Sab Nife Ab

Sab Wabco Holdings, B.v.

Sab Wabco Ab

Sab Wabco Holdings Ab

Anders O Stjarne

Brake force is transmitted between a single axially movable push rod (6) and a brake block holder (3) by an intermediate force transmission member (22) to accommodate for movements along the wheel axis. This intermediate member (22) has cylindrical surfaces cooperating with both the block holder and the push rod end. The cylindrical surface (22') of the member (22), which cooperates with the brake block holder portion (21), is arcuate with its circle center coinciding with the center for the cylindrical push rod end (6'). A shackle (24) held on the brake block holder is biassed by springs (28) forward toward a brake application direction to retain and frictionally engage protrusions (23) extending from the actuator push rod (6).

Thrust force transmission device at a brake actuator

A rail vehicle brake actuator has a brake block holder (3) suspended therefrom (so as to be laterally movable during braking) by hangers (5) in the form of leaf springs. The hangers are rotatably attached to the lower end of the brake block holder by a stiff lower shaft (8) and to an actuator bracket (2) by pivot joints on a rotatable upper shaft (7).

Rail vehicle brake actuator with a brake block holder

A rail vehicle brake actuator is provided with leaf spring hangers (4, 5) to laterally move to follow axial movement of wheels during braking. The hangers are rotatably attached to both a brake block holder and a shaft 7 on an actuator bracket (2). Rotary braking movement is provided by pivot joints having rubber O-rings and washers held together under prestress. The leaf spring hangers pivot laterally to follow axial wheel movement.

A railway vehicle brake block holder (11) for a brake unit (1) with brake block hangers (9) pivotally attached to a fixed part (8) of the unit and to the brake block holder. In order primarily to obtain a very compact design the brake block hangers (9) are pivotally attached to the lower part of the brake block holder (11) and to brackets (8) on the unit constituting a lateral guiding for the holder. The two hangers (9) together with two inserts (13) are held together as a strong yoke by a screw (12). Means (14-18, 22, 23) are provided for obtaining a self-adjusting force transmitting connection between the only axially movable brake unit push rod (3) and the brake block holder (11).

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Loddekopinge, Sweden

Anders O Stjarne