Removable Stroller Seat with Handle-Actuated Locking Mechanism
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Solution Overview
Problem
Existing strollers lack flexibility in accommodating different numbers of occupants and varying ages, as they often require separate frames or complicated reconfiguration to adjust the number of seats, leading to stability issues and inefficient use.
Innovation Solution
A foldable stroller frame with a mount bar and receivers that allow for removable and adjustable seating, enabling one or two seats or accessories to be coupled without altering the frame's size, using a locking mechanism controlled by a handle to secure the seats or accessories at various positions and orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a stroller frame is designed with fixed seats, then the structural stability is improved, but the adaptability to different numbers and ages of occupants deteriorates
Solution Approach 1:
The stroller system is divided into separate modular components: a stable base frame and detachable seat units. The seat includes a seat pan, backrest, and base that can be independently attached or removed from the frame, allowing the frame structure to remain stable while the seating configuration adapts to different occupancy needs.
Solution Approach 2:
The seat assembly incorporates dynamic adjustment capabilities through movable components such as the backrest that can pivot between upright and reclined positions, and the footrest that can be adjusted to different angles. This allows the seat to adapt to different age groups and occupancy conditions while maintaining secure attachment to the stable frame.
2Adaptability or versatility
If multiple seats are permanently attached to accommodate different ages, then the adaptability is improved, but the device complexity and difficulty of reconfiguration worsens
Solution Approach 1:
The seat assembly is designed as a universal unit that can serve multiple functions and accommodate different age groups through its adjustable components. The same seat can be configured for infants (reclined position), toddlers (upright position), or used as a standalone carrier, eliminating the need for multiple specialized seats or complex frame reconfigurations.
Solution Approach 2:
The seat is extracted as a separate, self-contained module from the frame structure. This allows the seat to be easily removed and replaced without affecting the frame or requiring complex disassembly procedures. The extracted seat module can be independently configured or replaced based on occupancy needs.
3Adaptability or versatility
If seats are made removable to increase flexibility, then the adaptability is improved, but the reliability of secure attachment deteriorates
Solution Approach 1:
The attachment system is segmented into distinct engagement components: a mounting interface on the frame and a corresponding receptacle on the seat base. This segmented design allows for simple attachment and detachment while maintaining secure connection through properly engineered engagement surfaces and locking features.
Solution Approach 2:
The attachment mechanism uses simple, robust components that prioritize reliability over complexity. The mounting pins, receptacles, and locking features are designed as durable, easy-to-manipulate elements that ensure secure attachment during use while allowing quick removal when needed, balancing reliability with flexibility.
Data Source
AI summary
Strollers with removable seats and related methods are disclosed herein. An example stroller includes a wheeled frame, a receiver coupled to the frame, and a seat. The seat includes a hub, a mount, and a lock disposed in the mount. The lock is to move from a first positon to a second position when the mount is disposed in the receiver to removably couple the seat to the frame. The seat includes a handle and a pin disposed between the handle and the hub. The handle is moveable from a retracted position to an extended position when the pin is in a third position relative to the handle and the lock is to move from the second position to the first position when the handle moves from the retracted position to the extended position.