CN211167953U - Packaging structure of cooking utensil - Google Patents

Abstract

The utility model discloses a cooking utensil's packaging structure, cooking utensil's packaging structure includes: the upper side of the lower support and the lower side of the upper support are respectively provided with an accommodating concave part, the accommodating concave part of the lower support is used for accommodating a base of the cooking utensil, the accommodating concave part of the upper support is used for accommodating a cover body of the cooking utensil, and the lower side of the lower support and/or the upper side of the upper support are/is provided with a plurality of supporting convex parts which are arranged at intervals. According to the utility model discloses cooking utensil's packaging structure has stable in structure reliably, supports and cushioning property advantage such as good.

Description

Packaging structure of cooking utensil

Technical Field

The utility model relates to a packaging structure makes technical field, particularly, relates to a cooking utensil's packaging structure.

Background

Packaging is the general name of containers, materials, aids, etc. used in a certain technical process to protect products, facilitate storage and transportation, promote sales, etc. during the flow process.

The cooking utensil needs to be transported, stored, stacked, assembled and disassembled in a series of processes from production to use, external force is applied to the cooking utensil, and the cooking utensil is mechanically damaged. In order to prevent the cooking appliance from being damaged, a packing structure is arranged in the packing box for relieving the impact and vibration on the cooking appliance in the packing box.

In the related art, a foam or paper base is used as a packaging structure of a cooking appliance, but the structural strength of the foam or paper base packaging structure is limited, which affects the functionality and applicability of the packaging structure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a cooking utensil's packaging structure, this cooking utensil's packaging structure have stable in structure reliable, support and cushioning performance advantage such as good.

To achieve the above object, an embodiment according to a first aspect of the present invention provides a packaging structure of a cooking appliance, the packaging structure of the cooking appliance including: the upper side of the lower support and the lower side of the upper support are respectively provided with an accommodating concave part, the accommodating concave part of the lower support is used for accommodating a base of the cooking utensil, the accommodating concave part of the upper support is used for accommodating a cover body of the cooking utensil, and the lower side of the lower support and/or the upper side of the upper support are/is provided with a plurality of supporting convex parts which are arranged at intervals.

According to the utility model discloses cooking utensil's packaging structure has stable in structure reliably, supports and cushioning performance advantage such as good.

In addition, the packaging structure of the cooking utensil according to the above embodiment of the present invention may also have the following additional technical features:

according to some embodiments of the invention, the plurality of end surfaces of the support convex portion on any one of the lower holder and the upper holder are located on the same plane.

According to some embodiments of the invention, at least a portion of the side surface of the support protrusion forms a step shape.

According to some embodiments of the invention, at least a portion of the side surface of the support protrusion extends gradually outward from a side close to the end surface of the support protrusion to a side far from the end surface of the support protrusion.

According to some embodiments of the invention, the side surface of the support convex portion has a plurality of reinforcement protrusions, each reinforcement protrusion is followed the extending direction of the support convex portion extends, a plurality of reinforcement protrusions are followed the circumferential interval of the support convex portion sets up.

According to some embodiments of the present invention, the support protrusion is located at a position of the lower side of the lower holder and/or the upper side of the upper holder corresponding to the bottom wall of the accommodation recess.

According to some embodiments of the present invention, the upper side of the lower support and/or the lower side of the upper support have a plurality of avoidance concave portions, and the avoidance concave portions correspond to the support convex portions one to one.

According to some embodiments of the invention, the lower side of the lower support and/or the upper side of the upper support has a coaming surrounding the accommodation recess.

According to some embodiments of the invention, the inside wall of bounding wall has a plurality of side direction convex parts, and is a plurality of the side direction convex part is followed the circumference interval of bounding wall sets up.

According to some embodiments of the invention, the lateral wall of the coaming has a plurality of lateral recesses, a plurality of the lateral recesses correspond to a plurality of the lateral protrusion positions one-to-one.

According to some embodiments of the invention, at least one of the upper tray and the lower tray is an integrally formed piece; alternatively, at least one of the upper tray and the lower tray comprises a plurality of separable pieces.

According to some embodiments of the invention, the thickness of the lower support and/or the upper support at any place is greater than 0.1 mm and less than 3 mm.

According to some embodiments of the present invention, the lower tray and/or the upper tray is made by a blister forming process.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a packaging structure of a cooking appliance according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a top tray of a packaging structure of a cooking appliance according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a top tray of a packaging structure of a cooking appliance according to another embodiment of the present invention.

