Removable Dust Bin Locking and Ejection for Handheld Vacuums

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Solution Overview

Problem

Handheld vacuum cleaners with removable dirt collection bowls often face alignment issues, leading to improper air intake and accidental detachment, making them difficult to use and assemble.

Innovation Solution

A vacuum cleaning device with a locking mechanism and ejection mechanism that allows the dirt collection bin to be easily removed from the housing by moving it away, featuring a biasing member and projecting arms for secure coupling and decoupling, ensuring proper alignment and preventing accidental detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the dirt collection bin is made removable for easy cleaning, then ease of operation is improved, but reliability deteriorates due to misalignment and accidental detachment

Engineering Contradiction:
Improveease of cleaningVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The vacuum cleaner is divided into separable components: the housing and the removable dirt collection bin. This segmentation allows the bin to be easily removed for cleaning while maintaining a secure connection during operation through the locking mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking mechanism is designed to automatically engage and lock the dirt collection bin to the housing when assembled, preventing misalignment and accidental detachment before operation begins. The ejection mechanism also prepares the bin for easy removal by providing initial separation force.

Inventive Principle:
Principle #10Preliminary action

2Volume of moving object

If the dirt collection bin is made smaller for handheld use, then portability is improved, but ease of operation deteriorates due to frequent emptying and cleaning

Engineering Contradiction:
Improvecollection chamber sizeVSAvoidfrequency of maintenance
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The dirt collection bin is designed with dynamic characteristics that facilitate frequent removal and cleaning. The combination of locking mechanism for secure attachment during use and ejection mechanism for easy removal allows the user to quickly service the bin without complex assembly or disassembly procedures.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the locking mechanism is added for secure coupling, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improvecoupling securityVSAvoidmechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking mechanism is designed to automatically engage and lock the dirt collection bin to the housing when the bin is assembled onto the vacuum cleaner body, without requiring manual operation. This self-locking feature provides secure coupling while minimizing user interaction and mechanical complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The locking mechanism integrates multiple functions into a single component system that simultaneously provides alignment guidance, secure locking, and prevention of accidental detachment, reducing the need for separate mechanical elements.

Inventive Principle:
Principle #5Merging (Combining)

4Ease of operation

If the ejection mechanism is added for easy removal, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveremoval easeVSAvoidmechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The ejection mechanism is designed to automatically eject the dirt collection bin from the housing when the locking mechanism is released, without requiring manual pulling or complex disassembly procedures by the user.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The ejection mechanism provides preliminary separation force to overcome the locking engagement and friction, making the bin easy to remove. This pre-applied ejection force counteracts the securing forces before the user completes the removal action.

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS10092147B2Vacuum cleaning device
Publication Date: 2018.10.09 BLACK & DECKER CORP
  • US10092147B2 patent drawing
  • US10092147B2 patent drawing
  • US10092147B2 patent drawing

AI summary

A vacuum cleaning device comprises: a housing; a motor and fan assembly for generating an airflow between an air inlet and an air outlet. A removable dirt collection bin receives dirt in the airflow. The dirt collection bin is located in fluid communication between the air inlet and air outlet and mountable to the housing. A locking mechanism is moveable between a locked position and an unlocked position for releasably coupling the dirt collection bin to the housing. An ejection mechanism arranged to eject the dirt collection bin away from the housing when the locking mechanism is in the unlocked position.