Rolling Door Guide Rail with Movable Infeed Funnel

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Solution Overview

Problem

Rolling doors and grilles experience noise and wear issues during operation due to vibrations and shocks, which reduce their service life.

Innovation Solution

A guide rail device with a movable infeed funnel and a damping body to decouple the funnel from the guide rail, allowing for adjustable alignment and reducing friction and noise through elastic connecting elements and low-friction sliding profiles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the infeed funnel is fixed to the guide rail, then the structure is simple and stable, but the feed angle cannot adjust to changing bale diameters causing increased wear and noise

Engineering Contradiction:

Improveadjustability of feed angleVSAvoidcomplexity of infeed funnel mounting

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The infeed funnel is made movable relative to the guide rail through a joint connection, allowing it to dynamically adjust its position and feed angle according to changing bale diameters during rolling door operation. This dynamic adjustment capability resolves the contradiction by enabling adaptability without requiring a completely complex adjustable mechanism.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

A joint is introduced as an intermediary element between the infeed funnel and the guide rail. This joint serves as a mediator that allows relative movement while maintaining connection, enabling the funnel to adjust to different feed angles without direct rigid attachment, thus solving the adaptability-complexity contradiction.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the infeed funnel is rigidly connected to the guide rail, then the connection is stable, but vibrations and shocks increase noise and wear

Engineering Contradiction:

Improvestability of connectionVSAvoidnoise from vibrations and shocks

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The joint acts as an intermediary that decouples the rigid connection between the infeed funnel and guide rail. It maintains the functional connection while allowing relative movement, thereby reducing the transmission of vibrations and shocks that cause noise and wear, without completely compromising connection stability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The joint connection is designed to accommodate and cushion the vibrations and shocks that occur during operation. By allowing controlled relative movement, the joint provides a cushioning effect that reduces the impact of harmful vibrations before they can transmit to the guide rail and generate noise.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Ease of manufacture

If a fixed feed angle is used, then the structure is simple, but wear on armor and funnel increases due to varying bale diameters

Engineering Contradiction:

Improvesimplicity of structureVSAvoidservice life of components

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

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

The solution reduces wear on components and noise production by allowing the infeed funnel to adjust to changing angles and absorb vibrations, thereby extending the service life of rolling doors and grilles.

Implementation Method 1

a damping body connected to the infeed funnel to dampen vibrations and shocks of the infeed funnel

Methodology Applied

Scientific EffectVibration damping: Damping

Implementation Method 2

the damping body is designed as an elastic connecting element connecting the guide rail and the infeed funnel to each other

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS11788347B2Guide rail device for a rolling door or rolling grille

Publication Date: 2023.10.17 HORMANN DISSEN

AI summary

A guide rail device for laterally guiding a rolling door or rolling grille armor of a rolling door or rolling grille includes a guide rail for vertically guiding the rolling door or rolling grille armor, an infeed funnel for guiding the rolling door or rolling grille armor into an entry area of the guide rail, with the infeed funnel being movable relative to the guide rail, and a damping body connected to the infeed funnel which dampens vibrations and shocks of the infeed funnel. Further, a rolling door or rolling grille includes a first guide rail device and a second guide rail device. In particular, the guide rail of the first guide rail device is fixed laterally on the building opening, and the guide rail of the second guide rail device is fixed laterally on the opposite side of the building opening.