Drill Resistance Measurement U-Shaped Guide Elements

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Solution Overview

Problem

Existing drill resistance measurement devices are cumbersome and difficult to maneuver in confined spaces due to their length and lack of visibility, leading to potential damage from drill bit fractures or bending.

Innovation Solution

The device employs U-shaped guide elements with legs of different lengths and a self-lubricating guideway, allowing for a more compact design and continuous observation of the drill bit, along with a transparent housing for monitoring and a secure, vibration-dampening mechanism to prevent damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If telescopic cylindrical sleeves are used to guide the drill bit, then the drill bit is securely supported and protected against buckling, but the device becomes much longer and more bulky

Engineering Contradiction:
Improvedrill bit support and protection against bucklingVSAvoiddevice length
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The single telescopic cylindrical sleeve is segmented into multiple U-shaped guide elements that can move independently along the drilling axis. Each U-shaped guide element has legs of different lengths with passages for the drill bit, allowing distributed support along the drilling path while reducing overall device length.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The guide elements are made movable along the drilling axis rather than being fixed in a telescopic arrangement. This dynamic configuration allows the guide elements to adjust their positions to provide continuous support to the drill bit during penetration, maintaining reliability while enabling a more compact device structure.

Inventive Principle:
Principle #15Dynamics

2Reliability

If telescopic cylindrical sleeves are used to guide the drill bit, then the drill bit is protected against buckling, but the ratio of drilling depth to device length becomes unfavorable

Engineering Contradiction:
Improvedrill bit stability during drillingVSAvoiddrilling depth to device length ratio
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The drilling support function is segmented across multiple U-shaped guide elements positioned at different locations, allowing the device to achieve adequate support for deep drilling (40-50 cm or more) without requiring a proportionally long overall device structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The guide elements are arranged in a U-shape configuration with legs extending in different directions, utilizing spatial arrangement in multiple dimensions to provide effective drill bit guidance while minimizing the linear length of the device.

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

3Reliability

If the drill bit is enclosed in telescopic guide sleeves, then the drill bit is protected, but it cannot be observed or controlled during the drilling process

Engineering Contradiction:
Improvedrill bit protectionVSAvoiddrill bit visibility for observation and control
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

At least parts of the external housing are made transparent, allowing continuous visual observation of the drill bit during the drilling process. This enables operators to monitor for drill bit bending or breakage in real-time while maintaining protection through the transparent housing structure.

Inventive Principle:
Principle #32Color changes

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

This configuration results in a more space-efficient and secure measurement system with improved handling and precision, enabling safe operation and reduced risk of damage to the device, even in tight quarters.

Implementation Method 1

a self-lubricating guideway

Methodology Applied
Scientific EffectSelf-lubrication: Lubrication

Data Source

PatentUS9469008B2Apparatus for measuring drilling resistance in a material to be examined
Publication Date: 2016.10.18 RINN FRANK
  • US9469008B2 patent drawing
  • US9469008B2 patent drawing
  • US9469008B2 patent drawing

AI summary

A device for measuring resistance to drilling in a material being investigated, especially wood, with a drilling appliance (1) driving a drill bit (2) into the material and a measuring device for measuring the mechanical resistance to the drill bit (2) upon its penetration into the material, is configured and modified in regard to a secure measurement even in tight space conditions around the material being investigated such that the drilling appliance (1) is coordinated with several U-shaped guide elements (4) which can move along a drilling axis (3) with legs (5, 6) of different length and a base region (7) joining the two legs (5, 6), and in each longer leg (6) a passage (8) is formed for the drill bit (2) in order to guide the drill bit (2).