Folding Chair Canopy Pivot Structure for Shade and Foldability
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Solution Overview
Problem
Existing folding chairs with canopies or umbrellas often limit foldability and provide inadequate adjustability for sun or rain protection, as they are either non-detachable or lack adjustable features.
Innovation Solution
A detachable canopy or umbrella with push button hinges allowing 360-degree rotation and pivotal movement about horizontal axes, enabling adjustable positioning on either side of the chair for optimal protection from the sun and rain, while being easily stowed away for storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a canopy or umbrella is attached to a folding chair, then sun and rain protection is provided, but the chair's foldability is limited or the canopy must be removed before folding
Solution Approach 1:
The canopy is designed with movable and adjustable components including a telescopic pole that can extend and retract, and a rotating top section that can pivot 360 degrees. The attachment mechanism allows the canopy to be quickly deployed and collapsed without permanent fixation, enabling the chair to fold properly while maintaining protection when needed.
Solution Approach 2:
The canopy is divided into separate modular components: a detachable pole, a rotating top section with fabric panels, and a base attachment mechanism. This segmentation allows each component to be independently adjusted or removed, enabling the canopy to be collapsed flat against the chair frame without interfering with the folding mechanism.
2Device complexity
If a symmetrical canopy is mounted using a single centered arm or post, then simple attachment is achieved, but adjustability of the canopy position is limited
Solution Approach 1:
The canopy top is designed to rotate 360 degrees around the vertical pole axis, and the pole itself can pivot relative to the chair frame. This dynamic design allows the canopy to be positioned at various angles and orientations to match different sun positions and user preferences, transforming a static centered attachment into an adjustable protective shelter.
3Ease of operation
If a detachable canopy is used to maintain chair foldability, then ease of storage is improved, but adjustability and protection effectiveness are reduced
Solution Approach 1:
The detachable canopy incorporates a telescopic pole mechanism that allows the pole length to be adjusted. When attached, the pole can be extended to provide full overhead coverage for sun and rain protection. The same telescopic mechanism allows the pole to be retracted for compact storage alongside the chair, maintaining protection effectiveness when needed while enabling convenient storage when not in use.
Data Source
AI summary
A folding canopy chair includes a frame, a seat, a back, and arm rests. An umbrella is secured to the frame and is pivotal between an upright use position extending above the chair and a downward storage position adjacent the frame. The umbrella is pivotal about both a horizontal axis and a vertical axis for selective positioning of the umbrella relative to the chair, so as to shade a person sitting in the chair from the sun. The umbrella may be non-symmetrical, and removably mounted on either the left or right, side of the chair.