Patent · US Active

Vibration structure of electrical toothbrush

US11730579B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

JISHAN D-MAX ELECTRONICS CO., LTD. · CN

Inventors

Wei-Chuan Wang · Hamburg, DE
Qiang Wei · Guiyang, CN

Key dates

Filing date	Mar 20, 2020
Grant date	Aug 22, 2023
Priority date	—
Expiry date	Feb 12, 2041

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61C17/16
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A vibration structure of electrical toothbrush includes a shaft rod, a rocking rod, a fixing member and a vibration stem. The shaft rod has a first end and a second end. A driving power is applied to the first end to drive and vibrate the shaft rod. One end of the rocking rod is correspondingly inserted in the second end of the shaft rod. A weight block is disposed at the other end of the rocking rod. The weight block is eccentrically arranged to cause unbalance of the rocking rod to deflect from a central axis of the shaft rod. The fixing member is fitted on the rocking rod between the shaft rod and the weight block. The vibration stem is formed with an internal first space. The shaft rod is correspondingly disposed in the first space with the fixing member in contact with inner side of the vibration stem.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.