Luggage Trunk Stroller With Pivoting Casing And Foldable Seat

Solution Overview

Problem

Conventional luggage trunk strollers are inconvenient and burdensome when carrying infants or children due to limited functionality, unstable design, and increased weight, making it difficult to manage both luggage and children during travel.

Innovation Solution

An adjustable luggage trunk stroller with a foldable seat, featuring a rod assembly, casing, seat cushion, and seat belt, allowing the casing to pivot from 0 to 90 degrees, enabling the seat cushion to be adjusted for sitting or lying positions, and securely fastening the infant with a seat belt.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional trunks are used to store luggage, then luggage storage is provided, but mobility becomes inconvenient when carrying infants or children

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent combines a stroller function with a luggage trunk by integrating a seat cushion, seat belt, and wheel assembly into the trunk structure. The casing serves dual purposes as both luggage storage and stroller base, allowing users to carry both luggage and infants simultaneously without needing separate devices.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The trunk is designed with multi-functionality, serving as both a luggage storage container and a stroller for carrying infants. The rod assembly enables the trunk to be maneuvered like a stroller while maintaining its luggage storage capability, creating a universal device that replaces both traditional trunk and stroller functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If strollers and luggage are carried separately, then infant carrying is provided, but physical burden increases

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The patent merges the infant carrying function with luggage storage by integrating the seat cushion and wheel assembly into the trunk structure. This allows the user to carry both the infant and luggage in a single device, eliminating the need to separately manage the weight of both items.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If fixed seat positions are used in luggage trunk strollers, then structural simplicity is maintained, but adaptability for different infant positions is limited

Engineering Contradiction:
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The seat cushion is designed with dynamic adjustability, allowing it to be pivoted between a horizontal position for sitting infants and a vertical position for lying infants. This dynamic adjustment capability is achieved through the rod assembly connection, which enables the seat cushion to change its orientation while remaining structurally integrated with the trunk.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If single wheels are used for inclination, then mobility is improved, but structural stability decreases

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent employs asymmetric wheel arrangement with one front wheel and two rear wheels positioned at different locations. This asymmetric configuration provides both the mobility needed for easy maneuvering and the structural stability required for safe infant carrying, as the distributed wheel positions create a stable base while allowing directional control.

Inventive Principle:
Principle #4Asymmetry

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 efficient and secure carrying of both luggage and infants during walking by providing a stable and adjustable seating solution, reducing physical burden and improving mobility.

Implementation Method 1

The parallel sleeves have two rotation pivots and two support rods at two sides of the parallel sleeves separately opposite to the casing; the support rods are disposed to the rotation pivots at second top ends of the support rods separately to be swayed with a center of the rotation pivots

Methodology Applied
Scientific EffectMechanical rotation: Lever

Implementation Method 2

the seat cushion is pivotally connected to the casing; the seat cushion is swayed and extended to be used on a front surface of the casing or is swayed and folded to be disposed on a side of the casing

Methodology Applied
Scientific EffectMechanical rotation: Hinge

Implementation Method 3

the parallel sleeves are combined with a front wheel set at first bottom ends of the parallel sleeves; the parallel sleeves have two rotation pivots and two support rods at two sides of the parallel sleeves separately opposite to the casing

Methodology Applied
Scientific EffectMechanical rotation: Wheel

Implementation Method 4

the support rods are combined with a rear wheel set at second bottom ends of the support rods

Methodology Applied
Scientific EffectMechanical rotation: Wheel

Data Source

PatentUS10555588B2Adjustable luggage trunk stroller having foldable seat
Publication Date: 2020.02.11
  • US10555588B2 patent drawing
  • US10555588B2 patent drawing
  • US10555588B2 patent drawing

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.