Retractable Over-the-Door Hanger Assembly with Pre-Assembled Brackets
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Solution Overview
Problem
Existing over the door hanging systems require complex mounting brackets and user assembly, making deployment cumbersome.
Innovation Solution
A retractable over the door hanging apparatus with hangers that extend from a retracted position and hook over the door, utilizing mounting brackets with channels for shafts but not balls, allowing easy assembly and installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard over the door hanging systems use complex mounting brackets and require user assembly, then the system can be securely attached to the door, but the deployment becomes cumbersome and time-consuming
Solution Approach 1:
The hangers are pre-assembled with mounting brackets at the factory, with shafts extending through channels and balls positioned to engage with the brackets. This preliminary assembly eliminates the need for users to assemble multiple components, allowing deployment by simply extending the pre-assembled hangers from a retracted position and hooking them over the door.
Solution Approach 2:
The hangers are designed to retract into a compact nested position within the mounting brackets when not in use. The shafts slide through the channels and the balls nest within the bracket structure, creating a space-saving configuration that simplifies storage and deployment.
2Reliability
If multiple separate components are used for mounting brackets and hangers, then the system can be securely assembled, but the number of parts increases and assembly complexity increases
Solution Approach 1:
The mounting brackets and hangers are merged into a single pre-assembled unit during manufacturing. The shafts are inserted through the channels of the mounting brackets, and the balls are positioned to engage with the brackets, creating an integrated assembly that functions as one component rather than multiple separate parts.
3Ease of manufacture
If fixed position hangers are used, then the installation is simple, but the versatility of use is limited
Solution Approach 1:
The hangers are designed with movable shafts that can extend and retract along the channels of the mounting brackets. The balls can engage at different positions along the channels, allowing the hangers to be adjusted to various door heights and positions. This dynamic design maintains simple installation while providing versatile adaptability to different mounting scenarios.
Data Source
AI summary
An over the door hanging apparatus formed from a pair of hangers and a corresponding set of brackets that allows each hanger to be extended or retracted from the object to be positioned on the door. Each hanger includes a shaft extending from a ball to a hook and each mounting bracket includes a channel having a passageway dimensioned to accept the shaft but not the ball of each hanger. The shaft of each of the pair of hangers extends through the passageway the mounting brackets so that each of the pair of hangers is moveable between a retracted position, where the ball is not engaged with the channel, and an extended position, where the ball is engaged with the channel. The hangers are thus free to extend and retract from the object, and also free to rotate about a longitudinal axis of the shaft of the hooks.