Integrated Shaving and Trimming Handle with Reciprocating Blade

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Solution Overview

Problem

Conventional wet shaving systems are inadequate for grooming or trimming hair of longer lengths, requiring separate tools for shaving and trimming, which is inconvenient and increases the risk of forgetting or losing items during travel.

Innovation Solution

An integrated wet shaving and precision trimming implement with a reciprocating blade and comb, allowing for precise edging and trimming of longer hair lengths, integrated with a handle that houses both shaving and trimming functions, enabling a single solution for personal grooming.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a separate trimming apparatus is used in addition to a shaving device, then trimming capability for longer hair is improved, but device complexity and inconvenience increase

Engineering Contradiction:
Improvetrimming capabilityVSAvoidnumber of devices
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines a shaving cartridge with trimming capabilities into a single integrated handle. The handle contains both a shaving mechanism (with razor blades) and a trimming mechanism (with reciprocating blades and combs), allowing users to perform both shaving and trimming operations with one device rather than requiring separate apparatuses.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The handle is designed as a multi-functional platform that can accommodate different cartridges and attachments. It can hold shaving cartridges for removing short hair and trimming cartridges with reciprocating blades for longer hair, making a single device capable of performing multiple grooming functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple shaving and trimming implements are carried, then grooming completeness is improved, but risk of forgetting or losing items increases

Engineering Contradiction:
Improvegrooming completenessVSAvoiditem retention
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

By merging shaving and trimming functions into one integrated handle, the invention eliminates the need to carry multiple separate implements. Users only need to bring one device that contains all necessary grooming capabilities, thereby reducing the risk of forgetting or losing items during travel.

Inventive Principle:
Principle #5Merging (Combining)

3Area of stationary object

If a razor cartridge size increases to cover more area, then shaving coverage is improved, but difficulty in trimming edges and contours increases

Engineering Contradiction:
Improveshaving coverage areaVSAvoidedge trimming difficulty
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The invention segments the grooming function into two distinct mechanisms within the same handle: a shaving mechanism for broad area coverage and a trimming mechanism with reciprocating blades and combs for precise edge work. This segmentation allows each mechanism to be optimized for its specific function without compromising the other.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The trimming mechanism incorporates reciprocating blades that move dynamically to cut hair along contours and edges. The combs can be positioned to space the blade from the skin, allowing dynamic adjustment for different hair lengths and trimming requirements, making it easier to manage edges and contours compared to static razor cartridges.

Inventive Principle:
Principle #15Dynamics

4Adaptability or versatility

If multiple separate tools are used for shaving and trimming, then functional capability is improved, but time required for grooming process increases

Engineering Contradiction:
Improvefunctional capabilityVSAvoidgrooming process time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The integrated handle allows users to perform both shaving and trimming operations in a single continuous action, eliminating the need to switch between separate tools. This merging of functions directly reduces the time required for the overall grooming process while maintaining full functional capability.

Inventive Principle:
Principle #5Merging (Combining)

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 integrated tool allows for cleaner edging and trimming of longer hair lengths, reducing the need for multiple devices and enhancing convenience by providing both shaving and trimming capabilities in one unit, thus streamlining personal grooming processes.

Implementation Method 1

The blade is capable of operating in a reciprocating motion via any suitable power source (e.g., a battery or alternating current)

Methodology Applied
Scientific EffectMechanical cutting:

Implementation Method 2

The comb, which may be removably positioned over the reciprocating blade, allows hair to be aligned to facilitate the trimming operation

Methodology Applied
Scientific EffectMechanical alignment:

Implementation Method 3

the comb may space the reciprocating blade from the skin to allow hair (such as the eyebrows) to be trimmed down to a particular length

Methodology Applied
Scientific EffectMechanical spacing:

Data Source

PatentEP1904278B1Integrated wet shaving and trimming implement
Publication Date: 2011.04.06 EVEREADY BATTERY CO INC
  • EP1904278B1 patent drawingFigure 1
  • EP1904278B1 patent drawingFigure 2
  • EP1904278B1 patent drawingFigure 3

AI summary

An integrated wet shaving and precision trimming implement (10) includes a handle (30) ; a razor cartridge (20) attached thereto; and a trimming tool (40) removably located in the handle. The trimming tool is configured for trimming hair at an edge of a hirsute area . A trimming implement for use during a shaving operation is insertable into a chamber (34) defined by a razor handle (30) and includes a shaft (44) ; a blade (46) attached to the shaft (44) ; a comb (49) attached over the blade; and a cap (42) attached to an end of the shaft. The cap (42) is receivable on the razor handle (30) to retain the trimming implement (40) in the chamber (34) defined by the razor handle (30) . A trimmer (240) integrated with a handle (230) of a shaving implement includes a reciprocatingly mounted blade (242) and a comb (250) mounted over the blade. The blade (242) is capable of operating in a reciprocating motion via any suitable power source .