Oscillating Razor Elastic Support Structure
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Solution Overview
Problem
The existing safety razor designs require complex pivotal support structures for the razor head, complicating the mechanism and necessitating separate support systems for different pivoting directions.
Innovation Solution
A pivotal neck type razor with a simplified support structure featuring an elastic support body and flexible portions that allow the razor head to move relative to the holder from a neutral position against an elastic force, stabilizing the blade assembly and improving skin contact during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate pivotal support structures are used for different pivoting directions, then the razor head can be supported in multiple directions, but the structure becomes complicated
Solution Approach 1:
The patent combines multiple pivotal support functions into a single integrated elastic support body. The elastic support body simultaneously provides support in multiple directions and enables pivoting motion without requiring separate support structures for each pivoting direction, thus reducing overall structural complexity while maintaining adaptability
Solution Approach 2:
The patent utilizes the elastic properties of the support body to enable dynamic adaptation to different pivoting directions. By changing the physical state from rigid to elastic, the support structure can accommodate multiple pivoting directions without requiring complex mechanical joints or separate support mechanisms
2Ease of operation
If the flexible portion is positioned close to the blade body, then the blade assembly moves smoothly on the skin surface, but the support structure becomes more constrained
Solution Approach 1:
The patent applies different structural properties to different parts of the support body. The flexible portion is specifically positioned and configured to provide localized flexibility near the blade body for smooth skin contact, while other portions maintain structural support, creating a differentiated structure that optimizes both smoothness and support without overall complexity
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 simplifies the support structure, enhances the feel on the skin surface by allowing smooth movement of the blade assembly, and reduces contact resistance, thereby improving shaving performance.
Implementation Method 1
The blade assembly is urged by the flexible portion of the elastic support body to be stationary at a neutral position
Implementation Method 2
The blade assembly is movable to at least one movement position from the neutral position against an urging force of the flexible portion
Data Source
Figure 1A~1C
Figure 2A~2C
Figure 3A~3C
AI summary
A pivotal neck type razor includes a holder (1) having a top end (24), and a razor head (2) attached to the holder (1). The razor head (2) includes a blade assembly (4), an elastic support body (5), and a connection unit (6) that is continuous with the top end (24) of the holder (1). The elastic support body (5) includes a support portion (7) that supports the blade assembly (4) and a flexible portion (8) located between the support portion (7) and the connection unit (6). The blade assembly (4) is urged by the flexible portion (8) of the elastic support body (5) to be stationary at a neutral position (P). The blade assembly (4) is movable to at least one movement position (Q) from the neutral position (P) against an urging force of the flexible portion (8).