Sliding Door Striker Retraction for Full-Open Door Restraint
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Solution Overview
Problem
Existing door support devices for vehicles with slide doors often require additional space in the vehicle body, narrowing the interior and underfloor spaces, due to the need for a striker shaft and lock mechanism that interfere with the door's operation.
Innovation Solution
A door support device featuring a striker unit that displaces between a retracted and deployed position, allowing the slide door to fully open without the need for additional space, and a lock mechanism that engages with the striker at the deployed position to restrain the door.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a striker shaft and lock mechanism are installed in the vehicle body to restrain the slide door at the fully open position, then the door can be effectively restrained, but the interior space and underfloor space of the vehicle become narrower in the width direction
Solution Approach 1:
The striker is configured to displace in the front-back direction (longitudinal dimension) of the vehicle rather than occupying space in the width direction (lateral dimension). Specifically, the striker extends in the width direction when retracted against the vehicle body, and displaces forward or backward when deployed, allowing the lock mechanism to engage with the striker at different longitudinal positions without requiring additional width space
Solution Approach 2:
The striker is designed as a movable component that can dynamically change its position between a retracted state (stored against the vehicle body) and a deployed state (displaced outward in the front-back direction). This dynamic displacement allows the striker to clear the path of the opening/closing door while maintaining the restraint function when engaged by the lock mechanism
2Reliability
If the striker is always deployed outward to enable door restraint, then the door can be restrained at the fully open position, but the striker may interfere with the door operation during opening and closing
Solution Approach 1:
The striker transitions from a static deployed position to a dynamic system that can retract and deploy as needed. The striker is displaced to the retracted position when the door is opening or closing, eliminating interference, and is deployed when the door reaches the fully open position to enable restraint by the lock mechanism
Solution Approach 2:
The striker is retracted in advance before the door reaches the fully open position, ensuring that the door can open or close without interference. The striker is then deployed at the appropriate moment when the door is at the fully open position, allowing the lock mechanism to engage and restrain the door
Data Source
AI summary
PROBLEM: To provide a door support device that can suppress narrowing of space in a width direction of a vehicle due to the door support device.SOLUTION: The door support device includes a striker unit to be installed in a vehicle body, a door bracket extending inward in the width direction from a slide door, and a lock mechanism to be supported by the door bracket. The striker unit includes a striker to be displaced between a retracted position and a deployed position. The lock mechanism restrains the slide door to the vehicle body by engaging with the striker located at the deployed position when the slide door is located at a fully open position.