Quick-fitting stool
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Solution Overview
Problem
Conventional stools face safety risks due to sharp corners, require costly processing for aesthetics, and lack stability when in use, as they often have exposed side plates and lack rollers for support.
Innovation Solution
The quick-fitting stool incorporates vertical strip-shaped corner protectors to shield side plates, simplify assembly, and feature elastic members that compress to stabilize the stool by retracting rollers into a storage cavity for safety and ease of movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If side plates are joined directly to form a stool, then assembly is simple, but sharp corners appear causing safety risks and ugly appearance
Solution Approach 1:
Corner protectors are introduced as intermediary components between side plates. These protectors cover the sharp corners formed by direct joining of side plates, eliminating safety risks while maintaining assembly simplicity. The corner protectors act as mediators that resolve the conflict between simple assembly and safety aesthetics.
2Ease of manufacture
If side plates are joined directly, then assembly is simple, but exposed side plates require additional processing increasing cost and complexity
Solution Approach 1:
Corner protectors serve as intermediary components that cover exposed side plate edges. This eliminates the need for additional processing of exposed surfaces, as the protectors provide the finished appearance. The solution maintains simple assembly while avoiding complex post-processing operations.
3Productivity
If quick-fitting parts are installed on outer surface of side plates, then disassembly and installation is quick, but appearance becomes ugly
Solution Approach 1:
Corner protectors with integrated mounting surfaces serve as intermediaries that provide quick-fitting capabilities without exposing mounting hardware on the outer surface. The connection structures are installed on the inner surfaces or edges of the corner protectors, maintaining aesthetic appearance while enabling quick disassembly and installation.
4Ease of operation
If rollers are added to bottom of stool, then movement is enabled, but stool becomes unstable when loaded
Solution Approach 1:
The stool implements a dynamic roller mechanism where rollers can extend for movement and retract for stability. When loaded, elastic members compress to retract rollers into storage cavities, allowing the stool to transition from mobile to stable state. This dynamic adjustment resolves the contradiction between mobility and stability.
Solution Approach 2:
Rollers are nested within storage cavities formed by side plates when not in use. The telescoping assemblies allow rollers to extend from and retract into these cavities. When loaded, rollers are received in the storage cavities, providing stability while maintaining mobility capability when empty.
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 provides a safe, aesthetically pleasing, and stable quick-fitting stool with improved assembly efficiency and storage functionality, preventing slipping and falling by shielding sharp corners and ensuring stable ground contact.
Implementation Method 1
when the quick-fitting stool with the storage function is loaded (e.g., a person is sitting on it), elastic members are compressed to allow rollers to be received in a storage cavity close to a bottom plate
Data Source
AI summary
A quick-fitting stool includes a main plate, side plates, and corner protectors having same number as number of the side plates. Each of the side plates and the corner protectors are alternately arranged to form a circumferentially closed side wall. The corner protectors extend in a height direction, and the corner protectors includes first mounting surfaces and second mounting surfaces spliced to two adjacent side plates respectively. The first mounting surfaces and the second mounting surfaces are detachably connected to the two adjacent side plates. An outer side surface of the corner protectors is flush with an outer side surface of the side plates. The main plate is horizontally placed on upper side surfaces of the side plates. The side plates support the main plate, and is connected with an upper side edge of at least one of the side plates.