Sasib S.p.a.

Ugo Callegari

Maurizio Biagiotti

Claudio Siliani

Giovanni Gritti

An operating device for railroad switches, particularly for high-speed lines. To permit more stable positioning of the blades (A1,A2) and of the frog (C) of the switch, which in high-speed lines are of considerable length, in addition to the switching actuator (1) at the toes of the blades (A1,A2) and to that (3) of the frog (C), there are distributed along the blades (A1,A2) and along the frog (C) one or more further switching actuators (2,3'). The switching actuators (1,2) of the blades (A1,A2) and the switching actuators (3,3') of the frog (C) are of the hydraulic type and are controlled respectively by a hydraulic control unit (4,4').

Operating device for railway switches, particularly for high-speed lines

The invention relates to an outer point lock device for switchpoints, particularly on high-speed railways. This device comprises two point locks (1, 2) associated each with one of the blades (A1, A2) of the switchpoint. Each point lock comprises a box (3) secured to the corresponding stock-rail (C1, C2) and containing two slides (7, 8) parallel to each other. The slides are superposed on each other and slidably guided across the rails. The so-called lock-slide (8) is connected to the respective blade (A1, A2) and carries a lock member (17, 49) to become locked to the box (3) in the closed position of the blade (A1, A2). The lock slide is coupled to the other so-called drive-slide (7) through a coupling device (28, 29; 249, 307) automatically engageable or disengageable as a result of the overlap stroke of the drive-slide (7) with respect to the lock-slide (8). The drive-slides of the two point locks (1, 2) are connected to each other and to a drive or control rod (44). Each drive-slide (7) is provided with a snap lock device (10, 11a, 11b; 45, 11a, 11d) to lock the slide (7) to the box (3) at the two end positions thereof. Each drive-slide (7) is also provided with means (119, 219; 407) for the direct or indirect actuation of the lock member (17, 49) of the corresponding lock-slide (8).

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Bologna, Italy

Ugo Callegari