JPS6158615A - Production of transparent lid for 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] [Publication II of Midwifery I + Field] Misfire: 1: Relating to a method for manufacturing transparent lids for pots, pots, steamers, frying pans, etc.

"Conventional TU technique and its problems" A lid body made of transparent glass is well known so that the cooking status of food can be seen through. Conventionally, the lid body is generally made of glass. There's a tip.

Similar to glass bottles, molten glass is poured into a mold and molded, but the lids formed using this method had poor transparency and lacked strength and heat resistance. .

Therefore, as disclosed in Japanese Patent Publication No. 57-9806, a lid body of a desired shape having an engaging edge on the outer periphery hs of the transparent part is heated and curved by heating a transparent plate glass made of soda-lime glass as the main raw material. There is a lid for a cooker that attempts to solve the above problems by molding and cooling the glass and forming the entire lid from tempered glass. A ring made of rubber, synthetic resin, metal, etc. was fixed to protect the outer periphery from breakage or damage. There are problems such as the problem that boiling liquid or dirt seeps into the inside, making it difficult to clean, which makes it unsanitary, and the product price increases due to high processing costs.

[Means for Solving the Problems] Therefore, the present invention involves cutting a transparent plate glass whose main material is soda lime glass into a desired shape, and heating and melting the outer peripheral edge of the plate glass to form a protective edge. This is a Jj method for manufacturing a transparent lid for a cooker, which is characterized by:

"Example 1 Transparent 2 molded using soda lime glass as the main raw material,
- The glass to be handled is also cut into a desired shape and size, such as circular or elliptical, to form the plate glass 1. Next, as shown in FIG. 1, the outer edge of the temporary glass 1 is heated to about 800°C by blowing the flame of the burner 2 to melt the glass material on the outer edge, thereby making it rounder. A protective edge 3 is formed. After that, the entire plate glass 1 is
The plate glass 1 is heated to about 00° C. and placed on a spherical mold (not shown), and the plate glass 1 is curved along the spherical surface of the mold. Then, by applying cold air to rapidly cool the plate glass l, it is made into a heat-resistant tempered glass and a spherical lid shown in FIG. 2 is obtained. 4 is a small hole made in the center of this lid body with a screw 5.
He is the eldest child of 11 years old. Since the protective edge 3 is rounded, it is safe and does not injure the fingertips during handling, and 1. It increases the mechanical strength of the entire lid body and prevents it from being damaged in the event of an impact. In addition, transparent plate glass whose main raw material is soda lime glass can be heat-treated as described in 1-1 to achieve tJ of 1°, which has excellent strength and heat resistance f1, and has a smooth surface of 61 and transparency. Since it is expensive, if you use it as a lid for a cooking device, you can check the cooking status inside the container. :Ideal for doing.

In addition, in the approximately square-shaped transparent cover shown in FIG. 3, the protection B3 is raised upward as shown in FIG. It becomes. Immediately after heating the outer periphery of the glass plate 1 with a burner or the like, that part is placed on a knurling roll 6 as shown in FIG.
．． By pressing the plate glass 1 against the glass plate 7 and rotating the plate glass 1, such a shape and pattern can be displayed. Further, in FIG. 6, a downwardly hanging protective edge 3 is formed, and the outer circumferential surface 3a and upper surface 3b thereof are provided with streak-like irregularities in the same manner as in FIG. 4. As described above, in the present invention, the protective edge 3 is not limited to a rounded shape, and can be processed into various shapes. In addition, the body shape of the lid body is not limited to circular, but rectangular, square, ′:[
Of course, various external shapes such as hexagonal and elliptical shapes can be manufactured.

``Effects of the invention'' (A protective edge is integrally formed by heating and melting the periphery of the glass, which makes it safe to handle, and also strengthens the entire glass to prevent breakage.Also, it has high transparency. It is easy to check the cooking status of the food, it is easy to clean, and it is also inexpensive to manufacture.
I-A? There are 111 points: /, ;.

4. Inside the drawing 2. Fig. 1 (J is a perspective view showing the manufacturing method of an embodiment of the present invention,
FIG. 2 is a longitudinal cross-sectional view of a transparent lid manufactured by this method, FIG. 3 is a plan view showing another example of the transparent lid, FIG. 4 is an enlarged cross-sectional view taken along the line X-X of FIG. FIG. 5 is a schematic cross-sectional view showing a method of forming the protective edge shown in FIG. 4, and FIG. 6 is a cross-sectional view showing another embodiment of the protective edge.

1... Plate glass, 2... Burner, 3... Protective edge.

Patent applicant Kira Shiko Co., Ltd. Agent Patent attorney Takeshi Ito “Niaj:”
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Figure 3 Figure 5

Claims (1)

[Claims] A transparent lid for a cooker, characterized in that a transparent plate glass made mainly of soda lime glass is cut into a desired shape, and the outer periphery of the plate glass is heated and melted with a burner to form a protective rim. Production method.