Roasting pan and roasting pan set

Abstract

To provide a roasting pan that is easy for users to use. [Solution] The present invention relates to a ceramic roasting pan comprising a main body 2 and a handle 3. The main body 2 has a bottom 21, a body 22 that, together with the bottom 21, defines an internal space 2a of the main body 2, and a circular inclined opening 23 formed at the top of the body 22 and connecting the internal space 2a to the outside. The handle 3 protrudes laterally from a portion of the body 22 below the inclined opening 23. A communication passage 3a is formed within the handle 3. The center C23 of the inclined opening 23 is located closer to the handle 3 than the central axis A21 of the bottom 21. The inclined opening 23 is formed so that a distal edge 231, located farther from the handle 3, is positioned higher than a proximal edge 232, located closer to the handle 3.

Description

[Technical Field]

[0001] The present invention relates to a roasting pan and a roasting pan set. [Background technology]

[0002] A roasting pan is a ceramic cooking utensil used to roast food such as tea leaves, sesame seeds, salt, or coffee beans. For example, a user can make roasted green tea by placing tea leaves in the roasting pan and roasting them. Roasting pans are also used as tea utensils. A roasting pan has a hemispherical main body with an opening and a handle protruding from the main body. The handle is the part that the user holds and is formed in a cylindrical shape. The inside of the handle is connected to the inside of the main body, and roasted tea leaves, coffee beans, etc. can be dispensed from the opening at the tip of the handle.

[0003] However, ceramics such as roasting pans often cannot be used with induction heating (IH). Therefore, as disclosed in Japanese Patent Application Laid-Open No. 2022-51096, a heater that can properly heat ceramics and the like with IH has been developed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-51096 Summary of the Invention [Problem to be solved by the invention]

[0005] The structure of the conventional roasting pan leaves room for improvement when using the above-mentioned heater on an induction cooktop. The purpose of this invention is to provide a roasting pan that is easy for users to use, and a roasting pan set that includes a roasting pan and a heater. [Means for solving the problem]

[0006] The roasting pan of the present invention is a ceramic roasting pan comprising a main body and a handle, the main body having a disk-shaped bottom, a hollow hemispherical body protruding upward from the outer edge of the bottom and forming an internal space of the main body together with the bottom, and a circular inclined opening formed at the top of the body and connecting the internal space to the outside, the handle protruding laterally from a portion of the body below the inclined opening, a communication passage formed within the handle extending from the base end to the tip end of the handle and connecting the internal space to the outside, the center of the inclined opening being located closer to the handle than the central axis of the bottom, and the outer edge of the inclined opening being positioned higher than the adjacent edge close to the handle. A notch recessed downward is formed in the side wall of the heater. [Effects of the Invention]

[0007] With the roasting pan of this invention, the inclined opening is tilted toward the user (handle side), making it easy for the user to check the food inside. Since the user can check the roasting progress of the food through the inclined opening, there is no need to raise or lower the roasting pan, which is particularly convenient for induction cooking. Furthermore, when measuring the temperature of the food inside with an infrared thermometer, the inclined opening makes it easier to direct the infrared rays toward the food, improving convenience. With the roasting pan set of this invention, the user can set the roasting pan on the heater without the handle of the roasting pan interfering with the side wall of the heater. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a conceptual diagram (left side view) showing the configuration of a roasting pan according to the present embodiment. [Figure 2] 1 is a conceptual diagram (plan view) showing the configuration of a roasting pan according to the present embodiment. [Figure 3] 1 is a conceptual diagram (bottom view) showing the configuration of a roasting pan according to the present embodiment. FIG. [Figure 4] FIG. 2 is a perspective view showing the roasting pan of the present embodiment placed upside down. [Figure 5] 1 is a conceptual diagram (front view) showing the configuration of a roasting pan set according to the present embodiment. FIG. [Figure 6] FIG. 2 is a conceptual diagram (plan view) showing the main body of the heater (excluding the notched portion). [Figure 7] FIG. 2 is a conceptual perspective view for explaining each part of the main body of the heater of the present embodiment. [Figure 8] FIG. 1 is a perspective view showing a roasting pan set according to an embodiment of the present invention (excluding a heating plate). [Figure 9] FIG. 1 is a perspective view showing a roasting pan according to an embodiment of the present invention. [Figure 10] FIG. 10 is a conceptual diagram (left side view) showing a modified roasting pan of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] The following detailed description of a roasting pan 1 and a roasting pan set 100, which are one embodiment of the present invention, will be given with reference to the accompanying drawings. In addition to the following examples, the present invention can be implemented in various forms with various modifications and improvements based on the knowledge of those skilled in the art. The embodiment will be described based on the state in which the roasting pan is placed when in use, i.e., with the bottom surface facing downwards. The protruding direction of the handle portion 3 is defined as the forward direction, and the direction perpendicular to the front-to-back direction and the up-to-down direction is defined as the left-to-right direction.

