Detachable heating lid

The detachable heating lid with dual actuating means ensures safe operation by preventing power when misused and adapts to various utensil sizes, addressing safety and adaptability issues of existing lids.

JP7777958B2Active Publication Date: 2025-12-01SEB SA
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Patent Information

Application Number
JP2021177529
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-10-29
Filing Date
2021-10-29
Publication Date
2025-12-01
Estimated Expiration
2041-10-29

AI Technical Summary

Technical Problem

Existing detachable heating lids do not provide sufficient safety as they can be placed on a counter without interrupting power supply to the electric heating element, and are not adaptable to kitchen utensils of varying diameters.

Method used

A detachable heating lid with a safety device featuring two actuating means at different distances from the edge, allowing power supply to the electric heating element only when the lid is properly positioned on compatible kitchen utensils, and including a return mechanism to default to a safe mode.

Benefits of technology

Ensures safe operation by preventing power to the heating element when improperly placed, and allows compatibility with kitchen utensils of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

To propose an attachable and detachable heating lid capable of accommodating cooking tools having different sizes and electric cookers whose containers are different in size.SOLUTION: The present invention discloses an attachable and detachable heating lid (1) including an electric heating element (3); and a safety device (10) including first actuation means (11) arranged at a first distance (D1) from a side edge (6) of the attachable and detachable heating lid (1), and second actuation means (12) arranged at a second distance (D2) from the side edge (6) of the attachable and detachable heating lid (1). The safety device (10) includes a first operation mode (F1) in which power supply to the electric heating element (3) is allowed when the first actuation means (11) or the second actuation means (12) is arranged at a second storage position (P21, P22), and a second operation mode (F2) in which power supply to the electric heating element (3) is not allowed when the first actuation means (11) or the second actuation means (12) is arranged at a first static position (P11, P12).SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a detachable heated lid and an electric cooker equipped with such a detachable heated lid. [Background technology]

[0002] Detachable heating lids suitable for heating food placed in a container of a kitchen utensil or electric cooker are known, and the container of the kitchen utensil or electric cooker has a predetermined diameter suitable for receiving the detachable heating lid.

[0003] The removable heated lid contains an electric heating element, a movable handle, and a safety device in the form of a switch.

[0004] When a user grasps the removable heated lid by the movable handle, the movement of the movable handle activates a switch that cuts off power to the electric heating element.

[0005] Conversely, when the user is not grasping the movable handle of the removable heated lid, positioning the movable handle causes the switch to be in an operational state that allows power to be applied to the electric heating element.

[0006] However, such removable heated lids do not provide sufficient safety as a user may place the removable heated lid on the surface of the counter without interrupting the power supply to the electric heating element.

[0007] Furthermore, Patent Document 1 describes a detachable heating lid suitable for heating food placed in a kitchen utensil having a predetermined diameter. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] French Patent Application Publication No. 2984713 Summary of the Invention [Problem to be solved by the invention]

[0009] The removable heated lid contains an electric heating element, a fixed handle, and a safety device in the form of a switch.

[0010] When a user grasps the removable heated lid by the fixed handle and places it on the kitchen utensil, the end of the kitchen utensil interacts with the switch, changing it from an activated state that prevents power from being supplied to the electric heating element to an activated state that allows power to be supplied to the electric heating element.

[0011] This solution is safer because power to the electric heating element is only permitted when the removable heated lid is placed on a kitchen appliance designed to accept the removable heated lid.

[0012] However, this detachable heating lid is only suitable for working with kitchen utensils having the same predetermined diameter.

[0013] Therefore, this detachable heating lid cannot be adapted to any diameter other than that of the container of the intended kitchen utensil or electric cooker.

[0014] The object of the present invention is to overcome all or some of the above mentioned drawbacks. [Means for solving the problem]

[0015] To this end, the present invention relates to a removable heated lid comprising: a safety device comprising an electric heating element; and a safety device having a first actuating means disposed at a first distance from a side edge of a removable heated lid and having a first rest position and a second storage position, wherein the safety device has a first operating mode in which power supply to the electric heating element is permitted when the first actuating means is disposed at the second storage position, and a second operating mode in which power supply to the electric heating element is not permitted when the first actuating means is disposed at the first rest position; the removable heated lid has a second actuating means disposed at a second distance from the side edge of the removable heated lid that is different from the first distance from the side edge at which the first actuating means is disposed, and having the first rest position and the second storage position; the safety device is in the first operating mode when the second actuating means is disposed at the second storage position, and is in the second operating mode when the second actuating means is disposed at its first rest position. This arrangement allows the detachable heating lid to be compatible with kitchen utensils of different sizes and electric cookers with different sized containers.

