Front-Opening Foldable Luggage With Telescopic Sidewalls

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Solution Overview

Problem

Existing luggage is not foldable, requiring a fixed volume that occupies excessive space and incurs high transportation costs due to its inflexible design.

Innovation Solution

A foldable luggage with a front opening and telescopic sidewall that can be folded, combined with a front lid and sidewall support devices, allowing the luggage to be compacted without laying flat, and featuring a telescopic pull rod, spinner wheels, and a capacity expansion zipper.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If traditional fixed-volume luggage is used, then structural stability is maintained, but space occupation increases and transportation cost rises

Engineering Contradiction:

Improveluggage volumeVSAvoidluggage foldability

Core Design Contradiction:

Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The patent applies the dynamics principle by making the sidewalls telescopic and foldable rather than fixed. The sidewalls can extend to provide maximum volume when needed and fold back to reduce volume for storage or transportation, allowing the luggage to dynamically adapt its volume based on usage requirements.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent segments the sidewall structure into multiple telescopic sections that can independently fold and extend. This segmentation allows the luggage to be divided into collapsible units, enabling compact folding when not in use while maintaining structural integrity when expanded.

Inventive Principle:

Principle #1Segmentation

2Productivity

If traditional fixed-volume luggage is used, then manufacturing simplicity is maintained, but transportation efficiency decreases

Engineering Contradiction:

Improvetransportation efficiencyVSAvoidluggage structure complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The dynamic telescopic sidewall mechanism allows the luggage to transform between expanded and compact states, directly improving transportation efficiency by reducing occupied space during storage and transit without compromising the structural stability needed for safe travel.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If front opening design is added, then accessibility is improved, but structural complexity increases

Engineering Contradiction:

Improveitem accessibilityVSAvoidluggage structure complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The front opening design segments the access function from the main closure system, allowing users to access items at the front without opening the entire luggage. This is achieved through a separate front lid or opening mechanism that operates independently from the main zipper or latch system.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250331616A1Foldable luggage with front opening

Publication Date: 2025.10.30 YANG ZHENCHU

AI summary

Disclosed in the present disclosure is a foldable luggage with a front opening, comprising a first case and a second case, wherein a telescopic sidewall, which is arranged in a surrounding manner and can be folded, is connected between the first case and the second case, a front surface of the second case is provided with a front opening in communication with luggage compartment, a front lid is arranged at the position of the front opening of the second case, the second case is connected to the front lid by a front lid open/close zipper, and sidewall support devices located on an inner side of the telescopic sidewall are arranged inside the luggage compartment, or the sidewall support devices are arranged inside the telescopic sidewall.