[0010] The roasting pan 1 of this embodiment is made of unglazed ceramic (which can also be considered heat-resistant pottery) and, as shown in Figures 1 and 2, comprises a main body 2 and a handle 3. The main body 2 is the portion into which food to be cooked is placed. The main body 2 comprises a bottom surface 21, a trunk 22, and an inclined opening 23. The bottom surface 21 is formed in a disk shape.

[0011] The body 22 is a portion that protrudes upward from the outer edge of the bottom surface 21, and together with the bottom surface 21 forms the internal space 2a of the main body 2. The body 22 is formed in a hollow hemispherical shape as a whole. The internal space 2a is the portion surrounded by the bottom surface 21 and the body 22.

[0012] The inclined opening 23 is a circular through-hole formed in the upper part of the body 22. The inclined opening 23 connects the internal space 2a to the outside. A user can put cooking objects such as tea leaves into the internal space 2a through the inclined opening 23.

[0013] The handle portion 3 is the handle portion (grip portion) of the roasting pan 1 and protrudes laterally (forward) from the body 22. The handle portion 3 protrudes from a portion of the body 22 below the inclined opening 23. The handle portion 3 is formed in a cylindrical shape (which can also be described as a hose shape). The handle portion 3 of this embodiment can also be described as extending axially (straight).

[0014] A communication passage 3a is formed inside the handle portion 3, extending from the base end 31 to the tip end 32 of the handle portion 3 and connecting the internal space 2a to the outside. One end of the communication passage 3a opens to the internal space 2a at the base end 31, and the other end opens to the outside at the tip end 32. An opening connected to the communication passage 3a is formed in the body 22. The communication passage 3a extends along the shape of the handle portion 3, i.e., in an axial manner. The user can take out tea leaves, etc., cooked in the internal space 2a of the main body portion 2 through the communication passage 3a in the handle portion 3.

[0015] The handle portion 3 is slightly inclined so that it is positioned higher (more forward) from the base end 31 to the tip end 32. The inclination angle of the handle portion 3 with respect to the horizontal plane is greater than 0 degrees and equal to or less than 30 degrees. Figure 9 shows a perspective view of one configuration of this embodiment.

[0016] (First characteristic structure) As a first characteristic structure of this embodiment, the center C23 of the inclined opening 23 (the center position of the circular shape) is located closer to the handle 3 than the central axis A21 of the disk-shaped bottom surface 21. In other words, the position of the inclined opening 23 is offset toward the handle 3 (forward) from the center of the main body 2. This structure is also referred to as an offset structure. Generally, in conventional configurations, the center C23 of the inclined opening 23 is located on the central axis A21 of the bottom surface 21. However, the roasting pan 1 of this embodiment has an offset structure.

[0017] The inclined opening 23 is formed such that, of its outer edge, a distal edge 231, which is farther from the handle portion 3, is located higher than a proximal edge 232, which is closer to the handle portion 3. In other words, the distance between the bottom surface 21 and the distal edge 231 is greater than the distance between the bottom surface 21 and the proximal edge 232. As a result, the inclined opening 23 opens so as to be inclined forward. The distal edge 231 is located at the upper end of the body 22. The proximal edge 232 is located adjacent to and above the base end 31 of the handle portion 3. The distal edge 231 can also be said to be the edge of the outer edge of the inclined opening 23 that is closer to the central axis A21 of the bottom surface 21. For example, if a virtual line that is perpendicular to a virtual plane including the entire circumference of the edge of the inclined opening 23 and passes through the center C23 of the inclined opening 23 is called the opening center axis A23, then the opening center axis A23 can also be said to be inclined toward the handle portion 3 with respect to the center axis of the bottom surface 21 (main body portion 2).

