Vehicle Door Striker Mounting Structure for Side-Collision Load Distribution
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Solution Overview
Problem
Existing striker mounting structures for vehicle doors are prone to direct impact deformation during side collisions, which can allow the door to enter the passenger compartment, and may cause the striker to incline or rotate, compromising safety.
Innovation Solution
A striker mounting structure featuring multiple connecting rods with locking portions that distribute the impact force across multiple points on the reinforcement member, preventing direct force application and maintaining the striker's position during collisions, with additional reinforcement from a plate that absorbs impact and disperses force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the mounting structure is fixed directly to the reinforcement, then the impact load is directly applied to the reinforcement, but the reinforcement is easily deformed due to the impact
Solution Approach 1:
The patent divides the force transmission path into multiple segments by introducing connecting rods with locking portions that engage with the reinforcement at multiple discrete points. This segmentation distributes the impact load across multiple locations rather than concentrating it at a single fixed point, reducing localized deformation of the reinforcement while maintaining overall structural strength.
2Device complexity
If only one connecting rod is provided, then the structure is simpler, but the striker may become inclined during collision
Solution Approach 1:
The patent applies local quality by distributing multiple locking portions at different locations on the reinforcement. Each locking portion engages at a specific local point, and the collective arrangement of these distributed locking points provides both structural support and alignment constraint for the striker, preventing inclination while maintaining a reasonable device complexity.
3Strength
If the striker mounting surface is spaced apart from the reinforcement, then the impact force is dispersed, but the mounting structure requires more space
Solution Approach 1:
The patent utilizes the spatial dimension by spacing the striker mounting surface away from the reinforcement in the direction perpendicular to the impact force. This dimensional arrangement allows the connecting rods to transmit force at an angle, dispersing the impact load across multiple reinforcement points while maintaining a compact overall structure that does not excessively increase the mounting structure's volume.
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 structure effectively prevents the door from entering the passenger compartment by distributing collision forces and maintaining the striker's alignment, reducing deformation and enhancing safety by dispersing impact forces across multiple points.
Implementation Method 1
the locking portions of the connecting rods strike a hole wall surface of the insertion hole(s) of the reinforcement. Consequently, the force caused by the collision is not directly, but rather indirectly, applied to the reinforcement
Implementation Method 2
The reinforcement member and the connecting rods move together with the striker, such that the locking portions of the connecting rods strike a hole wall surface of the insertion hole(s) of the reinforcement
Data Source
AI summary
A striker mounting structure is configured to mount a striker on a vehicle body. A hook fixed to a door is hooked to the striker. A reinforcement formed with an insertion hole may be attached to the vehicle body. An outer panel covering a reinforcement may include a striker mounting surface spaced from the reinforcement. A reinforcement member may be fixed to the striker and the striker mounting surface. Two or more connecting rods may extend from the reinforcement member. Each of the connecting rods may include locking portions, which are inserted in the insertion hole formed in the reinforcement.