JP4095657B1 - Cooking container for heating - Google Patents

Abstract

An object of the present invention is to provide a cooking container for heating whose thermal efficiency can be remarkably improved as compared with the prior art.
A plurality of projecting plates (8) each projecting radially in the circumferential direction while being curved around a central region (ER) of a bottom portion (5) of a container body (2) are provided. It is possible to easily heat the projection plate 8 by guiding the flame flowing to the side 6 or heated air along the projection plate 8 to the side surface 6 of the container body 2. As a result, the heating area is increased by the protruding plate 8 and the thermal conductivity can be improved by that amount, and thus the thermal efficiency can be remarkably improved as compared with the prior art.
[Selection] Figure 1

Description

  The present invention relates to a cooking container for heating, and is suitable for application to a cooking container for heating heated directly by a flame of a gas stove, for example.

Conventionally, when cooking a food by using a gas stove, the food is put into a bottomed cylindrical container body, and the container body is heated directly by heating the container body directly against the flame of the gas stove. Cooking containers are used (see, for example, Patent Document 1).
JP 2004-89634 A

  However, in the cooking container for heating having such a configuration, the flame of the gas stove is simply received by the bottom portion formed in a flat shape, and the remaining flame and the heated air out of the flame received at the bottom portion are stored in the container. Since it flows along the side surface from the bottom of the main body, there is a problem that the thermal efficiency is low. Therefore, it is desired to improve thermal efficiency in such a cooking container for heating.

  Then, this invention is made | formed in view of the above-mentioned problem, and intends to provide the cooking container for heating which can improve thermal efficiency markedly from the past.

In order to achieve the above object, the invention according to claim 1 is provided with a container body having a bottomed cylindrical shape, and in a heating cooking container in which the bottom outer surface of the container body is heated, on the bottom outer surface of the container body. Is provided in the circumferential direction, and has a plurality of protrusions that are radially formed around the central region of the bottom of the container body to increase the heating area, and the container body includes an upper layer, a lower layer, and the upper layer And an inner layer between the lower layers, and the inner layer includes a carbon fiber standing layer in which carbon fibers erected in a comb shape with respect to the lower layer are provided in a heat storage material, and the lower layer The heat is transferred to the upper layer along the longitudinal direction of the carbon fiber .

  Further, in the invention according to claim 2, when viewed from the bottom portion, each of the protrusions is formed so as to be gently curved in the clockwise direction from the central region of the bottom portion and extend to the outer peripheral side of the bottom portion. It is characterized by.

Further, in the invention according to claim 3 , the inner layer is provided with a heat storage layer made of the heat storage material between the upper layer and the tip of the carbon fiber, and the lower layer along the longitudinal direction of the carbon fiber. The heat transmitted from is stored in the heat storage layer .

According to the cooking container for heating according to claim 1 of the present invention, when the bottom part of the container body is heated directly by heating by providing a plurality of protrusions that are radially formed so as to be curved, Since the flame and heated air flowing to the side surface are guided to the side surface of the container body along the protruding portion, the protruding portion can be easily heated, and thus the heating area is increased by the protruding portion and the thermal conductivity is increased. And the thermal efficiency can be remarkably improved than before.
In addition, by providing a carbon fiber standing layer in which carbon fibers having high thermal conductivity are erected in a comb-like shape with respect to the lower layer, heat transmitted from the lower layer of the bottom portion of the carbon fiber erected in a comb-like shape is provided. It becomes easy to be transmitted to the upper layer along the longitudinal direction, and the thermal conductivity to the upper layer can be further improved.

  According to the cooking container for heating according to claim 2, from the central region side to the outer peripheral side, generally corresponding to the clockwise force acting by Coriolis force etc. on the flow from the center to the outward direction. By forming the protrusion so that it curves gently in the clockwise direction, the direct fire and heated air that flows to the side of the container body can easily flow along the protrusion, and the protrusion is easily heated. Can be made.

