Rotary Self-Lock Catch Mechanism for Knot-Free Rope Tensioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for tightening and managing ropes, such as shoelaces and waistbands, are cumbersome, particularly for children and individuals with disabilities, as they require knot-tying skills and frequent adjustments, leading to inconvenience and instability.
Innovation Solution
A rotary self-lock catch system comprising a pedestal, arresting disc, rotary knob, and take-up reel with elastic buckles and springs, allowing for rope tightening without knots and easy loosening by compressing a spring, ensuring the rope remains secure without manual re-tightening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If knots are tied to tighten and secure ropes (e.g., shoelaces, waistbands), then the ropes can be tightened and secured, but it becomes difficult for children and disabled persons to operate, and the knots may loosen during movement
Solution Approach 1:
The invention employs a self-locking mechanism where the rotary knob automatically locks the rope in position through elastic buckles that engage with latches on the arresting disc. When the rope is pulled, the elastic buckles deflect and automatically engage with the latches, providing self-service locking without requiring user skill or manual intervention.
Solution Approach 2:
The patent introduces an intermediary mechanism (the arresting disc with elastic buckles and latches) between the user's manual operation and the rope securing function. This intermediary automatically handles the locking and securing actions, translating simple rotary motion into reliable rope tensioning and locking, thereby eliminating the need for complex knot-tying skills.
2Reliability
If knots are tied to secure ropes, then the ropes can be tightened, but loosening or tightening requires unfastening and re-tying the knot, making the operation tedious
Solution Approach 1:
The invention employs a dynamic rotary knob mechanism that can be easily rotated to adjust rope tension. The knob dynamically transitions between locked and unlocked states through the elastic buckle-latch engagement system, allowing quick adjustment in either direction without requiring complete unfastening and re-tying operations.
Solution Approach 2:
The elastic buckles are pre-positioned and pre-loaded in a state ready to engage with the latches on the arresting disc. This preliminary preparation allows the mechanism to instantly lock or unlock the rope with minimal user action, eliminating the time-consuming process of unfastening and re-tying knots for adjustments.
3Reliability
If traditional knot-tying methods are used, then ropes can be secured, but the process is complex and requires skill, increasing device complexity
Solution Approach 1:
The invention extracts the complex knot-tying skill requirement from the user and relocates it into a pre-engineered mechanical system. The elastic buckles, latches, and rotary knob form an integrated mechanism that performs the securing function automatically, removing the need for users to learn or perform complex knot-tying techniques.
Solution Approach 2:
The mechanism serves itself by automatically locking and securing the rope through the elastic buckle-latch engagement system. The elastic buckles automatically deflect and engage with the latches on the arresting disc when the rotary knob is rotated, providing self-service functionality that eliminates the need for complex manual knot-tying operations.
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 effortless rope tightening and loosening, eliminating the need for knots and maintaining stability during use, providing convenience and ease of use for all users, including those with dexterity challenges.
Implementation Method 1
at least one spring being arranged between the bottom of the take-up reel and the mounting cavity, the take-up reel having a tendency of bouncing outwards under an action of the spring
Data Source
AI summary
The present invention discloses a rotary self-lock catch. As a rope penetrates into the take-up cavity of the take-up reel and a tail end of the rope is limited at a boundary between a through hole and a hollowed cavity, when the rotary knob is rotated, the take-up reel can be driven to rotate together, so that the rope is wound in the take-up cavity by the take-up reel, and the rotary knob is allowed to rotate along one direction, so that an effect of tightening the rope can be realized.