JPS58190413A - Rice cooking and boiling utensil and production thereof - 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 boiling and boiling utensil with a new configuration and a method for manufacturing the same.9. Conventionally, in boiling and boiling utensils that require heating, such as pots and kettles, stainless steel plates have been used. Alternatively, it is widely known that the vessel body is formed from an iron plate and the bottom or peripheral surface of the vessel is plated with copper.However, as it requires a plating process, the equipment and manufacturing costs are high. There was a drawback that the mating part would peel off or rust during use.

Therefore, the present invention eliminates such a copper plating process and integrates the steel material into the bottom and circumferential parts of the vessel body through a simple manufacturing process, resulting in a boiler that is inexpensive, aesthetically pleasing, and highly practical. Its purpose is to provide cooking utensils.

The manufacturing method of the present invention will be explained in the process order V. 4゜1 The outer vessel body (1
). The bottom part (2) of this outer vessel body (1) is
1° This bottom part (2
) is -! A large number of through holes (3) are bored.

On the other hand, an inner container body (4) made of stainless steel plate or iron plate is prepared, having an arbitrary size and having a vertically shaped periphery. The bottom surface portion (5) of this inner vessel body (4) has a raised bottom shape that bulges slightly due to internal force.

The height of both the outer and inner organs (41) is that the inner organ (4) is higher than the outer organ (1) (see Figure 1).
2. Insert the inner container (4) into the outer container (1) and fit them together. This is placed on the mold (a) of soil for the device to be manufactured. Since the vessel to be molded with this mold (a) has a circumferential surface that bulges out into a rounded curved surface, a mold (a) matching the shape is prepared. (Second
(See figure) , 3 In this state, a mold with rubber is press-fitted into the inner vessel body (41) and it is inflated.Then, the inner vessel body (4) and the outer vessel body (1) are simultaneously integrated with each other due to this inflation pressure. It swells and is molded into a predetermined swollen shape by the mold (a). (See Figure 3) During this pressure molding, the vessel body fi, which is aligned with the inside and outside, is
l (Air between bottom part 12+ +5l of 4-1 4
, it comes to pass through the through holes (3) in the bottom part (2) of the outer vessel body (1). .

, 1 The instrument is manufactured in the shape shown in Fig. 4. In Figure 3, (1) is a copper outer 11
111 The edge of the vessel body (1) is shown, and this upper edge is attached so as to be located at the upper peripheral surface (A1) exceeding the maximum bulging part (6) of the inner vessel body (41), Both internal and external organs +11
+4l-)) The peripheral surface is tightly fixed to the integral part 1 in the bulged state. .

By the way, the bottom part (2) of the outer organ body (1) among the bottom parts of both the inner and outer organ bodies ill +41 should be slightly bulged upwards in consideration of the degree of expansion of the copper plate, or it should be made Q↓ when not in use. Outside of this (11!+1) the bottom part (2) of the vessel (1) will return to the cooling V (therefore the horizontal position (see the chain line in Figure 3)) 1, 2 If this raised bottom is not formed in advance When the copper plate is cooled, this bottom part protrudes outward from the bottom surface of the water tank, resulting in an unstable state in which the bottom part cannot be grounded to the water body.

When the bottom part (2) of this outer vessel body (1) is heated during use, the copper plate in this part expands again and -F
The inner container body (4) extends toward the bottom surface (5) of the inner container body (4).

In addition, a through hole (3) provided in the bottom (2) of the outer vessel body (1)
)... helps in heating conduction.

Since the present invention manufactures a predetermined device by such a manufacturing method, firstly, the upper edge of the outer vessel made of copper has an arbitrary shape beyond the top of the rounded bulge of the inner vessel made of stainless steel or iron. Since it can be attached at the same position, it is possible to securely fix the inner and outer double bodies without welding or other special adhesive means. Since they are in close contact with each other on the entire surface, they can be integrated without any gaps, but the bottom part is formed at the bottom of the hinge in consideration of the expansion of the copper plate during heating during use. It has become possible to handle boiling and boiling utensils without inconvenience and with peace of mind during use.Secondly, the utensils are constructed from double molded metal plates inside and outside, and the outer body is made of copper. The effects of this are extremely large, such as the fact that it is a device with good thermal conductivity and is resistant to scorching, so it retains heat well, and thirdly, it can increase the product value by giving it a sense of solidity and beauty as a whole. It is something.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Fig. 1 is a front sectional view of the two inner and outer containers to be prepared, Fig. 2 is an IF sectional view during molding,
FIG. 3 is a front sectional view after molding, and FIG. 4 is a perspective view of the finished product. Patent Applicant: Sugiyama Metal Co., Ltd. 1 Figure 4 iI 2 Figure Hand-cut Calligraphy (Eyes) 6 m4 Figure Amendment J Elephant Patent Application No. 1987-072779 No. 3, Relationship with the Person Who Filed Supplement + E Case Patent Applicant 4 , Agent 5, the number of claims of the invention that is increased by the amendment (Part of the specification) Drawings (supplementary), Contents of the amendment (l) The statement in the section "Claims 1" on pages 1 to 2 of the specification. , correct as shown in the attached sheet. ) Next to ``1 Unaru 5'' in the 5th line from the bottom of the same page 4, it says ``If there is any concern regarding manufacturing technology regarding the tight fixation due to this bulge, please use the auxiliary outer upper edge portion. You may apply welding to it.'' (3) In the fifth line from the bottom of page 5, the phrase "welding and other" is amended to read "Usually welding and other." -) In the third line from the bottom of page 6, the phrase "1, which is a perspective view" was replaced with "perspective view," Figure 5 is an IF sectional view of another example of the pot, and Figure 6 is a bottom view of the same as above. ” is the supplementary IF. 5) Drawings Figures 5 and 6 shall be supplemented as shown in the attached sheet. Yama A boiling utensil with a copper exterior and stainless steel interior. A boiling utensil characterized by the fact that Cooking utensils. A manufacturing method for copper outer shells in which the circumferential surface with punched holes is vertical.

Claims (3)

[Claims] (1) In a boiling device with a copper body on the outside and a stainless steel or iron body on the inside, the upper edge of the outer copper body is the apex of the rounded bulge of the inner stainless steel or iron body. A boiling and boiling utensil characterized in that it is installed at an upper position beyond the 100°C and is integrally configured. (2) The boiling and boiling utensil described in claim 1, wherein the bottom portions of both the inner and outer cylindrical bodies are slightly bulged inward. (3) Inside the outer copper body, the bottom part bulges inward slightly and the circumferential surface with air vent holes is vertical. A vertical inner container made of stainless steel or iron is inserted, and the height of this inner container is higher than that of the front outer container. (The peripheral surface of the cylindrical body is pressurized and expanded outward to form it, and the edge of the outer vessel body is fixed at any 1-side position beyond the peak of the rounded bulge of the inner vessel body.) A method of manufacturing boiling and boiling utensils.