Compact Locking Slider With Press-Release Lever Mechanism
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Solution Overview
Problem
Existing slide fasteners face challenges in releasing the locked state of the lock pin portion when using a short tab pull, particularly in applications where interference from the tab pull is undesirable, such as attaching a hood to a garment.
Innovation Solution
A slider design with a claw member and an operation piece having separate first and second shaft portions, allowing the operation piece to rotate and lift the claw member through the second shaft portion to release the locked state using leverage, eliminating the need for a tab pull and reducing the overall volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a short tab pull is used to reduce interference and overall volume, then the slider size is reduced and interference is minimized, but the ability to release the locked state of the lock pin portion becomes challenging
Solution Approach 1:
The operation piece is designed to rotate around the first shaft portion, transforming from a static component to a dynamic one. This rotation enables the second shaft portion to lift the claw member and release the lock pin, providing an effective release mechanism despite the shortened tab pull length
Solution Approach 2:
The operation piece acts as an intermediary mechanism between the user's pressing action and the lock pin release. By introducing the rotation around the first shaft portion, it mediates the force transmission to effectively lift the claw member and release the lock, solving the problem of insufficient leverage in short tab pull designs
2Volume of moving object
If the tab pull length is reduced to prevent interference, then the slider is more compact and suitable for applications like hoods, but the operation complexity increases for releasing the lock
Solution Approach 1:
The operation piece is segmented into two distinct shaft portions: the first shaft portion for rotation and the second shaft portion for lifting the claw member. This segmentation allows the mechanism to achieve complex functionality (rotation + lifting) within a compact structure, reducing overall complexity despite the shortened tab pull
3Reliability
If a traditional lock pin mechanism is used, then the locked state is secure, but the release mechanism requires a long tab pull that causes interference
Solution Approach 1:
The release mechanism transitions from linear pulling motion to rotational motion around the first shaft portion. This dimensional change allows the second shaft portion to achieve sufficient lifting distance to release the lock pin, maintaining reliability while reducing the tab pull length to prevent interference
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
The slider operates simply by gentle pressing, releases the locked state effectively, and reduces overall volume, minimizing interference and size, suitable for applications like hoods on clothes.
Implementation Method 1
the operation piece has a first shaft portion and a second shaft portion which are separately positioned, the operation piece is rotatably positioned on the slider body through the first shaft portion and is connected to the claw member through the second shaft portion, and when the operation piece is pressed to enable one side of the operation piece to rotate toward the slider body with the first shaft portion as an axis center, the operation piece lifts the claw member through the second shaft portion to release the locked state
Data Source
AI summary
A slider operable in a simple operation manner and capable of reducing an overall volume is provided. The slider includes: a slider body; a claw member positioned on the slider body and having a lock pin portion extending to an interior of the slider body to establish a locked state; an operation piece positioned on the slider body and connected to the claw member. The operation piece has first and second shaft portions that are separately positioned. The operation piece is rotatably positioned on the slider through the first shaft portion and connected to the claw member through the second shaft portion. Upon pressing the operation piece and enabling one side of the operation piece to rotate toward the slider with the first shaft portion as an axis center, the second shaft portion lifts the claw member to release the locked state in the interior of the slider body.