Casing Hook with Inclined Portion for Detachment
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Solution Overview
Problem
Existing solutions for detaching a cover from a case using a flexible hook often result in breakage due to unclear operating ranges and lack of deformation restriction, leading to increased costs and safety concerns.
Innovation Solution
A casing design featuring a hook with an inclined insertion portion and a receiving portion, along with a restraint rib, which restricts the deformation range of the hook during detachment, preventing breakage and facilitating clear operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a flexible hook is used to fix the cover instead of screws and nuts, then cost is reduced, but the hook is likely to be excessively deformed and broken during detachment
Solution Approach 1:
The patent changes the geometric parameters of the hook by providing a curved portion with a specific radius of curvature. This parameter modification allows the hook to flexibly deform during detachment while maintaining structural integrity, preventing breakage while keeping the cost-effective flexible hook design
Solution Approach 2:
The curved portion of the hook acts as a pre-designed cushioning structure that absorbs deformation energy during the detachment process. This beforehand cushioning prevents excessive stress concentration that would otherwise cause the hook to break, while maintaining the simple and cost-effective design
2Ease of operation
If no deformation restriction structure is provided for the hook, then the detachment operation is simple, but the hook is likely to be excessively deformed and broken
Solution Approach 1:
By optimizing the radius of curvature of the hooked portion, the patent creates a natural deformation path that guides the detachment process. This parameter change provides implicit deformation restriction without adding complex operational steps, maintaining ease of operation while preventing excessive deformation
Solution Approach 2:
The curved portion enables dynamic deformation of the hook during detachment, allowing it to flexibly adapt to the detachment force while the curvature constraints prevent uncontrolled excessive deformation. This dynamic behavior maintains operational simplicity while ensuring hook durability
3Device complexity
If the operating range of the tool is not clearly defined, then the design is simple, but the cover is unlikely to be easy to detach
Solution Approach 1:
The specific radius of curvature of the hooked portion defines a natural operating range for the detachment tool. This parameter change provides clear tactile feedback and operational guidance without requiring complex design elements, maintaining design simplicity while improving detachment ease
Solution Approach 2:
The curved geometry of the hooked portion with a specific radius of curvature provides a naturally defined operating envelope for the detachment tool. This curvature guides the tool's insertion and manipulation, making the operating range intuitively clear while keeping the design simple
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 solution effectively prevents hook breakage by restricting the deformation range and providing a clear operation range, reducing costs and enhancing safety during attachment and detachment processes.
Implementation Method 1
the insertion portion includes an inclined portion that is formed to be inclined and that constitutes part of the cylindrical shape; and a receiving portion that is a portion protruding toward an interior of the cylindrical shape from the inclined portion and that is a portion on which the hook is caught
Data Source
AI summary
A case includes a hook caught on part of a cover. The cover includes an insertion portion of a cylindrical shape into which a rod to detach the caught hook is inserted. The insertion portion includes an inclined portion and a receiving portion on which the hook is caught. When the rod is inserted into the insertion portion, the tip end of the rod is put into a gap between the inclined portion and the hook, and the rod is inclined toward the inclined portion, then the hook is detached from the receiving portion.