Dust Collector Handle-Cover Layout for Compact Battery Access

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Dust collecting devices face challenges in handling and battery attachment due to increased product size when both a handle and a cover are provided, making it difficult to attach and detach batteries efficiently.

Innovation Solution

A dust collecting device design where a handle can be raised and turned down around a handle rotation shaft, and a cover can be opened and closed around a cover rotation shaft, with the cover rotation shaft positioned closer to the grip portion than the handle rotation shaft, allowing for a large opening without increasing product size, and including a battery connection portion and a switch for easy battery attachment and detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If both a handle and a cover are provided in the dust collecting device, then the ease of operation is improved, but the product size increases

Engineering Contradiction:
Improveease of operationVSAvoidproduct size
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The patent combines the handle and cover into a single integrated structure where the cover serves dual functions: protecting the battery compartment and acting as the handle grip. This merging eliminates the need for separate components, maintaining ease of operation while reducing overall product size.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cover is designed to perform multiple functions simultaneously: it protects the internal components (battery compartment), serves as the user's grip point (handle function), and provides structural support. This multi-functionality allows the device to maintain operational ease without requiring additional dedicated handle components that would increase size.

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

2Volume of moving object

If the product size is reduced, then the volume of moving object is improved, but the ease of operation deteriorates due to difficulty in attaching and detaching battery

Engineering Contradiction:
Improveproduct sizeVSAvoidease of operation
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The patent segments the cover into a removable or openable section that provides access to the battery compartment. This segmentation allows the battery to be easily attached and detached through a designated opening in the cover, maintaining ease of operation despite the compact overall size of the device.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2907439B1Dust collecting device
Publication Date: 2019.12.11 MAKITA CORP
  • EP2907439B1 patent drawingFigure 1
  • EP2907439B1 patent drawingFigure 2
  • EP2907439B1 patent drawingFigure 3

AI summary

A dust collecting device includes a tank (2) and a main body (3) housing a motor (11) and detachably attachable to an upper part of the tank (2). A handle (31) and a cover (58) are both provided in an upper part of the main body (3). The handle (31) is capable of being raised and turned down around a handle rotation shaft (32). The cover (58) is capable of being opened and closed around a cover rotation shaft (61) and covers a housing portion (36) provided in the main body (3) in a closed position. The cover rotation shaft (61) is provided in parallel to the handle rotation shaft (32). The cover rotation shaft (61) is positioned closer to a grip portion (G) of the handle (31) than the handle rotation shaft (32) so as to overlap with a part of the handle (31). The handle rotation shaft (32) is positioned closer to the cover (58) than the cover rotation shaft (61) so as to overlap with a part of cover (58).