Segmented Training Ladder with Play Joints
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Solution Overview
Problem
Existing training ladders face issues with maintenance, portability, and ease of setup due to their lightweight and flexible structure, which can cause them to twist and bend, making them difficult to set up and store, and they lack size variability for users of different heights.
Innovation Solution
A training ladder design featuring parallel chains and bars with a hollow structure, allowing for adjustable joint directions and loose connections to prevent twisting, along with a cylindrical shape and marking of end bars for easy identification, enables easy setup and removal and accommodates different user sizes with square cells of varying dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the training ladder is made lightweight and flexible using soft resin or synthetic rubber, then portability and ease of maintenance are improved, but the ladder becomes prone to twisting and bending when stored or placed on uneven ground
Solution Approach 1:
The training ladder is divided into multiple separate link members that can be connected and disconnected. Each link member is a separate component that can be individually handled, stored, and assembled, preventing the entire structure from twisting as a single flexible unit while maintaining lightness and portability.
Solution Approach 2:
The link members are designed to nest within each other when not in use, with smaller members stored inside larger ones. This nesting arrangement prevents twisting and bending during storage while keeping the overall structure compact and portable, resolving the contradiction between flexibility and structural stability.
2Object-affected harmful factors
If the training ladder is made flexible with soft materials, then user safety is improved by reducing injury risk, but the ladder becomes difficult to set up and remove due to twisting and bending
Solution Approach 1:
By segmenting the ladder into rigid or semi-rigid link members connected by joints, the structure maintains flexibility for safety while allowing controlled assembly and disassembly. The segmented design prevents uncontrolled twisting that makes setup difficult, as each segment can be positioned independently.
Solution Approach 2:
The connection joints between link members are designed to be dynamic, allowing easy attachment and detachment while maintaining structural integrity during use. This dynamic connection system enables quick setup and removal without the difficulty of adjusting twisted flexible materials, while still providing safety through controlled flexibility.
3Ease of manufacture
If the training ladder uses a fixed size design based on adult dimensions, then it is simple to manufacture, but it cannot accommodate users of different heights including children
Solution Approach 1:
The ladder is constructed from multiple standardized link members that can be connected in different quantities and configurations. This segmentation allows the same basic components to be assembled into ladders of various sizes, accommodating different user heights from children to adults while maintaining manufacturing simplicity through standardized parts.
Solution Approach 2:
The link members are designed as universal components that can serve multiple functions and be configured for different user sizes. The same basic link member design can be used across different ladder configurations, providing size adaptability without requiring entirely different manufacturing processes for different user groups.
Data Source
Figure 1
Figure 2(a)~2(b)
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AI summary
[Problem to be Solved] An object is to provide a training ladder that is capable of being easily set and removed, and that has a small cell of a square corresponding to a user's height. [Solution] The problem is solved by a ladder-shaped training ladder including: a plurality of bars (2); and chains (3) provided at both ends of the bars, the training ladder being provided at each of joint portions of the bars and the chains with a play for resolving a change of a joint direction of the bar and the chain.