Fig. 4 is a schematic structural view of a lower holder of a packaging structure of a cooking appliance according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a lower holder of a packaging structure of a cooking appliance according to another embodiment of the present invention. Reference numerals: the packaging structure 1, the lower support 100, the upper support 200, the supporting convex part 310, the reinforcing convex part 311, the coaming 320, the lateral convex part 321, the lateral concave part 322 and the cooking utensil 2.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A packaging structure 1 of a cooking appliance 2 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 5, a packaging structure 1 of a cooking appliance 2 according to an embodiment of the present invention includes a lower tray 100 and an upper tray 200.

The upper side of the lower tray 100 and the lower side of the upper tray 200 respectively have a receiving recess (the up-down direction is shown by arrow a in fig. 1), the receiving recess of the lower tray 100 is used for receiving the base of the cooking utensil 2, the receiving recess of the upper tray 200 is used for receiving the cover of the cooking utensil 2, and the lower side of the lower tray 100 and/or the upper side of the upper tray 200 has a plurality of supporting protrusions 310 arranged at intervals.

It should be understood here that the "lower side of the lower tray 100 and/or the upper side of the upper tray 200" may include only the lower side of the lower tray 100, only the upper side of the upper tray 200, and both the lower side of the lower tray 100 and the upper side of the upper tray 200.

According to the utility model discloses packaging structure 1, through holding in the palm 100 and pop-up 200 setting under and hold the concave part, can install cooking utensil 2 in holding the concave part, be convenient for fix a position cooking utensil 2 in the packing carton, utilize and hold in the palm 100 and pop-up 200 down to protect cooking utensil 2, slow down impact and the vibration that cooking utensil 2 received, avoid cooking utensil 2 to cause the damage at the in-process of transportation, reduce cooking utensil 2's spoilage, improve cooking utensil 2's transportation reliability.

Moreover, by providing the supporting protrusion 310 on the lower side of the lower tray 100 and/or the upper side of the upper tray 200, a buffering supporting area can be formed on the lower side of the lower tray 100 and/or the upper side of the upper tray 200, so that the structural strength of the lower tray 100 and/or the upper tray 200 is improved, the capability of the packaging structure 1 against external force is improved, the packaging structure 1 can provide sufficient support and protection for the cooking utensil 2, and the protection effect of the packaging structure 1 on the cooking utensil 2 is improved.

In addition, through setting up a plurality of support convex parts 310 that the interval was arranged, can make packaging structure 1's atress more even, under the circumstances that guarantees packaging structure 1 and have certain structural strength, can reduce packaging structure 1's volume to reduce the overall dimension of cooking utensil 2's extranal packing, under same transportation condition, can transport more cooking utensil 2 like this, reduce cooking utensil 2's cost of transportation, improve cooking utensil 2's transportation efficiency.

Therefore, according to the utility model discloses cooking utensil 2's packaging structure 1 has stable in structure reliably, support and cushioning performance advantage such as good.

A packaging structure 1 of a cooking appliance 2 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

In some embodiments of the present invention, as shown in fig. 1 to 5, a packaging structure 1 of a cooking appliance 2 according to an embodiment of the present invention includes a lower tray 100 and an upper tray 200.

In some embodiments of the present invention, as shown in fig. 2 and 4, the end surfaces of the plurality of supporting protrusions 310 on any one of the lower tray 100 and the upper tray 200 are located in the same plane. Therefore, the plurality of supporting convex parts 310 can be utilized to bear the external acting force together, so that the stress of the packaging structure 1 is more uniform, the structural strength and the rigidity of the packaging structure 1 are further improved, and the packaged cooking utensil 2 is convenient to stack and transport.

Specifically, the lower side of the lower tray 100 has a plurality of supporting protrusions 310 extending in the vertical direction, the plurality of supporting protrusions 310 are arranged at intervals in the circumferential direction of the lower tray 100, and the end surfaces of the plurality of supporting protrusions 310 on the lower tray 100 are located in the same plane. The upper side of the upper tray 200 has a plurality of supporting protrusions 310 extending in the vertical direction, the plurality of supporting protrusions 310 are arranged at intervals in the circumferential direction of the upper tray 200, and the end surfaces of the plurality of supporting protrusions 310 on the upper tray 200 are located in the same plane.

Alternatively, as shown in fig. 2, at least a portion of the side surface of the support protrusion 310 is stepped. Therefore, the structural strength of the supporting protrusion 310 is increased, and the processing and forming of the supporting protrusion 310 are facilitated, for example, when the supporting protrusion 310 is formed by a plastic suction process, the side wall of the supporting protrusion 310 is prevented from being too thin to affect the forming effect of the supporting protrusion 310.

