Vehicle Door Beam Bracket Lever Lock Integration
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Solution Overview
Problem
Existing vehicle door structures fail to maintain rigidity and prevent opening during side contact, as they often require complex and bulky connection parts to manage impact loads effectively.
Innovation Solution
A vehicle door configuration featuring a beam extending inside the door in the front-rear direction, coupled with a lever lock bracket and beam bracket, which restricts the door latch mechanism's operation during side contact, maintaining engagement with the vehicle body and dispersing contact energy through a robust skeletal structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a beam is extended inside the vehicle door to absorb impact energy during side contact, then the door's rigidity against side contact is improved, but the device complexity increases due to additional connection parts like lever lock brackets and beam brackets
Solution Approach 1:
The lever lock bracket and beam bracket are merged into a single integrated component that performs multiple functions: it connects the beam to the inner panel, provides the lever lock mechanism to restrict door latch operation during side contact, and offers structural support for energy absorption. This merging eliminates the need for separate connection parts, reducing device complexity while maintaining the required rigidity and safety functions.
Solution Approach 2:
The integrated bracket structure serves multiple functions simultaneously: it acts as a structural support element for the beam, provides the lever lock mechanism to prevent door opening during impact, and serves as a connection point between the beam and inner panel. This multi-functionality reduces the total number of components needed while achieving the desired rigidity and safety performance.
2Reliability
If a restricting member is added to prevent displacement of the rod that releases engagement, then the reliability of maintaining engagement during side contact is improved, but the device complexity increases
Solution Approach 1:
The restricting function is merged into the integrated lever lock bracket structure. The bracket itself provides the mechanical restriction that prevents the rod from displacing and releasing the door latch engagement during side contact. This eliminates the need for a separate restricting member, maintaining reliability while reducing device complexity.
Solution Approach 2:
The bracket structure automatically performs the restricting function through its own geometric configuration and mechanical design. When side contact occurs and the beam deforms, the bracket's structure inherently prevents rod displacement without requiring additional active control mechanisms or separate restricting components. The system uses its own structural properties to achieve the safety function.
Data Source
AI summary
A vehicle door includes a beam, an inner panel, a lever lock bracket, and a beam bracket. The beam extends inside the vehicle door in a front-rear direction of a vehicle. The inner panel includes an inner plate. The lever lock bracket is configured to restrict an operation of the door latch mechanism when contact from a side of the vehicle occurs. The beam bracket includes a front vertical wall surface and a rear vertical wall surface. The lever lock bracket is disposed on a vehicle front side of the beam bracket. The rear vertical wall surface of the beam bracket is provided toward an outer side in a vehicle width direction of the vehicle. The front vertical wall surface of the beam bracket includes an inclined surface inclined on the vehicle front side toward the outer side in the vehicle width direction.