[0016] According to one aspect of the invention, the first actuation means and the second actuation means are made in a single piece, said piece being preferably translatable.

[0017] This arrangement allows for simplified manufacture of the first and second actuation means of the safety device.

[0018] According to one aspect of the invention, the first actuation means and the second actuation means are made of different parts, each of said parts being independently movable, preferably translatable.

[0019] According to a first embodiment of the present invention, the first actuation means is formed by a first shoulder of a movable part of the detachable heated lid, and the second actuation means is formed by a second shoulder of the movable part of the detachable heated lid, the second shoulder being adjacent to the first shoulder of the movable part.

[0020] According to a second embodiment of the invention, the movable part is a rod, the first actuation means are formed by an end of the rod and the second actuation means are formed by an elbow of this same rod.

[0021] This arrangement allows you to create two interaction points from the same rod.

[0022] According to one aspect of the invention, a safety device comprises a switch with a movable actuator, the movable part being arranged to activate the actuator when the first actuating means or the second actuating means moves from its first rest position towards its second retracted position.

[0023] According to one aspect of the invention, the safety device includes a switch with a movable actuator, the axis of movement of the switch actuator being located on the main axis of the rod.

[0024] This arrangement allows optimising the force on the movable switch actuator when the first actuation means or the second actuation means is actuated.

[0025] According to one aspect of the present invention, the first actuating means opens into a first fixed shoulder portion of the removable heated lid, and the second actuating means opens into a second fixed shoulder portion of the removable heated lid adjacent to the first fixed shoulder portion of the removable heated lid.

[0026] This arrangement allows for a simplified implementation of the first actuation means and the second actuation means.

[0027] According to one aspect of the invention, the safety device comprises return means for returning the first actuating means to its first position and for returning the second actuating means to its first position.

[0028] This arrangement causes the safety device to default to the second mode of operation.

[0029] According to one aspect of the present invention, the detachable heated lid includes two safety means arranged opposite to each other on the detachable heated lid.

[0030] The present invention also relates to an electric cooker equipped with the cooking vessel and the removable heating lid as described above.

[0031] According to one aspect of the present invention, the electric cooker has a pressure operation mode using a hot air cooker or a fixed lid connected to the main body of the electric cooker, and a non-pressure cooking mode using the detachable heating lid. [Brief explanation of the drawings]

[0032] The invention will be better understood from the following description, with reference to the accompanying schematic drawing, which shows, by way of non-limiting example, one embodiment of this detachable heated lid.

[0033] [Figure 1] FIG. 1 is a cross-sectional view of a detachable heating lid according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view of the removable heating lid of FIG. 1 with the outer edge removed. [Figure 3] FIG. 3 is a detailed cross-sectional view of a portion of the removable heated lid of FIG. 1 in a first mode of operation of the removable heated lid safety device according to the present invention. [Figure 4] FIG. 4 is a detailed cross-sectional view of a portion of the removable heated lid of FIG. 1 in a second mode of operation of the removable heated lid safety device according to the present invention. [Figure 5] FIG. 5 shows a detachable heating lid for an electric cooker. [Figure 6] FIG. 6 is a cross-sectional view of a detachable heating lid according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0034] As shown in Figures 1 and 2, the removable heated lid 1 comprises a body 2 in which an electric heating element 3 is arranged, and optionally a motor 4 and a fan 5 for forcing the generated hot air towards, for example, food contained in a kitchen utensil or electric cooker container.

[0035] As shown in Figures 1 to 4, the removable heated lid 1 also includes a safety device 10 that is positioned at a first distance D1 from the side edge 6 of the removable heated lid 1 and includes a first actuating means 11 that has a first rest position P11 and a second storage position P21.

[0036] 1 and 2, the removable heated lid 1 is provided with two safety devices 10 arranged opposite to each other on the removable heated lid 1. These safety devices 10 are identical.

[0037] According to the invention, the or each safety device 10 comprises a second actuating means 12 arranged at a second distance D2 from the side edge 6 of the removable heated lid 1. This second distance D2 is different from the first distance D1 from the side edge 6 of the removable heated lid 1 at which the first actuating means 11 is arranged.

