Sliding Door Wire Guide Layout to Avoid Step and Lock Arm Interference
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Solution Overview
Problem
The existing wire guide bodies in sliding door systems are prone to being stepped on when the door opens, as they bulge above the step, and routing them below the step causes interference with the lock arm's movement path, while routing them between the step and the door is not effective due to narrow space and potential link member interference.
Innovation Solution
A wire guide device with a vehicle body-side and door-side bracket system, where the wire guide body includes a vehicle body-side guide portion routed above or at the step height and a door-side guide portion routed below, using a relay link member to maintain a height difference and prevent curvature towards the step, with rotatable coupling portions to allow flexible deformation during door opening and closing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wire guide body is routed above the step, then it is easily accessible and installed, but it bulges above the step when the door opens causing safety hazards
Solution Approach 1:
The wire guide body is routed in the vertical dimension below the step surface, transitioning from a horizontal routing above the step to a vertical routing underneath it. This dimensional change allows the wire guide to avoid the hazardous area while maintaining functional connectivity between the vehicle body and sliding door.
2Object-affected harmful factors
If the wire guide body is routed below the step, then it prevents stepping hazards, but it interferes with the lock arm's movement path
Solution Approach 1:
The wire guide body is divided into multiple link members that can independently articulate and change configuration. This segmentation allows the wire guide to navigate around the lock arm's movement path by flexing and reconfiguring its shape, preventing interference while maintaining routing below the step.
Solution Approach 2:
The wire guide body transitions from a static rigid structure to a dynamic articulated structure with multiple movable link members. This dynamic configuration allows the wire guide to adapt its shape in real-time to accommodate the lock arm's movement, avoiding interference while maintaining its position below the step.
3Object-affected harmful factors
If the wire guide body is routed between the step and the door, then it prevents stepping hazards, but the narrow space causes link members to interfere with each other when curved
Solution Approach 1:
The wire guide body is designed with different local configurations - the link members have specific articulation capabilities and dimensions optimized for the narrow space between the step and door. Each link member's geometry and movement range are tailored to the local spatial constraints, preventing interference while maintaining the routing below the step surface.
Data Source
AI summary
A wire guide body includes: a vehicle body-side guide portion having a configuration in which a plurality of vehicle body-side link members are coupled so as to form a string and to be capable of being curved as seen in a plan view, the vehicle body-side guide portion being coupled to a vehicle body-side bracket; a door-side guide portion having a configuration in which a plurality of door-side link members are coupled so as to form a string and to be capable of being curved as seen in a plan view, the door-side guide portion being coupled to a door-side bracket; and a relay link member including a vehicle body-side coupling portion that is coupled to the vehicle body-side guide portion, and a door-side coupling portion that is disposed at a position lower than the vehicle body-side coupling portion and that is coupled to the door-side guide portion.