Interdental Brush Handle Locking Mechanism for Easy Brush Changes
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Solution Overview
Problem
Existing interdental brush devices are difficult for users with impaired vision, hand-eye coordination, or hand stiffness to easily insert or remove twisted wire brushes due to inadequate user-friendly design.
Innovation Solution
An interdental brush receiver handle with a locking receiver head, ergonomic handle design, and secure channel system for twisted wire brushes, enhancing ease of brush installation and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional interdental brush receiver handle is used, then the device structure is simple, but users with impaired vision, hand-eye coordination, or hand stiffness cannot easily insert or remove the twisted wire brush
Solution Approach 1:
The handle incorporates a resilient member that can be compressed to release the locking engagement, allowing the brush to be easily removed. This dynamic mechanism enables users with limited hand strength to operate the device by simply squeezing the handle, transforming a static locking system into an actively controllable one.
Solution Approach 2:
A cam member acts as an intermediary between the user's gripping action and the locking mechanism. When the user squeezes the handle, the cam member rotates and engages or disengages the locking portions, providing mechanical advantage and amplifying the user's input force to control the brush retention.
2Reliability
If a secure locking mechanism is implemented, then the brush retention is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is segmented into distinct functional components: locking portions on the brush, corresponding receptacles in the handle, a cam member for engagement control, and a resilient member for actuation. This segmentation allows each component to perform its specific function efficiently while maintaining overall simplicity.
Solution Approach 2:
The resilient member automatically returns the cam member to its engaged position after compression, maintaining secure locking without requiring additional user action. The mechanism serves itself by using the user's release action to automatically re-engage the locking portions, ensuring reliable retention after brush insertion.
3Ease of operation
If the handle is designed for easy manipulation, then users with dexterity issues can operate it, but the structural integrity may be compromised
Solution Approach 1:
The handle incorporates a resilient member that can be compressed to release the locking engagement, allowing the brush to be easily removed. This dynamic mechanism enables users with limited hand strength to operate the device by simply squeezing the handle, transforming a static locking system into an actively controllable one.
Solution Approach 2:
A cam member acts as an intermediary between the user's gripping action and the locking mechanism. When the user squeezes the handle, the cam member rotates and engages or disengages the locking portions, providing mechanical advantage and amplifying the user's input force to control the brush retention.
Data Source
AI summary
A brush receiver handle and brush for cleaning interproximal spaces, for example, between teeth. In one embodiment, a removable interdental brush comprises at least one bend for helping to secure the interdental brush in an interdental brush receiver handle.