Shaving Head Cutter Member Removal Mechanism
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Solution Overview
Problem
The existing shaving head units have inadequate cutter member cleaning and replacement mechanisms, leading to reduced shaving performance and the need for replacing the entire unit when the cutter member is damaged.
Innovation Solution
A shaving head unit with a movable support device attached to each cap, allowing the cutter member to be easily removed, cleaned, and replaced, featuring an aligning device for correct reassembly and a locking mechanism to prevent accidental release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cutter member is fixed in the cap to prevent accidental dropping, then the cutter member stability is improved, but the ease of cleaning and replacement deteriorates
Solution Approach 1:
The support device is designed to be movable between a retaining position (where it holds the cutter member securely) and a release position (where it allows easy removal). This dynamic positioning resolves the contradiction by allowing the system to switch between stability and ease of operation based on the operational phase.
Solution Approach 2:
The support device is separated from the cap as an independent movable component. This segmentation allows the support device to perform its dual function of securing the cutter member during operation and facilitating its removal during maintenance, without compromising either the cap's structure or the cutter member's stability.
2Reliability
If the whole shaving head unit is replaced when the cutter member is damaged, then the reliability of the shaving system is maintained, but the loss of time and resources increases
Solution Approach 1:
The cutter member is segmented as a separate replaceable component from the rest of the shaving head unit. This allows only the damaged cutter member to be replaced rather than the entire unit, reducing time loss and resource waste while maintaining the reliability of the overall system.
Solution Approach 2:
The damaged cutter member is discarded and replaced with a new one, while the rest of the shaving head unit (cap, support device, base portion) is recovered and reused. This principle minimizes resource loss and replacement time while ensuring the shaving system maintains its reliability.
3Ease of operation
If the cap is opened to remove cut-off hairs, then the cleaning access is improved, but the risk of cutter member damage or loss increases
Solution Approach 1:
The support device dynamically changes its function based on the cap position: when the cap is closed, it secures the cutter member; when the cap is opened, it can be moved to a release position to facilitate safe removal and cleaning of the cutter member, thus providing both cleaning access and security.
Solution Approach 2:
The support device acts as an intermediary between the cutter member and the cap. It provides a controlled interface that allows the cutter member to be securely held during normal operation while enabling safe and controlled removal when cleaning is needed, thus mediating between security and accessibility requirements.
Data Source
AI summary
A shaving head has a plurality of shaving elements, each including a base portion having a separate space for receiving cut-off hairs, a cutter member for cutting hair, a drive shaft, a pivot pin connected to the cutter member and detachably coupled to the drive shaft, and a cap with a plurality of openings for letting through hairs to be cut off by the cutter member. The cap is movable with respect to the base portion between a closed position in which the space is closed off and an open position in which cut off hairs can be removed from the space. A support member disposed between the cap and the base is movable between a retaining position in which the cutter member is retained in the cap and a release position in which the cutter member can be removed from the cap.