Pergola Louver Cover Slat Assemblies for Weather Protection

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Solution Overview

Problem

Existing solutions for providing a closable cover for outdoor structures like pergolas are not suitable for free-standing structures, and retractable awnings are not effective for these applications, lacking a cost-effective and easy-to-operate solution for sun and rain protection.

Innovation Solution

A rotatable louver cover system with pivotal elongated slat assemblies that can be manually or mechanically operated, featuring S-shaped or J-shaped slat members mounted on pivotal shafts between upright supports and cross beams, allowing for easy opening and closing, and incorporating a mechanism for synchronized pivoting and drainage to manage rainwater.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If retractable awnings are used to provide closable coverings, then sun and rain protection is achieved, but they are not suitable for free-standing structures like pergolas

Engineering Contradiction:
Improvesuitability for free-standing structuresVSAvoidcost-effectiveness
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The covering system is divided into multiple independent slat assemblies that can be individually installed between the cross beams of free-standing structures. Each slat assembly operates independently, allowing the system to adapt to various pergola configurations while maintaining cost-effectiveness through modular construction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The slat assembly design provides multiple functions: sun protection, rain protection, and adaptability to free-standing structures. The universal mounting mechanism allows the same assembly to be installed on different pergola configurations, eliminating the need for structure-specific solutions.

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

2Object-affected harmful factors

If conventional pergolas remain uncovered to maintain simplicity, then ease of manufacture is improved, but protection against sun and rain is lost

Engineering Contradiction:
Improveprotection against sun and rainVSAvoidstructural complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The slat assemblies are designed to be movable between open and closed positions, providing dynamic protection against sun and rain. This dynamic capability allows the structure to transition from a simple open pergola to a protected environment without requiring permanent enclosing walls or roofs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The slat assemblies can be manually operated to open and close, providing self-service protection without requiring complex automated mechanisms. The simple manual operation maintains structural simplicity while delivering effective weather protection.

Inventive Principle:
Principle #25Self-service

3Object-affected harmful factors

If a closable cover is provided to protect against weather, then protection effectiveness is improved, but ease of operation deteriorates due to complex mechanisms

Engineering Contradiction:
Improveprotection against weather conditionsVSAvoidease of opening and closing
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The slat assemblies are designed with pivotal movement capability, allowing them to rotate between horizontal (closed) and vertical (open) positions. This dynamic design enables easy manual operation while maintaining effective weather protection when closed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The operational state of the slat assemblies is changed by rotating them between different angular positions. This parameter change from horizontal to vertical orientation provides effective weather protection when closed and complete openness when vertical, with simple manual rotation enabling easy operation.

Inventive Principle:
Principle #35Parameter changes

4Object-affected harmful factors

If solid covering is used to block sun and rain, then protection effectiveness is improved, but water drainage capability deteriorates

Engineering Contradiction:
Improveprotection against rainVSAvoidwater runoff efficiency
Core Design Contradiction:
Object-affected harmful factorsVSLoss of substance

Solution Approach 1:

The slat assemblies can be positioned at different angles to balance protection and drainage needs. When slightly angled rather than perfectly horizontal, they provide effective rain protection while allowing water to drain through, solving the contradiction between solid coverage and water runoff.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3234273B1Pergola cover
Publication Date: 2020.05.06 IVIC MICHAEL
  • EP3234273B1 patent drawingFigure 1
  • EP3234273B1 patent drawingFigure 2
  • EP3234273B1 patent drawingFigure 3

AI summary

A louver cover for a pergola, arbor and the like has pivotal elongated slat assemblies that move between an open upright position and a closed position covering the pergola. The cover is secured between upright supports and cross beams of the pergola. Each slat assembly has a pivotal shaft mounted for pivotal movement between parallel cross beams. The pivotal shaft carries at least one slat member, which is movable between an upright position when the cover is open and a closed position when the slat assemblies extend in covering relationship over the pergola. In one embodiment, each slat assembly has a slat member with S-shaped profile, and in another embodiment the slat assembly has two mirror image slat members of J-shaped profile.