Hinged Tennis Practice Apparatus with Pliable Fabric
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Solution Overview
Problem
Existing tennis practice systems are overly complex and costly to install, making them impractical for widespread use.
Innovation Solution
A compact, economical tennis practice apparatus featuring a main support member mounted to a wall, a hinged outer support member, and a pliable fabric sheet that allows for open and closed positions, with a ball stopper and protruding bump to redirect tennis balls back to the player, providing a simple and affordable solution for practicing tennis strokes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If existing tennis practice systems are used, then tennis practice function is provided, but the system becomes overly complex and costly to install
Solution Approach 1:
The tennis practice apparatus is divided into separate functional components: a main support member mounted to the wall, a hinged outer support member, and a pliable fabric sheet. This segmentation allows each component to be simple and inexpensive while collectively providing the full tennis practice function, directly resolving the contradiction between functionality and complexity/cost.
Solution Approach 2:
The outer support member is designed to be hinged rather than fixed, allowing it to move between a closed position (engaged against the main support member) and an open position (substantially orthogonal to the main support member). This dynamic design simplifies the overall structure compared to fixed systems while maintaining the necessary practice surface, reducing both complexity and installation cost.
2Ease of manufacture
If a compact tennis practice apparatus is designed, then installation simplicity and cost are improved, but the practice surface area may be reduced
Solution Approach 1:
The pliable fabric sheet serves as the practice surface, extending between the top end of the main support member and the outer support member. This flexible film approach provides sufficient practice area when the apparatus is in the open position while maintaining a compact form factor when closed, resolving the contradiction between compactness and surface area.
Solution Approach 2:
The apparatus utilizes the vertical dimension by mounting to an upright wall and extending the fabric sheet vertically between support members. This vertical arrangement provides adequate practice surface area in a compact horizontal footprint, allowing the system to be both compact and functionally sufficient.
3Area of stationary object
If the outer support member is hinged to an orthogonal position, then the practice surface is maximized, but the structure becomes more complex
Solution Approach 1:
The hinged structure is segmented into discrete components (main support member, outer support member, and fabric sheet) connected by simple hinges. This segmentation allows the orthogonal configuration to be achieved through basic mechanical connections rather than complex integrated structures, maintaining simplicity while maximizing practice surface area.
Data Source
AI summary
A tennis practice apparatus that includes a main support member that is for mounting from an upright wall; an outer support member that is hinged with the main support member and includes a closed position wherein the outer support member is engaged against the main support member, and an open position wherein the outer support member is hinged to an open position that is substantially orthogonal to the main support member; and a pliable fabric sheet that extends between a top end of the main support member and the outer support member. The pliable fabric sheet defines a surface against which a user can hit tennis balls and retrieve tennis balls therefrom.