Structure for coupling toothbrush head to electric toothbrush handle
This document also discloses a member for mounting a toothbrush head to an electric toothbrush. The member includes a base having an opening for receiving a drive shaft of an electric toothbrush. The member also includes a coupling section that includes a cylindrical sidewall that surrounds a cavity for receiving the drive shaft. The member includes a spring in the coupling section. The spring is positioned to transfer vibration from the drive shaft to the toothbrush head when operated.
1. A toothbrush head for an electric toothbrush, the toothbrush head comprising:
a brush that comprises a plurality of bristles;
a base having an opening for receiving a drive shaft of an electric toothbrush, and
a coupling section that extends from the base, wherein the coupling section comprises:
a cylindrical sidewall that surrounds a cavity for receiving the drive shaft; and
a spring comprising a flat or curved base from which two sides extend, the spring being positioned to, when in operation, transfer vibration from the drive shaft to the toothbrush head;
wherein the two sides of the spring contact the sidewall.
2. The toothbrush head of claim 1 , wherein the spring is made of metal.
3. The toothbrush head of claim 1 , wherein the two sides of the spring are flush with an aperture into which the spring is inserted.
4. The toothbrush head of claim 1 , wherein the cylindrical sidewall further comprises an aperture.
5. The toothbrush head of claim 4 , wherein the spring is positioned within the aperture.
6. The toothbrush head of claim 5 , wherein the spring is held in place by a friction fit in the aperture.
7. The toothbrush head of claim 4 , wherein the flat or curved base of the spring extends into the aperture.
8. The toothbrush head of claim 4 , wherein a maximum distance between the two sides is larger than a corresponding size of the aperture when the spring is in a relaxed position.
9. The toothbrush head of claim 1 , wherein the spring is further positioned, when in operation, to contact the drive shaft.
10. A member for mounting a toothbrush head to an electric toothbrush, the member comprising:
a base having an opening for receiving a drive shaft of an electric toothbrush; and
a coupling section, wherein the coupling section comprises:
a cylindrical sidewall that surrounds a cavity for receiving the drive shaft, and
a spring comprising a flat or curved base from which two sides extend, the spring being positioned to, when in operation, transfer vibration from the drive shaft to the toothbrush head;
wherein the two sides of the spring contact the sidewall.
11. The member of claim 10 , wherein the spring is made of metal.
12. The member of claim 10 , wherein the two sides of the spring are flush with an aperture into which the spring is inserted.
13. The member of claim 10 , wherein the cylindrical sidewall further comprises an aperture.
14. The member of claim 13 , wherein the spring is positioned within the aperture.
15. The member of claim 14 , wherein the spring is held in place by a friction fit in the aperture.
16. The member of claim 13 , wherein the flat or curved base of the spring extends into the aperture.
17. The member of claim 13 , wherein a maximum distance between the two sides is larger than a corresponding size of the aperture when the spring is in a relaxed position.
18. The member of claim 10 , wherein the spring is further positioned, when in operation, to contact the drive shaft.