Zip Tail Stop Alignment Mechanism for Universal Usability
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Solution Overview
Problem
Zips are difficult for individuals with visual impairments, dexterity issues, or neurological conditions to open and close, and are challenging for young children and those wearing gloves, due to alignment requirements and lack of universal usability.
Innovation Solution
A tail stop arrangement for zips, comprising a first tail stop with a channel and a second tail stop with a protrusion, allowing for alignment and engagement in multiple directions, facilitating easier insertion of the male and female parts, even with imperfect alignment, and enhancing usability for all users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional zips require precise alignment of male and female parts, then the zipping function is achieved, but the ease of operation deteriorates for users with visual impairments, dexterity issues, or neurological conditions
Solution Approach 1:
A guide member with a guide channel is introduced as an intermediary element between the first tail stop and second tail stop. The guide channel receives and guides the protrusion, providing a mechanical pathway that automatically aligns the male and female parts during the zipping process, eliminating the need for manual alignment by the user.
Solution Approach 2:
The guide channel extends in a direction substantially perpendicular to the sliding direction of the slider, creating a third dimension for alignment. This vertical guide structure allows the protrusion to be guided into place from a different spatial dimension, making alignment automatic rather than requiring precise manual positioning.
2Reliability
If zips require precise alignment of insertion pin and box, then proper engagement is achieved, but the device complexity increases due to additional alignment mechanisms
Solution Approach 1:
The guide member is integrated with either the first tail stop or second tail stop, merging the alignment function into an existing structural element. This combination approach ensures reliable engagement through the guide channel while avoiding the need for separate, complex alignment mechanisms.
3Adaptability or versatility
If traditional zips are designed for standard use, then the manufacturing simplicity is maintained, but the adaptability deteriorates for universal use by children, elderly, and disabled individuals
Solution Approach 1:
The guide channel and protrusion mechanism provides a universal solution that benefits all user groups including children, elderly individuals, and those with disabilities. The automatic alignment feature makes the zip accessible to users with limited dexterity or visual impairments, while the integration with existing tail stops maintains manufacturing simplicity.
Data Source
AI summary
A tail stop arrangement (200) for a zip (100) is provided. The tail stop arrangement (200) comprises a first tail stop (300) for attachment to a first zip tape (102), the first tail stop (300) comprising a body (302) comprising a channel (304) and a second tail stop (400) for attachment to a second zip tape (104), the second tail stop (400) comprising a protrusion (406). The body (302) of the first tail stop (300) has a longitudinal axis and the channel (304) extends parallel to the longitudinal axis. A coordinate system of the tail stop arrangement (300) comprises a y-direction parallel to the longitudinal axis, an x-direction perpendicular to the longitudinal axis along which the channel (304) is open and a z-direction perpendicular to the longitudinal axis along which the channel (304) is closed. The protrusion (406) is configured to be inserted into the channel (304) in the x-direction to engage the first and second tail stops (300, 400). The protrusion (406) is configured to slide within the channel (304) in the y-direction when the first and second tail stops (300, 400) are engaged, wherein the protrusion (406) is configured to slide in the channel (304) towards an end position. When the protrusion (406) is in the end position the first and second tail stops (300, 400) are aligned by the engagement of the protrusion (406) with the channel (304) in the x-, y- and z-directions to enable the zip (100) to be fastened.