Sliding Door Guide Mechanism with Overlapping Rails
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Solution Overview
Problem
The existing sliding door device faces difficulties in smooth movement due to the separation of front and back guide rails, which leads to a rotation moment and load application, making it challenging to move the sliding door smoothly, especially when the guide rail direction changes, such as in circular arc guides.
Innovation Solution
An opening and closing mechanism with guide members and support members that allow the sliding door to move in a double-sliding manner, featuring rolling elements and overlapping guide members to reduce friction and rotation moments, enabling smooth movement by distributing the load effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If front and back guide rails are provided separated from each other, then the sliding door can be supported structurally, but a rotation moment is generated by the weight of the sliding door causing load in the width direction, making it difficult to move smoothly at guide rail direction changes
Solution Approach 1:
The patent merges the front guide rail and back guide rail into a single integrated guide rail structure. This eliminates the separation that caused rotation moments, allowing the sliding door to move smoothly without generating unwanted loads in the width direction, particularly at curved sections where direction changes occur.
2Strength
If guide rails are separated into front and back positions, then structural support is provided, but the running body receives rotation moment from sliding door weight making smooth movement difficult
Solution Approach 1:
By combining the front and back guide rails into one integrated structure, the patent eliminates the rotational instability caused by separated rails. This merger maintains structural support strength while ensuring reliable smooth movement by preventing rotation moments from acting on the running body.
3Stability of the object's composition
If separate guide rails are used, then the sliding door mechanism can be structurally supported, but load is applied to the running body in the width direction of the guide rails
Solution Approach 1:
The integration of front and back guide rails into a single unified structure eliminates the width-directional load separation issue. This allows the running body to move without experiencing unwanted lateral forces, as the single guide rail provides centralized support that aligns with the direction of motion.
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
The mechanism allows for smooth and easy movement of the sliding door, reducing friction and rotation moments, thereby improving the operability and stability of the sliding door system.
Implementation Method 1
Each of the first connecting portion, the second connecting portion, the third connecting portion and the fourth connecting portion has a rolling element provided at a side where they apply a load to the guide members
Data Source
AI summary
The opening and closing mechanism for opening and closing bodies has a first opening and closing body, a second opening and closing body, a first support member, a second support member, a first and second guide member, wherein a first and a second guide member intermediate portion are disposed to have an overlapping region, in the overlapping region, one of the first guide member intermediate portion and the second guide member intermediate portion is arranged, with respect to the other of the first guide member intermediate portion and the second guide member intermediate portion, in a direction to which a load is applied, and each of the first to fourth connecting portions has a rolling element provided at a side so as to apply a load toward toe guide members.