Box Enclosure Hoist Assembly With Guided Spring Torque Adjustment
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Solution Overview
Problem
Existing attic stair systems require significant force to detach and reattach the spring for adjusting the spring end attachment position, making the process cumbersome and inefficient.
Innovation Solution
A continuous hoist assembly traverse path for the spring end allows for automatic adjustment of the spring attachment position without detachment, using a guide that connects adjacent positions, facilitating easy and convenient adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the spring end attachment position is changed by detaching and reattaching the spring, then the spring torque can be adjusted, but significant force is required and the process is cumbersome
Solution Approach 1:
A traverse path is introduced as an intermediary element that guides the spring end between attachment positions. The traverse path acts as a mediator that allows the spring end to move from one attachment position to another without requiring complete detachment and reattachment, thereby reducing the force needed and simplifying the adjustment process
Solution Approach 2:
The attachment path is segmented into discrete attachment positions along the traverse path. Instead of requiring complete detachment for position changes, the spring end can be sequentially moved between segmented positions along the guided traverse path, making the adjustment process less cumbersome
2Adaptability or versatility
If the spring end attachment position is changed by detaching and reattaching, then torque adjustment is possible, but the process is time-consuming
Solution Approach 1:
The traverse path serves as a mediator that enables quick transitions between attachment positions. By providing a predefined guided path, the system eliminates the time-consuming process of complete detachment and reattachment, allowing rapid position changes during installation or maintenance
Solution Approach 2:
The traverse path is pre-configured with multiple attachment positions before installation. This preliminary arrangement of attachment points along the traverse path allows for quick selection and switching between different torque settings without requiring time-consuming measurement or positioning during the adjustment process
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 efficient and effortless adjustment of spring torque to accommodate changes in load without replacing the spring, ensuring smooth operation and adaptability to varying weights.
Implementation Method 1
A box enclosure hoist assembly according to the invention solves this problem by using a continuous hoist assembly traverse path for the spring end, so that when changing the spring attachment position, its end skips between adjacent attachment positions whilst moving along the traverse path which connects attachment positions.
Data Source
AI summary
The subject-matter of the invention comprises a box enclosure hoist assembly, built out of spring (41), one end of which is designed to be connected to box enclosure fixed structural element (1) and the other end is connected with the hoist assembly hoist supports (42, 43) unit and there are at least two spring (41) end attachment positions (51, 52) on one of the supports (42) and that between attachment positions (51, 52) there is continuous traverse path (421) to guide spring (41) end from one attachment position (51) to another attachment position (52), as well as a method for changing spring end attachment position in the hoist assembly.