Switching device for safety cut-out valve has counter-bearing elements of rotary switch organ acting on latch elements of latch mechanism via rollers supported in sleeve-shaped roller cage

摘要

The switching device uses a rotatable hollow switch organ, its inner mantle surface provided with axial counter-bearing elements, cooperating with latch elements (23) for the latch mechanism for the valve plate shaft (K) via diametrically opposing rollers, supported by a rotatable sleeve-shaped roller cage (7), for transmission of radial switching forces. The latch elements, rollers and counter-bearing elements contact one another at along a line (C-C) passing through each of their centres, perpendicular to the rotation axis (P) of the valve plate shaft.