Fabric Attachment Device Using Die Transfer to Avoid Interference

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Solution Overview

Problem

In fabric attachment processes, holding members can interfere with fabric laminations, causing attachment objects to lose their correct posture and fail to attach properly, especially when placed adjacent to fabric steps or height differences.

Innovation Solution

An attaching apparatus with a first die and holding members that transfer the attachment object to a position away from the fabric before attaching, allowing the attachment object to maintain its posture and avoid interference, using a combination of mechanical movements and pivotable arm members to ensure correct positioning and attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the holding member (arm member) is used to hold the attachment object during attachment process, then the attachment object can be positioned on the fabric, but the holding member interferes with fabric laminations causing the attachment object to lose correct posture and fail to attach properly

Engineering Contradiction:
Improveattachment reliabilityVSAvoidinterference with fabric lamination
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the harmful function of the holding member by removing it from the attachment position. The holding member is taken out from the area where it would interfere with fabric laminations, allowing the attachment object to be positioned without interference while maintaining attachment reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a die as an intermediary device to transfer the attachment object to the fabric. Instead of the holding member directly positioning the attachment object on the fabric (which causes interference), the die acts as a mediator that receives the attachment object from the holding member and places it on the fabric, eliminating the interference problem.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the attachment object is placed adjacent to fabric steps or height differences, then the attachment can be performed in complex fabric configurations, but the holding member cannot maintain the correct posture of the attachment object

Engineering Contradiction:
Improveattachment position flexibilityVSAvoidposture stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The die serves as an intermediary that stabilizes the attachment object during transfer to complex fabric configurations. The die maintains the correct posture of the attachment object while moving it to positions adjacent to fabric steps or height differences, enabling versatile attachment locations without sacrificing posture stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The holding member preliminarily positions the attachment object in the correct posture before transfer, and the die maintains this posture during the transfer process to complex fabric configurations. This preliminary positioning combined with intermediary support ensures both adaptability to complex configurations and stability of posture.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3527095B1Attachment device and method for producing a fabric product
Publication Date: 2023.11.29 YKK CORP
  • EP3527095B1 patent drawingFigure 1~2
  • EP3527095B1 patent drawingFigure 3
  • EP3527095B1 patent drawingFigure 4

AI summary

An attaching apparatus (100), which attaches an attachment object (20) to a fabric (30) using a fastening member (10), includes at least one pair of first holding members (40) configured to hold an attachment object (20); and a first die (110) configured to hold the attachment object (20) at a terminal (111) of a die main body (110k). The first die (110) moves such that the attachment object (20), held at the at least one pair of first holding members (40), is held at the terminal (111) of the die main body (110k) and then the attachment object (20) is placed onto the fabric (30). The attachment object (20) is transferred from the at least one pair of first holding members (40) to the first die (110) at a position distanced away from the fabric (30).