Patents Assigned to Scintilla Aktiengesellschaft
  • Patent number: 4947714
    Abstract: A coupling for a motor operated screwing tool contains three coupling elements of which one is provided on an output shaft, another one on a drive shaft, and a intermediate, one of which is constructed as a coupling ring (8) which is longitudinally displaceable on the output shaft, whereby a spring (4) is arranged between the drive shaft and the coupling ring urges the latter into engagement with the coupling element on the output shaft. A disengagement without rattling and with low wear is achieved after reaching the limiting torque by means of sloping surfaces (2, 116) at the longitudinally displaceable coupling ring (8) and the output shaft, which sloping surfaces (2, 116) cooperate with the spring (4) and an adjustable depth stop on a tool housing (23), and wherein the movement of the coupling ring (8) is defined by means of two shoulders (10, 11) arranged on the output shaft (6).
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: August 14, 1990
    Assignee: Scintilla Aktiengesellschaft
    Inventor: Martin Fluri