Foldable Door Cart With Adjustable Locking Bars for Door Protection
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Solution Overview
Problem
Existing devices for storing and moving vehicle doors are bulky, offer limited utility, and do not protect the doors from damage during storage, while being cumbersome and lacking versatility.
Innovation Solution
A foldable door frame holder cart with a rounded support bar, adjustable prongs, and wheels, designed to securely hold vehicle doors, featuring extendable bars and adjustable locking mechanisms to accommodate various door sizes, and includes side tables for additional functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If doors are stored using existing devices, then doors are protected from damage, but the devices are bulky and cumbersome
Solution Approach 1:
The device is divided into a base portion and a door-holding portion that can be separated or folded. The door-holding portion includes prongs and support structures that can be collapsed when not in use, reducing the overall volume of the device while maintaining door protection capabilities.
Solution Approach 2:
The device is designed to serve multiple functions: holding doors vertically, storing them horizontally, and potentially supporting other objects. This multi-functionality justifies the device's presence and utility beyond mere door storage, making the bulkiness more acceptable.
2Reliability
If existing storage devices are used, then doors are held securely, but the devices offer limited utility and lack versatility
Solution Approach 1:
The device incorporates multiple functional elements: the base can hold the door-holding portion, the prongs can secure doors in vertical position, and the structure can alternatively store doors horizontally. This multi-functionality directly addresses the versatility requirement while maintaining secure door holding.
Solution Approach 2:
The device transitions between different operational states: upright position for vertical door storage, folded position for compact storage, and potentially other configurations. This dynamic adaptability allows the device to serve different purposes and accommodate various user needs.
3Ease of manufacture
If doors are laid on ground surface for storage, then storage is simple, but the door finish can be damaged
Solution Approach 1:
The device provides a raised, protected surface for door storage that prevents direct contact with the ground. The base and door-holding structure act as a cushioning barrier between the door and potentially damaging ground surfaces, protecting the door finish while maintaining storage simplicity.
4Volume of moving object
If a compact device is designed, then ease of transport is improved, but the device may not provide adequate support for various articles
Solution Approach 1:
The device folds from an extended configuration that can support various articles to a compact folded state for transport. The base and door-holding portion can be collapsed together, reducing volume while maintaining the structural integrity needed to support different types and sizes of articles when deployed.
Data Source
AI summary
The current invention is a foldable door frame holder cart with a rounded support bar in the middle of a base holding a door frame. The base has a plurality of wheels in the preferred embodiment. The device has a plurality of doors support bars and adjustable door locking bars connected to the support bars which the hinges of the door frame fit into. The adjustable door locking bars are connected to a thumb-turn bracket which can be used to better secure the door frame to the device. The device without the door with door frame guides that extend up from the top of the base. The cart can carry multiple doors and can fold into a smaller shape for storage.