JPS59103631A - Cooker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a surface treatment of a lid of a cooking device such as a hot plate, a frying pan, or an electric pot, and a surface treatment of a portion that the lid contacts.

The cooking device is generally composed of a main body having a cooking surface and a lid covering the main body, and the main body and the lid are each provided with a handle for operation. Traditionally, materials such as aluminum, stainless steel plate, cast iron, heat-resistant glass, and wood have been used for the cover body depending on the purpose of each cooker. For other materials, it was common to apply surface treatments such as anodic oxide coating to aluminum and enamel to cast iron to prevent corrosion and rust. However, steel plate, which is a cheap material, has poor rust prevention properties, so it is less often used than other materials.

The present invention is to provide a cooker equipped with a lid made of iron plate material that is inexpensive and has sufficient durability for practical use, in response to recent social demands for resource saving and energy saving. As an example, a hot plate will be described with reference to the accompanying drawings.

In the figure, 1 is a lid and 2 is a main body. The main body 2 has a cooking surface 3, a placing surface 4 on which the lid 1 is placed, and a raised surface 5 formed around the cooking surface 3 to prevent food from falling and to position the lid 1. ing. The lid body 1 is made of iron plate base 6
A metal plating layer 7 such as aluminum, chrome, tin, zinc, nickel, etc. or a chemical conversion coating layer 7 such as a phosphoric acid coating or a chromic acid coating is formed on the surface of the material. A resin paint film 8 such as urethane resin paint is formed.

On the other hand, the mounting surface 4 and the rising surface 5 of the main body 2, which the lid 1 comes into contact with, are made of polytetrafluoroethylene, which is a low-friction resin.

Tetrafluoroethylene-hexafluoride polypropylene copolymer,
A coating 9 of a fluororesin composition such as tetrafluoroethylene-ethylene copolymer is formed.

In the above configuration, as a result of a practical use test, some friction scratches and dents were observed on the resin paint coating 8 on the abutting surfaces of the lid 1 and the main body 2, but the metal plating layer or chemical conversion coating layer 7 None reached this level, and therefore, there was no rusting from the iron plate base 6. The same thing happened when the lid was placed on the placement surface 4 on the upright surface 6 as shown in FIG.

By the way, as a result of actual use tests, the plating layer of conventional cookers with a lid body made of iron plated with metal plating and an aluminum lid body was damaged by friction and dents. Rust was observed from the iron plate base.

As is clear from the above description of the embodiments, according to the present invention, it is possible to provide a cooking utensil that does not cause rust using an inexpensive iron plate base material, and its practical value is great.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a hot plate showing one embodiment of the present invention, FIG. 2 is a sectional view of the main part thereof, and FIG. 3 is a sectional view of the main part of another embodiment of the invention. 1... Lid body, 2... Main body, 4...
...Placement surface, 6...Rise surface, 6...Steel plate base, 7...Metal plating layer and chemical conversion coating layer, 8...Resin Paint film, 9...Fluororesin composition film. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure! Figure 3

Claims (1)

[Claims] A lid body is formed by performing primary treatment such as metal plating or chemical conversion coating on the surface of the iron plate base, and then secondary treatment such as a resin paint coating, and a fluororesin composition coating is formed on the contact area of this lid body. A cooking device comprising a main body.