TELESCOPIC DRINKING STRAW

摘要

Telescopic drinking straw consisting of an inner straw (1) having its base end formed as a diameter enlarged portion (2) and an outer straw (3) having its front end formed as a diameter reduced portion (4) so as to assure engagement of the base end of the inner straw with the front end of the outer straw when these inner and outer straws have been fully extended in a telescopic manner. Further the outer straw (3) is provided adjacent the front end thereof with an inwardly directed stopper (7) to prevent the inner straw (1) from retracting into the outer straw and the outer straw is still further provided at the base end with a diameter reduced portion (8) to prevent the inner straw from slipping out of the outer straw. Said inwardly directed stopper (7) provided by the outer straw includes a gentle slope (9) facing the base end and a steep slope (10) facing the front end of said outer straw.