Rotatable Center Bar Sealing Assembly for Vehicle Door
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In vehicles with opposite-type swing doors and no center pillar, the air-tightly sealing weather strips between the front and rear doors overlap when opened and closed, leading to wear and compromised sealing, making it difficult to maintain airtightness and allowing foreign substances to enter the vehicle.
Innovation Solution
A swing-type sealing assembly featuring a rotatable center bar with sealing members and an interlocking mechanism that allows the center bar to rotate opposite to the door's opening/closing direction, ensuring it remains spaced apart when the door is open and in close contact when closed, preventing interference and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If weather strips are installed on both the front door and rear door to achieve air-tight sealing, then sealing performance is improved, but the weather strips overlap and wear during door operation, compromising reliability
Solution Approach 1:
The invention extracts the sealing function from the traditional weather strip and relocates it to a sealing member mounted on the center bar. This center bar structure is rotatably connected to the rear door and contacts the front door to provide sealing, thereby eliminating the overlap problem between weather strips on adjacent doors while maintaining air-tight sealing performance.
Solution Approach 2:
The center bar with rotating sealing member acts as an intermediary element between the front door and rear door. Instead of having weather strips on both doors that would overlap, the sealing function is mediated through the center bar mechanism that rotates to maintain contact and sealing without interference from the front door's weather strip.
2Reliability
If the center bar is kept in close contact with the door to ensure sealing, then air-tightness is improved, but friction and wear increase during door operation
Solution Approach 1:
The sealing member on the center bar is designed to rotate dynamically during door operation. When the door opens or closes, the center bar rotates in the opposite direction, allowing the sealing member to maintain continuous contact with the door surface for air-tight sealing while the rotation mechanism reduces static friction and wear by distributing contact forces.
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
Enhances air-tight sealing performance between the front and rear doors, allowing them to be opened and closed regardless of order, reducing friction and wear, and maintaining airtightness without compromising sealing integrity.
Implementation Method 1
The rotary shaft is provided with an elastic member for elastically supporting the center bar when the guide pin is detached from the guide slot
Data Source
AI summary
A sealing assembly for a vehicle door may include a center bar rotatably installed on at least any one of a rear end of a front door and a front end of a rear door; a sealing member for sealing between the center bar and the rear end of the front door and between the center bar and the front end of the rear door; and an interlocking member for rotating the center bar in the direction opposite to the rotation direction of a door, among the front door and the rear door, on which the center bar has been installed so that the center bar is spaced apart from a door on which the center bar has not been installed when the door is opened or is in close contact therewith when the door is closed, when the door on which the center bar has been installed is opened or closed.