Electric cooker

The electric cooker design with a metal container and resin lid enhances sealing and prevents lid detachment by positioning the support portion above the engaging portion, addressing container breakage and maintenance issues.

JP2026002286APending Publication Date: 2026-01-08PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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Patent Information

Application Number
JP2024100168
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-06-21
Publication Date
2026-01-08

AI Technical Summary

Technical Problem

Resin and glass containers break under high physical impact during grinding hard foods, while metal containers have a lower frictional force leading to lid detachment issues, and adding a rubber gasket increases parts and maintenance complexity.

Method used

A metal container with a resin lid featuring engaging portions and a support portion on the inner surface, where the support portion is positioned above the lowest engaging portion, enhancing sealing and preventing lid detachment.

Benefits of technology

Improves sealing performance without additional parts, preventing lid floatation and detachment, and simplifies maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure provides an electric cooking device having good maintainability and excellent sealability.SOLUTION: An electric cooking device according to the present disclosure includes a metal container that contains an object to be cooked, and a resin lid that is attachable to and detachable from the container. The lid has at least one engaging part to be engaged with the container. The container has a support on an inner surface. When the lid is attached to the container, the support portion is configured to be located above the engaging portion located at the lowest position among the at least one engaging portion.SELECTED DRAWING: Figure 5
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Description

[Technical Field]

[0001] The present disclosure relates to an electric cooker. [Background technology]

[0002] Patent Document 1 discloses an electric cooker equipped with a container (cooking cup) and a lid (cup lid) having an engaging portion (packing) at the portion that engages with the container. Patent Document 2 discloses an electric cooker equipped with a stainless steel container. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2009 / 078068 [Patent Document 2] Japanese Utility Model Application Publication No. 60-126147 Summary of the Invention [Problem to be solved by the invention]

[0004] When grinding hard foods such as dried beans or spices using an electric cooker, the physical impact on the container is so great that containers made of resin or glass may break during use. Therefore, when grinding hard foods, containers made of metal are sometimes used. However, metal containers have a problem in that the frictional force at the contact point between the lid and the container is smaller than that of containers made of resin or glass, making the lid more likely to come off. To solve this problem, a separate rubber gasket is attached to the part of the lid that comes into contact with the container, making the lid less likely to come off. However, this increases the number of parts and reduces ease of maintenance.

[0005] The present disclosure provides an electric cooker that is easy to clean and has excellent sealing properties. [Means for solving the problem]

[0006] The electric cooker according to the present disclosure includes a metal container for containing food to be cooked and a resin lid that can be attached to and detached from the container, the lid having at least one engaging portion that engages with the container, and the container having a support portion on its inner surface, and when the lid is attached to the container, the support portion is configured to be located above the lowest engaging portion of the at least one engaging portion. [Effects of the Invention]

[0007] The electric cooker of the present disclosure can improve the sealing performance between the lid and the container without increasing the number of parts, thereby preventing the lid from floating or coming off the container during cooking, and also reduces the burden of maintenance for the user. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of an electric cooker according to a first embodiment; [Figure 2] 1 is a cross-sectional view of a lid according to the first embodiment; [Figure 3] 1 is a cross-sectional view of a container according to a first embodiment. [Figure 4] An enlarged cross-sectional view of the main part before the lid is attached to the container [Figure 5] An enlarged cross-sectional view of the main part after the lid is attached to the container DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described in detail with reference to the drawings. However, unnecessary detailed description may be omitted. For example, detailed description of well-known matters or redundant description of substantially the same configuration may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art.

[0010] The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0011] (Embodiment 1) Hereinafter, the first embodiment will be described with reference to FIGS.

[0012] [1-1.Configuration] [1-1-1. Configuration of electric cooker] The electric cooker 100 has a main body 200 and a mixer unit 300. The main body 200 has an operation unit 210 and a motor (not shown). The mixer unit 300 has a container 310, a cutter 320, and a lid 330.

[0013] The operation unit 210 accepts operations by the user. The operation unit 210 may be a button switch, a rotary switch, or a touch panel. The user uses the operation unit 210 to, for example, drive the electric cooker 100 or adjust the rotation speed of the cutter 320.

[0014] The motor transmits power to the cutter 320 by operating the operation unit 210, thereby driving the cutter 320.

[0015] Container 310 is cylindrical with a bottom and has an opening at the top. Container 310 is detachable from main body 200. Container 310 has a storage section 311 and a handle section 312. Storage section 311 stores food to be cooked, such as vegetables, fruits, beans, and spices. Handle section 312 is provided so that a user can grip container 310, and protrudes outward from storage section 311. Container 310 has a support section 313 on the inner surface of storage section 311. Support section 313 is a convex section that is formed around the inner periphery of storage section 311. Container 310 is made of stainless steel (SUS).

[0016] Cutter 320 rotates within storage section 311 to cut and stir the food to be cooked within storage section 311 .

[0017] The lid 330 covers the opening of the container 310. The lid 330 is disk-shaped and is removably attached to the container 310. The lid 330 has an upper surface 331 that covers the opening of the container 310, a flange 332 that extends horizontally from the upper surface 331, and a seal 333 that extends downward from the contact point between the upper surface 331 and the flange 332. The flange 332 comes into contact with the upper end of the opening of the container 310 when the lid 330 is attached to the container 310. The lid 330 has engagement portions 334a to 334c that engage with the container 310 to seal it. The engagement portions 334a to 334c are provided to extend horizontally from the outer periphery of the seal 333. A plurality of engagement portions may be provided at intervals in the vertical direction. The lid 330 is made of a resin that can be easily molded into a thin wall, such as low density polyethylene (LDPE) or linear low density polyethylene (LLDPE).

