Electric Power Tool Lubricant Absorbing Member

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Solution Overview

Problem

Existing electric power tools face the issue of lubricant scattering around the motor due to rotational power, which can lead to lubricant reaching the motor and causing unwanted dispersion.

Innovation Solution

Incorporating an absorbing member with lubricant-absorbing properties between the rotator and the transmission mechanism to prevent lubricant from flowing and scattering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a lubricant is applied to the speed reducer mechanism or drive transmission, then the transmission mechanism operates smoothly with reduced friction, but the lubricant can flow to reach the motor and scatter around due to rotational power

Engineering Contradiction:

Improvesmooth operation of transmission mechanismVSAvoidlubricant scattering around motor

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

An absorbing member is introduced as an intermediary component between the transmission mechanism and the motor. This absorbing member captures and retains the lubricant, preventing it from flowing to the motor and scattering around due to rotational forces, while still allowing the transmission mechanism to operate smoothly

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The harmful effect of lubricant scattering is extracted and isolated from the motor area by using the absorbing member to capture the lubricant at its source near the transmission mechanism, effectively removing the lubricant from the potential scattering path before it can reach the motor

Inventive Principle:

Principle #2Taking out (Extraction)

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

Effectively reduces the chances of lubricant scattering around the rotator, maintaining cleanliness and operational efficiency by absorbing and containing the lubricant.

Implementation Method 1

The absorbing member has a property to absorb a lubricant

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS11499674B2Electric power tool

Publication Date: 2022.11.15 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

AI summary

An electric power tool includes a holder, a motor, and a transmission mechanism. The motor includes a stator and a rotor. The rotor includes a rotary shaft and a rotor body. The rotary shaft is coupled to the transmission mechanism. The rotator includes at least the rotor body. The rotator rotates. The electric power tool further includes an absorbing member. The absorbing member has a property to absorb a lubricant. The absorbing member is arranged between the rotator and the transmission mechanism.