Diaper Fastener Single-Fingerlift Breakable Connection
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Solution Overview
Problem
Conventional diaper fasteners with two-fingerlift designs can cause user confusion, leading to accidental detachment of the target section from the diaper when attempting to open or reopen the fastener, making further use impractical.
Innovation Solution
A single-fingerlift design is achieved through a breakable connection between the fastening and target sections, allowing the fastener to be converted from installed to closed, opened, re-closed, and reopened conditions without user confusion, where the same fingerlift is gripped throughout, utilizing a designed weakness like a perforated line for controlled disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a two-fingerlift design is used in conventional diaper fasteners, then the fastener can be closed and opened, but user confusion occurs leading to accidental detachment of the target section from the diaper
Solution Approach 1:
The invention extracts the breakable connection feature from the target section, allowing the fastening section to be separated cleanly from the target section during opening. This prevents accidental detachment of the entire target section from the diaper while still enabling fastener opening, thus resolving the contradiction between ease of operation and reliability.
Solution Approach 2:
The fastener is segmented into distinct functional parts: the target section permanently attached to the diaper, the fastening section that can be opened and closed, and the breakable connection between them. This segmentation allows the fastening section to be opened without compromising the permanent attachment of the target section to the diaper.
2Ease of operation
If a single-fingerlift design is implemented, then user confusion is eliminated and accessibility is improved, but a mechanism is needed to disconnect the fastening section from the target section when opened
Solution Approach 1:
The breakable connection is designed as a disposable, single-use feature that allows the fastening section to be separated from the target section. This simple, low-cost mechanism provides the necessary disconnection function without adding complex reusable components, resolving the contradiction between ease of operation and device complexity.
3Strength
If the fastening section is permanently attached to the target section, then structural integrity is maintained, but the fastener cannot be opened or reopened
Solution Approach 1:
The connection between the fastening section and target section transitions from a static permanent attachment to a dynamic state that can change. The breakable connection allows the system to transition from an attached state (maintaining structural integrity during closing) to a separated state (enabling opening and reopening), thus resolving the contradiction between strength and adaptability.
Data Source
Figure 1
Figure 2A~2C
Figure 2D~2F
AI summary
A fastener (10) comprising an attachment section (30) for permanent attachment to an anchoring area, a target section (60) for permanent attachment to a landing area, and a fastening section (40) for selective attachment and detachment from the target section (60). A breakable connection (70) initially connects the fastening section (40) and the target section (60), and this connection (70) is broken to disconnect the fastening section (40) from the target section (60) when fastener (10) is converted from a closed condition to an opened condition. A single fingerlift (80) can be gripped both when converting the fastener (10) from an installed condition to the closed condition, and when converting the fastener (10) from the closed condition to the opened condition.