Drill Bit Connector With Magnetic Quick-Change Coupling

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Solution Overview

Problem

Existing drill and torque bit systems require time-consuming bit changes and are cumbersome when working with various fasteners and in tight spaces, as they often necessitate constant adjustment of drill chucks and bit changes, especially when using power tools.

Innovation Solution

A novel drill/torque head connector with a male Torx magnetic bit and female Torx opening that allows for quick and easy interchange of drill bits, enabling secure attachment and detachment at various angles, compatible with any power tool, and capable of receiving drive gear rotation for efficient drilling and torquing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If standard drill chuck is used for holding drill bits, then the tool can securely hold the bit, but changing bits becomes time-consuming and cumbersome

Engineering Contradiction:
Improvebit holding securityVSAvoidbit change time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The drill bit holder is divided into two separate components: a male portion attached to the drill bit and a female portion integrated into the power tool. This segmentation allows the bit to be quickly detached and reattached without manipulating the entire chuck assembly, significantly reducing bit change time while maintaining secure holding through the interlocking male-female connection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection mechanism transitions from a static, fixed chuck to a dynamic, movable system where the male and female portions can be quickly engaged and disengaged. The spring-loaded ball detent mechanism enables rapid transition between locked and unlocked states, allowing operators to change bits in seconds rather than minutes.

Inventive Principle:
Principle #15Dynamics

2Productivity

If dedicated drilling device is carried for different fasteners, then specific fasteners can be handled efficiently, but the tool becomes cumbersome and laborious

Engineering Contradiction:
Improvefastener handling efficiencyVSAvoidtool portability
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The power tool is designed with a universal female portion that can accommodate multiple types of male portions for different fastener types (Torx, Phillips, flathead, hex). This multi-functionality allows a single tool to handle various fasteners efficiently, eliminating the need to carry multiple dedicated tools while maintaining productivity across different fastening applications.

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

3Adaptability or versatility

If drill bit changes are required frequently for different fasteners, then versatility is achieved, but user effort and time on job sites increases

Engineering Contradiction:
Improvefastener type accommodationVSAvoidbit change effort
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The spring-loaded ball detent mechanism provides automatic engagement and locking when the male portion is inserted into the female portion. The operator simply needs to insert the male portion, and the spring-loaded balls automatically snap into place to secure it, eliminating the need for manual tightening or complex locking procedures. This self-service feature reduces the effort required for bit changes while maintaining secure attachment.

Inventive Principle:
Principle #25Self-service

4Adaptability or versatility

If standard drill chuck design is used, then compatibility with power tools is maintained, but quick bit change capability is not achieved

Engineering Contradiction:
Improvepower tool compatibilityVSAvoiddrilling operation speed
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The male-female connection system acts as an intermediary mechanism between the power tool's drive gear and the drill bit. Instead of directly coupling the bit to the chuck, this intermediate connection system enables rapid bit changes while maintaining compatibility with standard power tool drive mechanisms, thus improving drilling operation speed without sacrificing tool compatibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Facilitates faster and more efficient drilling and torquing operations by allowing quick bit changes and accommodating different fasteners, even in confined spaces, reducing user effort and time on job sites.

Implementation Method 1

The drill/torque bit includes magnetic properties within a male torx magnetic bit and a female torx opening to easily secure and interchange drill bits

Methodology Applied
Scientific EffectMagnetic properties: Magnetism

Data Source

PatentUS20240335924A1Bit Change Connector
Publication Date: 2024.10.10 GAYTON STEPHEN
  • US20240335924A1 patent drawing
  • US20240335924A1 patent drawing
  • US20240335924A1 patent drawing

AI summary

A power tool drill/torque head bit connector is configured to be removably attached to a power tool and offers an alternative to changing drill/torque bits. The drill/torque head bit connector further comprises a chuck coupling portion and a bit securement portion for removably accommodating a drill bit or a torque bit. The chuck coupling portion and the bit securement portion are at opposing ends of the drill/torque head bit connector. The chuck coupling portion for coupling to the power tool. The chuck coupling portion having a male coupler configured to couple to a female coupler port of the power tool for receiving drive gear from the power tool. The bit securement portion configured to accommodate various bits and enables faster bit exchanges for drilling and/or torquing.