Toothbrush

The toothbrush design addresses the challenge of maintaining the thinness of the head part while preventing the brush part from detaching during brushing by using engaging pieces at both ends of the brush part, ensuring secure attachment and enhanced usability.

JP2025080825AActive Publication Date: 2025-05-27武田 浩 +1
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Patent Information

Application Number
JP2023194124
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-15
Publication Date
2025-05-27
Estimated Expiration
2043-11-15

AI Technical Summary

Technical Problem

Existing toothbrush designs with replaceable brush parts face challenges in maintaining the thinness of the head part while ensuring the brush part does not overturn and come off during brushing.

Method used

A toothbrush design featuring a brush part with engaging pieces at both ends, which attach to corresponding engaging recesses on the toothbrush body, maintaining the thinness of the head while enhancing the attachment strength.

Benefits of technology

The design effectively prevents the brush part from detaching during brushing while maintaining the thinness of the toothbrush head, thus enhancing usability and functionality.

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Abstract

To provide a toothbrush in which a replaceable brush part hardly comes off in brushing while maintaining the thinness of a head part of the toothbrush.SOLUTION: A brush part 4 includes a base plate 5, a bristle part 6 provided on the surface of the base plate 5, and engaging parts 7 formed on the base plate 5. The engaging parts 7 are formed in both end parts of the base plate 5 in the width direction of the toothbrush. A head part 1 of a toothbrush body 3 is provided with engaged parts 8 that are engaged with the engaging parts 7 formed in the brush part 4 at positions corresponding to the engaging parts 7 respectively. The brush part 4 can be attached to the toothbrush body 3 when the engaging parts 7 are engaged with the engaged parts 8.SELECTED DRAWING: Figure 1
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