| 摘要 |
This invention relates to a retractable sipper device for a portable thermos bottle comprising a cover body, a cover plate, a winder and a sipper. The cover body has an internal thread at the bottom for attachment to a thermos bottle case and consists of an upper compartment having a sipper opening in a side wall, and blocks, notches and slopes on the bottom. A winder which has a groove in the rim to accommodate the wound sipper, is fitted in the upper compartment. An arm with a depending projection slidable on the bottom of the upper compartment is pivoted to the winder. A spring is provided in a case with an adjusting lid. A nozzle and guard provided to the sipper can be pulled out for sipping water from the thermos bottle and retracted with the unwinding of the spring.
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