Further, when the plastic suction process is adopted for processing and forming, the sheet material of the supporting convex part 310 and the surrounding area thereof can be stretched and transited, and can be unfolded uniformly, and the thickness of the side wall of the supporting convex part 310 can be ensured to be uniform.

Specifically, the support protrusion 310 includes a main body having one end connected to the upper tray 200 or the lower tray 100, and a protrusion provided at the other end of the main body, and having a sectional area smaller than that of the main body.

In some embodiments of the present invention, as shown in fig. 2, at least a portion of the side surface of the support protrusion 310 gradually extends outward from a side close to the end surface of the support protrusion 310 to a side far from the end surface of the support protrusion 310. This can avoid the stress concentration, and is convenient for improve the molding effect of the supporting protrusion 310, and further improve the structural stability of the packaging structure 1.

Alternatively, as shown in fig. 3, the side surface of the support convex 310 has a plurality of reinforcing protrusions 311, each reinforcing protrusion 311 extends in the extending direction of the support convex 310, and the plurality of reinforcing protrusions 311 are provided at intervals in the circumferential direction of the support convex 310. This can improve the strength and rigidity of the supporting protrusion 310, further improve the ability of the supporting protrusion 310 against external force, and improve the protective effect of the packaging structure 1 on the cooking utensil 2.

In some embodiments of the present invention, the plurality of supporting protrusions 310 are located at positions corresponding to the bottom wall of the receiving recess on the lower side of the lower tray 100 and/or the upper side of the upper tray 200. Therefore, the lower support 100 and/or the upper support 200 can further protect the cooking utensil 2, and the edge of the cooking utensil 2 is prevented from being collided and damaged.

Specifically, the plurality of supporting protrusions 310 of the lower tray 100 are located at positions corresponding to the bottom wall of the receiving recess on the lower side of the lower tray 100, and the plurality of supporting protrusions 310 of the upper tray 200 are located at positions corresponding to the bottom wall of the receiving recess on the upper side of the upper tray 200.

Alternatively, the upper side of the lower tray 100 and/or the lower side of the upper tray 200 may have a plurality of relief recesses, which correspond to the positions of the plurality of support protrusions 310 one-to-one. Therefore, the processing and molding of the supporting convex part 310 and the processing of the lower support 100 and/or the upper support 200 by adopting a plastic suction molding mode are facilitated, the cooking utensil 2 is conveniently attached and matched with the lower support 100 and the upper support 200, and the interference of the cooking utensil 2 with the lower support 100 and the upper support 200 in the installation process is avoided.

Specifically, the lower tray 100 has a plurality of relief recesses on the upper side, which correspond to the positions of the plurality of support protrusions 310 of the lower tray 100, one for one, and the upper tray 200 has a plurality of relief recesses on the lower side, which correspond to the positions of the plurality of support protrusions 310 of the upper tray 200, one for one. Therefore, the lower support 100 and the upper support 200 can be stacked, the occupied size is small, and the transportation is convenient.

Optionally, the lower end surface of the upper tray 200 is contoured to match the contour of the lid of the cooking utensil 2, for example, the upper tray 200 has a remote recess that fits the handle of the lid. The upper end surface of the lower holder 100 is contoured to match the contour of the base of the cooking utensil 2. This can limit the cooking utensil 2 to some extent.

Specifically, as shown in fig. 2, the lower side of the lower tray 100 and/or the upper side of the upper tray 200 has an enclosure 320 surrounding the receiving recess. Therefore, the packaging structure 1 is convenient to assemble into the packaging box, the packaging structure 1 is limited, the packaging structure 1 is accurately and reliably matched in the packaging box, and the supporting strength and reliability of the packaging structure 1 can be further improved.

Optionally, the height of the perimeter of the upper tray 200 is 3-8 millimeters.

Further, the lower side of the lower tray 100 and the upper side of the upper tray 200 each have a fence 320 surrounding the receiving recess. This makes it possible to form a cushioned support area in the circumferential direction of the packaging structure 1.

More specifically, as shown in fig. 2, the inner sidewall of the shroud 320 has a plurality of lateral protrusions 321, and the plurality of lateral protrusions 321 are provided at intervals in the circumferential direction of the shroud 320. Therefore, the structural strength of the coaming 320 can be enhanced, and the anti-collision and impact-resistant performance of the coaming 320 can be improved.

