Lid for cookware

Abstract

To provide a lid for a cooking utensil which can be sanitarily stored with good space efficiency without exposing the inside surface of the lid to the outside by housing a handle part in a recessed space generated by depressing the handle part downward, depressing the top part of a body part and the handle part downward, and deforming the peripheral edge part of the body part into a shape warped upward, and in which the center part of the lid for the cooking utensil, that is, the top part of the lid and the handle part are not recessed by thermal deformation even when used for cooking.SOLUTION: A flat dome-shaped body part made of silicone rubber and a handle part provided at a top part of the body part are provided, a value of an outer diameter of the body part / an inner dimension height of the body part is set to 7 to 11, and hardness of the silicone rubber of the body part is set to 70 to 90.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a lid for a cookware, specifically to a lid for a cookware such as a pot, a frying pan, etc. The cookware lid of the present invention is suitable for use with a griddle having a gently concave, curved surface for cooking, also known as a "multi-griddle" (hereinafter sometimes simply referred to as a "multi-griddle"). [Background technology]

[0002] Conventional lids for cooking utensils such as pots and frying pans have a flat or dome-shaped body with a handle at the top, which makes them bulky and requires a large storage space. To address this issue, if you turn the lid of the cooking utensil upside down and place the lid on the pot or frying pan, the handle can be stored in the internal space of the pot or frying pan, improving space efficiency. However, this method has the disadvantage of being unsanitary because the inside surface of the lid that comes into contact with the ingredients to be cooked is exposed to the outside when storing the lid.

[0003] On the other hand, due to the recent outdoor boom, iron plates with gently concave curved surfaces for cooking, known as "multi-griddles," have become popular, and silicone rubber multi-griddle lids for use with these griddles are also available. However, these conventional silicone rubber multi-griddle lids have the drawback of deforming when exposed to heat of 200°C or higher during cooking, and the fact that multi-griddles generally have relatively large outer diameters, and conventional silicone rubber multi-griddle lids are designed to have relatively large outer diameters to match these, causing the top of the lid to cave in, i.e., become concave.

[0004] Furthermore, there are lids for food storage containers that are integrally formed from silicone material and that can deform the convex lid into a concave shape to seal the food storage container (Patent Document 1). However, the technology disclosed in Patent Document 1 is only a lid for a food storage container and does not take into consideration the possibility that the lid may become concave during cooking. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3143343 Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a lid for a cooking utensil that can be stored hygienically and space-efficiently and that will not become dented even when cooked with heat. [Means for solving the problem]

[0007] The cookware lid (1) of the first aspect of the present invention is a cookware lid (1) comprising a flattened, dome-shaped body (2) made of silicone rubber and a handle (4) provided on the top (3) of the body (2), characterized in that the value of the outer diameter of the body (2) divided by the inner height of the body (2) is 7 to 11, and the hardness of the body (2) is 70 to 90.

[0008] The cookware lid (1) of the second aspect of the present invention is characterized in that the thickness of the top part (3) of the main body part (2) is 3 mm to 5 mm.

[0009] The third aspect of the cookware lid (1) of the present invention is characterized in that the handle portion (4) is integrally formed with the main body portion (2), the inside of the handle portion (4) is hollow, and the lower portion of the handle portion (4) is open.

[0010] A fourth aspect of the cookware lid (1) of the present invention is characterized in that the cookware is an iron plate having a gently concave curved surface for cooking. [Effects of the Invention]

[0011] According to the first aspect of the present invention, the main body of the cookware lid is made of flexible silicone rubber. When the handle is pressed downward, the top and handle of the main body collapse downward, and the periphery of the main body is deformed into a curved shape. This deformed shape results in a recess near the top of the main body, and the handle is housed in this recessed space. This allows for the dome shape of the main body and the protruding handle to be space-saving, improving the space efficiency during storage of the cookware lid. Since there is no need to turn the lid upside down to expose the inside surface of the lid, the lid can be stored hygienically.

