Armrest Heat Shield for Handheld Motor Devices

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Solution Overview

Problem

Classical handheld motor devices for lawn and garden tasks face heat-related issues and ergonomic concerns, particularly during extended use, as they fail to provide effective heat shielding and proper safety orientation.

Innovation Solution

The design of an armrest heat shield system comprising a guard with inclined members and a clamp with planar flanges, which secures to the device's elongated shaft, providing a shield surface to mitigate heat exposure and improve user comfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional handheld motor devices are used for extended periods, then productivity is maintained, but heat exposure to the user increases causing harmful effects

Engineering Contradiction:

Improveextended use capabilityVSAvoidheat exposure

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

A heat shield guard is introduced as an intermediary component between the heat-generating motor and the user's arm. The guard includes a proximate member with a shield surface positioned between the motor and the user, actively blocking heat transfer while allowing the device to continue operating for extended periods without exposing the user to harmful thermal effects.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the device operates for prolonged periods, then productivity increases, but ergonomic issues worsen due to lack of heat protection

Engineering Contradiction:

Improveprolonged use durationVSAvoidergonomic comfort

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The heat shield guard serves as a protective intermediary that improves ergonomic comfort during prolonged operation. By positioning the shield surface between the motor and the user's arm, it creates a thermal barrier that maintains comfort levels, enabling the user to operate the device for longer durations without ergonomic degradation from heat exposure.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If traditional devices are used without heat shielding, then device complexity is minimized, but safety orientation and protection are insufficient

Engineering Contradiction:

Improvestructural simplicityVSAvoidsafety protection

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

A heat shield guard is introduced as a protective intermediary component between the heat-generating motor and the user's arm. The guard includes a proximate member with a shield surface positioned between the motor and the user, actively blocking heat transfer while allowing the device to continue operating for extended periods without exposing the user to harmful thermal effects.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The heat shield guard is segmented into distinct components: a proximate member with a shield surface, a distal member, and inclined members. This segmentation allows each component to perform its specific function efficiently while maintaining overall structural simplicity and ease of attachment to the device shaft.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS10046453B1Weed trimmer heat shield

Publication Date: 2018.08.14 LINEBACK MICHAEL D

AI summary

Armrest heat shield and handheld device systems and methods are shown and described. In one embodiment, the armrest heat shield includes a guard and a clamp. In another embodiment, a handheld device includes an elongated shaft, a gas powered motor, a cutting assembly, and an armrest heat shield aligned sustainably parallel on the shaft above the motor.