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US-20260124887-A1 - LINKAGE MECHANISM TO DRIVE COVER OF CURTAIN CONTAINER OF ELECTRIC SUNSHADE FOR MOTORIZED VEHICLES

US20260124887A1US 20260124887 A1US20260124887 A1US 20260124887A1US-20260124887-A1

Abstract

A linkage mechanism applied to an electric sunshade for motorized vehicles has a linkage unit and an elastic connector. The linkage unit is swingable, between a curtain container and a curtain track, and under a cover of the curtain container. The linkage unit has an arm and a pressed part beside the arm and at the curtain track. The elastic connector is connected between the arm and the cover such that the pressed part is able to be pressed by a sliding block to lower and to restore a position of the pressed part. The elastic connector is configured to pull the cover to close the opening of the curtain container when the arm swings downward. Wherein, the cover rotates upward to open by an elastic torsion force when the sliding block moves upward to detach from the pressed part.

Inventors

  • Paul Lin
  • Hung Ming Yen
  • Yu Hsien CHIEN
  • Tsung Yi Chuang

Assignees

  • MACAUTO INDUSTRIAL CO., LTD.

Dates

Publication Date
20260507
Application Date
20251030
Priority Date
20241107

Claims (18)

  1. 1 . A linkage mechanism to drive a cover of a curtain container of an electric sunshade for a motorized vehicle, the linkage mechanism configured to be assembled to an electric sunshade at a window of a motorized vehicle, disposed between a lower section of a curtain track beside the window and a curtain container under the window; the linkage mechanism connected to a cover, at a top of the curtain container, driven by an elastic torsion force; a strip of a curtain fabric of the electric sunshade configured to be driven by a driving mechanism to go up and down, two cords of the driving mechanism respectively connected to two sliding blocks at two ends of the strip, one of the sliding blocks moving along the curtain track driving the curtain fabric to expand and fold; the linkage mechanism driving the cover to close and open an opening at the top of the curtain container and the linkage mechanism having a linkage unit being swingable, disposed between an end of the curtain container and the curtain track, being under the cover, and having an arm; and a pressed part disposed at a side of the arm and at the lower section of the curtain track; and an elastic connector connected between the arm and the cover such that the pressed part is able to be pressed by the sliding block at one of the two ends of the strip to lower and to restore a position of the pressed part; the elastic connector configured to pull the cover to close the opening of the curtain container when the arm swings downward; wherein, the cover rotates upward to open by the elastic torsion force when the sliding block moves upward to detach from the pressed part.
  2. 2 . The linkage mechanism as claimed in claim 1 , wherein the arm is an elongated rod, is laterally disposed between the lower section of the curtain track and the curtain container, and has two ends; one of the two ends of the arm is connected to the pressed part, and the other one of the two ends of the arm has a pivot portion pivotally connected to a lower section of a wall of the curtain container and is laterally movable; and the elastic connector is connected between the arm and the cover.
  3. 3 . The linkage mechanism as claimed in claim 2 , wherein each of two sides of the lower section of the curtain container has a lateral-guide groove; and the pivot portion is pivotally connected to the lateral-guide groove.
  4. 4 . The linkage mechanism as claimed in claim 3 , wherein the lateral-guide groove at the wall of the curtain container has an inserting hole disposed at an end, of the lateral-guide groove, said end away from the curtain track and having a diameter larger than a width of the lateral-guide groove; a blocking portion is disposed at a terminal end of the pivot portion, has a size larger than the width of the lateral-guide groove, and is configured to be inserted in the inserting hole; and the pivot portion is moveable along the lateral-guide groove, and the blocking portion is restricted at an inner side of the wall of the curtain container.
  5. 5 . The linkage mechanism as claimed in claim 4 , wherein the arm has an assembling portion adjacent to the pressed part and protruding upward; and one of two ends of the elastic connector is connected to the assembling portion, and the other one of the two ends of the elastic connector is connected to the cover.
  6. 6 . The linkage mechanism as claimed in claim 1 , wherein the linkage unit has an arm having two ends, one of the two ends being a pivot end, and the pivot end pivotally connected to the lower section of the curtain track; and an assembling portion disposed at the other one of the two ends of the arm and connected to the elastic connector; and an auxiliary linkage rod having two ends, one of the two ends of the auxiliary linkage rod pivotally connected to the pressed part, the other one of the two ends of the auxiliary linkage rod pivotally connected to the arm and adjacent to the assembling portion.
  7. 7 . The linkage mechanism as claimed in claim 1 , wherein the pressed part has a longitudinal hole passed by a corresponding one of the two cords respectively connected to the two sliding blocks.
  8. 8 . The linkage mechanism as claimed in claim 2 , wherein the pressed part has a longitudinal hole passed by a corresponding one of the two cords respectively connected to the two sliding blocks.
  9. 9 . The linkage mechanism as claimed in claim 3 , wherein the pressed part has a longitudinal hole passed by a corresponding one of the two cords respectively connected to the two sliding blocks.
  10. 10 . The linkage mechanism as claimed in claim 4 , wherein the pressed part has a longitudinal hole passed by a corresponding one of the two cords respectively connected to the two sliding blocks.
  11. 11 . The linkage mechanism as claimed in claim 5 , wherein the pressed part has a longitudinal hole passed by a corresponding one of the two cords respectively connected to the two sliding blocks.
  12. 12 . The linkage mechanism as claimed in claim 6 , wherein the pressed part has a longitudinal hole passed by a corresponding one of the two cords respectively connected to the two sliding blocks.
