Exercise chair with spin seat
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Solution Overview
Problem
Conventional Pilates chairs are limited in the variety of exercises they can perform, as they typically only allow seated exercises with fixed seats, preventing users from performing Reformer-based exercises and other non-traditional exercises that require different positional flexibility.
Innovation Solution
An exercise chair with a rotatable seat and adjustable rear support assembly, including levers and springs, which allows for multiple exercise positions and resistance levels, enabling traditional Pilates, Reformer-based, and new exercises by varying the seat orientation and resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed seat is used in a Pilates chair, then the structural simplicity is maintained, but the exercise variety is limited
Solution Approach 1:
The seat is transformed from a fixed structure to a dynamic one that can rotate 360 degrees around a vertical axis and adjust to multiple倾斜 angles. This dynamic capability allows the same seat structure to support diverse exercise positions (seated, prone, supine, lateral) without adding multiple separate components, thereby increasing exercise variety while controlling complexity.
Solution Approach 2:
The rotatable and adjustable seat serves multiple functions: it enables traditional seated Pilates exercises, Reformer-based exercises requiring prone/supine positions, and new non-traditional exercises. A single seat mechanism replaces what would traditionally require multiple specialized pieces of equipment, achieving multi-functionality without proportionally increasing complexity.
2Adaptability or versatility
If a fixed rear support assembly is used, then the structural stability is maintained, but the positional flexibility is limited
Solution Approach 1:
The rear support assembly incorporates levers that can pivot about a horizontal axle, transforming from a fixed structure to a dynamic one. This allows the support assembly to adapt to different exercise positions while maintaining structural integrity through controlled mechanical movement rather than requiring multiple separate support structures.
Solution Approach 2:
The rear support assembly is divided into separable components (levers, springs, pivot axle) that can be independently adjusted or removed. This segmentation allows flexible reconfiguration for different exercises while maintaining overall structural stability when assembled, resolving the contradiction between adaptability and stability.
3Adaptability or versatility
If fixed resistance springs are used, then the device simplicity is maintained, but the resistance adjustability is limited
Solution Approach 1:
The resistance mechanism allows adjustment of spring parameters by changing attachment points on the levers and frame. Users can modify resistance levels by repositioning spring connections to different locations, enabling variable resistance for different exercise intensities without requiring multiple spring sets or complex mechanical systems.
Solution Approach 2:
The resistance system transitions from fixed spring attachments to dynamic, adjustable connections. The springs remain physically fixed to the frame, but their effective attachment points on the movable levers can be changed, providing resistance adjustability through lever position changes rather than replacing springs, thus maintaining simplicity while enhancing adaptability.
4Adaptability or versatility
If the seat cannot rotate, then the ease of operation is maintained, but the exercise range is limited
Solution Approach 1:
The seat incorporates a rotation mechanism allowing 360-degree movement around a vertical axis. This dynamic rotation capability enables users to easily transition between different exercise orientations (front, side, back) without requiring manual repositioning of the entire chair or complex locking mechanisms, maintaining ease of operation while expanding exercise range.
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
Enables a wide range of exercises by allowing the seat to swivel 360 degrees and adjusting resistance levels, accommodating traditional Pilates and Reformer-based exercises, as well as new non-traditional exercises, enhancing user flexibility and workout variety.
Implementation Method 1
The resistance member includes a spring that is extendable between a retracted position and an extended position
Implementation Method 2
the seat assembly includes a base, a seat, and a mechanism for rotating the seat about a vertical axis of the base
Data Source
AI summary
An exercise chair includes a frame and a seat rotatably coupled to the frame. First and second front support members are coupled to the frame in laterally spaced part relation and first and second rear support members are coupled to the frame in laterally spaced part relation, the first and second front support members and the first and second rear support members cooperating to support the frame above a surface.