Reciprocating Linear Razor with Eccentric Cam and Vacuum Guard
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Solution Overview
Problem
Existing razors, particularly dry type electric razors, lack sufficient cutting force and convenience, with wet type razors being time-consuming and uneconomical, and dry type razors leaving behind cut hair.
Innovation Solution
A reciprocating linear razor with a bi-directional razor blade cartridge, vacuum guards, and an eccentric cam module that generates vibration force for improved cutting efficiency, along with a rotating head unit for adjustable cutting direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a wet type razor is used to improve cutting performance, then cutting force is improved, but time consumption increases and economy deteriorates
Solution Approach 1:
The razor blade cartridge performs self-cutting through reciprocating linear motion generated by the eccentric cam mechanism, eliminating the need for manual rubbing or wet shaving preparations. The vibration force automatically enhances cutting performance without requiring external assistance from creams or soaps.
Solution Approach 2:
The eccentric cam mechanism generates reciprocating linear motion with vibration force that enhances the cutting blade's effectiveness. This mechanical vibration allows the blade to cut more efficiently without requiring wet shaving conditions, thus improving cutting force while maintaining economy and convenience.
2Ease of operation
If a dry type razor is used for convenience and economy, then ease of operation and economy are improved, but cutting force deteriorates and cut hair remains
Solution Approach 1:
The eccentric cam mechanism generates reciprocating linear motion with vibration force that enhances the cutting blade's effectiveness. This mechanical vibration allows the blade to cut more efficiently without requiring wet shaving conditions, thus improving cutting force while maintaining economy and convenience.
Solution Approach 2:
The razor blade cartridge is designed to perform dynamic reciprocating linear motion rather than remaining static. This dynamic movement with vibration force enhances the cutting capability, allowing the dry type razor to achieve cutting performance comparable to wet type razors while maintaining ease of operation and economy.
3Force
If a rotary razor head unit is used to tightly contact skin, then cutting performance is improved, but device complexity increases
Solution Approach 1:
The razor is divided into distinct functional modules: the housing, the head unit with razor blade cartridge, and the eccentric cam mechanism. This segmentation allows each component to perform its specific function efficiently - the head unit contacts the skin while the eccentric cam generates the reciprocating motion, simplifying the overall structure compared to integrated rotary designs.
Solution Approach 2:
The patent replaces the complex rotary mechanical system with a simpler eccentric cam mechanism that generates reciprocating linear motion. This substitution maintains the cutting performance benefit of tight skin contact while using a less complex mechanical system, achieving the desired cutting force without excessive structural 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
The razor provides enhanced cutting force through reciprocating motion and suction effect, improving shaving performance, convenience, and economy by allowing easy attachment and detachment of components and adjustable cutting directions.
Implementation Method 1
an eccentric cam module making the razor blade cartridge perform a reciprocating motion in a cutting direction
Implementation Method 2
generates a vibration in a surface of a razor cartridge to often provide skin, beard, or beard with a calming effect
Implementation Method 3
a vacuum guard formed of an elastic material, performs a vacuum pump function, and thus, improves cutting force
Implementation Method 4
a vacuum guard formed of an elastic material
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present invention pertains to a razor, which includes: a gripping section combined with a housing; a head section coupled at one side of the housing; a razor blade cartridge mounted at a front surface of an upper end of the head section; and an eccentric cam module, which moves the razor blade cartridge to reciprocate in a cutting direction.