具有限位功能的高紧密性汽车天窗导轨
Through an innovative linkage design of the clamping friction of ceramic plates and friction plates and sealing components, the problem of uneven sliding and poor limiting effect of automotive sunroof guide rails under long-term use and high-temperature environments has been solved, achieving smooth opening and closing, enhancing sealing and lubrication effects, and reducing usage costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO CHANGYANG MACHINERY IND CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing automotive sunroof guide rails are prone to deformation of the active guide block under prolonged use and high-temperature environments, resulting in poor limiting effect, uneven sliding, abnormal noise, and reduced lubrication, which affects the normal opening and closing of the sunroof.
The active guide block is smoothly decelerated by using the clamping friction between ceramic plates and friction plates. Combined with the innovative linkage design of sealing components and limiting units, the active guide block is smoothly decelerated by using the clamping friction between ceramic plates and friction plates. The release of lubricating fluid is automatically adjusted by using microporous copper-based gaskets to ensure smooth sliding and sealing.
The problem of deformation and poor limiting effect of the active guide block has been solved, enabling smooth opening and closing of the sunroof, enhancing sealing and lubrication, and reducing operating costs.
Smart Images

Figure CN120503577B_ABST