Moreover, according to the cooking container for heating according to claim 3 , carbon provided upright in a comb shape by providing a heat storage layer made of a heat storage material having a high heat storage property between the upper layer and the tip of the carbon fiber. The heat transmitted from the lower layer along the longitudinal direction of the fiber is stored in the heat storage layer, so that the heat storage property can be further improved and the thermal efficiency can be improved.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

(1) Whole structure of cooking container for heating In FIG. 1 (A), (B) and (C), 1 shows the cooking container for heating by this invention, this cooking container 1 for heating is the container main body 2 and radiation heat absorption. The radiant heat absorption cover 3 is detachably provided on a flange 4 that is configured along the periphery of the opening of the container body. Hereinafter, each of the container body 2 and the radiant heat absorption cover 3 will be described in detail.

(2) Configuration of Container Body As shown in FIGS. 2 (A) and 2 (B), the container body 2 has a bottomed cylindrical shape, and the opening 2a and the bottom 5 are formed in a substantially circular shape and formed in a flat shape. The handle portion 7 is provided at a predetermined position of the side surface 6 formed integrally with the outer periphery 5a of the bottom portion 5.

  In addition to such a configuration, a flame flow control unit 9 including a plurality of rib-like projecting plates 8 having the same configuration is provided on the bottom outer surface 5b of the container body 2. The protruding plates 8 are provided radially at predetermined intervals along the circumferential direction of the bottom 5 of the container body 2.

  As shown in FIGS. 3 (A) and 3 (B), the protruding plate 8 has a strip shape with a rectangular cross section and a predetermined plate thickness t, and is bent in one direction from one end to the other end. It has a shape curved in a substantially semicircular shape.

  In the case of this embodiment, the protruding plate 8 is made of, for example, copper, aluminum, stainless steel or the like, and has a predetermined pattern on the bottom outer surface 5b of the container body 2 by welding or the like as shown in FIGS. 2 (A) and 2 (B). And can protrude from the bottom outer surface 5b by a thickness t. Although the plurality of protruding plates 8 are formed to protrude, for example, even when the container body 2 is placed on the gas stove via the protruding plate 8, the container body 2 can be stably placed on the five victories. Are arranged as follows.

  In practice, each of the plurality of protruding plates 8 is disposed at one end at a predetermined interval in the central region ER of the bottom portion 5 and around the other end on the outer periphery 5a of the bottom portion 5 at a predetermined interval. It can be formed to extend along with it. Each protruding plate 8 is curved gently from the center region ER of the bottom portion 5 toward the clockwise direction CW (FIG. 2B) when viewed from the bottom portion 5 of the container body 2, and on the outer peripheral 5a side of the bottom portion 5. It can be formed to extend.

  Incidentally, in the case of this embodiment, four protruding plates 8 are provided on the bottom 5 of the container body 2, and these protruding plates 8 are regularly arranged by being shifted by 90 degrees in the circumferential direction. A flow path 5c provided from the central region ER to the outer periphery 5a can be formed uniformly in the bottom portion 5.

  In addition to such a structure, the container body 2 provided with the protruding plate 8 includes an upper layer 11 and a lower layer 12 made of, for example, copper, aluminum, stainless steel, and the like, as shown in FIG. And an inner layer 13 disposed on the substrate.

  Incidentally, in the case of this embodiment, the lower layer 12 has a configuration in which a heat absorption layer 42a made of a carbon fiber material woven from carbon fiber yarns is bonded on the outer surface, and can improve thermal conductivity. Yes. An endothermic layer made of a carbon fiber woven with such carbon fiber yarns may be provided on the outer surface of the projection plate 8, and in this case, the thermal conductivity is also improved in the projection portion 8. Can do.

  Here, the inner layer 13 is composed of a heat storage material having a high heat storage property such as heat-resistant plastic, ceramics, or ceramic, and a carbon fiber 14 having a high heat conductivity such as a carbon fiber, and stands in a comb-like shape with respect to the lower layer 12. The provided carbon fiber 14 has a carbon fiber standing layer 15 provided in the heat storage material.