[0012] Furthermore, the ratio of the outer diameter of the main body part of the cookware lid of the present invention to the inner height of the main body part is set within a predetermined preferred range of 7 to 11. Because the ratio of the outer diameter to the inner height of the main body part of the cookware lid is set within this preferred range, it is possible to prevent the cookware lid from being dented due to thermal deformation in the center part of the cookware lid, i.e., the top or handle part, collapsing when the cookware lid is used for cooking.

[0013] Furthermore, since the silicone rubber of the main body of the cookware lid of the present invention has an appropriate hardness of 70 to 90, it is possible to prevent the center of the cookware lid from collapsing due to thermal deformation when the cookware lid is used for cooking, which would otherwise cause the cookware lid to become dented. The combination of setting the value of the outer diameter of the main body / the inner height of the main body within the predetermined preferred range of 7 to 11 and the appropriate hardness of the silicone rubber of the main body of 70 to 90 effectively prevents the cookware lid from becoming dented.

[0014] According to the second aspect of the present invention, the thickness of the top of the cookware lid is set within a predetermined preferred range of 3 mm to 5 mm. This, combined with the preferred range of the ratio of the outer diameter to the inner height of the main body of the cookware lid and the fact that the main body is made of silicone rubber with appropriate hardness, more effectively prevents the central part of the cookware lid, i.e., the top or handle, from collapsing due to thermal deformation when the cookware lid is used for cooking.

[0015] According to the third aspect of the present invention, the handle portion is integral with the main body portion, the interior of the handle portion is hollow, and the lower part of the handle portion is open. This makes it possible to reduce the weight of the handle portion, which is essential for convenient use of the cookware lid, without using unnecessary parts or components. This, combined with the fact that the ratio of the outer diameter to the inner height of the main body portion of the cookware lid is within a preferred range, the main body portion is made of silicone rubber with appropriate hardness, and the thickness of the top of the cookware lid is preferably within a predetermined range, makes it even more effective to prevent the center of the cookware lid, i.e., the top or handle portion, from collapsing due to thermal deformation when the cookware lid is used for cooking.

[0016] According to a fourth aspect of the present invention, the cooking utensil is an iron plate having a gently concave curved surface for cooking, i.e., a so-called multi-griddle. After the deformation of the cooking utensil lid of the present invention during storage, the top and handle of the main body are depressed downward, and the peripheral edge of the main body is curved upward. This shape fits well with the gently concave curved surface for cooking of the multi-griddle, making it particularly desirable in terms of hygiene and space efficiency. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view showing an example of a preferred embodiment of a cookware lid according to the present invention. [Figure 2] FIG. 2 is a plan view showing an example of a preferred embodiment of the cookware lid of the present invention. [Figure 3] FIG. 3 is a bottom view showing an example of a preferred embodiment of the cookware lid of the present invention. [Figure 4] FIG. 4 is a front view showing an example of a preferred embodiment of the cookware lid of the present invention. [Figure 5] FIG. 5 is a side view showing an example of a preferred embodiment of the cookware lid of the present invention. [Figure 6] FIG. 6 is a front cross-sectional view showing an example of a preferred embodiment of the cookware lid of the present invention. [Figure 7] FIG. 7 is a perspective view showing an example of a preferred embodiment of the cookware lid of the present invention in use. [Figure 8] FIG. 8 is a perspective view showing an example of a storage state of a preferred embodiment of the cookware lid of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0019] As shown in Figures 1 to 6, the cookware lid 1 of the present invention has a flattened dome-shaped main body 2, i.e., a flattened hemisphere shape, and a handle 4 provided on the top 3 of the main body 2.

[0020] The main body 2 is made of silicone rubber. Normally or during use, the cookware lid 1 has a flattened dome shape as shown in Figures 1 to 7. However, because the main body 2 is made of flexible silicone rubber, when the cookware lid 1 is not in use, i.e., during storage, pressing the handle 4 downward causes the top 3 and handle 4 of the main body 2 to collapse downward, and the peripheral edge 5 of the main body 2 to deform into a curved upward shape, as shown in Figure 8. (Hereinafter, the deformed shape of the cookware lid 1 during storage may be simply referred to as the "deformed shape.") This deformed shape is a recess near the top 3 of the main body 2, and the handle 4 is housed in this recessed space. This saves space by eliminating the dome shape of the main body 2 and the protruding portion of the handle 4, thereby improving the space efficiency of the cookware lid 1 during storage. In this case, since there is no need to turn the cookware lid 1 upside down and expose the inner surface of the cookware lid 1 to the outside, the cookware lid 1 can also be stored hygienically.

