Handle-Integrated Radio Adapter for Dustproof Portable Machining

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Solution Overview

Problem

Conventional portable machining devices have inadequate dustproofing of communication adapters, which are exposed and prone to damage from cutting dust, compromising their functionality and reliability.

Innovation Solution

The communication adapter for radio communication is housed internally within the machining device main body, allowing for improved dustproofing and ease of use, with options for placement above the electric motor, at the handle, or near the motor for enhanced reliability and usability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the communication adapter is exposed to the outside for radio communication, then the ease of operation is improved, but the dustproof ability deteriorates

Engineering Contradiction:
Improveease of operationVSAvoiddustproof ability
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The communication adapter is nested inside the dust collection bag, which itself is attached to the machining device. This nesting arrangement allows the adapter to remain protected within the dustproof environment of the bag while still enabling radio communication functionality through the bag material.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The dust collection bag serves as an intermediary between the communication adapter and the external environment. It provides a dustproof barrier while allowing radio waves to pass through, enabling communication without direct exposure to cutting dust.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If the communication adapter is provided inside the machining device main body for dustproofing, then the dustproof ability is improved, but the ease of operation deteriorates

Engineering Contradiction:
Improvedustproof abilityVSAvoidease of operation
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The communication adapter is nested inside the dust collection bag rather than being fixed deep within the machining device main body. This allows the adapter to be accessed by removing the dust collection bag, making installation and removal convenient while maintaining dustproof protection when the bag is attached.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The position of the communication adapter is made dynamic rather than fixed. It can be easily installed and removed by attaching or detaching the dust collection bag, allowing the system to adapt between protected operation mode and maintenance mode.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the communication adapter is exposed outside, then the ease of operation is improved, but the reliability deteriorates due to dust damage

Engineering Contradiction:
Improveease of operationVSAvoidreliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The communication adapter is nested within the dust collection bag, which is attached to the machining device during operation. This provides reliable dustproof protection while maintaining ease of operation through simple bag attachment and detachment.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The dust collection bag acts as an intermediary protective layer between the communication adapter and cutting dust. It reliably protects the adapter from dust damage while allowing radio communication to function through the bag material.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3385044B1Portable machining device
Publication Date: 2021.05.05 MAKITA CORP
  • EP3385044B1 patent drawingFigure 1
  • EP3385044B1 patent drawingFigure 2
  • EP3385044B1 patent drawingFigure 3

AI summary

A communication adapter (31) for conducting radio communication between a portable machining device (1) and a dust collector (40), such that the dust collector (40) may operate synchronously with the portable machining device (1) with respect to a start/stop operation when performing a cutting task is detachably incorporated in a handle (20) of the portable machining device (1). Because of this arrangement, a high level of dust-proof ability as well as ease of maneuverability in attaching and detaching the communication adapter (31) can be achieved.