[0038] Like the first actuation means 11, the second actuation means 12 also has a first rest position P12 and a second storage position P22.

[0039] Furthermore, the safety device 10 has a first operating mode F1 in which power supply to the electric heating element 3 is permitted when the first operating means 11 or the second operating means 12 is positioned in the second storage position P21, P22, and a second operating mode F2 in which power supply to the electric heating element 3 is not permitted when the first operating means 11 or the second operating means 12 is positioned in the first rest position P11, P12.

[0040] In the illustrated embodiment, the first actuating means 11 and the second actuating means 12 are made from a single part, so that when the first actuating means 11 moves from its first rest position P11 to its second storage position P21, the second actuating means 12 also moves from its first rest position P12 to its second storage position P22, and vice versa.

[0041] In the example shown, this part 20 is translationally movable.

[0042] Other embodiments are envisaged in which the first actuation means 11 and the second actuation means 12 are made of different parts. Thus, actuation of the first actuation means 11 does not cause actuation of the second actuation means 12.

[0043] According to a first embodiment of the invention shown in Figures 1 to 5, the first actuation means 11 is formed by a first shoulder 7 of a translationally movable part 20 of the removable heated lid 1.

[0044] The second actuation means 12 is then formed by a second shoulder 8 of the translationally movable part 20 of the removable heated lid 1 .

[0045] The second shoulder 8 is adjacent to the first shoulder 7 .

[0046] The safety device 10 comprises means 16 for returning the first actuating means 11 and the second actuating means 12 to the first rest positions P11, P12.

[0047] Such a return means can consist, for example, of a helical spring 16 a arranged between a fixed part of the body 2 of the removable heated lid 1 and a part of the movable part 20 .

[0048] Furthermore, the safety device 10 comprises a switch 15 consisting of a translatable actuator 15a.

[0049] Of course, other electrical devices that may have the ability to interrupt the flow of electrical current may be used in place of switch 15 without departing from the scope of the present invention.

[0050] The translatable part 20 is provided with a tab 21 which extends to the moveable actuator 15a of the switch.

[0051] In this configuration, the safety device 10 is in a first operating mode F1 in which power supply to the electric heating element 3 is permitted.

[0052] Conversely, when the first actuation means 11 or the second actuation means 12 is in the first rest position P11, P12, the actuator 15a of the switch 15 is not actuated.

[0053] In this configuration, the safety device 10 is in a second operating mode F2 in which power supply to the electric heating element 3 is not permitted.

[0054] According to a second embodiment of the invention shown in FIG. 6, the part 20 is still movable, in particular translatable, but is preferably formed by a rod 13 made of metal.

[0055] More specifically, the first actuation means 11 is formed by an end 13 a of this rod 13 , and the second actuation means 12 is formed by an elbow 13 b of this same rod 13 .

[0056] The safety device 10 is a switch 15 which is also made up of a translationally movable actuator 15a.

[0057] However, the axis of movement of the actuator 15 a of the switch 15 is arranged on the axis of movement of the first actuation means 11 , that is, on the axis of movement of the end 13 a of the rod 13 .

[0058] As shown in Figure 6, the first actuating means 11 opens into a first fixed shoulder 7 of the removable heated lid 1, and the second actuating means 12 opens into a second fixed shoulder 8 of the removable heated lid 1 adjacent to the first fixed shoulder 7 of the removable heated lid 1. Finally, the safety device 10 also comprises means for returning the first actuating means 11 and the second actuating means 12 to their first rest positions P11, P12.

[0059] Such a return means can consist, for example, of a helical spring arranged between the fixed part of the body 2 of the removable heated lid 1 and the mobile part of the rod 13 .

[0060] As shown in FIG. 5, the present invention also relates to an electric cooker 100 including a detachable heating lid 1 as described above according to one or other of the embodiments and modifications.

[0061] The electric cooker 100 may be a hot air cooker or a pressure cooker.

[0062] This electric cooker has a pressure operation mode with a fixed lid 101 and a non-pressure cooking mode with a removable heating lid 1.

[0063] When the removable heating lid 1 is placed on the cooking vessel 102, under the influence of the weight of the removable heating lid 1, the edge of the cooking vessel 102 switches the first operating means or the second operating means from their first rest positions P11, P12 to the second storage positions P21, P22 depending on the size of the cooking vessel 102 of the electric cooker 100.