[0021] In the cookware lid 1, the value of the outer diameter d of the main body 2 divided by the inner height h of the main body 2 is 7 to 11. As shown in FIG. 6, the outer diameter d is the diameter of the peripheral edge 5 of the main body 2, and the inner height h is the shortest distance from the center point of the inner surface of the main body 2 of the cookware lid 1 to the ground when the cookware lid 1 is placed on flat ground. The value of the outer diameter d of the main body 2 divided by the inner height h of the main body 2 is a value indicating the ratio of the outer diameter d of the main body 2 to the inner height h of the main body 2. In the present invention, setting the value of the outer diameter d of the main body 2 divided by the inner height h of the main body 2 to be 7 to 11 achieves an appropriate balance between the outer diameter d of the main body 2 and the inner height h of the main body 2. It is desirable that the value of the outer diameter d of the main body 2 divided by the inner height h of the main body 2 be 7.5 to 10.5. Furthermore, by achieving an appropriate balance between the outer diameter d of the main body 2 and the inner height h of the main body 2, when the cookware lid 1 is deformed during storage, the peripheral edge 5 of the main body 2, which is bent upward, becomes higher than the handle 4, thereby preventing the upper part of the handle 4 from protruding upward in the deformed shape, which would reduce space efficiency.

[0022] Furthermore, in the cookware lid 1, the value of the outer diameter d of the main body 2 / the inner height h of the main body 2 is set to 7 to 11, preferably 7.5 to 10.5, so that the outer diameter d and the inner height h of the main body 2 are well balanced and the main body 2 forms a moderately strong arch structure. Therefore, even when the cookware lid 1 is placed on a cookware and used for cooking, it is possible to prevent the central part of the cookware lid 1, i.e., the top 3 or handle 4 of the main body 2, from collapsing due to thermal deformation, and the cookware lid 1 from becoming dented.

[0023] On the other hand, if the value of the outer diameter d of the main body portion / internal height h of the main body portion is smaller than 7, the ideal balance between the outer diameter d and the internal height h is lost, and the outer diameter d becomes smaller than the internal height h.In other words, the internal height h becomes larger than the outer diameter d, which can cause the height dimension to become relatively large when the cookware lid is deformed during storage, hindering space saving.Furthermore, as described below, inconveniences may arise, such as the fit between the curved surface of a so-called multi-griddle, for which the cookware lid is preferably used, and the deformed shape is hindered.

[0024] Conversely, if the value of the outer diameter d of the main body portion / internal height h of the main body portion is greater than 11, the favorable balance between the outer diameter d and the internal height h is lost, and the outer diameter d becomes larger than the internal height h. In other words, the internal height h becomes smaller than the outer diameter d. As a result, the main body portion cannot form a suitably strong arch structure. Therefore, when the cookware lid is placed on a cookware and used for cooking, the center of the cookware lid may collapse due to thermal deformation, causing the cookware lid to become concave, and the inner surface of the concave cookware lid may come into contact with the ingredients in the cookware, resulting in inconvenience.

[0025] The outer diameter d of the main body 2 is not particularly limited, but for example, since the cookware lid 1 is suitable for use with a so-called multi-griddle, which generally has an outer diameter of 15 cm to 40 cm, the outer diameter d of the main body 2 of the cookware lid 1 of the present invention can be set to a slightly smaller value of approximately 14 cm to 39 cm. However, since multi-griddles tend to have relatively large outer diameters, for example, approximately 25 cm to 35 cm, it is desirable that the outer diameter d of the main body 2 of the cookware lid 1 of the present invention be set to a slightly smaller value of approximately 24 cm to 34 cm accordingly.

[0026] The inner height h of the main body 2 is not particularly limited, but is appropriately determined so that the value of outer diameter d / inner height h is within the range of 7 to 11, preferably 7.5 to 10.5, in accordance with the outer diameter d of the main body 2 described above.

