Electric Toothbrush Cap with Cantilevered Switch Guard
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Solution Overview
Problem
Existing electric toothbrushes lack effective protection for the bristles of refill heads and power switches, leading to potential damage and accidental activation, with current solutions being bulky and increasing manufacturing costs.
Innovation Solution
An electric toothbrush apparatus featuring a cap with a protective member that cantileveredly extends to overlie the power switch, providing protection while allowing the toothbrush head to be detachably coupled and vented, thus preventing accidental actuation and enhancing user safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protection devices are added to protect the bristles and power switch, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple protection functions into a single cap structure. The cap simultaneously protects the bristles from damage and the power switch from accidental activation, eliminating the need for separate protection devices for each component. This merging approach maintains reliability while reducing overall device complexity.
Solution Approach 2:
The cap serves multiple functions: it protects the bristles, protects the power switch, and provides a housing for the toothbrush head. By making the protection device multi-functional, the patent avoids adding unnecessary complexity while achieving comprehensive protection for all vulnerable components.
2Reliability
If protection devices are added to protect the power switch, then the reliability is improved, but the manufacturing cost increases
Solution Approach 1:
The power switch protection is integrated into the cap structure rather than being a separate component. This merging reduces the total number of parts that need to be manufactured and assembled, thereby lowering manufacturing costs while still providing reliable protection for the power switch.
Solution Approach 2:
The cap is designed to perform multiple functions including power switch protection, bristle protection, and toothbrush head housing. By consolidating these functions into a single component, the patent reduces manufacturing complexity and cost compared to producing separate protection devices for each function.
3Reliability
If a cap structure is added to protect the bristles, then the reliability is improved, but the volume of the toothbrush increases
Solution Approach 1:
The cap is designed to fit over the toothbrush head in a nested configuration, where the cap cavity accommodates the toothbrush head components. This nesting approach provides comprehensive bristle protection while minimizing the overall volume increase, as the protection structure closely follows the contours of the components it protects.
Data Source
AI summary
An electric toothbrush apparatus including an electric toothbrush handle and a cap coupled thereto for protecting tooth cleaning elements and a user actuatable switch. The electric toothbrush apparatus includes an electric toothbrush handle extending along a handle axis. The electric toothbrush handle comprises a handle portion comprising user actuatable input means, a power source, and a motion inducing assembly. A cap is detachably coupled to the electric toothbrush handle. The cap comprises a tubular sidewall forming a cavity about a cap axis and a protective member axially extending from a bottom edge of the tubular sidewall in a cantilevered manner so as to overly the user actuatable input means to prevent accidental actuation thereof.