[0018] When cooking using an induction heating (IH) plate (induction cooker), unlike fire, if the cooking utensil is moved away from the IH plate, the induction will stop functioning. Therefore, when cooking with an IH plate, the cooking utensil is often left in place without being turned upside down. Generally, users cook with the handle portion 3 facing forward. However, with the offset structure of this embodiment, the inclined opening 23 is inclined toward the user, making it easier for the user to check the food being cooked in the interior space 2a. Because the user can check the roasting progress of the food through the inclined opening 23, there is no need to move the roasting pan 1 up and down, which is advantageous for IH cooking.

[0019] Furthermore, when roasting food in roasting pan 1, the temperature of the food or internal space 2a is important. For this reason, an infrared thermometer (non-contact thermometer) is generally used. When measuring the temperature of the food being cooked in internal space 2a with such an infrared thermometer, the tilted opening 23 is tilted forward, making it easier to direct infrared rays at the food being cooked.

[0020] (Second characteristic structure) 1 and 3, a second characteristic structure of this embodiment is that a planar auxiliary bottom surface 311 is formed at the base end portion 31 of the handle portion 3 and is connected to the bottom surface 21. In other words, a part of the base end portion 31 of the handle portion 3 is formed in a planar shape so as to be connected to the bottom surface 21.

[0021] This allows the roasting pan 1 to be placed more stably on a flat surface. In the roasting pan 1, the handle 3 may be longer than the diameter of the main body 2. Furthermore, because the handle 3 protrudes from the main body 2 at a slight incline, the center of gravity of the roasting pan 1 is likely to be located at the front of the main body 2. Therefore, due to its structure, if the roasting pan 1 were to tip over when placed on a flat surface, it is likely to fall on the front side. IH cooktops and kitchen areas are often flat.

[0022] However, in this embodiment, the auxiliary bottom surface 311 is formed below the base end 31 of the handle 3, so that the roasting pan 1 is less likely to tip over when placed on a flat surface. This configuration improves the stability of the roasting pan 1 when placed on a flat surface.

[0023] (Third characteristic structure) As shown in Figures 1 and 2, as a third characteristic structure of this embodiment, a first support portion (corresponding to "support portion") 41 that protrudes upward is formed at the upper end of the main body portion 2. The left-right width of the first support portion 41 is greater than the left-right width of the tip portion 32 of the handle portion 3. The first support portion 41 is formed adjacent to the far edge portion 231 and extends along the far edge portion 231. The tip surface (protruding end surface) of the first support portion 41 forms the upper end surface of the main body portion 2. The tip surface of the first support portion 41 is configured to be located on a single plane. The left-right width of the tip surface of the first support portion 41 is greater than the left-right width of the tip portion 32 of the handle portion 3. The tip surface is the part that abuts against the installation surface when the roasting pan 1 is placed upside down. When viewing the roasting pan 1 from the front (front), the left end of the tip surface of the first support part 41 is located to the left of the left end of the opening in the tip part 32 of the handle part 3, and the right end of the tip surface of the first support part 41 is located to the right of the right end of the opening in the tip part 32 of the handle part 3. The shape of the first support part 41 may, for example, have a recess in the center (or may be divided into left and right parts), or may be wavy. A second support portion 42 protruding upward is formed at the tip 32 of the handle portion 3. The first support portion 41 and the second support portion 42 each extend left and right, centered on an imaginary plane including the central axis A3 of the handle portion 3. The left-right width of the first support portion 41 is greater than the left-right width of the second support portion 42. The protruding end surfaces of the first support portion 41 and the second support portion 42 are, for example, flat. The left-right width of the first support portion 41 is at least three times the left-right width of the second support portion 42. In this embodiment, when the roasting pan 1 is placed on a horizontal surface, the height from the horizontal surface to the top end of the first support portion 41 is the same as the height from the horizontal surface to the top end of the second support portion 42. The protruding end surfaces of the first support portion 41 and the second support portion 42 are formed to fit, for example, on the same plane.

[0024] The presence of the first support portion 41 and the second support portion 42 improves the stability of the roasting pan 1 when it is placed upside down, as shown in Fig. 4. After washing the roasting pan 1, a user may place the roasting pan 1 upside down to remove water droplets from inside. In this case, according to this embodiment, the flat surface does not abut against the inclined opening 23, and a gap is formed between the main body 2 and the flat surface, allowing the roasting pan 1 to be stably placed on the flat surface.

