| 摘要 |
PROBLEM TO BE SOLVED: To provide a straw which can be sanitarily held with the straw kept in a bottle and with a lid covering the bottle without spilling any content by solving problems that a person who drinks the content is choked with the content in his when he is in an upwardly inclined posture, or it is difficult for him to drink a predetermined quantity of the content since he must drink the content with the bottle in an inclined condition, and the straw is straight and no lid can cover the bottle because the straw is protruded from the bottle mouth in a non-sanitary manner, and the straw must be separately stored. SOLUTION: The deflection is generated at a corrugated portion of the straw by deforming an arbitrary portion of the straw in a corrugated shape so that the overall length can be changed. The straw having the corrugated shape is prevented from coming off out of the bottle, and stabilized in the bottle by arbitrarily setting the size and the number of uneven portions of the corrugation.
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