Luggage Frame Reinforcement via Overlapping Profile Elements
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Solution Overview
Problem
Existing luggage designs face issues with adhesive connections failing under high forces during transportation, such as when being carried by plane, leading to potential detachment of frame elements and compromised durability.
Innovation Solution
Incorporating profile elements on the inside of luggage parts that overlap and reinforce the frame elements, enhancing the adhesive connections and preventing detachment, while maintaining a sleek exterior by avoiding visible reinforcement like rivets or screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If adhesive connections are used to attach frame elements to luggage parts, then the exterior remains sleek and visible reinforcement is avoided, but the connection reliability deteriorates under high forces during transportation
Solution Approach 1:
The solution transitions from a single-layer adhesive connection to a multi-layer structure by adding profile elements that create an overlapping arrangement. This dimensional addition provides mechanical interlocking while maintaining the sleek exterior, as the reinforcement occurs in a different spatial dimension (overlapping layers) rather than adding visible external elements.
Solution Approach 2:
The invention combines different materials and connection methods: frame elements made of metal are attached to plastic luggage parts using adhesive bonds, with profile elements providing additional mechanical reinforcement. This composite approach integrates multiple material properties and connection mechanisms to achieve both aesthetic and structural requirements.
2Strength
If additional reinforcement elements like rivets or screws are used, then the connection strength improves, but the exterior appearance deteriorates due to visible reinforcement
Solution Approach 1:
Instead of adding visible reinforcement elements on the exterior surface, the solution places profile elements in an overlapping dimension between the frame element and luggage part. This internal overlapping structure provides mechanical strength while remaining hidden from the exterior view, preserving the sleek appearance.
Solution Approach 2:
The profile elements are nested within the overlapping region between the frame element and luggage part. This nesting arrangement allows the reinforcement structure to be contained within the existing component boundaries, providing strength without adding visible external elements that would compromise the aesthetic appearance.
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
The solution significantly improves the durability and reliability of luggage connections by counteracting adhesive failure under stress, ensuring the luggage remains securely closed and resistant to external forces without visible reinforcement.
Implementation Method 1
the first frame element is arranged on an edge of the first luggage part and is connected to the luggage part via a first adhesive connection
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
In a piece of luggage (1) with a luggage body (2) comprising at least a first and a second luggage part (4, 6), wherein the first and the second luggage part (4, 6) are pivotable relative to each other so that the luggage body (2) can be opened or closed, and at least a first and a second frame element (16, 18), wherein the first frame element (16) is arranged on an edge (20) of the first luggage part (4) and is connected to the first luggage part (4) via a first adhesive connection (60), and the second frame element (18) is arranged on an edge (22) of the second luggage part (6) and is connected to the second luggage part (6) via a second adhesive connection (62), it is provided thatthat at least a first profile element (24) on an inner side of the luggage body (2) is connected to the first luggage part (4) and at least a second profile element (26) on the inner side of the luggage body (2) is connected to the second luggage part (6), wherein the first profile element (24) at least partially overlaps the first frame element (16) and the second profile element (26) overlaps the second frame element (18), so that detachment of the first adhesive bond (60) between the first frame element and the first luggage part (4) and of the second adhesive bond (62) between the second frame element (18) and the second luggage part (6) is prevented.