Alternatively, as shown in fig. 3, the side surface of the lateral projection 321 also has a plurality of reinforcing protrusions 311, each reinforcing protrusion 311 extending in the extending direction of the support projection 310, the plurality of reinforcing protrusions 311 being provided at intervals in the circumferential direction of the lateral projection 321.

Further, as shown in fig. 4, the outer sidewall of the shroud 320 has a plurality of lateral recesses 322, and the plurality of lateral recesses 322 correspond to the plurality of lateral protrusions 321 in a one-to-one manner. This facilitates the forming of the lateral recess 322 and the forming of the lower tray 100 and/or the upper tray 200 by vacuum forming.

In some embodiments of the present invention, at least one of the upper tray 200 and the lower tray 100 is an integrally formed piece. This simplifies the assembly process of the packaging structure 1 and improves the production efficiency of the packaging structure 1.

In other embodiments of the present invention, at least one of the upper tray 200 and the lower tray 100 comprises a plurality of separable pieces. This makes it possible to reduce the overall size of the packaging structure 1 and to increase the assembly flexibility of the packaging structure 1.

Specifically, the lower tray 100 and/or the upper tray 200 have a thickness anywhere from greater than 0.1 mm to less than 3 mm. Therefore, the lower tray 100 and/or the upper tray 200 have enough structural strength, and the overall size of the lower tray 100 and/or the upper tray 200 can be reduced, so that the volume of the packaging box is reduced, the transportation efficiency of the cooking appliance 2 is improved, and the transportation cost of the cooking appliance 2 is reduced.

Specifically, the lower tray 100 has a thickness of more than 0.1 mm and less than 3 mm at any point, and the upper tray 200 has a thickness of more than 0.1 mm and less than 3 mm at any point.

Optionally, the lower tray 100 and/or the upper tray 200 have a thickness anywhere from greater than 0.7 millimeters to less than 1.2 millimeters.

In some embodiments of the present invention, the lower tray 100 and/or the upper tray 200 are formed by a blister process. Therefore, the production efficiency of the packaging structure 1 is improved conveniently, the processing environment of the plastic suction process is good, and the operation comfort of workers is improved conveniently. Compared with foam materials formed by foaming, the cost for producing the die can be reduced, the die sinking production of packaging structures with different sizes and shapes can be avoided, and the defects that waste cannot be naturally weathered, degraded and incinerated to generate harmful gas and the like are avoided. Compare and adopt fashioned packaging material of paper base, can improve packaging structure 1's moisture resistance, improve packaging structure 1's machining efficiency, packaging structure 1's processing environment is good, reduces the power consumption of packaging structure 1 course of working, and is convenient for reduce packaging structure 1's whole volume.

Optionally, the material of the packaging structure 1 is selected from environmentally friendly recyclable plastics, such as PET (polyethylene terephthalate), L DPE (low density polyethylene), PP (polypropylene).

According to an embodiment of the present invention, the packaging structure 1 of the cooking appliance 2 includes a lower tray 100 and an upper tray 200. The upper side of the lower tray 100 and the lower side of the upper tray 200 respectively have a receiving recess, the receiving recess of the lower tray 100 is used for receiving the base of the cooking utensil 2, the receiving recess of the upper tray 200 is used for receiving the cover of the cooking utensil 2, wherein the lower side of the lower tray 100 and/or the upper side of the upper tray 200 has a plurality of supporting protrusions 310 arranged at intervals.

The lower side of the lower tray 100 has a plurality of supporting protrusions 310 extending in the vertical direction, the plurality of supporting protrusions 310 are arranged at intervals in the circumferential direction of the lower tray 100, and the end surfaces of the plurality of supporting protrusions 310 on the lower tray 100 are located in the same plane. The upper side of the upper tray 200 has a plurality of supporting protrusions 310 extending in the vertical direction, the plurality of supporting protrusions 310 are arranged at intervals in the circumferential direction of the upper tray 200, and the end surfaces of the plurality of supporting protrusions 310 on the upper tray 200 are located in the same plane.

At least a portion of the side surface of the support protrusion 310 is stepped. The supporting protrusion 310 includes a main body portion having one end connected to the upper holder 200 or the lower holder 100, and a protrusion portion provided at the other end of the main body portion, and having a sectional area smaller than that of the main body portion. At least a portion of the side surface of the support protrusion 310 gradually extends outward from a side close to the end surface of the support protrusion 310 to a side far from the end surface of the support protrusion 310. The side surface of the support protrusion 310 has a plurality of reinforcing protrusions 311, each reinforcing protrusion 311 extends in the extending direction of the support protrusion 310, and the plurality of reinforcing protrusions 311 are arranged at intervals in the circumferential direction of the support protrusion 310.

