Railing Fastening Device With Pivoting Gripping Elements

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Solution Overview

Problem

Existing fastening devices for railings are complex and require drilling or modification, making it difficult to attach accessories like planking to railings without compromising the structure.

Innovation Solution

A fastening device with a first and second gripping means, a fastening means, and a spreading means that allows for easy attachment to a railing profile by gripping into undercuts without drilling, using a clamping force to secure the attachment, which can be a planking element, without requiring modification to the railing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If traditional fastening devices are used to attach accessories to railings, then secure fastening is achieved, but drilling or modification of the railing is required

Engineering Contradiction:
Improveease of attachmentVSAvoidmodification of railing
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The fastening device is divided into separate gripping elements that can be independently inserted into the profile groove and undercuts, allowing attachment without modifying the railing structure itself

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gripping elements act as intermediaries between the attachment and the railing profile, engaging with existing features (groove and undercuts) to provide secure fastening without direct connection or modification

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If existing fastening devices are used, then stable attachment is achieved, but the device complexity increases

Engineering Contradiction:
Improvestability of attachmentVSAvoidcomplexity of fastening device
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple gripping elements are combined into a single integrated fastening device that can simultaneously engage with the profile groove and multiple undercuts, providing stable attachment while maintaining device simplicity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The fastening device is designed to work with standard profile grooves and undercuts that may already exist in various railing systems, making it universally applicable without requiring complex custom-designed components

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

3Ease of operation

If gripping elements are inserted into undercuts without drilling, then ease of attachment is improved, but the clamping force required increases

Engineering Contradiction:
Improveease of attachmentVSAvoidclamping force
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The gripping elements are designed to nest within the profile groove and undercuts, utilizing the existing geometric features to mechanically lock the attachment in place without requiring excessive clamping force

Inventive Principle:
Principle #7Nested doll (Nesting)

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

Enables simple and stable attachment of accessories to existing railings without modifying the railing, allowing for adjustable positioning and secure fastening without lateral or downward movement, suitable for various materials like laminate boards, glass, or sheet metal.

Implementation Method 1

The gripping elements are held in the undercuts in a force-fitting manner by means of the spreading means

Methodology Applied
Scientific EffectClamping force: Friction

Data Source

PatentEP3951114B1Fixing device
Publication Date: 2024.10.09 CROSO INT
  • EP3951114B1 patent drawingFigure 1~4
  • EP3951114B1 patent drawingFigure 5A~6
  • EP3951114B1 patent drawingFigure 7~9

AI summary

The invention relates to a fastening device (100) for fastening an attachment (200) to a profile (106) of a railing, comprising a first gripping means (101), a second gripping means (102), a fastening means (103), and a spreading means (201), wherein the first gripping means (101) comprises a first gripping element (900) and the second gripping means (102) comprises a second gripping element (901), wherein the first gripping means (101) is pivotably mounted on the second gripping means (102), wherein the spreading means (201) is configured to trigger a pivoting of the first gripping means (101) relative to the second gripping means (102), wherein a distance between the first gripping element (900) and the second gripping element (901) is changed during the pivoting, wherein the second gripping means (102) comprises a receiving area (600) for the fastening means (103), and wherein the fastening means (103) can be inserted into the receiving area (600),and wherein the fastening means (103) is designed to be attached to the attachment part (200).