Sofa Cushion Sleeve Mounting for Stable Tool-Free Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Sofa cushions made of foam material are prone to movement when in use and cannot be easily removed or replaced without damaging the sofa frame, making maintenance and repair inconvenient.
Innovation Solution
A sofa cushion design featuring a cushion member with a connection sleeve that allows for tool-free installation and removal from the sofa frame by inserting the frame into the sleeve, providing stability and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cushions are directly placed on the sofa frame, then ease of operation is improved, but stability deteriorates
Solution Approach 1:
The connection system is segmented into two parts: a connection sleeve attached to the cushion and a corresponding receptacle on the sofa frame. This segmentation allows the cushion to be easily installed and removed while maintaining stability when in place, resolving the contradiction between ease of operation and stability.
Solution Approach 2:
The connection sleeve is designed to receive and nest the sofa frame's support structure within it. This nesting mechanism provides firm holding and stability while allowing for easy insertion and removal, simultaneously achieving both ease of operation and stability.
2Stability of the object's composition
If cushions are fixed to the sofa frame by sewing, then stability is improved, but ease of repair deteriorates
Solution Approach 1:
The connection system is segmented into removable components (connection sleeve and frame receptacle) rather than being permanently sewn together. This allows the cushion to be easily detached for cleaning and repair while maintaining stability during use, resolving the contradiction between stability and ease of repair.
Solution Approach 2:
The connection system transitions from a static permanent attachment (sewing) to a dynamic removable attachment. The cushion can be easily detached and reattached, providing both stability when installed and ease of removal for maintenance, thus resolving the contradiction.
3Volume of moving object
If cushions are made large for comfort, then comfort is improved, but device complexity increases
Solution Approach 1:
The connection system is segmented into simple, standardized components (connection sleeve and receptacle) that can be applied to cushions of any size. This modular approach allows large cushions for comfort while keeping the connection mechanism simple and low-complexity.
Solution Approach 2:
The connection sleeve design is universal and can be applied to cushions of various sizes and types (seating cushions, back supporting cushions, etc.). This universality allows large cushions for comfort without increasing the complexity of the connection system, as the same simple mechanism works for all cushion sizes.
Data Source
AI summary
A sofa cushion adapted for being conveniently installed with or removed from a sofa frame includes a cushion member and a connection sleeve. The connection sleeve extends from a back side or a bottom side of the cushion member and has a first end with a first opening for enabling that the sofa frame is inserted into the connection sleeve through the first opening. Without the need of any tool, the sofa cushion can be installed with and removed from the sofa frame by a user herself/himself, and after the sofa cushion is installed with the sofa frame, the sofa cushion is firmly held with the sofa frame and not liable to move.