[0025] (Roasting pan set) As shown in Figures 5, 6, 7, and 8, the roasting pan set 100 includes the roasting pan 1 and a heater 9. The heater 9 is placed directly on the induction plate. The roasting pan 1 is placed on the heater 9. In other words, the roasting pan 1 is heated by the operation of the induction plate via the heater 9. The basic configuration of the heater 9 is the same as that of JP 2022-51096 A. The basic configuration will be explained with reference to this document. Note that the cutout portion 912a is omitted in Figure 6.

[0026] The heater 9 includes a heat-resistant ceramic body 91, a support plate 92, a heat insulating material 93, and a heating plate 94. The body 91 includes a ring-shaped bottom surface 911 having a circular central opening 911a in the center, a side wall 912 extending upward from the entire outer periphery of the bottom surface 911, and a plurality of (preferably three or more) claws 913 protruding from the inner surface of the bottom surface 911 toward the center of the central opening 911a. When the heater 9 is placed on an IH plate, the bottom surface 911 and the claws 913 of the body 91 are in contact with the IH plate.

[0027] The support plate 92 is made of a non-flammable material, and is mainly composed of, for example, mica. The support plate 92 is placed on and engaged with a plurality of claws 913. The support plate 92 is formed in a disk shape corresponding to the shape of the central opening 911a. The support plate 92 has a plurality of slits formed therein that extend in the radial direction.

[0028] The heat insulating material 93 is disposed on the upper surface of the support plate 92. The heat insulating material 93 is formed in a disk shape that is thicker than the support plate 92. The heat insulating material 93 contains inorganic fibers as a main component. The heat insulating material 93 contains heat-resistant polymeric chemical fibers as a secondary component. The heat insulating material 93 is formed in a felt-like shape. The support plate 92 and the heat insulating material 93 are positioned at a distance from the IH plate by support of the claw portions 913.

[0029] The heating plate 94 is made of a material that has conductivity and electrical resistance and is heated by electromagnetic induction. In this embodiment, the heating plate 94 is a carbon plate whose main component is carbon, and is formed in a disk shape that is thicker and has a larger diameter than the support plate 92. The heating plate 94 is disposed inside the side wall portion 912 and on the upper surface of the heat insulating material 93.

[0030] The heater 9 is placed on the IH plate, and is configured to heat a cooking utensil (the roasting pan 1 in the roasting pan set 100) placed on the upper surface of the heating plate 94 and surrounded by the side wall portion 912 when the IH plate is activated. This makes it possible to cook with ceramic cooking utensils using the IH plate. The roasting pan set 100 is equipped with a heater 9 for the roasting pan, as will be described later.

[0031] (Characteristic structure of the roasting pan set) The heater 9 of the roasting pan set 100 is a heater for a roasting pan, and a notch 912a recessed downward is formed in the side wall 912 of the main body 91. The notch 912a is formed in a semicircular shape that narrows toward the bottom. The notch 912a is formed so that the handle 3 does not come into contact with the side wall 912 when the roasting pan 1 is set in the heater 9 (set state). In other words, the notch 912a is formed so that the handle 3 fits into it when set. The position and shape of the notch 912a are designed based on the position of the heating plate 94 and the configuration of the handle 3 when set.

[0032] The handle 3 extends continuously from the bottom surface 21 and trunk 22 of the main body 2. Therefore, the base end 31 of the handle 3 is formed in a position that allows it to easily come into contact with the side wall 912 of the heater 9. However, according to this embodiment, the handle 3 of the roasting pan 1 is not interfered with by the side wall 912 of the heater 9, and the user can set (place) the roasting pan 1 on the heater 9.

[0033] Another characteristic feature of the roasting pan set 100 is that the diameter of the heating plate 94 is equal to the diameter of the bottom surface 21 of the roasting pan 1. This allows the roasting pan 1 to be heated efficiently by the IH plate and heater 9. If the diameter of the heating plate 94 is larger than the diameter of the bottom surface 21, the heat from the heating plate 94 will be released from the outer edge of the heating plate 94 toward the outside rather than into the roasting pan 1. If the diameter of the heating plate 94 is smaller than the diameter of the bottom surface 21, the outer edge of the bottom surface 21 will not come into contact with the heating plate 94, resulting in a smaller heating area. Therefore, the configuration of this embodiment is preferable.

