JPH0361441B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the structure of a lid for a cooking utensil used in general households.

Conventional technology A conventional cooker of this kind is, for example,
As shown in Japanese Patent No. 41761, the structure was as shown in FIGS. 3 and 4.

In the figure, 1 is a cooking utensil main body, 2 is a lid that is rotatably supported on one side of the top opening of the cooking utensil main body 1 and covers the top opening, and 3 is an upper lid that forms the top surface of the lid 2. , 4 is a resin ring-shaped lid frame fixed to the outer periphery of the lower surface of the lid 2, 5 is a lower lid forming the lower surface of the lid 2, 6 is provided in the internal space of the upper lid 3 and the lower lid 5, A lid insulating material made of glass wool for increasing the thermal efficiency of the cooker, 7 is a reinforcing metal fitting fixed to the lid frame 4 with screws 8 and having a U-shaped cross section. The reinforcing metal fitting 7 is arranged perpendicularly to the direction in which the shaft 9 and the foot lever 10 are connected, and prevents deformation of the top cover 3 in the direction in which the reinforcing metal fitting 7 is located.

Problems to be Solved by the Invention However, in the above-mentioned conventional configuration, the reinforcing metal fitting 7 and the lid insulation material 6 are constructed as separate parts.
There are many parts and workability is poor. Moreover, glass wool, which is resistant to heat, is generally used as the lid insulation material 6, but this glass wool has many problems, such as the dust generated from it being harmful to humans.

Further, since glass wool requires a certain amount of air space in order to obtain a heat insulating effect, the lid 2 also requires a large space, and a considerable space is also required to accommodate the heat insulating material.

The present invention solves the above conventional problems,
To provide a lid body which increases the thermal efficiency of a cooking utensil without using a heat insulating material such as glass wool, and which causes extremely little deformation of the lid body.

Means for Solving the Problem In order to solve this problem, the present invention includes a side wall cylindrical lid insulation part that divides the internal space of the lid body and increases the thermal efficiency of the cooking utensil, and a lid insulation part that prevents deformation of the lid body. The deformation prevention metal fittings are formed as an integral sheet metal structure.

Effects According to this configuration, since the lid insulation material is in the form of a sheet metal, there is no need for a large air layer in the interior space of the lid body, and the interior space of the lid body is divided into two by the lid insulation part, which is a sheet metal shape having a cylindrical side wall. The double air layer increases the insulation effect. Moreover, since no insulating material such as glass wool is used, problems such as dust are eliminated, workability is improved, and the lid plate is integrated with the deformation prevention metal fittings and the lid insulating material to prevent deformation of the lid. Since the lid plate and the lower lid are fixed to the lid frame using the same screw, the number of parts and work steps are also reduced.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail based on FIGS. 1 and 2.

In the figure, 11 is a cooking utensil main body, 12 is a lid body pivotably supported on one side of the top opening of the cooking utensil main body 11 to cover the top opening, and 13 is a lid body 12.
14 is a lid body 12 made of resin that constitutes the upper surface of the
A ring-shaped lid frame 15 made of resin is fixed to the outer periphery of the lower surface of the lid 12, and a lower lid constitutes the lower surface of the lid 12.

16 is provided in an internal space 17 formed between the upper lid 13 and the lower lid 15, and is connected to the lower lid 15 by screws 18.
It is also a sheet metal-like lid plate that is integrally fixed to the lid frame 14. The lid plate 16 includes a deformation preventing portion 21 having a U-shaped cross section and disposed perpendicularly to the direction in which the shaft 19 and the foot lever 20 are connected, and a sheet metal lid heat insulating portion 23 having a cylindrical side wall 22 on the outer periphery. It is formed as an integral structure.

The operation of the lid body 12 having the above configuration will be explained.
A lid plate 16 provided in the internal space 17 of the lid 12
Since the lid insulation part 23 is shaped like a sheet metal, this lid insulation part 2
The space occupied by 3 is small. Therefore, the internal space 17 of the lid 12 is divided into two without requiring a large space inside the lid 12.

The lower air layer 24 formed by the lower lid 15 and the lid body plate 16 is connected to the lid frame body 1 by the cylindrical side wall 22.
4, and is in a sealed state, and does not come into contact with the lid 13, which is an outer shell part. The lid 16 having such a lower air layer 24 has a double air layer with the upper air layer 25 formed by the upper lid 13 and the lid plate 16, thereby increasing the heat insulation effect. The cylindrical side wall 22 also has the effect of increasing the strength of the lid plate 16 itself.

Further, since the deformation prevention part 21 of the lid body plate 16 has a U-shaped cross section and is provided at right angles to the direction in which the shaft 19 and the foot lever 20 are connected, the deformation prevention part 21
The deformation of the lid body 12 is extremely small in the direction in which the lid body 12 is located.

Effects of the Invention As described above, according to the present invention, a lid plate having an integral structure of a lid heat insulating part and a deformation prevention part is installed inside the lid, and a cylindrical outer wall is provided in the sheet metal lid heat insulating part. This not only increases the strength of the lid plate itself, but also allows the lid to be disassembled into two sealed air layers, making it possible to achieve a small size and extremely excellent heat insulation effect.

Further, according to the present invention, the lid body will not be deformed due to the deformation preventing portion integrated with the lid body plate even if it receives heat generated during cooking or pressure inside the pot.

Moreover, the present invention does not use a heat insulating material such as glass wool, eliminates problems such as dust, and improves workability. In addition, the lid insulation part and the deformation prevention part are integrated, and the lower lid and the lid frame are By fixing the lid body plate with the same screw, it is possible to reduce the number of parts and the number of work processes.
Its practical value is great.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of a cooking utensil showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same essential parts, FIG. 3 is a partially cutaway front view of a conventional cooking utensil, and FIG. The figure is an exploded perspective view of the main parts. 11...Cooking utensil body, 12...Lid body, 13...
...Top lid, 14...Lid frame body, 15...Lower lid, 16...
... Lid body plate, 18 ... Screw, 21 ... Deformation prevention part,
22... Cylindrical side wall, 23... Lid insulation part.

Claims (1)

[Claims] 1 A cooking utensil main body, a lid body that is pivotally supported on one side of the top opening of the cooking appliance body and that covers the top opening, an upper lid that constitutes the top surface of this lid body, and a lower surface of the lid body. The lower lid that constitutes the upper lid, the resin ring-shaped lid frame located on the outer periphery of the lower surface of the upper lid, and the internal space formed by the upper lid and lower lid are divided, and the upper lid and lower lid are thermally insulated. A lid heat insulating portion having a cylindrical side wall and a lid plate having an integral structure with a deformation preventing portion for preventing deformation of the lid, the lower lid and the lid plate being the same with the lid frame body in between. A lid for a cooking utensil, characterized in that it is fixed to the lid frame with screws.