Multi-Fastener Wrench with Adjustable Jaws

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Solution Overview

Problem

The inefficiency and increased time required in using bolt and nut combinations for construction projects due to the need for tools on both sides of the attaching surface, leading to worker fatigue and reduced productivity.

Innovation Solution

A multi-fastener wrench with independently adjustable jaws that can hold multiple fasteners simultaneously, allowing for quick installation of bolts and nuts without the need for multiple tools, and accommodating various fastener sizes and span distances.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If bolt and nut combinations are used for construction projects, then joint strength and reliability are improved, but installation time and worker fatigue increase due to the need for tools on both sides of the attaching surface

Engineering Contradiction:

Improvejoint strengthVSAvoidinstallation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent combines multiple fastening functions into a single tool by integrating multiple wrenches with different jaw configurations onto one handle, allowing simultaneous operation on multiple fasteners during a single installation pass

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The multi-wrench tool serves multiple functions by incorporating different jaw sets designed for various fastener types and sizes, enabling the worker to handle multiple fastening operations with one universal tool rather than requiring separate tools for each fastener

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If multiple tools are used to hold and tighten fasteners on both sides of the attaching surface, then fastening reliability is improved, but device complexity and ease of operation deteriorate

Engineering Contradiction:

Improvefastening reliabilityVSAvoidnumber of tools required

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple separate wrench tools into a single integrated multi-wrench tool, reducing the number of separate devices from two or more to one unified tool with multiple functional jaw sets

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The multi-wrench tool provides universal functionality by incorporating multiple jaw sets that can accommodate different fastener types and sizes, replacing the need for multiple specialized tools with one versatile device

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If traditional single fastener installation is used, then ease of operation is maintained, but productivity decreases due to sequential installation requirements

Engineering Contradiction:

Improvesimplicity of fastener installationVSAvoidinstallation speed

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The multi-wrench tool enables preliminary positioning of multiple fasteners simultaneously, allowing the worker to prepare and secure multiple attachment points in one operation rather than sequentially

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The tool enables continuous productive action by allowing the worker to tighten multiple fasteners in a single continuous motion without pausing to switch tools or reposition between fasteners

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentUS10449660B2Multi-fastener wrench

Publication Date: 2019.10.22 DEB

AI summary

A multi-fastener wrench for simultaneously or concurrently holding a plurality of fasteners, wherein the wrench comprises a handle having a distal end and a proximal end, and two sets of jaws at or new the distal end. The jaws may be movably coupled to the handle, allowing the user to vary the distance between the jaws.