| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact bottle type canteen which has a certain degree of durability which is lower than that of a durable type canteen, and can be used repeatedly as a canteen substitute.SOLUTION: A compact bottle is composed of a body 2, a plug 3, and a cap 4. The body 2 has an opening base portion 21 equipped with a screw on an inside wall. The plug 3 has an upper plug portion 31, a collar portion 33, a lower plug portion 34, and a liquid channel 35 penetrating all of them. Inside walls of the upper plug portion 31 and the lower plug portion 34 respectively have screws 36 and 37. The cap 4 is equipped with a screw on an inside wall. The screw 36 of the upper plug portion 31 engages with the screw of the cap, and the screw 37 of the lower plug portion engages with the screw 23 of the body. |
