Electric Toothbrushes and Personal Care Kits
The electric toothbrush design addresses vibration transmission to the hand by using a power transmission mechanism that attaches directly to the motor shaft, enhancing user comfort and reliability.
JP7821962B2Active Publication Date: 2026-03-02PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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Patent Information
- Application Number
- JP2022128082
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-08-10
- Publication Date
- 2026-03-02
- Estimated Expiration
- 2041-04-08
AI Technical Summary
Technical Problem
Existing electric toothbrushes transmit vibrations generated during use to the hand, which can be uncomfortable and undesirable.
Method used
The electric toothbrush design includes a body with a drive shaft connected to a rotary motor, a detachable head with a power transmission mechanism, and a brush handle, where the power transmission unit is attached to the drive shaft to suppress free rotation, and the head is equipped with a power transmission unit that directly attaches to the motor shaft, reducing vibration transmission.
Benefits of technology
This design effectively suppresses vibration transmission to the hand during use, providing a more comfortable and reliable brushing experience.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide an electric toothbrush and a personal care kit capable of more reliably suppressing transmission of vibrations generated during use to the hand. [Solution] The electric toothbrush 1 includes a body 10 having a drive shaft 16 driven by a rotary motor 15. The electric toothbrush 1 also includes a head 20 that is detachably attached to the body 10 and has a power transmission mechanism 24 capable of transmitting power from the rotary motor 15 and an operating unit 25 that operates by power transmitted from the power transmission mechanism 24. The electric toothbrush 1 also includes a brush handle 30 that has bristles 3131 and is detachably attached to the head 20. The power transmission mechanism 24 has a power transmission unit 241 that can be attached to the drive shaft 16 in a state where free rotation is suppressed, and the drive shaft 16 is directly attached to a motor shaft 152 of the rotary motor 15.
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