[0034] (others) The present invention is not limited to the above embodiment. For example, the handle portion 3 may be curved overall. Furthermore, the central axis A21 of the bottom surface 21 may be located inside or outside the inclined opening 23. The heating plate 94 may have a shape corresponding to the bottom surface 21 and the auxiliary bottom surface 311 (for example, a shape in which part of the disc-shaped outer edge protrudes). In this case, the shape of the notch portion 912a is also a shape that allows the heating plate 94 to be placed therein. The shape of each part in the description means that it is formed to have the described shape.

[0035] As shown in FIG. 10, the second support portion 42 may be omitted from the configuration of the above embodiment. Even in this case, when placed upside down, the roasting pan 1 is supported by the first support portion 41, which has a certain width, and the tip portion 32 of the handle portion 3, without the inclined opening 23 abutting the placement surface. In other words, even without the second support portion 42, the roasting pan 1 can be placed stably and the draining effect can be achieved. The second support portion 42 is provided to further improve stability. Also, as shown in FIG. 10, the auxiliary bottom surface 311 may be omitted from the configuration of the above embodiment. Although the roasting pan 1 is stable even without the auxiliary bottom surface 311, the handle portion 3 is used to further improve stability. [Explanation of symbols]

[0036] 1...roasting pan, 100...roasting pan set, 23...inclined opening, 231...distant edge, 232...near edge, 311...auxiliary bottom surface, 41...first support portion (support portion), 9...heater, 912a...notch portion.

Claims

1. A ceramic roasting pan having a body and a handle, The main body portion is A disk-shaped base and a hollow hemispherical body protruding upward from an outer edge of the bottom surface and forming an internal space of the main body together with the bottom surface; a circular inclined opening formed in an upper portion of the body, the inclined opening communicating the interior space with the outside; and The handle portion protrudes laterally from a portion of the body below the inclined opening, A communication passage is formed inside the handle portion, extending from the base end to the tip end of the handle portion and connecting the internal space with the outside, the center of the inclined opening is located closer to the handle portion than the central axis of the bottom surface; The inclined opening is formed such that a distal edge portion of the outer edge thereof that is farther from the handle portion is positioned higher than a neighboring edge portion that is closer to the handle portion. Roasting pan.

2. The protruding direction of the handle portion is defined as the front-rear direction, and the direction perpendicular to the front-rear direction and the up-down direction is defined as the left-right direction. A support portion protruding upward is formed at the upper end of the main body portion, When viewed from the front, a left end of a tip surface of the support portion is located to the left of a left end of an opening at the tip portion of the handle portion, The right end of the tip surface of the support portion is located to the right of the right end of the opening at the tip portion of the handle portion.

2. The roasting pan according to claim 1.

3. A planar auxiliary bottom surface is formed at the base end of the handle portion and is continuously connected to the bottom surface.

2. The roasting pan according to claim 1.

4. A roasting pan according to any one of claims 1 to 3; a heater disposed between the induction plate and the roasting pan, which enables the induction plate to heat the roasting pan; A roasting pan set comprising: The heater includes a heat-resistant ceramic body, a disk-shaped support plate, a disk-shaped heat insulating material, and a disk-shaped heat generating plate, The main body includes a ring-shaped bottom surface portion having a circular central opening at the center, a side wall portion extending upward from the entire periphery of the outer edge portion of the bottom surface portion, and a plurality of claw portions protruding from an inner surface of the bottom surface portion toward the center of the central opening, The support plate is made of a non-combustible material and is disposed on the plurality of claw portions; the heat insulating material is disposed on an upper surface of the support plate; the heating plate is made of a material that can be heated by electromagnetic induction, and is disposed inside the side wall portion and on an upper surface of the heat insulating material; The heater is placed on the IH plate and configured to heat the roasting pan placed on the upper surface of the heating plate and surrounded by the side wall portion by operation of the IH plate; The side wall portion has a recessed portion recessed downward so that the handle portion does not come into contact with the side wall portion when the roasting pan is set in the heater. Roasting pan set.

5. The diameter of the heating plate is formed to be equal to the diameter of the bottom surface of the roasting pan.

5. The roasting pan set according to claim 4.

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