ROLL CONTROL DEVICE OF A VEHICLE CURTAIN

摘要

A roll control device of a vehicle curtain is mounted on a receiving housing and is connected to a curtain rod for wrapping a curtain fabric. The roll control device has a cover, a gear set mounted in the cover, and a one-way transmission assembly and a damping member respectively mounted on a first gear and a second gear of the gear set. The damping member provides rotational resistance to the first gear. When expanding the curtain fabric, with the one-way transmission assembly, the curtain fabric can be easily drawn. When retracting the curtain fabric, with the torsional resistance, the curtain fabric can be smoothly and gently wrapped on the curtain rod without causing noise and excessive vibration.

主权项

1. A roll control device of a vehicle curtain comprising:
a cover having a mounting chamber; a gear set mounted in the mounting chamber of the cover and including
a first gear rotatably mounted in the mounting chamber of the cover; anda second gear rotatably mounted in the mounting chamber of the cover and meshing with the first gear; a one-way transmission assembly mounted on the second gear and having
a transmission member having
a pivot portion formed on one of two opposite ends of the transmission member and rotatably mounted in the second gear; anda shaft portion formed on the other end of the transmission member; anda torsion spring mounted around the pivot portion of the transmission member and having
a connecting end securely connected to the second gear; anda free end, and a damping member mounted in the first gear, providing torsional resistance to the first gear, and having a fixing protrusion, the fixing protrusion protruding out of the first gear; wherein the second gear is connected to the transmission member via the torsion spring; and the transmission member selectively rotates forward or backward to drive the torsion spring to selectively wrap tightly around the transmission member and drive the second gear, or to drive the torsion spring to be loosened from the transmission member and free from driving the second gear.