  Thereby, the inner layer 13 is configured such that when the lower layer 12 of the bottom 5 is heated, the heat of the lower layer 12 is easily transmitted to the upper layer 11 along the longitudinal direction of the carbon fibers 14 erected in a comb-like shape. Yes. Thus, the inner layer 13 has a high heat storage property due to the heat storage material, and can be improved in thermal conductivity by the carbon fibers 14 erected on the lower layer 12.

  Further, in the inner layer 13, a slight gap is provided between the upper layer 11 and the tip of the carbon fiber 14, and a heat storage layer 16 made of only a heat storage material having a high heat storage property is formed in the gap. As a result, the inner layer 13 can improve the heat storage performance in the vicinity of the upper layer 12 by the heat storage layer 16.

(3) Configuration of Radiant Heat Absorbing Cover The radiant heat absorbing cover 3 shown in FIG. 1 includes a cover body 30 and a plurality (ten in this figure) of holding portions 31 as attachment means, and the holding portions 31 are bolts. 32 and a nut 33 are detachably fixed to the cover body 30. The cover main body 30 is configured by two pairs of cover portions 34 and 35 formed in a semicircular shape along the outer periphery of the container main body 2.

  As shown in FIG. 4, the cover body 30 has an L-shaped cross section, and includes a horizontal upper side 40 formed at one end and a side side 41 that hangs substantially perpendicularly from the upper side 40. The cover body 30 has a two-layer structure including an endothermic layer 42 and a holding layer 43. The endothermic layer 42 forms an inner surface of the cover body 30, and the holding layer 43 forms an outer surface of the cover body 30. is doing. The endothermic layer 42 is formed of a carbon fiber fabric. The carbon fiber fabric is formed by weaving carbon fiber yarns. The holding layer 43 is made of a metal plate member having a low thermal conductivity, and is formed of, for example, a titanium alloy or a heat-resistant plastic plate. The holding layer 43 is formed by appropriately pressing a plate member having a thickness of about 1 mm.

  The pair of cover portions 34 and 35 have the same configuration. As shown in FIG. 5, the cover portion 34 (35) has a side 41 formed in a semicircular shape in accordance with the outer peripheral shape of the container body 2, and an upper side 40 projecting inward from one end of the side 41. It becomes. A plurality of mounting holes 45 and exhaust ports 46 are alternately provided on the side 41 of the cover 34 (35) (10 locations in the figure). The exhaust ports 46 are provided on the upper end side of the side edge 41 and are arranged evenly along the outer periphery.

  As shown in FIG. 6, the sandwiching portion 31 is formed in an angle shape with spring steel, and includes an attachment side 48 and a sandwiching side 49 projecting perpendicularly from one end of the attachment side 48. A bolt insertion hole 50 is provided in the mounting side 48 corresponding to the mounting hole 45 formed in the side side 41 of the cover portions 34 and 35.

  The sandwiching part 31 configured as described above is configured such that the sandwiching side 49 is overlapped with the upper side 40 of the cover part 34, 35 while the attachment side 48 is along the outer surface of the side part 41 of the cover part 34, 35. Then, the bolt insertion hole 50 is aligned with the mounting hole 45 formed in the side 41 of the cover portions 34 and 35. Next, the bolt 32 is inserted from the bolt insertion hole 50, and the nut 33 is screwed from the tip of the bolt 32 from the inside of the cover portions 34, 35, so that the holding side 31 is fixed to the cover portions 34, 35. In this way, the radiant heat absorption cover 3 has the holding portions 31 attached to the cover portions 34 and 35, respectively.

  Thus, the container body 2 is configured to absorb the heat of the flame flowing in the side surface direction of the container body 2 or the heat of the heated air by the radiant heat absorption cover 3 and heat the container body 2 with the heat. Thereby, the cooking container 1 for heating can improve thermal efficiency markedly compared with the past.

(4) Operation and Effect Next, the operation and effect of the container body 2 configured as described above will be described. In the cooking container 1 for heating, when used for cooking, food is put in the container body 2 and the bottom 5 of the container body 2 is heated directly by a flame of a gas stove, for example.

