Striker Pre-positioning Device Centering Pins
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Solution Overview
Problem
The existing motor vehicle door lock and striker assembly often experiences misalignment issues, leading to stress and deformation of the sash during closure, affecting maneuverability and aesthetics due to perpendicular movement relative to the vehicle's longitudinal axis.
Innovation Solution
A prepositioning device with centering pins on the striker's sole allows precise positioning by sliding into specific openings in the bodywork element, ensuring stable final positioning and eliminating deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the striker is fixed directly to the bodywork element without pre-positioning, then the assembly process is simpler, but misalignment occurs between the striker and the lock causing stress and deformation of the sash
Solution Approach 1:
The patent applies preliminary action by introducing centering pins that protrude from the sole and engage with openings in the bodywork element before final fixation. This pre-positioning mechanism establishes the correct alignment between the striker and lock in advance, preventing misalignment during closure while maintaining a relatively simple overall assembly process.
2Reliability
If the striker is positioned to allow movement during sash closure to accommodate misalignment, then stress on the sash is reduced, but the positioning precision and final alignment are compromised
Solution Approach 1:
The centering pins establish the correct alignment beforehand, ensuring that when the sash is closed, the striker and lock are already properly aligned. This eliminates the need for movement during closure that would cause stress, while maintaining high alignment reliability through the pre-established geometric constraints of the pin-opening interface.
Data Source
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AI summary
The invention relates to a pre-positioning device for a strike plate (10) intended to cooperate with a lock on a motor vehicle door, said strike plate (10) being mounted on a first face (11a) of a substantially flat base (11) having means for fastening to a body panel of the vehicle. The base (11) has, on a second face (11b), at least one centering pin (5) intended to cooperate with an opening in the body panel and capable of allowing movement of the base (11) in at least one direction.