Hammer Drill Dust Collector Handle Mount for Better Balance

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Solution Overview

Problem

The attachment of a dust collector to a power tool often displaces the center of gravity, increasing the load on the user's hand and affecting operability.

Innovation Solution

The dust collector is integrated into the power tool and attached to the handle, allowing it to be carried together with the tool, with a dust collecting part surrounding the tool accessory and connected to the handle via a handle connection part, providing a stable attachment point and efficient dust collection mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the dust collector is attached to the tool accessory side distant from the handle, then the dust collection function is improved, but the center of gravity is displaced to the tool accessory side increasing the load on the user's hand

Engineering Contradiction:

Improvedust collection efficiencyVSAvoidoperability

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

A connection member is introduced as an intermediary component between the dust collector and the power tool. This connection member has a first connection portion that couples to the dust collector and a second connection portion that couples to the power tool body, enabling flexible positioning of the dust collector while maintaining balanced center of gravity and stable attachment

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If the dust collector is attached to the handle, then the center of gravity is kept close to the handle improving operability, but the attachment stability may be reduced

Engineering Contradiction:

ImproveoperabilityVSAvoidattachment stability

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The attachment system is segmented into multiple independent connection portions: a first connection portion for attaching the dust collector and a second connection portion for attaching to the power tool body. This segmentation allows the dust collector to be stably secured through multiple attachment points while keeping the overall structure balanced and ergonomic

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If the dust collector is integrally attached to the power tool, then the dust collector can be carried together with the power tool, but the device complexity increases

Engineering Contradiction:

ImproveportabilityVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connection member serves multiple functions: it acts as both the attachment mechanism for the dust collector and the structural link for carrying the power tool. The first connection portion provides dust collector attachment while the second connection portion provides power tool attachment, enabling the dust collector to be carried together with the power tool through a single integrated component rather than multiple separate attachments

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11305393B2Dust collector and work tool provided with dust collector

Publication Date: 2022.04.19 MAKITA CORP

AI summary

To provide an improved technique for improving operability in an operation using a power tool with a dust collector attached thereto, a hammer drill to which a dust collector is attached has a body and a handle. The dust collector has a dust collecting part and a male plug. The dust collector is attached to the hammer drill by connecting the male plug to the handle of the hammer drill.