Invisible Sliding Door Link Structure for Vehicle Body
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Solution Overview
Problem
The existing sliding door systems for vehicles are complicated by the need for a rail structure, which affects the vehicle's appearance and imposes design and space restrictions.
Innovation Solution
A six-bar link structure is introduced, comprising a door bracket, body bracket, main arm, first link, second link, and third link, which form a combination of parallelogram and non-parallelogram movements, allowing the sliding door to operate without a rail, using a driver with a motor and sector gear for tilting and sliding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rail structure is used to enable sliding door operation, then the door can be opened and closed, but the vehicle body structure becomes complicated and the appearance is deteriorated
Solution Approach 1:
The patent removes the traditional rail structure from the vehicle body and extracts only the essential sliding function. Instead of using a rail mounted on the vehicle body, the invention uses a link mechanism that achieves sliding door operation without requiring the rail structure, thereby simplifying the vehicle body structure while maintaining door operability.
Solution Approach 2:
The patent replaces the traditional rail-based mechanical system with a link mechanism system. The link mechanism uses a series of connected arms and joints (including parallelogram and non-parallelogram linkages) to achieve the sliding motion, substituting the rail-guided system with a more compact and aesthetically pleasing alternative.
2Ease of operation
If a center rail is provided on the outer surface of the vehicle body, then the sliding door can be operated, but the appearance of the vehicle is deteriorated
Solution Approach 1:
The patent removes the center rail from the outer surface of the vehicle body, extracting only the essential guiding function. The link mechanism achieves the same operational guidance without requiring visible external rails, thereby preserving the vehicle's appearance while maintaining sliding door functionality.
3Ease of operation
If a rail structure is used, then the sliding door can be opened, but design restrictions are increased in the vehicle
Solution Approach 1:
The patent replaces the rail-based mechanical system with a link mechanism that offers greater design flexibility. The link mechanism can be configured in various arrangements (parallelogram and non-parallelogram linkages) to accommodate different vehicle designs and door configurations, thereby reducing design restrictions while maintaining door opening functionality.
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
This solution enables the sliding door to open and close without a visible rail, improving design flexibility and space utilization, allowing easier access in narrow spaces while maintaining the advantages of the prior art.
Implementation Method 1
The driver may include a motor and a sector gear having one side connected to the motor and the other side connected to the main arm
Implementation Method 2
a sector gear having one side connected to the motor and the other side connected to the main arm
Implementation Method 3
The first link, the third link, the main arm, and the body bracket may form a parallelogram, and the second link, the door bracket, the main arm, and the third link may form a non-parallelogram
Implementation Method 4
a main arm having one end rotatably connected to one side of the door bracket and the other end rotatably connected to one side of the body bracket
Implementation Method 5
The first link, the third link, the main arm, and the body bracket may form a parallelogram
Data Source
AI summary
An invisible sliding door link structure includes a door bracket disposed at an inner surface of a door sliding part of a vehicle body to open or close, a body bracket provided in an invisible slider to slide the door, a main arm with one end connected to one side of the door bracket and the other end connected to one side of the body bracket, a first link having one end rotatably connected to the other side of the body bracket, a second link having one end rotatably connected to the other end of the first link and the other end connected to the other side of the door bracket, and a third link having one end rotatably connected to one side of the main arm and the other end connected to a hinge point at which the first and second links are connected to each other.