  At this time, the cooking container 1 for heating is provided with a plurality of projecting plates 8 that are radially projected toward the circumferential direction while being curved around the central region ER of the bottom 5 of the container body 2. The projection plate 8 can be easily heated by guiding the flame or heated air flowing toward the side surface 6 of the container body 2 to the side surface 6 of the container body 2 along the projection plate 8.

  Therefore, in the cooking container 1 for heating, the heating area is increased by the protruding plate 8 and the thermal conductivity can be improved accordingly, and thus the thermal efficiency can be remarkably improved as compared with the conventional case.

  By the way, generally, for the flow from the center to the outward direction, there is a tendency that a force acts in the clockwise direction CW due to Coriolis force or the like in the northern hemisphere. Accordingly, in the cooking container for heating 1, the projection plate 8 is directed in the clockwise direction CW from the central region ER side to the outer periphery 5 a side when viewed from the bottom 5 in response to such a force acting in the clockwise direction CW. It was formed to be gently curved. Thereby, in the cooking container 1 for heating, the flame and the heated air which flow from the bottom part 5 of the container body 2 to the side surface 6 side easily flow along the curved protruding plate 8, and the protruding plate 8 can be easily heated. Can do.

  Further, in the case of this embodiment, in the heating cooking container 1, the vicinity of the other end of the protruding plate 8 is formed so as to extend along the outer periphery 5 a of the bottom portion 5, and a part of the outer periphery 5 a of the bottom portion 5 is formed at the other end. By making it surround, it can prevent by the projection plate 8 that the flame from the bottom part 5 or the heated air flows into the side surface 6 side of the container main body 2 directly, and can improve the thermal efficiency in the bottom part 5 in this way. .

  Furthermore, in the case of this embodiment, in the cooking container 1 for heating, the protruding plates 8 are regularly arranged, and the radial flow paths 5c from the central region ER toward the outer periphery 5a are uniformly formed in the bottom portion 5. Thus, the flame or heated air from the bottom 5 can be uniformly spread over the entire bottom 5 of the container body 2 by the flow path 5c, and the bottom 5 of the container body 2 can be heated evenly.

  Further, in the container body 2, a carbon fiber standing layer in which carbon fibers 14 having high thermal conductivity are erected in a comb-like shape with respect to the lower layer 12 in the heat storage material of the inner layer 13 between the upper layer 11 and the lower layer 12. By providing 15, the heat transmitted from the lower layer 12 of the bottom 5 is easily transmitted to the upper layer 11 along the longitudinal direction of the carbon fibers 14 erected in a comb-like shape, and the thermal conductivity to the upper layer 12 is further improved. be able to.

  Further, in the container body 2, the carbon fiber 14 erected in a comb-teeth shape by providing the heat storage layer 16 made of a heat storage material having a high heat storage property between the upper layer 11 and the tip of the carbon fiber 14 in the inner layer 13. The heat transmitted from the lower layer 12 along the longitudinal direction is stored in the heat storage layer 16 to further improve the heat storage property, and the thermal efficiency can be remarkably improved as compared with the conventional case.

(5) Other Embodiments The present invention is not limited to the present embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, the protruding plate 8 as a protruding portion is provided. Not only the bottom part 5 of the container body 2 but also the side part 6 may be extended as it is, and the central region ER may have various shapes and sizes.

  Moreover, in embodiment mentioned above, although the case where the cooking container 1 for heating in which the bottom part 5 of the container main body 2 was formed planarly was described, this invention is not restricted to this, As shown in FIG. In addition, the cooking container 22 for heating formed so that the bottom 21 of the container body 20 is slightly recessed toward the center may be applied.

  In this case, as shown in FIG. 8 in which parts corresponding to those in FIG. 4 are denoted by the same reference numerals, the bottom 21 of the container body 20 has an angle θ from the outer periphery 5a of the bottom 21 of the container body 20 toward the center of the bottom 21. Since the central portion is recessed, the flame H can be prevented from flowing toward the side surface 6 of the container body 20 when the flame H is applied to the center portion of the bottom portion 21, and thus the container body 20 can be efficiently heated.

  Note that, similarly to the above-described embodiment, in order to improve thermal conductivity, a heat absorbing layer 42a made of a carbon fiber material woven from carbon fiber yarns may be bonded onto the outer surface of the lower layer 12.

