Sealing mechanism for beverage containers

Abstract

To make it easier for the user to remove the closure. [Solution] Some embodiments described herein relate to a beverage container comprising a drinking opening, a closure, and a seal. The closure is configured to selectively close the drinking opening. The seal is coupled to the closure and is configured to seal the drinking opening when the closure closes the drinking opening. The closure includes a shaft extending downward from the inside of the closure. The seal covers the shaft, and a slit extends through the portion of the seal that covers the shaft.

Claims

1. Beverage container Drinking opening and A closure configured to selectively close the drinking opening, A seal coupled to the closure and configured to seal the drinking opening when the closure closes the drinking opening, The closure comprises a shaft extending downward from the inside of the closure, The seal covers the shaft, A beverage container in which a slit extends through the portion of the seal covering the shaft.

2. The beverage container according to claim 1, wherein the slit extends circumferentially with respect to the shaft.

3. The beverage container according to claim 1, wherein the seal completely covers the shaft below the slit.

4. The beverage container according to claim 1, wherein the seal completely covers the shaft above the slit.

5. The beverage container according to claim 1, wherein the slit is the only opening that penetrates the seal.

6. The beverage container according to claim 1, wherein the shaft has higher rigidity than the portion of the seal covering the shaft.

7. The beverage container according to claim 1, wherein when the interior of the closure is opened to the atmosphere, the seal is pressed inward against the shaft.

8. The beverage container according to claim 1, wherein the closure closes the drinking opening, and when the pressure difference between the inside of the beverage container and the atmosphere outside the beverage container rises above a threshold pressure difference, air from the atmosphere enters the inside of the beverage container through the slit.

9. The beverage container according to claim 1, wherein the closure closes the drinking opening, and when the pressure difference between the inside of the beverage container and the atmosphere outside the beverage container rises above a threshold pressure difference, air from the atmosphere enters the inside of the beverage container through the slit until the pressure difference falls below the threshold pressure difference.

10. The beverage container according to claim 1, wherein when the closure closes the drinking opening, air does not pass through the slit from the inside of the beverage container to the outside of the beverage container to the atmosphere, even if the pressure difference between the inside of the beverage container and the atmosphere outside the beverage container exceeds or falls below a threshold pressure difference.

11. The beverage container according to claim 1, wherein the closure closes the drinking opening, and when the pressure difference between the inside of the beverage container and the atmosphere outside the beverage container rises above a threshold pressure difference, air from the atmosphere enters the inside of the beverage container by passing through the hollow interior of the shaft, the open end of the shaft, and the slit.

12. The beverage container according to claim 1, wherein the shaft has a frustoconical shape.

13. The beverage container according to claim 1, wherein the slit is formed by cutting.

14. The beverage container according to claim 1, wherein the slit does not form a gap.

15. The beverage container according to claim 1, wherein the portion of the seal covering the shaft has a thickness of 0.5 mm to 2 mm in the slit.

16. The beverage container according to claim 1, wherein the slit has a length of less than 4 mm.

17. A seal for beverage containers, The sticker itself, The seal body comprises a flap that is coupled to the seal body, The lower surface of the flap is configured to seal the drinking opening of the beverage container. The lower surface of the seal body and the upper surface of the flap define a gap between them. The gap is configured to allow fluid communication with the internal volume of the beverage container when the lower surface of the flap seals the drinking opening of the beverage container.

18. The seal according to claim 17, wherein the flap and the seal body are integrally formed.

19. The seal according to claim 17, wherein the flap is inclined radially inward and downward with respect to the seal body.

20. A beverage container, Drinking opening and A closure configured to selectively close the drinking opening, The seal according to claim 17, A beverage container in which the seal is configured to seal the drinking opening when the closure closes the drinking opening.

21. The beverage container according to claim 20, wherein the free end of the flap extends radially inward beyond the upper periphery of the drinking opening when the closure closes the drinking opening.

22. When the closure closes the drinking opening, The aforementioned flap bends upward, A gap is left between the lower surface of the seal body and the upper surface of the flap, as described in claim 20.

23. A beverage container, A drinking spout that defines the opening for drinking, A closure configured to selectively close the drinking opening, The seal according to claim 17, The seal is configured to seal the drinking opening when the closure closes the drinking opening. The seal comprises a flange that is coupled to the seal body, A beverage container in which, when the closure closes the drinking opening, the flange extends downward on the outside of the drinking spout.

24. Beverage container Drinking opening and A closure configured to selectively close the drinking opening, comprising a shaft extending downward from the inside of the closure, A seal coupled to the closure, The sticker itself, A portion that is coupled to the seal body and covers the shaft, A slit extending through the portion of the seal covering the shaft, A seal comprising a flap coupled to the seal body, The lower surface of the flap is configured to seal the drinking opening of the beverage container when the closure closes the drinking opening. A gap is formed between the lower surface of the seal body and the upper surface of the flap. A beverage container in which the gap is configured to communicate with the internal volume of the beverage container when the lower surface of the flap seals the drinking opening of the beverage container.

Images