge of the plate receiver , the heat shielding plate with up to the side edges in proximity to the ring-shaped bottom face of the plate receiving form the exhaust gas guide section, the exhaust gas guide section, the plate receiving the bottom and inner side row of body A space surrounded by the inner bottom surface as well as an exhaust gas introducing portion, the cold air inlet hole in the lower part of the exhaust gas inlet, it forms a top to the exhaust hole, with cold air the exhaust gas introduced into the exhaust gas inlet portion The sheet is discharged into a gap formed between the peripheral edge of the plate and the upper edge of the plate receiver .

  In the above invention, the exhaust gas introduction part may be formed on two opposite side surfaces of the main body, and the exhaust hole formed in the upper part of the exhaust gas introduction part is an upper surface of the peripheral part of the plate receiver It can be formed in a row. Furthermore, the cold air introduction holes formed in the bottom part of the exhaust gas introduction part may be formed in a row along the side edge of the bottom surface of the main body. Further, in the above invention, the axis of the flame hole of the gas burner is formed so that the flame extends in the longitudinal direction of the hot plate, and the exhaust gas introduction part is a longitudinal end of the hot plate. It is preferable that they are formed at both end portions.

  According to the present invention, when cooking a teppanyaki dish using a gas hot plate, the temperature of exhaust gas released from the periphery of the plate or the like toward the cook can be reduced, ensuring the safety of the cook. You can enjoy Yakiniku dishes comfortably. In addition, according to the present invention, it is possible to prevent the exhaust gas from staying inside the main body, thereby significantly suppressing the temperature rise on the bottom surface of the main body, and reducing the size and weight of the gas hot plate main body. Became possible.

  FIG. 1 is a schematic cross-sectional view showing a typical configuration of a gas hot plate according to the present invention, and FIG. 2 is an explanatory diagram of a flow state of exhaust gas in the gas hot plate according to the present invention. As shown in FIG. 1, in the gas hot plate of the present invention, a heat shielding plate 4 is disposed on the bottom plate 7 of the main body 2, and a gas burner 5 is installed on the heat shielding plate 4. The gas burner 5 is supplied with fuel gas directly from a cassette gas cylinder (not shown) set in the cassette cylinder housing 12 or via a pressure regulator (not shown), and is ignited by the ignition device 10. Is supposed to burn.

  On the upper edge of the main body 2, a so-called donut-shaped plate receiver 3 having a space at the center is locked, and a virgin 15 is attached to the plate receiver 3. The plate 1 can be detachably set on the plate receiver 3 through the five virtues 15. The gas hot plate is usually provided with a cooking lid 11.

  In the present invention, in the gas hot plate configured as described above, the peripheral edge portion of the heat shielding plate 4 rises obliquely outward to form the exhaust gas guide portion 41. The outer peripheral portion 42 at the tip of the guide portion 41 is relatively narrow, for example, a gap X of 4 to 6 mm is provided close to the bottom surface 31 of the plate receiver 3 and the gas combustion chamber 20 and the exhaust gas introduction portion 21 (this) Are described later). Therefore, gas flows from the gas combustion chamber 20 to the exhaust gas introduction part 21 through the gap X.

  On the other hand, as shown in FIG. 4, the plate receiver 3 is provided with an engaging portion 32 for the main body 2 on the outer peripheral side thereof, and has a so-called donut shape as a whole with a space at the center. The inner peripheral side is a flat ring-shaped portion 34 on which the virtues 5 can be fixed. Furthermore, as described above, the peripheral edge of the guide portion 41 rising from the bottom portion of the heat shielding plate 4 is close to the lower surface of the ring-shaped portion.

  Therefore, in the gas hot plate of the present invention, with the plate 1 set, the guide portion 41 and the plate receiver 3 formed by raising the side edge of the heat shielding plate 4 and the inner side surface and inner bottom surface of the main body 2 are formed. A space surrounded by is formed. This space will be referred to as an exhaust gas introduction portion 21 in accordance with the flow of exhaust gas described later with reference to FIG. A cold air introduction hole 13 is formed in the lower part of the exhaust gas introduction part 21, and an exhaust hole 14 is formed in the upper part. In this example, the cold air introduction holes 13 are formed in a row along the side edge of the bottom plate 7 of the main body 2, while the exhaust holes 14 are formed in a row on the upper surface of the peripheral edge of the plate receiver 3. Yes.

  When the plate 1 is set on the gas hot plate configured as described above, and fuel is supplied to the burner 5 to ignite, the plate 1 is heated by the flame 6 and the combustion gas, and grilled meat dishes and the like become possible. In this state, the exhaust gas filled in the combustion chamber 20 is guided from the combustion chamber 20 through the guide portion 41 to the exhaust gas introduction portion 21 through the gap 22 (path B), as shown in FIG. It mixes with the cold air (path C) sucked from the cold air introduction hole 13 and is diffused into the atmosphere from the exhaust hole 14 by the chimney effect.

  In this case, the exhaust gas discharged from the conventional gap between the plate 1 and the plate receiver 3 (through the path A) is smaller than the amount discharged from the exhaust hole 14 through the exhaust gas introducing portion 21. This is because, due to the chimney effect, the exhaust gas guided to the exhaust gas introduction unit 21 is strongly diffused into the atmosphere from the exhaust hole 14.

