Shaver Cleaning Cartridge Orientation for Compact Docking

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Solution Overview

Problem

Maintenance of shavers, including cleaning and lubrication of moving parts, is onerous for users, and existing shaver cleaning solutions are not efficient in space utilization and packaging.

Innovation Solution

A shaver cleaning station assembly with a cartridge that can be oriented in two ways for secure or unsecured insertion into a slot, allowing for space-saving design and easy replacement, featuring a cleaning cradle with a sloping base surface for efficient liquid drainage and debris separation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the cartridge is designed to be fully securable in the slot only in one orientation, then reliable fluid connection is achieved, but space utilization and packaging efficiency deteriorate

Engineering Contradiction:
Improvefluid connection reliabilityVSAvoidspace utilization
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The cartridge's mounting feature automatically orients itself during insertion into the slot, with the locating part guiding the cartridge into the correct position where the mounting feature engages with the locating part. This self-orienting mechanism ensures reliable fluid connection without requiring manual orientation adjustments, while still allowing the cartridge to be partially inserted in alternative orientations for space-saving storage.

Inventive Principle:
Principle #25Self-service

2Reliability

If the cartridge is designed for secure mounting only, then fluid connection is ensured, but ease of replacement and packaging efficiency worsen

Engineering Contradiction:
Improvefluid connectionVSAvoidcartridge replacement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The cartridge insertion process is segmented into two distinct states: a first orientation where the mounting feature engages with the locating part for secure mounting and fluid connection, and a second orientation where the cartridge is partially inserted without engagement for space-efficient packaging and easy handling. This segmentation allows the same cartridge design to serve both secure operation and convenient replacement needs.

Inventive Principle:
Principle #1Segmentation

3Volume of moving object

If the slot is designed to fully accommodate the cartridge in all orientations, then packaging efficiency improves, but device complexity increases

Engineering Contradiction:
Improvepackaging efficiencyVSAvoidslot design complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The slot and cartridge mounting features are designed with asymmetric geometry that naturally guides the cartridge into the correct orientation during insertion. The locating part has a specific shape that complements the mounting feature, creating a unique engagement configuration. This asymmetric design ensures proper orientation without requiring complex mechanical guides or adjustment mechanisms, maintaining simplicity while enabling space-efficient packaging.

Inventive Principle:
Principle #4Asymmetry

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 convenient and space-efficient cleaning and lubrication of shavers, minimizing debris sedimentation and optimizing packaging, while ensuring efficient liquid drainage and lubrication of moving parts.

Implementation Method 1

a sloping base surface for efficient liquid drainage

Methodology Applied
Scientific EffectGravitational flow: Gravitation

Data Source

PatentEP4670934A1Shaver cleaning station assembly
Publication Date: 2025.12.31 BRAUN GMBH
  • EP4670934A1 patent drawingFigure 1A
  • EP4670934A1 patent drawingFigure 1B
  • EP4670934A1 patent drawingFigure 1C

AI summary

Provided is a shaver cleaning station assembly (10) comprising a shaver cleaning station (14) and a cartridge (22) for inserting into a slot defined in the shaver cleaning station. The cartridge is suitable for containing cleaning liquid for cleaning a shaver (12) docked in the shaver cleaning station.