Shaver Blade Floating Structure for Facial Contour Adaptation
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Solution Overview
Problem
The existing shaver designs have a rotating structure that is complicated, lacks flexibility, and results in a poor user experience due to blunt resistance between the shaving unit and the skin, leading to soreness and discomfort during shaving.
Innovation Solution
A blade head floating structure is introduced, featuring a supporting member, a shaving unit with a first hinge and a second hinge, and an elastic member that allows the shaving unit to rotate 360° smoothly by compressing and extending, adapting to the facial curve and preventing hard contact with the skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed connection structure is used between the shaving unit and supporting structure, then the structure is simple and stable, but the shaving unit cannot adapt to skin contours resulting in blunt resistance and poor user experience
Solution Approach 1:
The patent transforms the fixed connection into a dynamic floating connection where the shaving unit can move relative to the supporting structure through a matching groove and matching portion mechanism, enabling adaptation to skin contours while maintaining structural simplicity
Solution Approach 2:
The patent employs a flexible membrane connecting the shaving unit to the supporting structure, allowing the shaving unit to float and adapt to facial curves while maintaining a simple overall structure
2Adaptability or versatility
If cross-type universal joints are used to enable rotation, then the shaving unit can rotate relative to the supporting structure, but the assembly becomes cumbersome and the defect rate increases
Solution Approach 1:
The patent replaces complex universal joints with a dynamic floating structure using matching grooves and portions that enable rotation through elastic deformation, simplifying the assembly while maintaining rotating flexibility
Solution Approach 2:
The patent changes the structural parameters by using a flexible membrane with matching grooves that can elastically deform, allowing rotation without complex mechanical joints and reducing assembly complexity
3Ease of operation
If the shaving unit is fixedly connected, then the structure is stable, but the hands must remain tense during shaving causing soreness
Solution Approach 1:
The patent introduces a dynamic floating connection that allows the shaving unit to move with skin contours, reducing the need for hand tension while maintaining sufficient structural stability through the matching groove mechanism
Solution Approach 2:
The elastic membrane structure provides beforehand cushioning by absorbing movement variations, allowing relaxed hand operation while maintaining stable shaving contact
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
The solution provides a more comfortable shaving experience by allowing the shaving unit to float and adjust to different facial curves, reducing soreness and improving user experience through flexible rotation and adaptation to varying skin forces.
Implementation Method 1
an elastic member passing through the first matching groove and the first central hole of the second hinge, wherein the top end of the elastic member abuts against the shaving unit, and wherein the bottom end of the elastic member abuts against the supporting member
Data Source
Figure 1
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AI summary
A floating rotating structure and personal care device, massager, the floating rotating structure comprises a first hinge, the first hinge (500) has a penetrating first matching groove(510); a second hinge (600), the top of the second hinge has a matching portion(610), and a limiting structure (220) provided between the first matching groove (510) and the matching portion (610) for preventing relative rotation is separable along the central axis of the first matching groove (510), the matching portion (610) is provided with a first central hole that penetrates to the bottom of the second hinge; an elastic member (800), the elastic member penetrates the first matching groove (510) and the first central hole of the second hinge (600), and the two ends of the elastic member (800) can be respectively pressed against the two external components connected to the first hinge (500) and the second hinge (600) respectively. In the above structure, when the external force is applied, the limiting structure separates, and the elastic member is compressed so that the first hinge (500) drives the external components to rotate by 360°. When the external force is reduced, the elastic member elastically returns to move upwards, thereby achieving up and down floating.