Rear Window Shade Guide Layout for Lighter Hatchback Rear Flaps
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Solution Overview
Problem
Existing vehicles with steep rear hatches lack an efficient and space-saving solution for shading and visibility protection devices that can be easily integrated into the rear flap without compromising the functionality of the rear flap's opening mechanism.
Innovation Solution
A shading and visibility protection device is mounted on the vehicle body via a lateral guide, allowing the protection element to be displaced laterally, saving structural space in the rear flap and enabling a lighter design, with an optional electric drive for easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the shading device is accommodated in the rear flap trim, then the rear flap can provide shading protection, but the structural space in the rear flap is increased and the rear flap becomes heavier
Solution Approach 1:
The patent extracts the shading device from the rear flap structure and relocates it to the body structure. The lateral guide is mounted on the body instead of the rear flap, and the shading element is disposed of in the body structure, separating the shading function from the rear flap assembly. This extraction reduces the rear flap weight while maintaining shading protection capability.
2Object-affected harmful factors
If the shading device is accommodated in the rear flap trim, then the rear flap can provide shading protection, but the structural complexity and space requirements in the rear flap are increased
Solution Approach 1:
The patent removes the complex shading mechanism from the rear flap trim and relocates it to the body structure. The lateral guide and shading element are mounted on the body, eliminating the need for integrated shading mechanisms in the rear flap assembly, thereby simplifying the rear flap structure.
Solution Approach 2:
The patent introduces a lateral guide as an intermediary component mounted on the body to support and guide the shading element. This intermediary structure provides the necessary support for the shading device without requiring complex integration into the rear flap assembly, simplifying the overall system architecture.
3Ease of operation
If the rear flap is made lighter by removing the shading device, then the opening and closing operation is easier, but the shading protection function must be maintained elsewhere
Solution Approach 1:
The patent extracts the shading device from the rear flap and relocates it to the body structure, reducing the rear flap weight and improving ease of operation. The shading element is mounted on the body via a lateral guide, ensuring the protection function is maintained independently of the rear flap assembly.
Solution Approach 2:
The patent relocates the shading device from the rear flap dimension to the body structure dimension. By mounting the lateral guide and shading element on the body instead of the rear flap, the system maintains shading protection while decoupling it from the rear flap assembly, allowing the rear flap to be optimized for ease of operation.
Data Source
AI summary
A motor vehicle has a shade and/or visibility protection device for a rear window and a rear flap. The rearflap is pivotally attached or secured to a body of the motor vehicle. The shade and/or visibility protection device has a shade and/or visibility protection element which is arranged, mounted, or secured to the rear flap in a movable manner with respect to the rear window. A lateral guide is provided for the shade and/or visibility protection element, the lateral guide being arranged on the body, i.e. a non-pivotal body part in contrast to the rear flap. The lateral guide is used to laterally support the shade and/or visibility protection element when the element is being moved or is in a use position so as to partly or completely cover the rear window.