Movable Belt Guide for Roller Shutter Adaptation

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Solution Overview

Problem

Existing belt guides for roller shutter boxes are difficult to attach or replace without dismantling the roller shutter inlet winder or belt, and they cannot be easily adapted to varying hole spacings or conditions, limiting flexibility and ease of installation.

Innovation Solution

A belt guide with a U-shaped base support and a movable holding piece that allows for attachment without dismantling, featuring a slot and fastening bores covered by a plate, enabling easy adaptation to different hole spacings and allowing for new fastening holes to be inserted, along with a deflection roller for improved belt guidance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the belt guide is fixed immovably to the roller shutter box, then the attachment is secure and stable, but the belt guide cannot be easily replaced or adapted to different hole spacings

Engineering Contradiction:
Improveadaptability to different hole spacingsVSAvoidfixed attachment stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent implements a movable holding piece that can be positioned at different locations along the base support, allowing the belt guide to adapt to various hole spacings and wall conditions. This dynamic positioning capability enables easy replacement and adaptation while maintaining secure attachment through the movable yet stable fastening mechanism.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the belt guide is designed for permanent fixed attachment, then structural stability is ensured, but replacement and exchange require dismantling the roller shutter inlet winder and belt

Engineering Contradiction:
Improveease of replacementVSAvoiddismantling complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent divides the belt guide into separable components: a base support and a movable holding piece. This segmentation allows the holding piece to be independently removed and repositioned without dismantling the entire roller shutter inlet winder or belt assembly, significantly simplifying replacement and exchange operations.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If the belt guide uses a fixed position design, then manufacturing and assembly are simple, but adaptation to existing hole spacing or damaged holes is not possible

Engineering Contradiction:
Improveadaptation to existing conditionsVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The movable holding piece design enables the belt guide to adapt to various existing hole spacings and wall conditions without requiring custom manufacturing for each scenario. The standardised base support combined with the repositionable holding piece provides manufacturing simplicity while delivering high adaptability to different installation conditions.

Inventive Principle:
Principle #15Dynamics

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 easy exchange and adaptation of belt guides, ensuring secure attachment and protection during renovation, with improved belt guidance that prevents the belt from being torn during roller shutter operation, facilitating installation without disassembling existing components.

Implementation Method 1

a deflection roller for the webbing is mounted between the two lateral legs of the base support

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP1961911B1Belt guide for a belt or similar traction device of a darkening device, in particular of a roller blind, for fastening to roller shutter housing
Publication Date: 2015.07.29 ALFRED SCHELLENBERG
  • EP1961911B1 patent drawingFigure 1~3
  • EP1961911B1 patent drawingFigure 4~7

AI summary

The guide (1), for a roller shutter belt, is essentially a U-shaped base carrier (3) with a deflection roller (6) for the belt between its side legs (4,5). A belt entry opening (8) is in the web (7) connecting the carrier legs and a drilling (9) for fastening is under the roller. A slit (11) in the web extends from its upper edge (10) to the belt entry opening to take a sliding holder (13) with a drilling (13) for fastening. A guide pin (19) is at the bottom of the carrier, with a further web (21) forming the belt exit opening (22).