Extendable Razor Blade Housing Assembly Design
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Solution Overview
Problem
Conventional razors have short blade lengths, making it time-consuming to shave large surface areas, which can be hazardous in medical procedures and aesthetically inconvenient for individuals, as it requires extensive time and effort to shave body parts.
Innovation Solution
A razor design featuring a main blade housing assembly with extendable extension blades that can be configured to increase shaving efficiency by extending beyond the main blade housing, allowing for more hair to be removed in a single pass, with a lock mechanism to maintain the blades in a stored or extended position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the razor uses a conventional short blade length, then the device structure remains simple and easy to manufacture, but the shaving time for large surface areas becomes excessively long
Solution Approach 1:
The blade assembly is segmented into a main blade and multiple extension blades that can be independently positioned. The first extension blade is mounted on a first extension blade housing assembly, and the second extension blade is mounted on a second extension blade housing assembly, allowing each segment to be controlled separately to achieve the desired long blade configuration
Solution Approach 2:
The blade housing assemblies are made dynamically adjustable between stored and extended configurations. The biasing elements enable the extension blade housing assemblies to move between retracted and extended positions, allowing the blade length to be changed based on the shaving requirements
2Loss of time
If the razor uses extendable blades to increase blade length, then the shaving efficiency on large areas improves, but the device complexity and mechanism requirements increase
Solution Approach 1:
The biasing elements automatically maintain the extension blade housing assemblies in their extended configuration once deployed, eliminating the need for continuous active control or complex locking mechanisms. The system uses the inherent mechanical properties of the biasing elements to sustain the extended blade position for the duration of the shaving process
3Productivity
If the razor uses multiple extension blade housing assemblies to achieve long continuous blade length, then the productivity for large surface area shaving increases, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The blade system is divided into modular components: a main blade housing assembly and separate extension blade housing assemblies. Each housing assembly is designed to receive and secure a blade independently, allowing for simplified manufacturing and assembly processes compared to creating a single monolithic long blade structure
Data Source
AI summary
A razor having a handle, a head and a main blade housing assembly. The main blade housing assembly defines a first end, a second end and has at least one main blade mounted thereon. At least one first extension blade is mounted on a first extension blade housing assembly. At least one second extension blade is mounted on a second extension blade housing assembly. In a stored configuration at least substantially all of the first extension blade and second extension blade are both positioned between the main blade housing assembly's first end and second end. In an extended configuration at least substantially all of the first extension blade and the second extension blade extends beyond a first end and second end of the main blade.