Rotary Clothes Dryer Line Retraction to Prevent Slider Tilting
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Solution Overview
Problem
Existing rotary clothes dryers require significant effort to open due to the retraction mechanism, which is complicated by transverse forces exerted by the clothesline on the slides, leading to tilting and increased friction.
Innovation Solution
The slides are designed with guide lugs and grooves for precise fit and beveled or rounded inlet openings to prevent tilting and allow the clothesline to run straight, reducing lateral forces and friction during opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the retraction mechanism is added to protect the clothesline, then the clothesline is protected when the dryer is closed, but the effort required to open the dryer increases
Solution Approach 1:
The clothesline retraction mechanism operates automatically through the hinge's rotational motion. As the hinge rotates from horizontal to vertical position, the clothesline is automatically drawn into the support arm via the guide groove and retraction opening, eliminating the need for manual operation during the closing process
Solution Approach 2:
The clothesline is guided through a three-dimensional path using the guide groove that runs along the support arm. The guide opening is positioned at an angle to allow the clothesline to transition smoothly from the horizontal extended position to the vertical retracted position, reducing friction and operational effort
2Reliability
If the clothesline is stretched during opening, then the clothesline is secured, but transverse forces cause slides to tilt and friction increases
Solution Approach 1:
The guide groove acts as an intermediary element between the clothesline and the support arm. It channels the clothesline along a predetermined path, preventing lateral displacement and ensuring that tensile forces are transmitted axially without causing the slide to tilt or increase friction
Solution Approach 2:
The guide opening is positioned and oriented to create an equipotential path for the clothesline during the transition from horizontal to vertical position. This ensures that the clothesline experiences minimal resistance and no transverse forces during the opening process, as the guide groove aligns with the direction of force application
Data Source
AI summary
The invention relates to a rotary clothes dryer having sliders longitudinally displaceably disposed in at least one support arm and on which clotheslines are attached, wherein the sliders (1) are drawn from the rest position thereof by the clotheslines through the support arm (7) when the rotary clothes dryer is opened, in order to reduce the force required for opening, it is provided that the sliders are formed and/or the clotheslines are disposed on the sliders such that transverse forces that could lead to tipping and/or tilting of the slider are prevented and/or compensated for.