  13. 13 . The linkage mechanism as claimed in claim 7 , wherein the pressed part has a notch formed at a side of the pressed part, extending from a top to a bottom of the pressed part, and connecting with the longitudinal hole.
  14. 14 . The linkage mechanism as claimed in claim 8 , wherein the pressed part has a notch formed at a side of the pressed part, extending from a top to a bottom of the pressed part, and connecting with the longitudinal hole.
  15. 15 . The linkage mechanism as claimed in claim 9 , wherein the pressed part has a notch formed at a side of the pressed part, extending from a top to a bottom of the pressed part, and connecting with the longitudinal hole.
  16. 16 . The linkage mechanism as claimed in claim 10 , wherein the pressed part has a notch formed at a side of the pressed part, extending from a top to a bottom of the pressed part, and connecting with the longitudinal hole.
  17. 17 . The linkage mechanism as claimed in claim 11 , wherein the pressed part has a notch formed at a side of the pressed part, extending from a top to a bottom of the pressed part, and connecting with the longitudinal hole.
  18. 18 . The linkage mechanism as claimed in claim 12 , wherein the pressed part has a notch formed at a side of the pressed part, extending from a top to a bottom of the pressed part, and connecting with the longitudinal hole.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric sunshade for motorized vehicles, and more particularly to a linkage mechanism of an electric sunshade for motorized vehicles that can synchronize movements of a curtain and a cover of a curtain container of the electric sunshade. 2. Description of Related Art An electric curtain device currently applied to windows of motorized vehicles mainly includes a curtain fabric, a retracting assembly, and a driving mechanism. The driving mechanism drives a strip of the curtain fabric to move along curtain tracks upward extending and fixed at both sides of a window of a motorized vehicle. When the curtain fabric is at a static position, it is retracted into a curtain container under a window glass. A top of the curtain container is equipped with a cover combined with a torsion spring. The cover is connected to two linkage mechanisms allowing the cover to automatically open and close an opening of the curtain container at a top thereof in coordination with expanding the curtain fabric and retracting the curtain fabric. The aforementioned linkage mechanisms can be driven by the driving mechanism. A linking block of each linkage mechanism is disposed at a lower section of a corresponding curtain track and is connected to the cover via a spring. When the curtain fabric and the strip thereof are driven and retracted into the curtain container, the strip presses the linking block and the cover closes the opening of the curtain container to prevent a foreign object from falling into the curtain container. The conventional linkage mechanisms mentioned above are connected to the cover, are driven by the driving mechanism, and cooperate with the torsion spring to open and close the cover in coordination with expanding the curtain fabric and retracting the curtain fabric. However, the two sides of the window of a motorized vehicle are curved and upward extend toward each other. The curtain fabric has a shape with a top narrower than a bottom thereof to correspond to the window in shape. Lateral ends of the curtain container are respectively remote from the curtain tracks. The spring connected between the cover and a corresponding linking block disposed at the lower section of said curtain track biases significantly. Therefore, elastic force provided by the spring can hardly be directly transmitted to the cover. Accordingly, the linking block has difficulty smoothly moving in a corresponding curtain track. The conventional linkage mechanisms cannot easily drive the cover to open and close. To overcome the shortcomings of the conventional linkage mechanism, the present invention provides a linkage mechanism to mitigate or obviate the aforementioned problems. SUMMARY OF THE INVENTION The main objective of the present invention is to provide a linkage mechanism of an electric sunshade for motorized vehicles that can smoothly drive a cover of a curtain container to open and close. The linkage mechanism relates to an electric sunshade for motorized vehicles. The linkage mechanism is assembled to a curtain track, adjacent to a curtain container, and connected to a cover of the curtain container. The linkage mechanism can open and close the cover by being driven by an end of a strip moving along the curtain track. Wherein, the linkage mechanism has a linkage unit and an elastic connector. The linkage unit is swingable, is disposed between an end of the curtain container and the curtain track, under the cover, and has an arm and a pressed part disposed at a side of the arm. The pressed part is disposed at a lower section of the curtain track. The elastic connector is connected between the arm and the cover. The pressed part can be pressed by a sliding block at an end of the strip to lower and to restore a position of the pressed part. The elastic connector is configured to pull the cover to close an opening of the curtain container when the arm swings downward. Wherein, the cover rotates upward to open by an elastic torsion force when the sliding block moves upward to detach from the pressed part. In the linkage mechanism mentioned above, the arm is an elongated rod, is laterally disposed between the lower section of the curtain track and the curtain container, and has two ends. One of the two ends of the arm is connected to the pressed part, and the other one of the two ends of the arm has a pivot portion pivotally connected to a lower section of a wall of the curtain container and being laterally movable. The elastic connector is connected between the arm and the cover. In the linkage mechanism mentioned above, each of two sides of the lower section of the curtain container has a lateral-guide groove. The pivot portion is pivotally connected to the lateral-guide groove. In the linkage mechanism mentioned above, the lateral-guide groove is at the wall of the curtain container and has an inserting hole disposed at an end, of the lateral-gui