Adjustable luggage trunk stroller having foldable seat
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional luggage trunk strollers are inconvenient and burdensome when carrying infants or children due to limited functionality, increased weight, and structural weaknesses, particularly in handling and mobility, as they often require extra space and fixed seating positions that are not suitable for traveling.
Innovation Solution
An adjustable luggage trunk stroller with a foldable seat, comprising a rod assembly, a casing, a seat cushion, and a seat belt, allowing the casing to pivot from 0 to 90 degrees, enabling the seat cushion to be extended for sitting or folded for lying down, thus facilitating the simultaneous carrying of luggage and infants during walking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional trunks are used with separate baby strollers, then luggage storage is simple, but mobility becomes inconvenient and physical burden increases
Solution Approach 1:
The patent combines the luggage trunk and baby stroller into a single integrated device. The trunk body serves as both luggage storage and the baby seat, eliminating the need to carry separate strollers. The rod assembly integrates the handle, wheels, and support structure for both functions, allowing one-handed operation while carrying both luggage and infant.
Solution Approach 2:
The trunk body serves multiple functions: it acts as luggage storage, an infant seat, and a structural frame for the entire device. The rod assembly provides both the pulling handle and the support structure for the infant. This multi-functionality reduces the number of separate items needed, decreasing overall weight and improving mobility convenience.
2Adaptability or versatility
If fixed seating positions are used in traditional luggage trunk strollers, then structural design is simple, but adaptability to different infant positions is poor
Solution Approach 1:
The patent implements a foldable seat cushion that can be adjusted between multiple positions. The cushion is hinged to the trunk body and can be folded down to create a flat lying position or raised to create a sitting position. This dynamic adjustment capability allows the seat to adapt to different infant needs without requiring multiple separate seat structures.
Solution Approach 2:
The seat cushion is designed as a separate, movable component that can be independently adjusted relative to the trunk body. This segmentation allows the cushion to be folded or extended without affecting the overall structural integrity of the trunk, providing position adaptability while maintaining relatively simple structural design.
3Reliability
If seat cushion is unfolded for infant sitting, then infant comfort is improved, but structural strength may be compromised
Solution Approach 1:
The patent uses an arc-shaped support rod that extends from the handle to the rear wheel, providing structural reinforcement. This curved geometry distributes mechanical loads more effectively than straight rods, maintaining structural strength even when the seat cushion is folded out. The arc shape also provides a natural support for the cushion's movement, ensuring stability in both folded and unfolded states.
Solution Approach 2:
The patent employs multiple materials with different properties: the trunk body uses hard, rigid material for structural strength, while the seat cushion uses soft, flexible material for infant comfort. The rod assembly combines rigid metal rods with flexible connections, creating a composite structure that maintains strength during cushion movement. This material combination allows the cushion to be folded out for comfort without compromising overall structural integrity.
4Ease of operation
If single wheels are used for inclination adjustment, then mobility is improved, but operation becomes laborious when carrying heavy luggage and infant
Solution Approach 1:
The patent uses a dual-wheel configuration where the front and rear wheels are positioned to create a balanced weight distribution. The arc-shaped support rod acts as a lever arm, with the handle positioned to provide mechanical advantage. This arrangement creates a counterbalancing effect that reduces the force needed to maneuver the device, making it easier to operate when carrying heavy luggage and an infant compared to single-wheel designs.
Data Source
AI summary
An adjustable luggage trunk stroller with seat cushion is provided. The luggage trunk stroller has an innovative structure, comprising a casing, a rod assembly, a seat cushion and a seat belt. As comparing to the conventional structure, the casing can be manually rotated for changing the tilt angle of the casing at 0˜90 degrees and fastened to a certain position with the coordination of the rod assembly. When disposing the casing at a certain angle, the seat cushion can be swayed and extended for an infant to sit. Or, when the casing is disposed in a horizontal planar state, the seat cushion can be swayed and folded for the infant to lie flat. Thus, the luggage trunk stroller is capable of carrying the infant during walking. The luggage and the infant can be carried at the same time for effectively improving the added value of the luggage trunk stroller.