Roll-Up Screen Inner Guider Lateral Removal Mechanism

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Solution Overview

Problem

Conventional roll-up type screen apparatuses require complex operations to remove the screen member for maintenance, involving detachment of rail accommodating members from the frame unit and vertical displacement of rail members, which complicates the process.

Innovation Solution

A screen apparatus design featuring a rail accommodating member with elastic protrusions that hold an inner guider dismountably in the lateral direction, allowing for easy removal without detaching from the frame unit, utilizing a C-shaped outer guider with first and second extensions and protrusions that elastically deform to secure the inner guider in place.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the rail accommodating member is fixedly attached to the frame unit and the rail member is held in place, then the screen member is securely supported, but the screen member becomes difficult to remove for maintenance

Engineering Contradiction:
Improvesecure support of screen memberVSAvoidease of removal for maintenance
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The rail member transitions from a fixed state to a movable state through lateral displacement. The engagement groove and engagement protrusion allow the rail member to be easily inserted and removed laterally while maintaining secure vertical support during operation, resolving the contradiction between secure support and ease of maintenance removal

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support structure is divided into separate components: the rail accommodating member fixed to the frame, and the rail member that can be independently removed. This segmentation allows the rail member to be maintained without removing the entire screen apparatus from the frame

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If the rail member is held firmly in the rail accommodating member, then the screen member is stable, but complicated operations are required to remove the screen member

Engineering Contradiction:
Improvestability of screen memberVSAvoidcomplexity of removal operations
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The engagement mechanism allows the rail member to be easily inserted and removed through lateral displacement while maintaining secure vertical support during operation. The engagement groove and protrusion provide automatic engagement and disengagement, reducing operational complexity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rail member is extracted from the complex multi-step removal process and simplified to a single lateral displacement action. By separating the removal function from the support function, the system achieves both stability during operation and simplicity during maintenance

Inventive Principle:
Principle #2Taking out (Extraction)

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

Facilitates easy dismounting of the inner guider from the recess, simplifying maintenance by eliminating the need for complex detachment procedures and ensuring secure holding without fastening operations, thereby enhancing maintenance capability.

Implementation Method 1

first and second extensions and protrusions that elastically deform to secure the inner guider in place

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP3130742B1Screen device
Publication Date: 2022.09.28 HAYASHIGUCHI MFG
  • EP3130742B1 patent drawingFigure 1
  • EP3130742B1 patent drawingFigure 2
  • EP3130742B1 patent drawingFigure 3

AI summary

A screen apparatus X1 includes: a screen member 22; an inner guider 60 extending in a vertical direction of the screen member 22 and holding a side end 22a of the screen member 22 movably in the vertical direction of the screen member 22 while regulating a displacement of the screen member 22 in a lateral direction of the screen member 22; and an outer guider 50 extending in the vertical direction of the screen member 22 and having a recess 54 for accommodating the inner guider 60, wherein the outer guider 50 holds the inner guider 60 dismountably from the recess 54 in the lateral direction of the screen member 22.