| 摘要 |
The door stop comprises a fluid circuit with a cylinder (1) housing a piston (2), a by-pass circuit (3) connecting the two chambers (11,12) and a pivoting flap (332) which moves between a closed position (I0) which prevents flow of fluid between the chambers and open positions (I1, I2). A calibrated catch (34) is attached to the flap and retains the flap in the closed position until a predetermined pressure difference is exceeded due to a force applied to the door which moves the flap into an open position and allows fluid passage between the two chambers. When the force is removed, a spring bias (36) returns the flap to the closed position and prevents the door from further movement. |
