Carrycot Tightening Mechanism with Adjustable U-Shape Lock
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Solution Overview
Problem
Existing carrycot designs face challenges in adjusting the tightening of the fabric during production, assembly, and use, which complicates folding, unfolding, and storage, requiring significant force and inefficient mechanisms.
Innovation Solution
A carrycot tightening adjustment mechanism featuring two hinged elements with safety teeth and recesses, allowing adjustable depth insertion of a U-shaped element, facilitated by a lock system for precise tension control, enabling easy assembly and use with reduced force requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional tightening mechanism is used in carrycots, then the structure is simple, but the adjustment of tightening depth is limited and requires significant force for folding and unfolding
Solution Approach 1:
The patent implements a dynamic tightening adjustment mechanism where the depth of insertion of the U-shaped element into the longitudinal hollow can be varied. This allows the carrycot to be easily folded and unfolded by adjusting the tightening depth, reducing the force required during operation while maintaining structural integrity when needed.
Solution Approach 2:
The patent changes the parameter of tightening depth by allowing the U-shaped element to be inserted to different depths into the longitudinal hollow. This parameter adjustment enables the user to optimize between ease of folding/unfolding and structural stability, directly addressing the contradiction between operational ease and force requirements.
2Adaptability or versatility
If a fixed tightening mechanism is used, then the structure is stable, but the adjustability of tightening depth is poor
Solution Approach 1:
The mechanism transitions from a fixed tightening structure to a dynamic one where the U-shaped element can be positioned at various depths within the longitudinal hollow. This dynamic adjustment capability provides adaptability for different tightening requirements while the interlocking features (protruding component and recess) maintain structural stability when locked in position.
Solution Approach 2:
The tightening mechanism is segmented into adjustable components: the U-shaped element that can be positioned at different depths, the lock that secures the position, and the safety teeth that prevent accidental loosening. This segmentation allows independent optimization of adjustability and stability functions.
3Adaptability or versatility
If a complex adjustment mechanism is used, then the tightening adjustability is improved, but the device complexity increases
Solution Approach 1:
The adjustment mechanism is divided into simple, functional segments: a U-shaped element for tightening, a lock for position fixation, and safety teeth for prevention of accidental loosening. Each segment performs a single function, keeping the overall mechanism simple while achieving effective tightening adjustment capability.
Solution Approach 2:
The mechanism incorporates safety teeth that automatically engage with corresponding recesses to prevent accidental loosening during use. This self-service feature provides security and reliability without requiring complex additional components or user intervention, maintaining simplicity while improving adaptability.
Data Source
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AI summary
A carrycot tightening adjustment mechanism in perambulators having soft sidewalls is attached to each end of a bent element similar in shape to the shape of the letter 'U' and hinged to the upper frame of the carrycot. The lower part of a bent element is blocked against the bottom of the carrycot. The mechanism comprises a tightener (1) coupled rotatably to an arm (2), and a lock (3). The depth of inserting the rod (11) into the arm (2) via a longitudinal hollow (10) is obtained by a lock (3) which fits in a hole (12) and is pressed into it, possibly hooked or glued.