Folding Luggage with Spring-Loaded Pushers for Automatic Positioning
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Solution Overview
Problem
Conventional folding collapsible luggage designs require users to manually tie the luggage in the collapsed position to prevent accidental extension and need supplementary support for the extended position, which is inconvenient.
Innovation Solution
The luggage incorporates spring-loaded pushers and a retractable handle assembly with abutment surfaces to facilitate smooth transitions between collapsed and extended positions, eliminating the need for external locking or support structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional folding collapsible luggage is collapsed, then storage space is reduced, but the user needs to manually tie it with rope or belt to prevent accidental extension
Solution Approach 1:
The pusher assembly automatically maintains the collapsed position of the luggage body without requiring user intervention. The spring member continuously exerts force on the pushing block to bias against the abutment surface of the outer tube, creating a self-locking mechanism that prevents accidental extension during storage and transport.
Solution Approach 2:
The retractable handle assembly with outer tube and pushing block creates a dynamic positioning system. The pushing block can move between positions under spring force, automatically adjusting to maintain the collapsed state. When the luggage body is collapsed, the pushing block is forced by the spring member to abut against the abutment surface, dynamically maintaining the compact configuration.
2Stability of the object's composition
If supplementary supporting structure is added to support the extended position, then the luggage body is positively supported, but the device complexity increases
Solution Approach 1:
The retractable handle assembly with outer tube and pushing block serves multiple functions: it provides structural support for the extended luggage body position, acts as a positioning mechanism through the abutment surfaces, and eliminates the need for separate supporting structures. The same components that enable retraction also provide extension support.
Solution Approach 2:
The patent merges the supporting function with the existing retractable handle assembly. The outer tube and pushing block, originally designed for retraction, are configured with abutment surfaces that simultaneously provide positive support in the extended position, combining multiple functions into a single integrated mechanism.
3Extent of automation
If spring-loaded pushers are used to bias the luggage body between positions, then automatic positioning is achieved, but the device complexity increases
Solution Approach 1:
The spring member continuously exerts force on the pushing block to automatically maintain the collapsed position. This self-actuating mechanism eliminates the need for manual intervention or complex control systems, achieving automatic positioning through simple elastic force.
Solution Approach 2:
The pushing block acts as an intermediary element between the spring member and the outer tube. It translates the continuous spring force into positional control by abutting against the abutment surface, providing automatic positioning without requiring direct spring-to-structure connection.
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 convenient and secure folding and unfolding of the luggage without additional support, ensuring the collapsed state is maintained without external locking and providing stable support in the extended position.
Implementation Method 1
a spring member stopped between the pushing block and one respective base block to force the pushing block into abutment against the bottom end of the respective outer tube
Data Source
AI summary
A folding collapsible luggage includes a folding collapsible luggage body selectively set between a collapsed position and an extended position, two base blocks fixedly mounted at the bottom side of the folding collapsible luggage body, a retractable handle assembly including two outer tubes fastened to the folding collapsible luggage body and respectively pivotally connected to the base blocks, and two spring-loaded pushers respectively mounted in the base blocks and abutted against the respective bottom ends of the outer tubes for facilitating biasing of the folding collapsible luggage body between the collapsed position and the extended position and stopping the folding collapsible luggage body in the collapsed or extended position positively.