[0064] As a result, the safety device 10 switches from the second operating mode F2, in which the supply of power to the electric heating element 3 is not permitted, to the first operating mode F1, in which the supply of power to the electric heating element 3 is permitted.

[0065] According to the present invention, the removable heating lid 1 associated with the electric cooker can also be used with kitchen utensils, typically pots, having dimensions different from those of the end of the container 102 of the electric cooker 100.

[0066] Of course, the invention is in no way limited to the described and illustrated embodiments, which are given by way of example only: modifications are possible, in particular the arrangement of the various elements and the substitution of technical equivalents, without departing from the scope of protection of the invention.

[0067] Therefore, the detachable heating lid 1 can have a shape other than a circle, particularly a shape suitable for the shape of the container of the electric cooker, such as a rectangle or a square.

Claims

1. the safety device (10) comprises an electric heating element (3); and a safety device (10) having a first actuation means (11) arranged at a first distance (D1) from a side edge (6) of a removable heating lid (1) and having a first rest position (P11) and a second storage position (P21), the safety device (10) having a first operating mode (F1) in which power supply to the electric heating element (3) is permitted when the first actuation means (11) is arranged in its second storage position (P21), and a second operating mode (F2) in which power supply to the electric heating element (3) is not permitted when the first actuation means (11) is arranged in the first rest position (P11), The removable heated lid (1) has the same safety device (10) arranged at a second distance (D2) from a side edge (6) of the removable heated lid (1) that is different from the first distance (D1) from the side edge (6) at which the first actuation means (11) is arranged, and has a second actuation means (12) having the first rest position (P12) and the second storage position (P22), characterized in that the safety device (10) is in its first operating mode (F1) when the second actuation means (12) is arranged in the second storage position (P22), and is in its second operating mode (F2) when the second actuation means (12) is arranged in its first rest position (P12).

2. 2. The removable heated lid (1) according to claim 1, wherein the first actuation means (11) and the second actuation means (12) are made of one movable part (20), which is preferably translatable.

3. 2. The removable heated lid (1) according to claim 1, wherein the first actuation means (11) and the second actuation means (12) are made of different parts, each of which is independently movable, preferably translatable.

4. 3. The removable heated lid (1) of claim 2, wherein the first actuation means (11) is formed by a first shoulder (7) of the movable part (20) of the removable heated lid (1), and the second actuation means (12) is formed by a second shoulder (8) of the movable part (20) of the removable heated lid (1), the second shoulder (8) being adjacent to the first shoulder (7) of the movable part (20).

5. 3. The removable heated lid (1) according to claim 2, wherein the movable part (20) is a rod (13), the first actuating means (11) is formed by an end (13a) of the rod (13), and the second actuating means (12) is formed by an elbow (13b) of this same rod (13).

6. 6. A removable heated lid (1) according to claim 2, claim 4 or claim 5, wherein the safety device (10) comprises a switch (15) with a movable actuator (15a), and the movable part (20) is arranged to operate the actuator (15a) when the first actuating means (11) or the second actuating means (12) moves from their first rest position (P11, P12) to their second storage position (P21, P22).

7. 6. A removable heated lid (1) according to any one of claims 4 to 5, wherein the first actuating means (11) opens into a first fixed shoulder (7) of the removable heated lid (1) and the second actuating means (12) opens into a second fixed shoulder (8) of the removable heated lid (1) adjacent to the first fixed shoulder (7) of the removable heated lid (1).

8. 8. The removable heated lid (1) according to any one of claims 1 to 7, wherein the safety device (10) comprises a return means (16) for returning the first actuating means (11) to its first position (P11) and for returning the second actuating means (12) to its first position (P12).

9. The removable heated lid (1) according to any one of claims 1 to 8, wherein the removable heated lid (1) is provided with two oppositely arranged safety means (10).

10. An electric cooker (100) comprising a cooking vessel (102) and a removable heating lid (1) according to any one of claims 1 to 9.

11. The electric cooker (100) according to claim 10, which is a hot air cooker or a pressure cooker having a pressure operation mode using a fixed lid (101) connected to the body of the electric cooker (100) and a non-pressure cooking mode using the detachable heating lid (1).

Citation Information

Patent Citations

  • FR02984713A1

  • Electrical cooking appliance, and related safety means

    FR2984713A1

  • Cooking device and components thereof

    US20200315389A1