Patent ID: 11871874
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC A  B | IPC A  B

Claim 20:
21. The tumbler of claim 15, wherein the shielding support includes:
a rotation shaft part coupled to the rotation shaft to ascend or descend along the rotation shaft;
a support body allowing the rotation shaft part to be rotatably inserted thereinto and having an upper end supported by the rotation shaft part to descend in interlocking with the rotation shaft part;
an elastic member having an upper end supported by a lower portion of the support body and a lower end supported by a lower end of the rotation shaft part to add an elastic supporting force to the support body upwards; and
a shielding part having a first end coupled to an outer surface of the support body and a second end extending from the first end to open or close the mouthpiece.