Power slide window

A power slide window, comprising:

• a window glass pane having an opening formed therein;
• a slide panel slidably provided on the window glass pane so as to open and close the opening;
• a drive source for slidingly driving the slide panel;
• an upper drive cable connected to an upper part of the slide panel and extending from the slide panel in a lateral direction along a panel surface of the window glass pane;
• a lower drive cable connected to a lower part of the slide panel and extending from the slide panel in the lateral direction along the panel surface of the window glass pane;
• a first pulley configured to be rotatably driven by the drive source to wind and unwind the upper drive cable, the first pulley having an outer circumferential surface, a rear end surface and a front end surface;
• a second pulley configured to be rotatably driven by the drive source to wind and unwind the lower drive cable, the second pulley having an outer circumferential surface, a rear end surface and a front end surface;
• and
• a coupling structure configured to join the first pulley and the second pulley to each other at a relative angular relationship selected at a time of assembly;
• wherein the outer peripheral surface of the first pulley is provided with a single first helical groove having one end opening out at the rear end surface and another end opening out at the front end surface, the rear end surface and the front end surface of the first pulley are each provided with a first extension groove extending from the corresponding open end of the first helical groove, the outer peripheral surface of the second pulley is provided with a single second helical groove having one end opening out at the rear end surface and another end opening out at the front end surface, and the rear end surface and the front end surface of the second pulley are each provided with a second extension groove extending from the corresponding open end of the second helical groove,
• wherein the upper drive cable includes a pair of upper cables, and the lower drive cable includes a pair of lower cables, the upper cables and the lower cables being each provided with one end connected to a corresponding lateral end of the slide panel, and another end connected to a corresponding one of the first extension grooves of the first pulley and the second extension grooves of the second pulley, and
• wherein the first pulley is configured to wind and unwind the two upper cables in a mutually complementary manner while the second pulley is configured to wind and unwind the two lower cables in a mutually complementary manner.