Multi-Joining Jig With Interchangeable Templates for Precise Routing

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Solution Overview

Problem

Existing woodworking methods for connecting workpieces using connectors like dovetails, box joints, mortise and tenon, dowels, biscuits, and dominos require individual structures, which are expensive and occupy significant workshop space.

Innovation Solution

A multi-joining system comprising a workpiece joining jig with a template holding jig and a workpiece support that allows for precise orientation and positioning of templates and workpieces, enabling various connections such as dovetails, mortise and tenon, dowels, dominos, and butterflies, while reducing space requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If individual structures are used for each connection type (dovetails, box joints, mortise and tenon, dowels, biscuits, dominos), then each connection can be formed with high precision, but the workshop space required and cost increase significantly

Engineering Contradiction:
Improveconnection precisionVSAvoidworkshop space
Core Design Contradiction:
Manufacturing precisionVSArea of stationary object

Solution Approach 1:

The patent implements a universal jig system with interchangeable templates that can form multiple connection types (dovetails, box joints, mortise and tenon, dowels, biscuits, dominos) using a single base structure. The template holder accepts different templates for various joint types, eliminating the need for separate dedicated jigs for each connection method, thus reducing workshop space while maintaining precision.

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

Solution Approach 2:

The system divides the connection-forming capability into separate interchangeable templates that can be attached to a single template holder. Each template is designed for a specific connection type, allowing the user to swap templates as needed rather than having multiple complete jig structures, thereby reducing space requirements while preserving manufacturing precision for each joint type.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If individual structures are used for each connection type, then each connection can be formed with high precision, but the cost increases significantly

Engineering Contradiction:
Improveconnection precisionVSAvoidcost
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent implements a universal jig system with interchangeable templates that can form multiple connection types (dovetails, box joints, mortise and tenon, dowels, biscuits, dominos) using a single base structure. The template holder accepts different templates for various joint types, eliminating the need for separate dedicated jigs for each connection method, thus reducing workshop space while maintaining precision.

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

Solution Approach 2:

The system divides the connection-forming capability into separate interchangeable templates that can be attached to a single template holder. Each template is designed for a specific connection type, allowing the user to swap templates as needed rather than having multiple complete jig structures, thereby reducing space requirements while preserving manufacturing precision for each joint type.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If a multi-joining system is used to reduce space and cost, then versatility is improved, but the complexity of the device increases

Engineering Contradiction:
Improveconnection type versatilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal jig system with interchangeable templates that can form multiple connection types (dovetails, box joints, mortise and tenon, dowels, biscuits, dominos) using a single base structure. The template holder accepts different templates for various joint types, eliminating the need for separate dedicated jigs for each connection method, thus reducing workshop space while maintaining precision.

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

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

The system provides accurate and efficient connection of workpieces with reduced space usage and cost, allowing for versatile and precise routing operations.

Implementation Method 1

a vacuum arrangement comprising a cavity defined by a top surface of the template support and a bottom surface of the template, the vacuum arrangement defining a flow path for a flow of dust from the workpiece through an inlet of the cavity and an outlet of the cavity

Methodology Applied
Scientific EffectVacuum suction: Suction

Data Source

PatentEP4349552B1Multi-joining system
Publication Date: 2025.09.10 BAM IP HOLDING LLC
  • EP4349552B1 patent drawingFigure 1
  • EP4349552B1 patent drawingFigure 2
  • EP4349552B1 patent drawingFigure 3

AI summary

A template holding jig for holding a template for use with a router for routing a workpiece is provided. The holding jig may also be part of a workpiece joining jig that includes a plurality of templates. The template holding jig includes a template support, a workpiece support and a template guide. The template support defines a template support plane. The workpiece support defines a workpiece support plane extending perpendicular to the template support plane. The template guide defines at least one abutment preventing motion of a template located on the template support parallel to a first axis being parallel to the workpiece support plane and parallel to the template support plane. The at least one abutment permits motion of the template parallel to a second axis being orthogonal to the workpiece support plane and perpendicular to the first axis and parallel to the template support plane.