Tensioning mechanism for a cot and a cot thereof
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Solution Overview
Problem
Existing leisure bed designs require a large force to tension the canvas, making it difficult for weak individuals to mount and often result in poor canvas tightness and inadequate support, especially when the distance between support rods is reduced for ease of use.
Innovation Solution
A tensioning mechanism comprising two side rods with a support component, a fixed fastener, and a movable fastener that allows for easy canvas tensioning by rotating to increase tension and clamp the second support rod, utilizing elastic limiting protrusions and operating members to facilitate low-force operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the distance between support rods is reduced for ease of mounting, then the ease of operation is improved, but the canvas tightness deteriorates causing collapse in the middle part
Solution Approach 1:
The movable fastener is designed to rotate from a first position during mounting to a second position during use. In the first position, it allows easy mounting; in the second position, it clamps the support rod to tension the canvas and prevent collapse. This dynamic transformation resolves the contradiction between ease of operation and canvas stability.
2Stability of the object's composition
If a larger force is applied to tension the canvas during mounting, then the canvas tightness is improved, but the ease of operation deteriorates making it difficult for weak individuals to mount
Solution Approach 1:
The movable fastener rotates during the tensioning process, transforming the mounting operation from requiring large continuous force to requiring small incremental force applied during rotation. The rotation mechanism allows the user to gradually tension the canvas without needing to apply excessive force at once.
Solution Approach 2:
The mounting process is divided into periodic rotational movements of the movable fastener. Instead of applying one large force, the user applies small forces during multiple rotational steps, making the operation feasible for weak individuals while still achieving adequate canvas tension.
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
Enables easy and convenient canvas tensioning with reduced operational force, maintaining better fabric tightness and support effectiveness, enhancing user experience and reducing the physical demands on the operator.
Implementation Method 1
the movable fastener is capable of rotating in a direction which increases tension on the canvas and clamping the second support rod after the canvas is stretched
Data Source
AI summary
A canvas tensioning mechanism for a cot has a support component (2) which has a first support rod (21) and a second support rod (22) respectively extending toward two sides of the canvas; a fixed fastener (3) is disposed on the top of the first support rod (21) and is capable of being buckled on one of the two side rods (1); a movable fastener (4) is rotatably disposed on the top of the second support rod (22) and is capable of being buckled on the other side rod (1). A leisure bed has a piece of canvas, two side rods and at least two canvas tensioning mechanisms. The canvas tensioning mechanism can easily tension and mount the canvas by a small force, and is convenient to tension the canvas and high in tightness.