Parcel Shelf Covering Device with Integral Hook and Weight Retention
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Solution Overview
Problem
Existing motor vehicle luggage compartment covering devices require sealing or capping elements to keep ties in place, which complicates assembly and aesthetics.
Innovation Solution
The device eliminates the need for sealing elements by using integral hooks and weights with a snap-fit or interference fit mechanism, where the hooks and weights are separate pieces coupled to the ropes during assembly, ensuring they cannot pass through the parcel shelf.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealing or capping elements are used to keep ties in place, then the ties are retained securely, but the assembly process becomes more complex and aesthetics are compromised
Solution Approach 1:
The sealing element and the tie retention function are merged into a single integrated component. The tie retaining element features a U-shaped cross-section that inherently provides both structural support and retention capability, eliminating the need for separate sealing elements and simplifying the overall assembly.
Solution Approach 2:
The sealing function is extracted from the traditional separate sealing element and integrated directly into the tie retaining element structure. This extraction allows the retention mechanism to perform dual functions: mechanical retention and sealing, thereby reducing the total number of components.
2Reliability
If sealing or capping elements are used to keep ties in place, then the ties are retained securely, but the visual appearance is compromised
Solution Approach 1:
The sealing element and the tie retention function are merged into a single integrated component. The tie retaining element features a U-shaped cross-section that inherently provides both structural support and retention capability, eliminating the need for separate sealing elements and simplifying the overall assembly.
3Ease of manufacture
If hooks are inserted into holes with larger diameter, then assembly is easier, but the space between hole edge and ropes requires sealing elements
Solution Approach 1:
The sealing element and the tie retention function are merged into a single integrated component. The tie retaining element features a U-shaped cross-section that inherently provides both structural support and retention capability, eliminating the need for separate sealing elements and simplifying the overall assembly.
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
This simplifies the assembly process, enhances aesthetics, and reduces the risk of disengagement while maintaining the functionality of raising the parcel shelf with the tailgate.
Implementation Method 1
The lower ends of the ties, normally, are defined by weights which tend to keep the ropes outstretched and vertical
Implementation Method 2
The upper ends of the ties are defined by hooks, which are coupled in a releasable manner to the tailgate of the luggage compartment
Data Source
AI summary
A motor vehicle luggage compartment covering device has a parcel shelf defined by a panel hinged to two sides of the luggage compartment about a horizontal axis and having two rear holes; the device also has two ties provided with respective ropes which extend through said holes; the lower ends of the ropes are fixed to two weights; the upper ends, however, are attached to two hooking elements that are hung in a releasable manner to a tailgate of the luggage compartment; for each rope, the upper ends are provided with respective protrusions, which are integral with the ropes and engage respective retaining seats obtained in the hooking elements; the holes of the parcel shelf have a diameter which is higher than that of the protrusions and is lower than the size of the hooking elements.