[0018] [1-1-2. Engagement of the container and the lid] The operation of engaging the container 310 and the lid 330 will be described below with reference to FIGS.

[0019] 4 shows the state before lid body 330 is attached to container 310. When a user pushes lid body 330 in from the state shown in FIG. 4, support portion 313 and engagement portion 334 come into contact, but because engagement portion 334 is elastic, it moves over support portion 313 and engages with container 310. When engagement portion 334 moves over support portion 313, the user feels a click, and is able to recognize that lid body 330 has been attached to container 310.

[0020] FIG. 5 shows the state after lid 330 has been attached to container 310. At this time, support portion 313 is positioned above the lowest engaging portion among multiple engaging portions 334a-c. Specifically, support portion 313 is positioned below engaging portion a334a and above engaging portions b334b and c334c among the three engaging portions 334a-c. As a result, even if lid 330 floats upward, engaging portion b334b catches on support portion 313, thereby preventing lid 330 from floating up or coming off container 310. Furthermore, even if engaging portion b334b climbs over support portion 313 and lid 330 floats up, engaging portion c334c catches on support portion 313, thereby preventing lid 330 from coming off container 310.

[0021] Furthermore, the positional relationship between support portion 313 and multiple engagement portions 334a-c is not limited to this. Support portion 313 may be located higher than engagement portion a 334a. In this case, when container 310 and lid 330 engage with each other, the engagement occurs over the three engagement portions 334a-c, which further improves sealing performance and prevents lid 330 from floating or coming off container 310.

[0022] Furthermore, the support portion 313 may be located below the engagement portion b 334b, which reduces the force required by the user to remove the lid.

[0023] The number of engaging portions 334 of the cover 330 does not have to be three, and one or more will suffice.

[0024] [1-2.Effects] As described above, this embodiment includes a metal container 310 for containing food to be cooked, and a resin lid 330 that can be attached to and detached from the container 310. The lid 330 has at least one engaging portion 334 that engages with the container 310, and the container 310 has a support portion 313 on its inner surface. When the lid 330 is attached to the container 310, the support portion 313 is configured to be located above the lowest engaging portion 334 of the at least one engaging portion 334.

[0025] This allows engagement portion 334 to be formed on lid 330, reducing the number of parts and improving ease of maintenance. In addition, because engagement portion 334 can be configured to hook onto support portion 313, sealing is improved and lid 330 can be prevented from floating or coming off container 310 during cooking.

[0026] Furthermore, as in this embodiment, the support portion 313 is formed along the inner periphery of the container 310 .

[0027] This allows the user to feel a click when the engaging portion 334 overcomes the support portion 313 when attaching the lid body 330 to the container 310, allowing the user to recognize that the lid body 330 has been successfully attached to the container 310.

[0028] In this embodiment, the support portion 313 is a protrusion.

[0029] This allows the engagement portion 334 to be configured to catch on the protrusion, improving the sealing performance and preventing the lid 330 from floating or coming off the container 310 during cooking.

[0030] Furthermore, as in this embodiment, the cover 330 has a plurality of engagement portions 334 .

[0031] This increases the contact area between the lid 330 and the container 310 compared to when there is only one engaging portion 334, further improving the sealing performance and preventing the lid 330 from floating or coming off the container 310. (Other embodiments) As described above, the first embodiment has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. Furthermore, it is also possible to combine the components described in the first embodiment above to create new embodiments.

[0032] Therefore, other embodiments will be exemplified below.

[0033] In the first embodiment, support portion 313 is a convex portion, but is not limited to this. Support portion 313 may be a concave portion. This allows engagement portion 334 to be held by the concave portion, improving sealing performance and preventing lid 330 from floating or coming off container 310 during cooking.

[0034] Furthermore, in the first embodiment, the container 310 is made of stainless steel (SUS), but the container 310 may be made of iron, aluminum, copper, etc. In either case, the same effects as those obtained by the container 310 made of stainless steel (SUS) can be obtained.

[0035] It should be noted that the above-described embodiments are intended to illustrate the technology of the present disclosure, and various modifications, substitutions, additions, omissions, etc. may be made within the scope of the claims or their equivalents. [Industrial Applicability]

[0036] The present disclosure is applicable to electric cookers, particularly mixers, food processors, wet grinders, and the like. [Explanation of symbols]

[0037] 100 electric cooker 200 units 210 Operation section 300 Mixer Unit 310 Container 311 Storage Unit 312 Toride 313 Support part 320 Cutter 330 Lid 331 Top part 332 Flange 333 Seal part 334 Engagement part 334a Engagement part a 334b Engagement part b 334c Engagement part c

Claims

1. a metal container for containing food to be cooked; a detachable resin lid body for the container, the lid has at least one engaging portion that engages with the container, The container has a support portion on an inner surface thereof, An electric cooker, wherein when the lid body is attached to the container, the support portion is positioned above a lowest engaging portion of the at least one engaging portion.

2. The electric cooker according to claim 1 , wherein the support portion is formed around the inner periphery of the container.

3. The electric cooker according to claim 1 , wherein the support portion is a protrusion.

4. The electric cooker according to claim 1 , wherein the lid has a plurality of engaging portions.

Citation Information

Patent Citations

  • Electric cooker

    JP1985126147U

  • Electric cooking device

    WO2009078068A1