Two-Part Motor Vehicle Trunk Lid with Pivoting Lever Stabilization
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Solution Overview
Problem
Motor vehicle trunks with lower trunk lids often lack stability when open, particularly under load conditions, which can compromise safety and functionality.
Innovation Solution
A two-piece trunk lid system with a pivoting lever and locking components that engage with the vehicle body to stabilize the lower trunk lid in the open position, allowing for the absorption of tensile forces and impact forces through a transverse profile and hook-shaped engagements, enhancing stability and load-bearing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a lower trunk lid is provided in a motor vehicle trunk, then access to the trunk and loading convenience are improved, but stability and load-bearing capability in the open position deteriorate
Solution Approach 1:
The trunk lid is divided into two separate parts: an upper trunk lid and a lower trunk lid. This segmentation allows the lower trunk lid to be opened independently for loading convenience while the upper trunk lid remains closed or is opened separately, providing flexible access without compromising overall structural stability.
Solution Approach 2:
A pivoting lever mechanism is pre-configured to engage with the lower trunk lid when opened. This preliminary action of designing the engagement mechanism in advance ensures that when the lower trunk lid is opened, the pivoting lever automatically provides stabilizing support and load-bearing capability, preventing instability before it occurs.
2Ease of operation
If the lower trunk lid is made lightweight for ease of operation, then opening and closing become easier, but strength and ability to bear load deteriorate
Solution Approach 1:
A pivoting lever acts as an intermediary mechanical element between the lower trunk lid and the vehicle body. This lever transfers and distributes loads from the lightweight lower trunk lid to stronger structural points on the vehicle body, enabling the trunk lid itself to remain lightweight while the system as a whole maintains high load-bearing capacity.
3Stability of the object's composition
If a two-piece trunk lid system with pivoting lever and locking components is added, then stability and load-bearing capability are improved, but device complexity increases
Solution Approach 1:
The pivoting lever mechanism is merged with the existing hinge structure of the lower trunk lid. The locking components are integrated into the same assembly, combining multiple functions (pivoting, locking, stabilizing) into a unified mechanism rather than adding separate independent systems, thereby reducing overall complexity while maintaining stability.
Solution Approach 2:
The pivoting lever serves multiple functions simultaneously: it acts as a hinge for opening/closing the lower trunk lid, provides structural support for stability, enables locking engagement to bear loads, and facilitates easy operation. This multi-functionality reduces the need for separate components, maintaining simplicity while achieving high stability.
Data Source
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AI summary
The invention relates to a motor vehicle with a luggage space, in which the luggage space has a body cutout opening which can be closed off by means of at least one luggage space lid, wherein the body cutout opening (5) can be closed off by means of a two-part luggage space lid which is composed of an upper luggage space lid (6) and a lower luggage space lid (7), wherein the upper luggage space lid (6) can be pivoted upward by an angle ß and the lower luggage space lid (7) can be pivoted downward by an angle a from in each case one closed position (8, 9) into in each case one open position (11), wherein the lower luggage space lid (7) has at least one pivot lever (17) which is arranged such that it can be pivoted by means of a pivot axle (21) which is formed on a lower body section (20), and wherein, in the open position (11) of the lower luggage space lid (7), the pivot lever (17) is in engagement with the lower body section (20).