Sliding Sealing Assembly for Pillarless Vehicle Door
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Solution Overview
Problem
In vehicles without a center pillar, the air-tight sealing between opposite-type swing doors is compromised due to interference between the front and rear doors, leading to difficulties in opening and closing the doors and potential damage to the weather strip, allowing foreign substances to enter the vehicle.
Innovation Solution
A sliding-type sealing assembly is introduced, where a sealing slider is installed on either the rear end of the front door or the front end of the rear door, allowing it to slide into the other door when opened and retract for close contact when closed, preventing interference and ensuring air-tight sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rear door is opened and closed while the front door is closed, then the rear door can be operated independently, but the weather strip and door components interfere with the front door causing abrasion and potential damage
Solution Approach 1:
The sealing member is designed to dynamically change its position based on door operation state. It protrudes from the rear door when the front door is closed to maintain sealing contact, and retracts into the rear door when the front door is opened to avoid interference. This dynamic positioning allows independent door operation while preventing weather strip abrasion and damage.
2Reliability
If a center pillar is installed to seal the gap between doors, then air-tight sealing is improved, but the sense of openness and ease of entering/exiting the vehicle is reduced
Solution Approach 1:
The sealing function is segmented from the fixed center pillar structure and assigned to a movable sealing member on the rear door. This allows the sealing function to be maintained without requiring a permanent structural divider, thus preserving the sense of openness while achieving air-tight sealing when needed.
Solution Approach 2:
The sealing member's position parameter is changed dynamically - it protrudes when the front door is closed to provide air-tight sealing, and retracts when the front door is opened. This parameter change allows the system to alternate between sealing mode and open mode, maintaining both air-tightness and sense of openness as needed.
3Reliability
If the opening and closing order of doors is predetermined, then interference between doors is avoided, but user convenience is reduced due to sequence constraints
Solution Approach 1:
The sealing member's dynamic positioning capability enables the rear door to be operated independently regardless of front door state. The sealing member automatically adjusts its position based on whether the front door is closed or opened, eliminating the need for predetermined opening/closing sequences while maintaining smooth operation and preventing interference.
Data Source
AI summary
A sealing assembly for a door of a vehicle includes a housing provided on the door, a sealing slider retractably mounted in the housing, a drawing-out device for urging the sealing slider away from the housing, an inserting device for urging the sealing slider into the housing, and a weather strip for air-tight sealing with the sealing slider when the door is closed, where the drawing-out device includes an operating lever rotatably installed on the housing to push an end portion of the sealing slider away from the housing and a support to rotate the operating lever in response to closing of the door, where the sealing slider is slidably movable between a first door and a second door.