JPS62199541U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a vertical side view showing an example of the torque limiting device according to the present invention, FIG. 2 is an enlarged view of the main parts of FIG. 1,
FIG. 3 is a longitudinal sectional side view showing deformation of the annular surface of the device shown in FIG. 1.

Claims (1)

[Scope of utility model registration request] Power transmission between the first rotating element and the second rotating element is performed by a ball key interposed between these elements, and a pressure spring that holds the ball key in an activated state is connected to the first rotating element. A seat is provided on the second rotating element that is received within the upper radial hole and receives a portion of the ball key, the second rotating element being able to effect axial movement relative to the first rotating element. In the format set up as follows,
When the transmitted torque exceeds a predetermined value, the ball key, which is moved to a floating state while compressing the spring against the force exerted by the pressing spring, moves the second rotating element in the direction toward the first rotating element. A transmission torque limiting device in a shaft coupling, characterized in that an automatically moving conical surface and an annular surface with a flat or concave cross section following the conical surface are provided on a second rotating element.