Patent ID: 7549355
Filing Date: 2009-06-23
Classification: B25J,Y10T

Abstract:
1. A rotary leadthrough of a fourth axle of a Delta robot arm, the rotary leadthrough comprising a housing, a shaft located in an axial leadthrough of the housing and is rotatably supported in the housing, for connection to the robot arm, and at least two openings in the housing which provide direct access into the axial leadthrough from outside the housing for cleaning the axial leadthrough, one of the at least two openings being a flushing opening and one of the at least two openings being a suction opening, the shaft having a reduced diameter extending over a portion of its length, which diameter is less than the diameter of the axial leadthrough in a corresponding region of the axial leadthrough, thereby providing a void between the shaft and the axial leadthrough.