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    • 24. 发明专利
    • BASKET FOR CHEMICAL STRENGTHENING TREATMENT
    • JPH02107537A
    • 1990-04-19
    • JP25994788
    • 1988-10-15
    • SEIKO ELECTRONIC COMPONENTS
    • IIZUKA KAZUYOSHI
    • G04D3/08C03C21/00
    • PURPOSE:To obtain the title basket for applying stabilized, high-strength, and inexpensive treatment to a polished and finished timepiece cover glass without deteriorating the appearance and quality of the glass by forming the basket into an elastic structure for holding the periphery of the glass by point contact. CONSTITUTION:The holder 2 is formed from a corrugated SUS wire 3 and a straight SUS wire 4, and plural holders are fixed to the basket main body 1. The outside of the top of the wire 3 is spot-welded to the wire 4. Both ends of the two sets of holders 2 are welded to bolts 5 so that the wire 3 is placed outside to form a plane as shown in the figure. When the timepiece cover glass 7 is supported so that the side-edge ends 7a and 7b of the glass 7 are brought into contact with the bottom of the wire 3 of the one holder 2a and that of the adjacent holder 2b, respectively, and the lower end 7c of the glass is supported with the horizontal holder 2c vertically fixed to the bottom of the wire 3. When the basket 1 is used, the whole surface of the glass 7 is brought into contact with a salt bath, and the glass 7 is chemically strengthened with stabilized high strength.