[0027] The hardness of the main body 2, i.e., the hardness of the silicone rubber used in the main body 2, is 70 to 90, and preferably 75 to 85. In the present invention, "hardness" refers to the hardness measured with a durometer type A in accordance with JIS-K6253, and therefore, specifically, the hardness of the silicone rubber used in the main body 2 is A70° to A90°, and preferably A75° to A85°.

[0028] If the hardness of the silicone rubber is less than 70, the hardness and strength of the main body 2 will be reduced, and when the cookware lid is placed on a cookware and used for cooking, the center of the cookware lid may sink due to thermal deformation, causing the cookware lid to become concave, and the inner surface of the concave cookware lid may come into contact with the ingredients in the cookware, which may cause inconvenience.In addition, the main body may bend more easily than necessary, making the cookware lid difficult to handle.

[0029] If the hardness of the silicone rubber is greater than 90, the hardness will be greater than necessary, which may result in an increased probability of defective production of the cookware lid and an increase in the manufacturing cost of the cookware lid.

[0030] In a preferred embodiment of the present invention, the thickness of the top 3 of the main body 2 is 3 mm to 5 mm. By setting the thickness of the top 3 of the main body 2 within this preferred range, the top 3 becomes suitably strong and light, so that even when the cookware lid 1 is placed on a cookware and used for cooking, it is possible to prevent the center of the cookware lid 1, i.e., the top 3 or handle 4 of the main body 2, from collapsing due to thermal deformation, which would cause the cookware lid 1 to become concave. Note that the portions of the main body 2 other than the top 3 can have a thickness of, for example, 1 mm to 3 mm.

[0031] In the present invention, the apex 3 refers to the region appearing in the central portion in FIG. 2 (plan view) and FIG. 3 (bottom view), and also refers to the upper region in FIG. 4 (front view) and FIG. 5 (side view). For example, to specifically describe the apex 3 using numerical values, it is a circular region appearing in the central portion in FIG. 3 (actually, it is a flattened dome-shaped region as shown in FIGS. 1, 4 to 7), centered on the center point of the main body 2 in a plan view (or bottom view), and having a diameter that is 30% to 40% of the outer diameter d of the main body 2. The double-lined circle in the central portion in FIG. 3 represents a groove 9 formed on the inner surface of the main body 2 in a preferred embodiment of the present invention, as shown in FIG. 6 as a slight depression. The groove 9 has a depth of, for example, about 1.0 mm to 1.5 mm. The groove 9 can function as a starting point for upward warping of the peripheral edge portion 5 in the deformed shape. Furthermore, the central side of the main body 2 with the groove 9 as the boundary can be set as the top 3 .

[0032] The handle 4 is provided on the top 3 of the main body 2. There are no particular limitations on the material, shape, size, placement, etc. of the handle 4. In a preferred embodiment described below, the handle 4 is desirably made of silicone rubber, similar to the main body 2, including when the handle 4 is provided integrally with the main body 2.

[0033] In a preferred embodiment of the present invention, the handle portion 4 is integral with the main body 2, is hollow, and is open at the bottom. The provision of the handle portion 4 in this manner makes it possible to reduce the weight of the handle portion 4, which is essential for convenient use of the cookware lid 1, without using unnecessary parts or components. This, combined with the fact that the ratio of the outer diameter d to the inner height h of the main body 2 of the cookware lid 1 is within a preferred range, that the main body 2 is made of silicone rubber with an appropriate hardness, and that the thickness of the top 3 of the cookware lid is preferably within a predetermined preferred range, makes it possible to more effectively prevent the center of the cookware lid 1, i.e., the top 3 or the handle portion 4, from collapsing due to thermal deformation, resulting in denting of the cookware lid 1, even when the cookware lid 1 is used for cooking.

