Electric Shaver Head Portion Edge Trimmer Integration
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Solution Overview
Problem
Conventional electric shavers with edge-trimmer-blade units positioned on the back-side surface of the gripper portion make it difficult for users to accurately place the edge-trimmer-blade unit on the shaving area due to its blade edge being away from the shaving-blade unit.
Innovation Solution
The electric shaver design integrates the edge-trimmer-blade unit into the head portion, which is swingable in predetermined directions, allowing it to be easily switched between a ready-for-use and stored state using a single operation element, ensuring the edge-trimmer-blade unit is closer to the shaving-blade unit for improved accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the edge-trimmer-blade unit is provided in the upper-side portion on the back-side surface of the gripper portion, then the structure is simplified and manufacturing is easier, but the blade edge is away from the shaving-blade unit making it difficult for users to place it on the exact point to be shaved
Solution Approach 1:
The edge-trimmer-blade unit is merged with the head portion, integrating two previously separate components (edge-trimmer-blade unit and head portion) into a single assembly. This allows the edge-trimmer-blade to be positioned closer to the shaving-blade unit while maintaining structural simplicity, resolving the contradiction between ease of manufacture and ease of operation.
2Ease of operation
If the edge-trimmer-blade unit is integrated into the head portion, then the blade edge is closer to the shaving-blade unit improving accessibility, but the head portion size increases
Solution Approach 1:
The edge-trimmer-blade unit is nested within the head portion structure, with the edge-trimmer-blade housed in a dedicated space within the head portion. This nesting approach allows integration of multiple functions in a compact arrangement, improving accessibility while minimizing the increase in head portion size.
3Ease of operation
If the edge-trimmer-blade unit is positioned closer to the shaving-blade unit, then user convenience is improved, but the head portion structure becomes more complex
Solution Approach 1:
The edge-trimmer-blade unit and shaving-blade unit are merged into a single head portion assembly with a unified support structure. This merging approach positions the edge-trimmer-blade closer to the shaving-blade unit for improved user convenience while avoiding the need for separate mounting mechanisms, thus limiting the increase in structural complexity.
Data Source
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AI summary
An electric shaver (1) including: a gripper portion (2) to be held by the user's hand; and a head portion (6) configured to hold a shaving-blade unit (10) and supported to be swingable in predetermined directions with respect to the gripper portion, wherein the head portion is provided with an edge-trimmer-blade unit (20).