  In order to make the above action more reliable, as shown in FIG. 5, the axis 17 of the flame hole 16 of the gas burner 5 is formed so that the flame 6 extends in the longitudinal direction of the hot plate, and the exhaust gas introduction part 21 is hot. It is good to form in the both ends of the main body corresponding to the longitudinal direction edge part of a plate. In this way, the flame 6 extending from the flame hole 16 of the gas burner can uniformly heat the plate 1 in the longitudinal direction, and the combustion gas is surely passed from the combustion chamber 20 via the guide portion 41 and the gap 22. As a result, the exhaust gas can be guided to the exhaust gas introduction unit 21.

  As shown in FIG. 6, the grilled meat dish was prepared using a gas hot plate having a calorific value of 2000 kcal / h having a basic configuration shown in FIG. 1 and a plate having a width of 360 mm and a depth of 300 mm. At that time, the exhaust gas temperature was measured at measurement points A, B, C, and D shown in FIG. The measurement point A is at a position 5 mm above the upper edge of the plate receiver at the center in the width direction of the gas hot plate, and the measurement point B is at a position 1/4 of the gas hot plate in the width direction. The position from the upper edge of the receiver is the same as the measurement point A. Further, the measurement points C and D are respectively located at the center in the depth direction and the position in the depth direction 1/4 of the gas hot plate, and both are located at a position 5 mm from the upper edge of the plate receiver. For comparison, the same temperature measurement was performed using a conventional gas hot plate (size and calorific value is the same as in the present invention) shown in FIG. The temperature measurement results are as shown in Table 1. It can be seen that the exhaust temperature is reduced by about 50 ° C. according to the present invention, and the danger and discomfort during cooking are eliminated.

  In the above embodiment, the gap X between the outer peripheral portion 42 of the exhaust gas guide portion 41 formed by raising the side edge portion of the heat shield plate and approaching the plate receiving bottom surface and the plate receiving bottom surface was 4 mm. . On the other hand, in the conventional example, the side edge portion of the heat shielding plate and the bottom surface of the plate receiving plate are not close to each other, so that the exhaust gas introduction portion is not formed, and the upper and lower portions of the exhaust gas introduction portion are closed. Met.

It is a schematic cross section which shows the structure of the gas hot plate which concerns on this invention. It is explanatory drawing of the flow state of the waste gas by this invention. It is a top view used for the present invention. It is an AA arrow sectional view of the principal part of the plate receiver shown in FIG. It is BB sectional drawing of the gas hot plate shown in FIG. It is a schematic explanatory drawing which shows the measurement position of the exhaust gas temperature by this invention. It is explanatory drawing of the schematic structure of the conventional gas hotplate, and the flow state of the waste gas.

Explanation of symbols

1: Plate
2: Body
3: Plate holder
4: Thermal shield
5: Gas burner
6: Flame
7: Bottom plate
8: Bottom edge (of plate)
9: Upper edge (of plate holder)
10: Ignition device
11: Lid
12: Cassette gas cylinder housing
13: Cold air introduction hole
14: Exhaust hole
15: Gotoku
16: Flame hole
17: Axis (of the flamehole)
20: Gas combustion chamber
21: Exhaust gas introduction part
31: Bottom of plate holder
32: Engagement part
41: Guide section
42: Outer peripheral part (at the tip of the guide part 41)

Claims (5)

The main body of the gas hot plate with a heat shield plate in the center area of the bottom, and the doughnut shape that is locked to the upper end of the main body and has an engaging part for the main body on the outer peripheral side, with the central part being a space A plate receiver formed on a ring-shaped portion having a flat inner peripheral side , and a plate placed on the ring-shaped portion of the plate receiver via five virtues, and the plate is disposed by a gas burner disposed in the main body. In the gas hot plate that is heated from the lower surface and exhaust gas is discharged from the gap formed between the peripheral edge of the plate and the upper edge of the plate receiver ,
To form the exhaust gas guide section launched a side edge portion is close to the ring-shaped bottom face of the plate receiving of the heat shield plate, the exhaust gas guide portion, by the inner side surfaces and the inner bottom surface of the plate receiving the bottom and a body with the space surrounded by the exhaust gas introducing portion, the cold air inlet hole in the lower part of the exhaust gas inlet, Ri Na to form an upper exhaust hole, the exhaust gas introduced into the exhaust gas inlet portion with cold plate A gas hot plate characterized by being discharged into a gap formed between a peripheral edge and an upper edge of the plate receiver .   The gas hot plate according to claim 1, wherein the exhaust gas introduction part is formed on two opposite side surfaces of the main body.   The gas hot plate according to claim 1 or 2, wherein the exhaust holes formed in the upper part of the exhaust gas introduction part are formed in a row on the upper surface of the peripheral part of the plate receiver. The gas hot according to any one of claims 1 to 3, wherein the cold air introduction holes formed at the bottom of the exhaust gas introduction part are formed in a line along the side edge of the bottom surface of the main body. plate.   The axis of the flame hole of the gas burner is formed so that the flame extends in the longitudinal direction of the hot plate, and the exhaust gas introduction part is formed at both end portions of the main body corresponding to the longitudinal end portion of the hot plate. The gas hot plate according to any one of claims 1 to 4, wherein:

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