  Further, in the above-described embodiment, the case where the belt-like protruding plate 8 made of a plate material is applied as the protruding portion is described. However, the present invention is not limited to this, and the bottom portion 5 of the container body 2 is pressed. Thus, the bottom 5 itself may be processed into a concavo-convex shape, and the convex portion may be applied as a protrusion.

  Furthermore, in the above-described embodiment, the case where the protruding plate 8 is formed so as to be gently curved in the clockwise direction CW from the central region ER side to the outer periphery 5a side as viewed from the bottom portion 5 has been described. The present invention is not limited to this, and the protruding plate 8 may be formed so as to be gently curved in the counterclockwise direction CW from the central region ER side to the outer periphery 5a side when viewed from the bottom 5.

(6) Example Next, the heating cooking container 1 by this invention was made into the Example, and the conventional heating cooking container was made into the comparative example, and each verification test was done about the tendency of a temperature rise.

  Here, as a comparative example, as shown in FIG. 9 (A), a heating cooking container 26 composed of a simple bottomed container body 25 was used. On the other hand, as an embodiment, as shown in FIG. 9 (B), a projection plate 8 and a radiant heat absorption cover 3 are provided, and a container body 27 having the same structure as a conventional container body 25 and the center of the bottom portion 28 is provided. The cooking container 29 for heating according to the present invention having a recessed portion was used.

  In this case, as shown in FIG. 10, in Example, it was confirmed that the temperature increase rate was good compared to the comparative example, and there was a difference in temperature increase of about 20% to 30%. As described above, it was confirmed that the thermal efficiency was significantly improved in the example as compared with the conventional comparative example.

It is a figure which shows the whole structure of the cooking container for a heating which concerns on this embodiment, (A) Top view, (B) Front view, (C) Bottom view. It is a figure which shows the structure of a container main body same as the above, (A) A longitudinal cross-sectional view, (B) A bottom view. It is a figure which shows the structure of a projection board same as the above, (A) Top view, (B) Side view. It is a fragmentary sectional view which shows the structure of the cooking container for a heating same as the above. It is a figure which shows the structure of a cover part same as the above, (A) Front view, (B) Side view. It is a figure which shows the structure of a holding part same as the above, (A) Front view, (B) Side view. It is a longitudinal cross-sectional view which shows the cross-sectional structure of the cooking container for a heating by a modification. It is a longitudinal cross-sectional view which shows the detailed cross-sectional structure of the cooking container for heating by deformation amount. It is a figure which shows an Example, (A) A comparative example, (B) It is a figure which shows an Example. It is a graph which shows an experimental result same as the above.

Explanation of symbols

1 Cooking container for heating 2 Container body 5 Bottom
5a Bottom outer surface 8 Projection plate (projection)
11 Upper layer
12 Lower layer
13 Inner layer
14 Carbon fiber
16 Thermal storage layer

Claims (3)

In a cooking container for heating provided with a container main body having a bottomed cylindrical shape, the bottom outer surface of the container main body being heated,
Wherein the outer bottom surface of the container body, is arranged in the circumferential direction, with a plurality of projections that increase the heat area formed projecting radially around the central area of the bottom of the container body,
The container body is composed of an upper layer, a lower layer, and an inner layer between the upper layer and the lower layer, and the inner layer includes carbon fibers erected in a comb shape with respect to the lower layer in a heat storage material. A cooking container for heating , comprising: a carbon fiber standing layer provided on the upper side, wherein the heat of the lower layer is transmitted to the upper layer along a longitudinal direction of the carbon fiber . Each of the protrusions is formed so as to be gently curved in the clockwise direction from the center region of the bottom portion and viewed from the bottom portion so as to extend to the outer peripheral side of the bottom portion. The cooking container for heating as described. The inner layer is provided with a heat storage layer made of the heat storage material between the upper layer and the tip of the carbon fiber, and heat transmitted from the lower layer along the longitudinal direction of the carbon fiber is the heat storage layer. The cooking container for heating according to claim 1 or 2, wherein heat is stored .

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