Baluster Bracket Assembly with Collar and Shoe

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Solution Overview

Problem

Conventional methods for attaching balusters to railing systems require drilling large holes, using adhesives, and can be aesthetically unpleasing, while also being labor-intensive and costly for installation, repair, and replacement.

Innovation Solution

A baluster bracket assembly featuring a mounting plate with a collar that securely receives the baluster, eliminating the need for large holes and adhesives, and including a shoe and clip for additional retention, allowing for easy adjustment and secure attachment without compromising the appearance of the railing system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional drilling and adhesive methods are used to attach balusters, then secure attachment is achieved, but the railing system appearance is compromised and installation is labor-intensive

Engineering Contradiction:

Improveattachment securityVSAvoidinstallation complexity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The attachment system is divided into separate components: a mounting bracket that attaches to the rail, and a collar that receives the baluster. This segmentation allows each component to be optimized independently and simplifies installation by eliminating the need for drilling large holes and using adhesives.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mounting bracket and collar serve as intermediary components between the rail and baluster, providing a secure mechanical connection without requiring direct attachment to the rail through large holes. This intermediary structure maintains appearance while ensuring structural integrity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If large holes are drilled for baluster installation, then secure attachment is achieved, but the aesthetic appearance of the railing system is diminished

Engineering Contradiction:

Improveattachment securityVSAvoidrailing appearance

Core Design Contradiction:

ReliabilityVSShape

Solution Approach 1:

The harmful drilling operation is extracted from the installation process. Instead of drilling large holes through the rail, the mounting bracket attaches to the rail surface and the collar receives the baluster, eliminating the need for large visible holes while maintaining secure attachment.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The collar acts as a protective shell that encloses the baluster insertion point, hiding the attachment mechanism from view and preserving the aesthetic appearance of the railing system while providing secure mechanical retention.

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If balusters are installed using traditional methods with adhesives, then attachment is achieved, but the process is messy and time-consuming

Engineering Contradiction:

Improveattachment securityVSAvoidinstallation speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

Chemical adhesive bonding is replaced with a purely mechanical attachment system using the mounting bracket and collar. This substitution eliminates the need for messy adhesive application and the lengthy 24-hour drying wait time, allowing for immediate installation and adjustment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The mounting bracket is pre-attached to the rail before baluster installation, and the collar is designed to receive the baluster in a pre-positioned state. This preliminary preparation eliminates the need for time-consuming adhesive application and drying periods during the actual baluster installation.

Inventive Principle:

Principle #10Preliminary action

4Reliability

If balusters are cut longer than necessary to fit within drilled holes, then attachment is achieved, but material is wasted and cost increases

Engineering Contradiction:

Improveattachment securityVSAvoidbaluster material waste

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The requirement for excessive baluster length is extracted from the design constraints. The collar-based attachment system allows balusters to be cut to precise lengths without needing additional length for insertion into deep drilled holes, reducing material waste.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The attachment geometry is changed from deep cylindrical holes requiring long balusters to a collar-based system that accepts standard baluster lengths. This parameter change in the attachment method allows for more efficient material utilization.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS8936233B1Baluster bracket assembly

Publication Date: 2015.01.20 SNEITH JAYME M

AI summary

A baluster bracket assembly including a pair of mounting brackets attached to facing surfaces of a handrail and a baserail for retaining a baluster in railing construction. Each mounting bracket includes a mounting plate fastened to the railing surface and a collar for receiving an end of the baluster. A shoe is provided with each mounting bracket for attachment to the end of the baluster and for covering the mounting bracket after installation.