Snap-Engaging Retractable Handle to Prevent Collision and Loosening
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Solution Overview
Problem
Conventional handles on objects, such as computer cases and doors, are immovably attached and prone to interference and collisions when not in use, and screws often loosen over time, leading to separation.
Innovation Solution
A handle with an engaging portion that can be mounted and dismounted from an object, utilizing snap-engaging mechanisms and resilient components to secure and retract, preventing collisions and ensuring easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the handle is immovably attached to the object with screws, then the handle is securely fixed, but the handle interferes with the object when lying near a wall and screws may loosen over time
Solution Approach 1:
The handle is designed with a resilient component that enables it to dynamically change position between protruding (for use) and retracted (for storage) states. This dynamic capability resolves the contradiction by allowing the handle to be securely attached when needed while eliminating interference when retracted.
Solution Approach 2:
The handle attachment mechanism is segmented into multiple functional components: a body portion, a resilient component, and an engaging portion with blocking and abutting features. This segmentation allows independent optimization of each component to achieve both secure attachment and retraction capability.
2Ease of operation
If the handle protrudes immovably from the object, then the handle is easily accessible, but the handle is susceptible to collisions when not in use
Solution Approach 1:
The resilient component enables the handle to dynamically adjust its position, protruding for accessibility during use and retracting to avoid collisions when not in use. This dynamic behavior simultaneously satisfies both ease of operation and collision prevention requirements.
Solution Approach 2:
The handle design incorporates preliminary anti-action by providing a retracted position where the handle proactively avoids potential collision zones near walls or other objects, preventing harmful effects before they can occur.
3Reliability
If screws are used to fasten the handle, then the handle is securely attached, but the screws are likely to loosen and detach after long use
Solution Approach 1:
The invention replaces the traditional screw-based mechanical fastening system with a snap-engagement mechanism featuring blocking and abutting components. This substitution eliminates screws entirely, resolving the loosening and detachment problems associated with threaded fasteners while maintaining secure attachment through geometric interlocking and resilient force.
Solution Approach 2:
The resilient component provides self-service by automatically maintaining engagement force and preventing detachment without requiring additional fasteners or adjustment mechanisms. The blocking and abutting features create a self-locking effect that prevents loosening over time.
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 handle provides easy operation and prevents collisions by allowing secure mounting and dismounting, maintaining stability and reducing the risk of detachment.
Implementation Method 1
The handle further comprises a resilient component. The two ends of the abutting component abut against the body portion and the blocking portion, respectively, to place the neck portions normally at a retracted position
Data Source
AI summary
A handle with an engaging portion is introduced. The handle includes a body portion and a second engaging portion. The second engaging portion is disposed at one end of the body portion. The second engaging portion has a neck portion adapted to be inserted into, fitted to or snap-engaged with an object. Thus, the handle is mounted on the object in order to be in use and dismounted from the object when not in use. Therefore, the handle is not only easy to operate and use but is also not susceptible to collisions.