PURPOSE: To effectively prevent rapid wear and damage of an Oldham's coupling, to reduce the size of a device, and to reliably improve durability and a life.
CONSTITUTION: A slider 19 is slidably disposed between a casing 1 and the back of the revolving scroll 9 and slide displacement of a slider 19 is regulated to the directions of two axes (an X-axis and an Y-axis) by an X-axis guide 17 and an Y-axis guide 18. The through-holes 19B of the slider 19 is brought into rolling contact with the slide surface 3A of a flange part 3 and the slide surface 14B of a back plate 14. Each of ball bodies 20 formed of a material being more rigid than that of the slider 19 is inserted and each through-hole 19B is filled with grease, not shown. This constitution performs smooth rolling movement of each ball body 20 and remarkably reduces friction resistance between the end faces on both sides of the slider 19 and each slide surface 3A.
KOMAI YUJI
KOBAYASHI YOSHIO
MIHARA HIROYUKI
SUZUKI SHUNJI
