Razor Handle Plunger Support for Stable Cartridge Pivoting
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Solution Overview
Problem
Existing razor handles and cartridges often suffer from misalignment and instability during use, leading to inefficient hair cutting and potential user injury due to unstable pivoting of the cartridge.
Innovation Solution
A razor handle design with a plunger that provides a restoring force to elastically support the razor cartridge, featuring an indicator on its outer surface to indicate the mounting and pivoting state, ensuring proper alignment and coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a razor cartridge is coupled to a razor handle without an indicator system, then the device complexity is reduced, but the ease of operation deteriorates because users cannot easily recognize the coupling state and alignment
Solution Approach 1:
The patent applies color changes by providing indicators with different colors (e.g., first indicator and second indicator with distinct colors) that become visible or change appearance based on the coupling state. When the razor cartridge is properly coupled to the handle, the indicators display specific colors or patterns that clearly indicate correct alignment and coupling to the user, making it easy to recognize the state without adding complex mechanical feedback mechanisms.
2Ease of operation
If an indicator system is added to show coupling state, then the ease of operation improves, but the device complexity increases due to additional components
Solution Approach 1:
The patent uses color-coded indicators (first indicator and second indicator with different colors) that provide visual feedback about the mounting state. The indicators are designed to be visible when the cartridge is properly mounted, allowing users to easily recognize correct installation without requiring complex mechanical or electronic sensing systems.
Solution Approach 2:
The patent introduces indicators as intermediary visual elements that mediate between the mechanical coupling state and user perception. These indicators serve as a simple communication interface, translating the physical coupling state into visible signals without requiring complex sensing or processing mechanisms.
3Adaptability or versatility
If the razor cartridge is allowed to pivot freely without elastic support, then the adaptability improves for contour following, but the stability deteriorates leading to misalignment and potential injury
Solution Approach 1:
The patent applies beforehand cushioning by providing elastic support members that are pre-configured to support the razor cartridge during pivoting motion. These elastic members are installed in advance to prevent excessive or uncontrolled pivoting, cushioning the cartridge against instability while still allowing controlled movement for contour following, thereby preventing misalignment and potential injury before they occur.
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
Facilitates easy recognition of correct alignment and coupling, preventing misalignment issues and ensuring stable pivoting for efficient hair cutting and user safety.
Implementation Method 1
a plunger that provides a restoring force to elastically support the razor cartridge and restore the razor cartridge to a neutral position
Data Source
AI summary
A razor handle coupling with a razor cartridge may include a head portion coupled to the razor cartridge. The razor handle may also include a grip portion extending from the head portion. The head portion may include a plunger that provides a restoring force to elastically support the razor cartridge and restore the razor cartridge to a neutral position. An indicator may be provided on an outer surface of the plunger to indicate at least one of a mounting state and a pivoting state of the razor cartridge.