Roman Blind Batten Guide for Fabric Insertion

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Solution Overview

Problem

The assembly of Roman blinds is slow and prone to fabric damage due to sharp edges on aluminium extrusions, which require careful handling to avoid abrasion during the insertion of fabric loops into slots.

Innovation Solution

A method and apparatus involving a slotted guide that aligns and feeds a fabric fold into the batten slot without direct contact with sharp edges, using a sleeve with a keyhole section and alignment means to secure the fabric and rod within the batten, allowing for crimping or keyhole formation around the rod for secure placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the assembly process is performed carefully to avoid fabric damage from sharp edges, then fabric damage is prevented, but assembly time increases significantly

Engineering Contradiction:

Improvefabric damage preventionVSAvoidassembly time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

A guide with a fabric slot is introduced as an intermediary device between the sharp-edged extrusion and the fabric. The guide has a leading end that contacts the fabric fold first, and a trailing end that contacts the extrusion, thereby mediating the interaction and preventing direct contact between sharp edges and fabric during assembly

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide is positioned on the leading end of the extrusion before the assembly process begins. This preliminary placement ensures that the guide's protective surface is already in position to prevent fabric damage from the outset, eliminating the need for careful manual handling during the actual assembly

Inventive Principle:

Principle #10Preliminary action

2Productivity

If the assembly process is performed quickly to increase productivity, then assembly time decreases, but fabric damage occurs due to sharp edges

Engineering Contradiction:

Improveassembly speedVSAvoidfabric abrasion

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The guide serves as a protective intermediary that allows rapid assembly without fabric damage. Its fabric slot is designed to receive and guide the fabric fold smoothly, while its trailing end interfaces with the extrusion, enabling quick insertion without careful manual manipulation

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide provides beforehand cushioning by positioning its leading end (which contacts the fabric) before the sharp-edged extrusion reaches the fabric. This advance protection allows high-speed assembly while preventing abrasion, as the harmful sharp edges are cushioned by the guide's softer material surface

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS8181323B2Roman blind batten guide

Publication Date: 2012.05.22 SPP INDS HLDG

AI summary

A guide (2) for inserting a fold of fabric into the batten of a Roman blind comprising a leading end (12) and a trailing end (4). A slot (10) runs from trailing end (12) to leading end (4). The slot (10) has a T-section which opens into a countersunk central area (14) towards the leading end (12) and into a bore (6) towards the trailing end (4). The bore (6) is adapted to receive a leading end of the batten (8) and a screw (18) projects from the sidewall into the bore (6) in order to engage the batten (8).