Low-Profile Ottoman Linkage to Conceal Pinch Points
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Solution Overview
Problem
Existing motion upholstery furniture ottoman linkages present a 'scissor-like' appearance and undesirable pinch points when extended, which detract from the aesthetic and user experience.
Innovation Solution
A novel, simplified ottoman linkage mechanism with a low profile design that uses a series of pivotably interconnected links and a shield to conceal the components, reducing exposed pinch points and enhancing the appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional ottoman linkage mechanisms are used, then the ottoman can be extended to provide TV position and reclined position, but the linkage presents a scissor-like appearance and creates undesirable pinch points
Solution Approach 1:
The patent extracts the visible linkage components from the exterior view by using an internal linkage mechanism that operates behind the ottoman's outer shell. The linkage is contained within the ottoman structure, removing the scissor-like appearance from external view while maintaining the extension function.
Solution Approach 2:
The patent introduces an intermediary mechanism that translates the extension motion into a different geometric configuration, avoiding the direct scissor linkage exposure. The intermediary components redirect the mechanical motion internally, preventing direct visual exposure of the linkage arms.
2Ease of operation
If conventional ottoman linkage mechanisms are used, then the ottoman can be extended forward of the seat, but the linkage presents exposed pinch points that are unsafe
Solution Approach 1:
The patent removes the hazardous exposed linkage components from the user's accessible area by containing them within the ottoman's internal structure. The pinch points are extracted from the external environment and isolated within the safe boundaries of the ottoman housing.
Solution Approach 2:
The patent converts the potentially harmful exposed linkage into a beneficial enclosed mechanism where the same extension function is achieved, but the pinch points are transformed into internal, protected connection points that cannot contact the user during operation.
3Shape
If a low profile ottoman linkage is designed, then the appearance is sleeker and pinch points are reduced, but the mechanism complexity increases
Solution Approach 1:
The patent nests the linkage mechanism within the ottoman's internal volume, placing one component inside another to achieve a compact, low-profile external appearance. The linkage arms are nested within the ottoman structure, maintaining a sleek exterior while accommodating the necessary mechanical components internally.
Data Source
AI summary
An ottoman linkage is provided that moves a footrest from a closed position to an extended position. The ottoman linkage includes a front ottoman link coupled to a seat mounting plate, and an outside ottoman link pivotally coupled to the front ottoman link. A rear ottoman link is coupled to the seat mounting plate and the outside ottoman link. An inside ottoman link is pivotally coupled on a first end to the front ottoman link, and pivotally coupled on a second end to a footrest bracket, the inside ottoman link being generally in-line with the outside ottoman link when the mechanism is in an extended position, and the outside ottoman link having a width that obscures the inside ottoman link from view.