Single-Point Support for Shaver Vibration Plates
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Solution Overview
Problem
Conventional reciprocating electric shavers have limited vibration freedom of vibration plates due to double-point support, restricting the generation of a comfortable shaving sound and leading to beard waste accumulation.
Innovation Solution
A single-point support structure for vibration plates at the inner edge joint, allowing increased vibration freedom and sound quality while minimizing beard waste accumulation through a center or one-sided single-point support configuration and forming spaces below the support portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If double-point support structure is used for vibration plates, then support stability is improved, but vibration freedom is restricted
Solution Approach 1:
The support structure is segmented from the traditional double-point support to a single-point support configuration. The support portion is divided into multiple independent support points, each supporting individual vibration plates, allowing each plate to vibrate independently with greater freedom while maintaining overall structural stability through the distributed support arrangement.
Solution Approach 2:
The support structure transitions from a rigid double-point constraint to a more dynamic single-point support system. This allows the vibration plates to have dynamic movement capabilities with enhanced vibration amplitude and freedom, while the support portion maintains stability through its structural design and positioning.
2Area of stationary object
If double-point support structure is used for vibration plates, then support coverage is improved, but vibration amplitude is limited
Solution Approach 1:
The support coverage is maintained through multiple distributed support points across the inner edge joint structure, while each individual vibration plate is supported at a single point. This segmentation allows each plate to achieve larger vibration amplitudes without compromising overall support coverage, as the support function is distributed across multiple locations.
Solution Approach 2:
The support system transitions from constraining vibration in limited dimensions (double-point restriction) to enabling vibration with greater amplitude in the vertical dimension. The single-point support allows vibration plates to move more freely in the vibration direction, increasing vibration amplitude while the horizontal support coverage is maintained through the arrangement of multiple support portions.
3Strength
If support portion is made thick to improve stability, then support strength is improved, but beard waste accumulation increases
Solution Approach 1:
The support portion is segmented into a thin structure with multiple support points rather than a single thick support. This segmentation maintains overall support strength through the distributed support system while reducing beard waste accumulation, as the thin structure with gaps allows waste to fall through rather than accumulating on a large flat surface.
Solution Approach 2:
The support portion is designed with a porous or gap-containing structure that allows beard waste to pass through. The thin support portion with openings functions similarly to porous material, enabling waste removal while maintaining structural strength through the distributed support point configuration and material properties.
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
Enhances vibration freedom and sound quality, reducing beard waste accumulation by stabilizing support and allowing larger vibrations, and preventing waste from accumulating under the vibration plates.
Implementation Method 1
the vibration plates 40 vibrate at the time of shaving, whereby a comfortable vibration sound (shaving sound) is adapted to be generated
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
An inner edge of a reciprocating electric shaver includes an inner edge body (3), and an inner edge joint (4) that supports the inner edge body (3), the inner edge body (3) having a plurality of edge pieces (30) which have an inverse U shape, slide along an inner surface of an outer edge (1), and cut beard. Then, in the inner edge joint (4), there are provided: a plurality of vibration plates (40) which is connected to any of the plurality of edge pieces (3), and generates a shaving sound at a time of cutting the beard; and a support portion (41) that supports the respective vibration plates (40), and the support portion (41) is adapted to support a single point of each of the vibration plates (41).