Saw Guide Housing for Precise Finger Guard Profile Hinge Cuts

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Solution Overview

Problem

Existing finger guard profiles are difficult to install accurately and precisely cut to fit around door hinges due to protrusions, requiring complex measurements and potential transmission errors, while maintaining a visually integrated design.

Innovation Solution

A device with a housing and guiding means for a saw blade that clamps the finger guard profile and ensures precise cutting angles, using adapters for various shapes and incorporating a profile end cap to cover openings, allowing for accurate length measurement and cutting without external tools.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the finger guard profile is divided into several sections to accommodate protruding hinges, then the profile can be installed on doors with hinges, but the measurement and cutting precision becomes more difficult and error-prone

Engineering Contradiction:
Improveadaptability to doors with hingesVSAvoidcutting precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent introduces a specialized measuring and guiding device as an intermediary tool between the profile and the cutting operation. This device includes a housing with a recess that clamps the profile, positioning means that define a precise cutting position relative to the profile edge, and a guide for the saw blade. The device acts as a mediator that transfers the clamping position directly to the cutting operation, eliminating measurement and transcription errors that occur when profiles are divided into sections.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Shape

If the finger guard profile is cut to precise length to maintain visual integration, then the aesthetic appearance is improved, but the complexity of measurement and cutting increases

Engineering Contradiction:
Improvevisual integrationVSAvoidmeasurement and cutting complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into a single integrated device: the housing with recess serves as both the clamping mechanism and the reference frame, the positioning means define both the measurement reference and the cutting guide, and the saw blade guide ensures precise perpendicular cutting. This consolidation eliminates the need for separate measuring tools, marking operations, and cutting guides, reducing overall complexity while achieving precise cuts that maintain visual integration.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The device enables self-service measurement and cutting by directly clamping the profile at the required position and providing self-aligning guides for the saw blade. The positioning means automatically establish the correct cutting location relative to the clamped profile, and the guide ensures the blade cuts perpendicular to the profile edge without requiring external marking or alignment operations.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the profile is clamped and moved to access cutting tools, then cutting accessibility is improved, but the risk of position displacement increases

Engineering Contradiction:
Improvecutting accessibilityVSAvoidposition stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent segments the device into a movable housing assembly that clamps the profile and a stationary reference frame defined by the positioning means and saw guide. The housing with the recess and clamping mechanism can be moved along the profile to access different cutting locations, while the positioning means and guide remain fixed relative to the housing to maintain their geometric relationship. This segmentation allows the device to be repositioned for cutting accessibility while maintaining reliable position reference throughout the operation.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4726164A1Device for guiding a saw blade when sawing a finger protection profile, arrangement and door
Publication Date: 2026.04.15 ATHMER
  • EP4726164A1 patent drawingFigure 1~2
  • EP4726164A1 patent drawingFigure 3~4
  • EP4726164A1 patent drawingFigure 5~6

AI summary

The present invention relates to a device for guiding a saw blade when sawing a finger guard profile, comprising at least a housing, wherein the housing is formed by two parallel webs and a base connecting the webs, wherein the housing has a recess, at least one means for guiding the saw blade in a predetermined position relative to a profile edge of the finger guard profile, wherein the at least one means is arranged in the webs and the base, wherein the recess is suitable and configured to clamp the finger guard profile.