Adjustable Weight Shaver Handle with Spring-Loaded Cavity

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Shaver handles typically have a fixed, non-adjustable weight, which does not allow users to customize the weight based on their preferences or shaving needs.

Innovation Solution

A shaver handle assembly with a cavity that allows for the insertion and securement of adjustable weights using a cap and biasing member, such as a spring or telescoping rod, to enable users to customize the weight by adding or removing weights.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed weight shaver handle is used, then the manufacturing is simple and cost-effective, but the user cannot customize the weight for their preferences or shaving needs

Engineering Contradiction:
Improveweight adjustabilityVSAvoidhandle structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The shaver handle is divided into separate components: a handle body, a removable cap, and interchangeable weights. This segmentation allows users to customize the weight by adding or removing weights while keeping the manufacturing of each individual component relatively simple.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The handle transitions from a static fixed-weight design to a dynamic adjustable-weight design. Users can modify the weight configuration based on their needs, and the spring mechanism dynamically secures different weight combinations within the handle body.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If weights are added to make the handle adjustable, then user preference customization is enabled, but the risk of moisture entering the cavity and causing contamination increases

Engineering Contradiction:
Improveweight customizationVSAvoidmoisture contamination risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The weights are nested within the handle body cavity, which is then sealed by the cap. This nested structure protects the weights from external moisture and contamination while allowing weight adjustment through the removable cap mechanism.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The spring acts as an intermediary element that secures the weights within the cavity while maintaining a sealed environment. The cap serves as another intermediary that seals the cavity when closed, preventing moisture ingress while still allowing access for weight adjustment.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If a removable cap is used to access the cavity for weight adjustment, then user accessibility is improved, but the reliability of the seal may be compromised

Engineering Contradiction:
Improveweight adjustment accessibilityVSAvoidseal integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The cap is designed to be easily removed and reattached, extracting the sealing function into a dedicated component that can be reliably opened and closed. This allows users to access the weights for adjustment while maintaining a reliable seal when the cap is closed.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The spring is pre-installed within the cavity to maintain a ready-to-secure state. When weights are added or adjusted, the spring automatically engages to secure them, and the cap can then be closed to seal the cavity, ensuring reliability is restored after each adjustment.

Inventive Principle:
Principle #10Preliminary action

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

Enables users to personalize the weight of the shaver handle for improved control, maneuverability, and shaving performance, while maintaining a moisture-sealed environment to prevent contamination.

Implementation Method 1

a biasing member configured to abut at least one of the one or more weights, to secure the one or more weights within the cavity

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a telescoping rod configured to secure the one or more weights within the cavity, wherein the telescoping rod includes two or more sections configured to slide relative to one another as the telescoping rod is compressed or extended

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS11273566B2Shaver handle with adjustable weight
Publication Date: 2022.03.15 BIC VIOLEX SA
  • US11273566B2 patent drawing
  • US11273566B2 patent drawing
  • US11273566B2 patent drawing

AI summary

A shaver handle assembly may include: a body defining a cavity; one or more weights insertable into the cavity; a cap removably coupled to the body to enable access to the cavity when the cap is removed from the body; and a biasing member configured to abut at least one of the one or more weights, to secure the one or more weights within the cavity.