Articulating Drill Lighting Assembly for Debris Visibility

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Solution Overview

Problem

Existing articulating power tools face challenges with poor visibility during operations due to insufficient lighting, especially in confined work areas with debris buildup, where point light emitters are often obfuscated.

Innovation Solution

An articulating hand power tool with a compact design featuring a lighting assembly that emits an elongated beam pattern from the head portion, providing increased illumination at the shaping operation site, and a flexible light pipe that maintains light transmission even as the head housing articulates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If point light emitters are used near the bit holder, then illumination is provided in applications with little debris, but the light emitters are easily obfuscated by debris buildup and limited sight lines in confined work areas

Engineering Contradiction:
Improveillumination at shaping operation pointVSAvoidobfuscation by debris
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The patent transitions from point light sources to an elongated linear light source that extends along the axis of the bit holder. This dimensional change from a point (0D) to a line (1D) light source provides illumination along a extended path, making it less susceptible to complete obfuscation by debris and providing multiple illumination points simultaneously.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The lighting assembly provides differentiated illumination along its length, with the elongated light source creating varied lighting zones. The linear arrangement allows different segments of the light source to illuminate different areas, providing localized quality variations in the illumination pattern.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If articulating gear system is included to enable both straight and angular drilling, then versatility is improved, but device complexity increases

Engineering Contradiction:
Improvedrilling angle capabilityVSAvoidarticulating mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The articulating gear system enables a single drill to perform multiple functions - both straight drilling and angular drilling at various angles. The head portion can be positioned at different angles relative to the main housing, allowing the tool to universally handle different drilling requirements without needing separate tools.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The articulating mechanism allows dynamic adjustment of the head portion angle during operation. The gear system enables the head to be positioned at different fixed angles while maintaining stability at each position, providing both flexibility and operational stability.

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If vacuum system is added to remove cutting debris, then visibility is improved, but control of the tool becomes more cumbersome

Engineering Contradiction:
Improvedebris removalVSAvoidtool control
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent extracts the debris removal function from the tool operation system by relying on natural debris ejection from the shaping operation itself, rather than adding a vacuum system. This eliminates the need for additional controls while maintaining visibility through adequate lighting that allows operators to see and manage debris naturally.

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

Enhances visibility during shaping operations by ensuring consistent illumination across various angles and debris conditions, reducing operational complexity and improving control in poorly lit environments.

Implementation Method 1

a flexible light pipe that maintains light transmission even as the head housing articulates

Methodology Applied
Scientific EffectLight transmission: Light

Data Source

PatentUS8851698B2Articulation drill with illumination
Publication Date: 2014.10.07 ROBERT BOSCH TOOL
  • US8851698B2 patent drawing
  • US8851698B2 patent drawing
  • US8851698B2 patent drawing

AI summary

The present invention is an articulating hand power tool which in one embodiment includes a head portion including a head housing configured to articulate with a main housing, a bit holder rotatably positioned within the head housing, and a lighting assembly configured to emit a first elongated beam pattern from the head portion.