[0034] As shown in Figures 1 to 6, the handle portion 4 of the preferred embodiment of the present invention described above can be composed of a peripheral wall 6 rising from the top 3 of the main body 2 and a ceiling portion 7 covering the upper end of the peripheral wall 6. The peripheral wall 6 of the handle portion 4 can have a thickness of, for example, 2 mm to 4 mm, and the ceiling portion 7 of the handle portion 4 can have a thickness of, for example, 1 mm to 3 mm. If the thicknesses of the peripheral wall 6 and the ceiling portion 7 of the handle portion 4 are within these ranges, the handle portion 4 will have sufficient strength, making it easy to handle the cookware lid 1 by gripping the handle portion 4, and the handle portion 4 can also be sufficiently lightweight, which can contribute to preventing dents in the cookware lid 1 during cooking.

[0035] In the preferred embodiment described above, that is, when the handle portion 4 is formed integrally with the main body portion 2, the interior of the handle portion 4 is hollow, and the lower portion of the handle portion 4 is open, the open portion appears as if the main body portion 2 has been cut out, and so in Fig. 3, what appears at the center of the portion where the handle portion 4 is located is the ceiling portion 7 of the handle portion 4, and therefore the main body portion 2 is not formed at the center of the portion where the handle portion 4 is located. Therefore, in this preferred embodiment, the main body portion 2 has a cutout at the center of the portion where the handle portion 4 is located, and therefore cannot be said to be completely dome-shaped, but the "dome-shaped" in this invention also includes such a partially cutout shape.

[0036] Furthermore, the inner height h is defined as the shortest distance from the center point of the inner surface of the main body 2 of the cookware lid 1 to the ground when the cookware lid 1 is placed on flat ground. However, in a preferred embodiment of the present invention, when the handle 4 is formed integrally with the main body 2, the inside of the handle 4 is hollow, and the lower part of the handle 4 is open, the center point of the inner surface of the main body 2 of the cookware lid 1 does not actually exist. However, assuming that the part where the main body 2 exists extends naturally and continuously toward the center due to its curvature, so that the main body 2 forms a flattened dome shape, the inner height h is regarded as the shortest distance from the center point of the imaginary inner surface of the main body 2 to the ground when the cookware lid 1 is placed on flat ground.

[0037] It is desirable to provide a steam exhaust hole 8 having a diameter of 5 to 7 mm at any position between the top 3 and the peripheral edge 5 of the main body 2 of the cookware lid 1. This makes it possible to exhaust steam generated in the space formed between the cookware lid 1 and the cookware when cooking with the cookware lid 1 placed on the cookware, allowing the cookware lid 1 to be placed stably on the cookware during cooking, thereby enabling safe cooking.

[0038] Although not shown, a hooking piece (not shown) is provided extending outward from the peripheral edge 5 of the main body 2 of the cookware lid 1, and the hooking piece can be provided with a hooking hole of any shape, such as a circle, an oval, or a snowman shape. By hooking the hooking hole onto an appropriate hook, the cookware lid 1 can be stored in an appropriate space in the shape it is in during normal use or in a deformed shape during storage.

[0039] The main body 2 of the cookware lid 1 is preferably made of transparent or translucent silicone rubber. By making the main body 2 out of transparent or translucent silicone rubber, it is possible to visually check the state of the ingredients inside the cookware while cooking with the cookware lid 1 placed on the cookware, without opening the cookware lid 1. It is also preferable that the handle 4 be made of a transparent or translucent material, including when the handle 4 is provided integrally with the main body 2. [Explanation of symbols]

[0040] 1 Cookware lid 2 Main body 3 Top 4 Handle 5 Periphery 6. Handle wall 7 Ceiling part of the handle 8 Steam exhaust hole 9 grooves

Claims

1. a flattened, dome-shaped main body made of silicone rubber; A cookware lid having a handle portion provided on the top of the main body portion, a value of the outer diameter of the main body portion / the inner height of the main body portion is 7 to 11; A lid for a cookware, characterized in that the hardness of the main body is 70 to 90.

2. 2. The cookware lid according to claim 1, wherein the thickness of the top of the main body is 3 mm to 5 mm.

3. The handle portion is integrally formed with the main body portion, The handle portion is hollow, 3. The cookware lid according to claim 1, wherein a lower portion of the handle is open.

4. 4. The cookware lid of claim 3, wherein the cookware is an iron plate having a gently concave curved surface for cooking.

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