Convertible Ottoman Structure With Flip-Up Back Rest and Storage
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Solution Overview
Problem
In small spaces, such as apartments or offices, there is a need for multi-functional furniture that can conserve space without the need for multiple pieces of furniture, as existing solutions often require separate items for different functions.
Innovation Solution
A folding ottoman that can be converted into a chair by a flip-up back rest, which is pivotally connected to opposing arm panels, allowing it to rotate from a horizontal to a vertical position, and includes a pull-out drawer for storage, all while being upholstered and cushioned for comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single piece of furniture is used to perform multiple functions, then space is conserved and furniture quantity is reduced, but the structural complexity and mechanism requirements increase
Solution Approach 1:
The back rest is designed as a dynamic component that can rotate between a horizontal position (when stored under the seat) and a vertical position (when providing back support). This rotational movement allows the same structure to serve different functions, transforming the furniture from a simple seat to a chair with back support, thereby achieving multi-functionality without requiring multiple separate pieces of furniture
Solution Approach 2:
The back rest is divided into multiple sections or segments that can independently rotate and adjust. This segmentation allows the back rest to be stored in a compact horizontal position under the seat when not in use, and to be deployed vertically when needed, enabling the furniture to adapt between different functional states while maintaining structural efficiency
2Volume of moving object
If the back rest is made rotatable between horizontal and vertical positions, then space conservation is improved, but the mechanism complexity increases
Solution Approach 1:
The back rest is designed to nest within or under the seat structure when in the horizontal storage position. The curved slot mechanism allows the back rest to be positioned within the contours of the seat frame, maximizing space utilization. When deployed, the back rest rotates outward to its vertical functional position, achieving compact storage without requiring complex external support structures
Solution Approach 2:
A curved slot mechanism serves as an intermediary element between the back rest and the seat frame. This curved slot guides the rotational movement of the back rest, providing a simple yet effective means to achieve the desired motion trajectory. The curved slot acts as a passive guide that constrains the back rest to move along a predetermined arc, eliminating the need for complex active control mechanisms while enabling smooth transition between storage and functional positions
3Quantity of substance
If a pull-out drawer is added for storage, then storage functionality is improved, but the structural complexity increases
Solution Approach 1:
The pull-out drawer is integrated into the existing seat frame structure, merging the storage function with the structural support elements. The drawer utilizes the hollow interior space of the seat frame, combining the load-bearing function of the seat frame with the storage function of the drawer. This integration allows the drawer to be supported by the same structural elements that provide seat support, thereby adding storage capacity without requiring entirely separate support structures
Solution Approach 2:
The hollow interior space of the seat frame serves multiple functions: it provides structural support for the seat, accommodates the pull-out drawer mechanism, and offers storage capacity. By designing the seat frame with a hollow interior, the same structural element simultaneously performs support and storage functions, reducing the need for additional separate components and minimizing overall structural complexity while maximizing storage utility
Data Source
AI summary
Disclosed herein is a folding ottoman which is convertible to a chair having the usual seat and back rest. A seat frame extends between a pair of opposing arm panels. A storage compartment is slidably connected to the arm panels below the seat frame. The storage compartment is adapted to slide outwardly relative to the seat frame in response to a pulling force applied thereto so as to enable a user to gain access to a storage space at the interior of the storage compartment. A flip-up back rest is pivotally connected to the pair of arm panels by way of a pair of machine bolts extending therebetween. The back rest is rotatable relative to the seat frame from a horizontal, closed position lying atop the seat frame at which the ottoman is established to a vertical, open position standing upwardly from the seat frame at which the chair is established.