Power window apparatus

• US 5,012,613 A
• Filed: 02/20/1990
• Issued: 05/07/1991
• Est. Priority Date: 02/22/1989
• Status: Expired due to Fees

• Current Assignee: Jidosha Denki Kogyo Kabushiki Kaisha (Mitsuba Corporation)
• Original Assignee: Jidosha Denki Kogyo Kabushiki Kaisha (Mitsuba Corporation)
• Inventors: Sekine, Shuji
• Primary Examiner(s): Smith, Gary L.
• Assistant Examiner(s): Milano, Michael J.
• Application Number:
  US07/481,401
• Time in Patent Office: 441 Days
• Field of Search: 49/362, 49/349, 49/352
• US Class Current: 49/362
• CPC Class Codes: B60J 1/17 vertically
• CPC Class Codes: E05F 11/405 for vehicle windows
• CPC Class Codes: E05F 15/689 specially adapted for vehicle windows

Abstract

A power window apparatus for opening and closing a curved window glass having a comparatively large curvature in the direction of its curvature is provided with a fixedly mounted reversible motor, a curved screw having curvature nearly equal to the curvature of the curved window glass and fixed in parallel to the curved window glass, and a movable unit fitted onto said curved screw and connected to the motor and said curved window glass. A flexible drive shaft transmits the rotation of the motor to a worm gear in mesh with a worm wheel disposed in threaded connection on the curved screw to move the movable unit along the length of the screw.

Claims

1. A power window apparatus for driving a curved window glass in an opening and closing direction along the curvature of said curved window glass comprising:

support means having a curved window glass movably mounted thereon;

a reversible motor fixedly mounted on said support means;

a curved screw threaded rod having a curvature substantially equal to the curvature of said curved window glass and fixedly mounted on said support means in parallel with said curved window glass;

movable means connected to said curved window glass and engaging said curved screw threaded rod for movement along said rod; and

means connected to said motor and said movable means for driving said movable means along said curved screw threaded rod upon operation of said motor for raising and lowering said curved window glass.

2. A power window apparatus as set forth in claim 1, wherein said movable means includes a worm wheel having female screw threads engaged with said curved screw threaded rod, a worm gear connected to a flexible shaft and disposed in engagement with said worm wheel for rotating said worm wheel to move said movable means along said rod to raise and lower said curved window glass.