Hanging Chair Spherical Backrest Connection for Smooth Folding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hanging chairs experience unsmooth folding and unfolding due to backrest rods getting stuck when rotating relative to the frame, making them inconvenient to use.
Innovation Solution
The backrest rods of the hanging chair are designed with spherical connections to the frame, allowing for flexible rotation and reducing the likelihood of getting stuck, thereby enhancing the smoothness of folding and unfolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If backrest rods are rotatably arranged on the frame for folding and unfolding, then the hanging chair can be folded and unfolded, but the backrest rods may get stuck when rotating, resulting in unsmooth folding and unfolding
Solution Approach 1:
The patent applies spherical connection between the backrest rod and frame, where the backrest rod is connected to the frame via a spherical joint consisting of a spherical cavity and a spherical head. This spherical connection allows multi-directional rotation and movement, eliminating the sticking problem that occurs with fixed-axis rotations. The spherical geometry enables the backrest rod to rotate smoothly in multiple directions while maintaining reliable connection to the frame.
Data Source
AI summary
A hanging chair is provided, which includes a frame, a seat, and a plurality of backrest rods. The seat is disposed on a side of the frame and connected with a bottom of the frame. The plurality of backrest rods are disposed on a side of the frame and arranged at intervals along a longitudinal direction of the frame, the plurality of backrest rods are rotatably disposed on the frame, and at least some of the backrest rods each has at least one end spherically connected with the frame.