Electric Razor Support Frame Removal Mechanism
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Solution Overview
Problem
Conventional electric razors face difficulties in smoothly removing a support frame that supports both an outer and inner blade block due to the lack of urging force when the frame is detached from the head.
Innovation Solution
The electric razor design incorporates a support frame that can float and sink, a case covering the frame, a hook to lock the frame to the base, and at least one push-up member to urge the support frame away from the base, allowing for smooth removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the support frame supports both outer blade and inner blade as a block, then the blade assembly is compact and stable, but the support frame becomes difficult to remove smoothly
Solution Approach 1:
The patent introduces a push-up member as an intermediary component between the support frame and the main body. This push-up member applies an urging force to the support frame in the removal direction, acting as a mediator that facilitates the separation of the support frame from the main body without directly involving the user's removal action. This resolves the contradiction by providing mechanical assistance that overcomes the friction and interference forces preventing smooth removal.
2Reliability
If the inner blade is urged against the outer blade within the block, then the blades maintain proper contact for shaving, but the urging force cannot be applied to the support frame when removed
Solution Approach 1:
The patent segments the urging function into two distinct components: the elastic body that maintains blade contact, and the push-up member that facilitates support frame removal. The elastic body is positioned between the inner and outer blades to provide continuous urging force for reliable shaving. The push-up member is positioned between the support frame and the main body to provide urging force during detachment. This segmentation allows each component to perform its specific function without interference, resolving the contradiction between maintaining blade contact and enabling frame removal.
3Strength
If the support frame is locked to the base with a hook, then the blade assembly is securely attached, but the frame requires excessive force to remove
Solution Approach 1:
The patent applies preliminary anti-action by positioning the push-up member to exert an urging force on the support frame in the removal direction even while the frame is attached to the main body. This pre-applied force counteracts the locking force of the hook mechanism, creating a balanced state where the attachment remains secure during operation but requires less additional force for removal. The push-up member's urging force prepares the system for easy detachment by continuously opposing the locking force.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enables the support frame to be easily detached from the base, ensuring the blade block can be efficiently removed while maintaining proper attachment, thus overcoming the removal challenges faced in existing designs.
Implementation Method 1
at least one push-up member that urges the support frame in a direction away from the base
Data Source
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AI summary
The present disclosure provides an electric razor in which a support frame that supports an outer blade and an inner blade, which constitute a block, can be smoothly removed. An electric razor 100 according to the present disclosure includes a main body 10 gripped by a user and a head 20 having a blade block 30 including an outer blade (that is, a slit blade, a mesh blade) and an inner blade disposed inside the outer blade and sliding with respect to the outer blade. The head includes a base 27, a support frame 25 that supports the blade block so as to be able to float and sink, a case 21 held by the support frame, a hook 26 that locks the support frame or the case to the base, and at least one push-up member 28 that urges the support frame in a direction away from the base.