一种帘布卷筒、用于车辆天窗的帘布卷筒结构和车辆
By setting stepped positioning surfaces on the drum body, the zebra stripe problem during curtain winding is solved, achieving a smooth transition and flat surface of the curtain, thus improving the texture of the vehicle interior.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ROX MOTOR TECH CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-07-17
AI Technical Summary
The traditional circular roller structure causes tiny protrusions to form on the fabric as it is rolled up, resulting in a periodic ridge line "zebra stripe" defect when the fabric is fully rolled up.
A step is set at a preset position on the drum body to form a radial positioning surface. The starting end of the curtain abuts against this positioning surface and is fixed by a fastener to ensure that there is no step difference when the curtain is wound. A hollow cavity structure made of aluminum alloy is used.
This achieves a smooth transition of the curtain fabric during the roll-up and unrolling process, avoiding zebra stripe defects, maintaining surface flatness, and enhancing the visual effect of the interior.
Smart Images
Figure CN224510833U_ABST
Abstract
Claims
1. A cord reel, characterized by include: At a predetermined position on the roller body, a step is formed along the radial direction of the roller body. The step extends along the axial direction of the roller body to form a radial positioning surface, which is used to abut the starting end of the curtain fabric.
2. The ply spool of claim 1, wherein, The starting point of the inner diameter of the radial positioning surface and the starting point of the outer diameter of the radial positioning surface are spirally connected along the outer circumference of the drum body.
3. The cord reel of claim 1, wherein, The curtain is fixed to the radial positioning surface by a fastener.
4. The cord reel of claim 3, wherein, The radial height of the step is adapted to the thickness of the curtain and the thickness of the fastener.
5. The cord reel of claim 1, wherein, The drum body is an axially continuous hollow cavity structure.
6. The curtain roll according to claim 1, characterized in that, The axial direction of the radial positioning surface is perpendicular to the radial reference surface of the drum body.
7. The cord reel of claim 1, wherein The drum body is made of aluminum alloy.
8. A shade roll structure for a vehicle sunroof, characterized by, include: The curtain roll as described in any one of claims 1 to 7; The curtain fabric, the starting end of which abuts against the radial positioning surface of the step of the curtain fabric roll.
9. The carcass drum structure of claim 8, wherein, The starting end of the curtain is fixed to the radial positioning surface by a fastener.
10. A vehicle characterized by comprising: include: Skylight; Two guide rails are provided on opposite sides of the skylight; The curtain roll structure for a vehicle sunroof as described in any one of claims 8 and 9, wherein both ends of the roll body of the curtain roll structure are respectively connected to the two guide rails, so that the curtain roll can perform the unfolding and rewinding movement of the curtain of the curtain roll structure along the axial direction of the two guide rails.