Play Apparatus Lid Securing Mechanism
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Solution Overview
Problem
Existing tetherball game bases often require complex and cumbersome securing mechanisms that are prone to accidental opening during play, leading to potential loss of the ball and increased manufacturing costs and complexity.
Innovation Solution
A base design featuring a snap-fit securing mechanism with integrally formed parts that engage directly with each other, requiring a lower force to secure the lid than to remove it, and utilizing a resilient bias for stability, without additional moving parts like lever clips or latches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex securing mechanisms like tongue and groove formations with locking devices are used, then the lid can be secured firmly, but the device complexity and manufacturing cost increase
Solution Approach 1:
The securing mechanism is divided into two integral parts: a first part formed with the container and a second part formed with the lid. These segmented parts engage directly with each other through complementary geometric features, eliminating the need for complex multi-component securing systems while maintaining reliable lid attachment.
Solution Approach 2:
The securing mechanism merges the container and lid into an integrated assembly where the first part and second part are permanently formed as single pieces with their respective components. This merging eliminates separate locking devices and complex attachment mechanisms, reducing overall device complexity while ensuring firm securing through direct engagement of the integral parts.
2Reliability
If additional securing parts like lever clips or latches are used, then the lid can be secured firmly, but the manufacturing cost increases
Solution Approach 1:
The securing function is segmented into the geometric features of the two integral parts themselves, rather than requiring additional separate components. The first part and second part contain all necessary securing features within their integral structures, eliminating the need for expensive additional parts like lever clips or latches.
Solution Approach 2:
The integral parts are designed to be self-securing through their inherent geometric features. The first part and second part automatically engage and secure each other when assembled, without requiring additional active securing components. This self-service mechanism reduces manufacturing costs by eliminating the need for extra parts and assembly steps.
3Reliability
If complex securing mechanisms with multiple parts are used, then the lid can be secured firmly, but the number of parts and assembly complexity increase
Solution Approach 1:
The container and lid are merged into an integrated two-part system where the first part and second part are permanently formed as single pieces. This merging reduces the total number of parts by eliminating separate locking mechanisms, hinges, and fasteners, while the direct engagement features of the integral parts ensure reliable securing with minimal components.
Data Source
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AI summary
A base for a play apparatus comprising: a container defining an internal volume and an opening providing access to the internal volume; a removable lid configured to cover the opening; and a securing means operable to secure the lid in place over the opening; wherein the securing means comprises a first part and a second part, the first part being fixedly attached to or integrally formed with the container and the second part being fixedly attached to or integrally formed with the lid, the first part and the second part being configured to engage directly with each other to secure the lid in place, in use, when the lid is placed over the opening.