JPH0159542U

JPH0159542U -

Info

Publication number: JPH0159542U
Application number: JP15430987U
Authority: JP
Priority date: 1987-10-08
Filing date: 1987-10-08
Publication date: 1989-04-14
Anticipated expiration: 2002-10-08
Also published as: JPH0517000Y2

Description

[Brief explanation of the drawing]

第１図乃至第５図は本考案の第１実施例を示す
もので、第１図は金属製魔法瓶の半断面正面図、
第２図は排気孔と蓋部材の密着状態を示す一部拡
大断面図、第３図は底面図、第４図は製造工程を
示す一部拡大断面図、第５図は底面図、第６図乃
至第８図は本考案の第２実施例を示すもので、第
６図は金属製魔法瓶の半断面正面図、第７図は排
気孔と蓋部材の密着状態を示す一部拡大断面図、
第８図は底面図、第９図は従来の金属製魔法瓶の
半断面正面図、第１０図は従来の排気孔と蓋部材
の密着状態を示す一部拡大断面図、第１１図は従
来の製造工程を示す底面図、第１２図は一部拡大
断面図である。１０……金属製魔法瓶、１１……外筒、１３，
３０……底部材、１４……内筒、１５……空間、
１６，３１……排気孔、１７，３０ｂ……平坦部
、１８……蓋部材、１９……固形蝋材、２０，３
２……凸部。 1 to 5 show a first embodiment of the present invention, and FIG. 1 is a half-sectional front view of a metal thermos flask;
Fig. 2 is a partially enlarged sectional view showing the close contact between the exhaust hole and the lid member, Fig. 3 is a bottom view, Fig. 4 is a partially enlarged sectional view showing the manufacturing process, Fig. 5 is a bottom view, and Fig. 6 is a partially enlarged sectional view showing the close contact between the exhaust hole and the lid member. 8 to 8 show a second embodiment of the present invention, FIG. 6 is a half-sectional front view of a metal thermos flask, and FIG. 7 is a partially enlarged sectional view showing the close contact between the exhaust hole and the lid member. ,
Fig. 8 is a bottom view, Fig. 9 is a half-sectional front view of a conventional metal thermos flask, Fig. 10 is a partially enlarged sectional view showing the close contact between the conventional exhaust hole and the lid member, and Fig. 11 is a conventional metal thermos flask. A bottom view showing the manufacturing process, and FIG. 12 are partially enlarged sectional views. 10...Metal thermos flask, 11...Outer cylinder, 13,
30... Bottom member, 14... Inner cylinder, 15... Space,
16, 31... Exhaust hole, 17, 30b... Flat part, 18... Lid member, 19... Solid wax material, 20, 3
2...Protrusion.

Claims

[Scope of utility model registration request]

A metal outer cylinder and an inner cylinder are joined together at the mouth with a space provided in the body and the bottom, and the air in the space is sucked and exhausted through an exhaust hole provided at the bottom of the outer cylinder to create a vacuum.
In a metal thermos flask in which the exhaust hole is sealed with a lid member, a flat portion is provided around the exhaust hole that becomes approximately horizontal when the thermos is inverted, and the lid member seals the exhaust hole. A metal thermos flask characterized by a plurality of convex portions formed on a slightly outer flat portion.