Vertical Lift Door Panels with Segmented Track Guide
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Solution Overview
Problem
Existing vertical lift door systems face challenges such as inefficient use of space, mechanical instability, and aesthetic issues due to horizontal storage, high weight and complexity of roll-up doors, and difficulties in installation and maintenance of accordion fold systems.
Innovation Solution
A self-storing vertical lift door system comprising multiple panels supported by single track guide rails with guide rollers and connector links, allowing panels to transition from a vertically stacked closed position to a horizontally spaced open position, reducing mechanical complexity and enabling compact storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single unitary door panel is used in a vertical lift door system, then the door structure is simple, but it consumes large ceiling space when stored horizontally and requires reinforcing members to prevent warping
Solution Approach 1:
The door is divided into multiple separate panels (typically 3-5 panels) that can be stored vertically in a compact arrangement along the track, reducing ceiling space consumption from horizontal storage of a single large panel to vertical stacking of smaller panels
2Device complexity
If a single unitary door panel is used, then the door structure is simple, but mechanical forces during movement tend to warp the door
Solution Approach 1:
Dividing the door into multiple smaller panels reduces the mechanical stress and warping forces on each individual panel during movement, as each panel is smaller and more rigid relative to its size compared to a single large panel
Solution Approach 2:
Multiple panels are connected through the track system to function as a unified door structure, combining the stability benefits of smaller rigid panels while maintaining the overall door functionality
3Strength
If roll-up doors with corrugated flexible structure are used, then door sturdiness is improved, but weight increases and mechanical complexity increases
Solution Approach 1:
The door is segmented into multiple rigid panels that can be thinner and lighter than a single thick panel, while the track system provides the necessary structural support and stability
Solution Approach 2:
The complex winding drum mechanism of roll-up doors is replaced with a simpler vertical lift track system that uses guide rollers and counterweights, reducing mechanical complexity while maintaining sturdiness
4Area of stationary object
If accordion fold door systems with interconnected panels are used, then vertical door storage in compact area is achieved, but installation and maintenance difficulty increases
Solution Approach 1:
The door is segmented into separate panels that move independently on individual tracks, eliminating the complex interconnected folding joints of accordion doors and simplifying installation and maintenance
Solution Approach 2:
The track system serves as an intermediary guide structure that coordinates the movement of separate panels, replacing the direct mechanical connections required in accordion fold systems
Data Source
AI summary
A vertical lift, self-storing door system includes a plurality of panels supported by a first and a second single track guide rail which engages guide rollers associated with the panels. The guide rail has a vertical segment which defines a closed position of the door and a horizontal segment which defines an open, storage position for the door. When the door is closed, the individual panels are stacked in an edge-to-edge relationship so that their front faces are coplanar. When the door is in an open position, the panels hang vertically from the guide rails in a spaced apart, generally plane parallel relationship with regard to their front and rear faces. Bevels in the top and bottom edges of the panels accommodate panel motion and ensure a tight seal when the door is in a closed position, and these bevels may include connecting features such as notches or tabs.