The plurality of supporting protrusions 310 of the lower tray 100 are located at positions corresponding to the bottom wall of the receiving recess on the lower side of the lower tray 100, and the plurality of supporting protrusions 310 of the upper tray 200 are located at positions corresponding to the bottom wall of the receiving recess on the upper side of the upper tray 200.

The lower tray 100 has a plurality of recessed recesses corresponding to the positions of the plurality of supporting protrusions 310 of the lower tray 100, and the upper tray 200 has a plurality of recessed recesses corresponding to the positions of the plurality of supporting protrusions 310 of the lower tray 100 of the upper tray 200.

The lower side of the lower tray 100 and the upper side of the upper tray 200 have a shroud 320 surrounding the receiving recess. The inner sidewall of the shroud 320 has a plurality of lateral protrusions 321, and the plurality of lateral protrusions 321 are provided at intervals in the circumferential direction of the shroud 320. The outer side wall of the shroud 320 has a plurality of lateral recesses 322, and the plurality of lateral recesses 322 correspond to the plurality of lateral protrusions 321 in a one-to-one manner.

The upper tray 200 and the lower tray 100 are integrally formed. The lower tray 100 has a thickness of more than 0.1 mm and less than 3 mm at any place, and the upper tray 200 has a thickness of more than 0.1 mm and less than 3 mm at any place. The lower holder 100 and the upper holder 200 are both made by a plastic suction molding process.

Other constructions and operations of the packaging structure 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. A packaging structure of a cooking utensil is characterized by comprising a lower support and an upper support, wherein the upper side of the lower support and the lower side of the upper support are respectively provided with a containing concave part, the containing concave part of the lower support is used for containing a base of the cooking utensil, the containing concave part of the upper support is used for containing a cover body of the cooking utensil,

wherein the lower side of the lower tray and/or the upper side of the upper tray has a plurality of supporting protrusions arranged at intervals.

2. The packaging structure for a cooking appliance according to claim 1, wherein end surfaces of the plurality of supporting protrusions on any one of the lower tray and the upper tray are located in the same plane.

3. The packaging structure of cooking appliances according to claim 1, wherein at least a portion of the side surface of the support protrusion is stepped.

4. The packaging structure of a cooking appliance according to claim 1, wherein at least a part of the side surface of the support protrusion extends gradually outward from a side close to the end surface of the support protrusion to a side away from the end surface of the support protrusion.

5. The packaging structure for a cooking appliance according to claim 1, wherein the side surface of the support convex portion has a plurality of reinforcing protrusions each extending in the extending direction of the support convex portion, the plurality of reinforcing protrusions being provided at intervals in the circumferential direction of the support convex portion.

6. The packaging structure of cooking appliances according to claim 1, wherein a plurality of the supporting protrusions are located at positions corresponding to the bottom wall of the accommodating recess on the lower side of the lower tray and/or the upper side of the upper tray.

7. The packaging structure of a cooking appliance according to claim 1, wherein the upper side of the lower tray and/or the lower side of the upper tray has a plurality of relief recesses, and the relief recesses correspond to the support protrusions in one-to-one position.

8. The packaging structure of cooking appliances according to claim 1, wherein the lower side of the lower tray and/or the upper side of the upper tray has a surrounding plate surrounding the accommodation recess.

9. The packaging structure for a cooking appliance according to claim 8, wherein the inner side wall of the collar has a plurality of lateral protrusions, and the plurality of lateral protrusions are provided at intervals in a circumferential direction of the collar.

10. The packaging structure for a cooking utensil of claim 9 wherein the outer sidewall of the shroud has a plurality of lateral recesses in one-to-one correspondence with a plurality of lateral protrusion positions.

11. The packaging structure of a cooking appliance according to claim 1, wherein at least one of the upper tray and the lower tray is an integrally formed member; alternatively, at least one of the upper tray and the lower tray comprises a plurality of separable pieces.

12. The packaging structure of a cooking appliance according to claim 1, wherein the thickness of the lower tray and/or the upper tray is greater than 0.1 mm and less than 3 mm at any place.

13. The packaging structure of cooking utensil of claim 1 wherein the lower tray and/or the upper tray is made by a blister process.

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