Handrail Element Connector With Axial and Angular Locking

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing handrail assemblies require multiple connectors to join handrail sections of varying shapes and dimensions, and there is a need for secure, stable connections that prevent axial and rotational movement.

Innovation Solution

A handrail element connector with axial and angular coupling portions that engage internal cavities of handrail elements, using coupling flanges and teeth to prevent movement and rotation, and includes fastener-receiving openings for secure attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple specific connectors are used to connect handrail sections of different shapes and dimensions, then the adaptability of the handrail assembly is improved, but the device complexity increases

Engineering Contradiction:

Improveadaptability to different handrail shapes and dimensionsVSAvoidnumber of different connector types required

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connector is designed with a universal structure that can accommodate handrail elements of different shapes and dimensions through a single connector type. The connecting portion engages with the internal cavity of various handrail elements, while the engagement portion connects to adjacent handrail sections, eliminating the need for multiple specialized connectors.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The connector is divided into distinct functional portions: a connecting portion for engaging the internal cavity and an engagement portion for connecting to adjacent handrail sections. This segmentation allows each portion to be optimized for its specific function while maintaining overall simplicity and universality.

Inventive Principle:

Principle #1Segmentation

2Stability of the object's composition

If connectors are designed to prevent axial and rotational movement, then the stability of the connection is improved, but the ease of operation decreases

Engineering Contradiction:

Improveconnection stability preventing axial and rotational movementVSAvoidease of assembly and disassembly

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The connector incorporates asymmetric features such as a keyway and corresponding key that prevent rotational movement while maintaining a simple insertion mechanism. The axial coupling portion has an asymmetric profile that engages with the handrail element's internal cavity, providing rotational restraint without complicating the assembly process.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The connector acts as an intermediary component with specific geometric features (keyway, key, coupling flange) that mediate between the handrail element and adjacent sections. These features provide stable mechanical interlocking while allowing for straightforward assembly through direct engagement.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12352052B2Handrail element connector and handrail assembly including the same

Publication Date: 2025.07.08 9220 6820 QUEBEC INC

AI summary

A handrail element connector for connecting together first and second handrail elements, the connector comprising: at least one connecting portion for engaging a first handrail element internal cavity defined in one of the first and second handrail elements, the connecting portion including: at least one connector axial coupling portion couplable to a corresponding handrail element axial coupling portion located in the first handrail element internal cavity to prevent axial movement of the connector relative to the handrail element; and at least one connector angular coupling portion couplable to a corresponding handrail element angular coupling portion located in the first handrail element internal cavity to prevent rotation of the connector relative to the handrail element.