Arrangement for reducing a rotational speed of a rotating member

An arrangement for reducing a rotational speed of a rotating member, comprising

• a first and second pressure member arranged at a distance from each other and on opposite sides of the rotating member for movement relative to each other between a retracted position and a forward position engaging the rotating member, an adjustment device comprising
• a friction means forming a friction joint with one of the pressure members for maintaining a position relative to one another provided a maximum friction force is not exceeded, and
• a spring means acting on the friction means for separating the pressure members after having been compressed, the spring means having an increasing spring force between a non-compressed state and a totally compressed state
• wherein an intermediate spring force value of the spring means, which corresponds to compression of the spring means to an extent less than the totally compressed state, equals a maximum friction force of the friction joint so that the friction means is forced to move relative to the pressure member, with which it forms the friction joint, due to compression of the spring means to the intermediate spring force value at which the maximum friction force is exceeded, the adjustment device comprises a support portion and the friction means is arranged for movement along the support portion, a first end portion is fixed at a first end of the support portion forming a shoulder for the spring means, and the first pressure part is formed by a movable piston and the second pressure part is formed by a stationary piece, the friction means forms the friction joint with the piston, and the first end portion of the support portion is supported by the stationary piece.

An arrangement for reducing a rotational speed of a rotating member, comprising

• a first and second pressure member arranged at a distance from each other and on opposite sides of the rotating member for movement relative to each other between a retracted position and a forward position engaging the rotating member, an adjustment device comprising
• a friction means forming a friction joint with one of the pressure members for maintaining a position relative to one another provided a maximum friction force is not exceeded, and
• a spring means acting on the friction means for separating the pressure members after having been compressed, the spring means having an increasing spring force between a non-compressed state and a totally compressed state
• wherein an intermediate spring force value of the spring means, which corresponds to compression of the spring means to an extent less than the totally compressed state, equals a maximum friction force of the friction joint so that the friction means is forced to move relative to the pressure member, with which it forms the friction joint, due to compression of the spring means to the intermediate spring force value at which the maximum friction force is exceeded, the adjustment device comprises a support portion and the friction means is arranged for movement along the support portion , the first pressure member is formed by a movable piston and the second pressure member is formed by a stationary piece, and the friction means forms the friction joint with the stationary piece.