Stowaway compact rocker
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Solution Overview
Problem
Existing collapsible rocking chairs are not suitable for outdoor use on soft or uneven surfaces, as they compromise structural integrity and safety, and lack the ability to maintain full contact with the ground, affecting rocking motion and stability.
Innovation Solution
A stowaway compact rocker design with a stationary frame base and movable seating assembly, incorporating compliant members like plate springs between the base and seating assembly, allowing for adjustable rocking motion and easy collapse for transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional pack chairs with detachable frame members are used, then portability and ease of transport are improved, but rocking capability is lost and structural integrity on soft surfaces deteriorates
Solution Approach 1:
The chair frame is divided into stationary and movable portions, with the seating assembly capable of relative movement against the frame base. This segmentation enables rocking motion while maintaining the collapsible structure for portability.
Solution Approach 2:
The chair incorporates a dynamic seating assembly that can move relative to the stationary frame base through compliant members. This dynamic capability provides rocking motion while the overall structure remains collapsible for transport.
2Stability of the object's composition
If all legs remain in contact with ground for structural integrity, then stability is improved, but rocking motion is compromised
Solution Approach 1:
The chair structure is segmented into a stationary frame base that remains grounded and a movable seating assembly that rocks. This allows the legs to maintain ground contact for stability while the seating portion achieves rocking motion through relative movement.
Solution Approach 2:
Compliant members act as intermediaries between the stationary frame and movable seating assembly. These members transmit forces while allowing relative motion, enabling rocking while maintaining structural integrity through the stationary base contact with ground.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design maintains stability and safety on various surfaces while enabling comfortable rocking and easy setup/collapse, optimizing portability without compromising comfort or durability.
Implementation Method 1
a compliant member or assembly, such as a plate spring, connected between the lower transverse support member and the upper transverse support member
Data Source
AI summary
A stowaway compact rocker having a set-up condition and a collapsed condition comprises a stationary chair frame base; a movable chair frame seating assembly adapted for rocking movement relative to the stationary chair frame base; and a rocker mechanism operatively connected between the stationary chair frame base and the movable chair frame seating assembly. The stationary chair frame base comprises a lower transverse support member, a pair of leg mounts disposed thereon, front leg tubes, and rear legs tubes, each leg tube being adapted for connection to a leg mount. The movable chair frame seating assembly comprises an upper transverse support member, a pair of seat tube mounts disposed thereon, seat member tubes, each being adapted for connection to a respective one of the seat tube mounts, and back-rest member tubes, each being adapted for connection to a respective one of the seat tube mounts.