Quick Lacing System With Spiral Pulley and Ratchet Lock
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Solution Overview
Problem
Tying and untying shoelaces is a tedious process, prone to loosening, which can be unsafe and unsightly, and existing lacing devices have complex structures and poor stability.
Innovation Solution
A quick lacing machine with a base, screw cap, pulley, rotating wheel, rotary driving member, elastic member, and pressing member, where the shoelace is wound on a pulley and loosened by pressing the pressing member and tightened by rotating the screw cap, utilizing spiral teeth and elastic energy for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional shoelaces are used, then the structure is simple, but the lacing process is tedious and time-consuming
Solution Approach 1:
The lacing device is divided into functional modules: a pulley system for winding the laces, a screw cap for tightening, and a pressing member for releasing. This segmentation allows each component to perform its specific function efficiently, achieving quick lacing without requiring a completely complex structure.
Solution Approach 2:
The patent introduces a pressing member as an intermediary component that works with the elastic member to control the release of the laces. This intermediary mechanism simplifies the user operation by converting a simple pressing motion into the controlled unwinding of laces, improving lacing speed without excessive complexity.
2Reliability
If traditional shoelaces are used, then the device is simple, but the fastening stability is poor and easy to loosen
Solution Approach 1:
Instead of using a complex locking mechanism to prevent loosening, the patent inverts the approach by using a ratchet and pawl system that allows controlled tightening through the screw cap while preventing reverse motion. This inversion of the traditional lacing approach provides stable fastening with relatively simple structure.
Solution Approach 2:
The elastic member automatically maintains tension on the laces after tightening, providing self-service stability without requiring continuous user intervention. The system self-regulates the tension to prevent loosening while keeping the structure relatively simple.
3Ease of manufacture
If traditional shoelaces are used, then the structure is simple, but the laces are easily soiled and affect shoe beauty
Solution Approach 1:
The patent extracts the lacing function from the shoe itself and places it in a separate, removable lacing device. This allows the laces to be easily removed and cleaned or replaced without affecting the shoe structure, addressing the soiling issue while maintaining ease of manufacture.
4Ease of operation
If existing lacing devices are used, then the lacing function is improved, but the operation is cumbersome and stability is poor
Solution Approach 1:
The patent employs dynamic elements including the elastic member that provides automatic tension adjustment and the movable pressing member that controls the release mechanism. These dynamic components simplify operation by automatically maintaining tension and allowing easy release, while the overall structure remains relatively compact and simple.
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
The machine allows for simple and efficient loosening and tightening of shoelaces, improving safety and aesthetics by reducing the effort required for putting on and taking off shoes while maintaining secure fastening.
Implementation Method 1
the elastic member is compressed, then the elastic member is in a state of storing elastic potential energy
Implementation Method 2
A plurality of rotary driving teeth are arranged in a circumferential direction of the rotary driving member, and the pressing member is provided with a plurality of second spiral teeth
Data Source
AI summary
A quick lacing machine is disclosed, including a base, a screw cap, a pulley, a rotating wheel, a rotary driving member, an elastic member, and a pressing member. The base is provided with a rotating cavity, a lace hole and a ratchet; the pulley is rotatably arranged in the rotating cavity, and the pulley is provided with a plurality of a first spiral teeth; the rotating wheel is provided with a pawl, the pawl is engaged with the ratchet, and the rotating wheel is provided with a sliding hole, the rotary driving member is slidably arranged in the sliding hole. The present disclosure can loosen a shoelace by pressing the pressing member, and tighten the shoelace by rotating the screw cap, which is simple and convenient to operate, saves time and effort, and thereby improving efficiency of a user taking off and putting on shoes.