Angular Drill Cushion Attachment for Hand Force and Surface Protection
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Solution Overview
Problem
Angular drill assemblies, such as 90-degree and 45-degree drill assemblies, cause operator discomfort due to direct hand force application and risk surface damage during operation, as gloves are not always approved for use with rotary tools, leading to a need for hand cushioning and surface protection.
Innovation Solution
A removable attachment assembly for angular drill assemblies, comprising a base member and securement assembly for securing to the drill housing, along with a cushion member to absorb hand force and prevent surface impacts, featuring a resilient thermoplastic polyurethane cushion and securement mechanism using zip ties and lanyards for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operator applies force directly to the drill housing with their hand, then the drilling operation can be performed, but the operator experiences discomfort and hand injury risk
Solution Approach 1:
A cushioning member is introduced as an intermediary element between the operator's hand and the drill housing. This cushioning member distributes the applied force over a larger surface area, reducing pressure concentration on the operator's hand while still allowing effective drilling operation.
Solution Approach 2:
The cushioning member is constructed from flexible, compressible materials such as foam or rubber. These materials deform under applied force, absorbing shock and distributing pressure evenly across the contact area, thereby protecting the operator's hand from discomfort and injury.
2Ease of repair
If the drill bit is backed off from the drilling position, then the drill bit can be removed, but the drill housing may collide with and damage the workpiece surface
Solution Approach 1:
The cushioning member is positioned on the drill housing in advance, before any potential collision can occur. This pre-positioned cushioning layer absorbs impact forces during drill bit retraction or removal, preventing direct contact between the hard housing and the workpiece surface, thereby avoiding marring or damage.
Solution Approach 2:
The potentially harmful impact force during drill bit retraction is converted into a beneficial cushioning effect. The cushioning member deforms under the impact, dissipating energy that would otherwise damage the workpiece, thus transforming a harmful collision into a protective mechanism.
3Adaptability or versatility
If a forty-five degree drill assembly is used, then angular drilling capability is provided, but the operator has difficulty urging the drill bit perpendicular to the surface
Solution Approach 1:
The cushioning member serves as a mediator that provides a stable, perpendicular reference surface for force application. Even though the drill bit is angled at 45 degrees, the operator can apply force perpendicular to the cushioning member's surface, which translates to the correct drilling angle, improving control and accuracy.
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
The attachment assembly reduces operator discomfort by cushioning hand force and minimizes surface damage by absorbing impacts, ensuring safer and more comfortable drilling operations while protecting fabricated structures from drill assembly collisions.
Implementation Method 1
a cushion member associated with the base member... cushioning hand force... absorb impacts
Data Source
AI summary
A removable attachment assembly for an angular drill assembly, which includes a base member and a securement assembly secured to the base member for releasably securing the base member to a housing of the angular drill assembly. The removable attachment assembly further includes a cushion member associated with the base member.