Modular Woodworking Jig Layout for Same-Side Clamping Clearance

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Solution Overview

Problem

Woodworking tools, such as pocket hole jigs, face challenges in achieving efficient and interference-free designs that allow for same-side drilling and clamping, often resulting in bulkier and more costly solutions due to increased clearance requirements.

Innovation Solution

The development of modular track and flip stop systems with corrugated surfaces and a modular miter gauge head and bar system that enable custom jigs and fixtures, allowing for efficient alignment, guiding, and holding of workpieces without the need for extensive disassembly, and incorporating features like L-shaped adapter plates and adjustable bolts for improved usability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the base thickness is increased to provide additional clearance for the clamping mechanism, then the clearance for the clamping mechanism is improved, but the device becomes bulkier and more costly

Engineering Contradiction:
Improveclearance for clamping mechanismVSAvoidbase thickness
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The base is divided into two identical mating parts that can be separated, allowing the bolt to be moved without disassembling the entire bolt and flip arm assembly. This segmentation enables access to internal components while maintaining a compact overall structure, resolving the contradiction between providing clearance for clamping mechanisms and avoiding increased base thickness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The corrugated surface pattern allows one component to nest within or mate tightly with another, maximizing space utilization. The mating corrugated surfaces enable precise alignment and secure connection between base parts without requiring excessive clearance, thus maintaining a compact design while accommodating necessary mechanical movements.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If the base thickness is increased to provide additional clearance for the clamping mechanism, then the clearance for the clamping mechanism is improved, but the device becomes more costly

Engineering Contradiction:
Improveclearance for clamping mechanismVSAvoidmanufacturing cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

By dividing the base into two identical mating parts, the design allows for standardized manufacturing of modular components. This segmentation enables production of smaller, more manageable parts that can be manufactured more efficiently and assembled to provide necessary clearance without the cost penalty of a single thick base.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The two identical mating parts can serve multiple functions: providing structural support, enabling separation for bolt access, and creating the necessary clearance space. This multi-functionality reduces the need for additional specialized components, thereby lowering manufacturing costs while achieving the clearance requirement.

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

3Manufacturing precision

If modular track and flip stop systems with corrugated surfaces are used, then precise alignment and adjustment of workpieces is enabled, but the device complexity increases

Engineering Contradiction:
Improvealignment precisionVSAvoidmodular system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The corrugated surface pattern allows components to nest together with precise mechanical interlocking. The interlocking corrugations provide inherent alignment features that ensure accurate positioning of modular components without requiring complex alignment mechanisms, thus achieving high precision while managing system complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The corrugated mating surfaces automatically self-align when components are assembled together. The geometric shape of the corrugations guides the components into proper alignment during assembly, eliminating the need for separate alignment procedures or additional alignment features, thereby achieving precise alignment without proportionally increasing device complexity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11338372B2Modular jig and fixture systems and methods
Publication Date: 2022.05.24 MMP OF MERRILL INC
  • US11338372B2 patent drawing
  • US11338372B2 patent drawing
  • US11338372B2 patent drawing

AI summary

Jigs and fixtures for aligning, guiding, and/or holding a workpiece on woodworking machinery during a woodworking operation are described, as well as methods of making, modifying, and using jigs and fixtures.