Child Carriage Without Push Handle Using Carrier-Integrated Steering
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Solution Overview
Problem
Existing strollers face challenges in achieving a compact fold size due to the presence of a push handle that occupies significant space, limiting their storage convenience.
Innovation Solution
A child carriage design devoid of a push handle above the child carrier, utilizing a handle integrated into the child carrier for pushing, and a frame structure with offset ends and couplers to securely attach the carrier, allowing for a compact folding mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a child carrier is designed to be carried on the shoulder or back, then portability is improved, but the risk of injury to the child's neck and spine increases
Solution Approach 1:
The child carrier system is divided into separate functional modules: a child carrier unit for holding the child and a separate parent carrier unit with shoulder/back straps. This segmentation allows the heavy support function to be separated from the child contact function, enabling safe wearing positions while maintaining portability.
Solution Approach 2:
A detachable coupling device acts as an intermediary between the child carrier and parent carrier. This mediator enables the child carrier to be securely attached to the parent carrier when needed for safe wearing, while allowing independent use of the child carrier when placed on safe surfaces, thus resolving the contradiction between portability and safety.
2Object-affected harmful factors
If a child carrier is designed for safe wearing positions only, then child safety is improved, but ease of use deteriorates due to requiring placement on surfaces
Solution Approach 1:
The system transitions from static placement requirements to dynamic versatility through the detachable coupling mechanism. The child carrier can dynamically switch between being placed on surfaces and being carried on the parent's body, adapting to different usage scenarios and eliminating the limitation of requiring surface placement.
Solution Approach 2:
The child carrier gains multiple functions: it can be used independently on safe surfaces OR coupled to the parent carrier for wearing. This multi-functionality resolves the contradiction by enabling both safe surface use and safe carried use, making the product adaptable to various situations without compromising safety.
3Adaptability or versatility
If a child carrier allows multiple positions and activities, then versatility is improved, but the risk of inappropriate positioning increases
Solution Approach 1:
The system segments the positioning functions: the child carrier unit provides secure child positioning with harnesses, while the parent carrier unit provides safe wearing positions. This segmentation ensures that versatility is achieved through coordinated units rather than compromising the child carrier's positioning safety.
Solution Approach 2:
The detachable coupling device serves as a controlled intermediary that only enables connection when proper positioning is ensured. It acts as a safety gatekeeper, allowing versatility through coupling to the parent carrier while preventing inappropriate positioning by requiring proper attachment to the structured parent carrier.
4Object-affected harmful factors
If a child carrier is designed for newborns only, then safety is improved, but adaptability deteriorates
Solution Approach 1:
The child carrier is designed as a universal base unit that can serve multiple age groups and usage scenarios. When coupled to the parent carrier, it becomes adaptable to different child sizes and positions, while the parent carrier's structured design maintains safety standards. This multi-functionality resolves the contradiction between safety and adaptability.
Solution Approach 2:
The system evolves from a fixed newborn-only design to a dynamic, adaptable system through the detachable coupling mechanism. The child carrier can adapt to different usage modes (independent placement or coupled carrying) and different child developmental stages, while safety is maintained through the structured parent carrier interface and harness system.
Data Source
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AI summary
In one example, a wheeled carriage has a frame with couplers that releasably couple to a child carrier so as to prevent upwards removal of the child carrier from the carriage. The couplers can include a pair of couplers that removably couple to opposing sides of the child carrier. The couplers can include at least one other coupler that removably couples to the child carrier. The carriage is devoid of any push handle that extends above the child carrier and is configured to be pushed by a push handle of the child carrier when the child carrier is coupled to the carriage. The at least one other coupler can limit torque applied to the pair of couplers when the carriage is pushed by the child carrier push handle, and/or couple to a coupler of an infant car seat that also couples the infant car seat to a car seat base.