Abstract: A friction spring unit has a friction spring including a plurality of inner rings and outer rings whose conical surfaces cooperate with each other with interposition of a lubricant, and an outer casing element and an inner casing element which shield the friction spring from outside and inside, respectively. The rings of the friction spring which are located at axial ends of the latter are sealingly connected with the inner casing element and the outer casing element. This sealing connection may be performed by interengaging beads and grooves, or flange-like projections and supports. The casing elements may be formed as hoses or each may be composed of at least two telescopable sleeves.

Abstract: An arrangement for resilient absorption of forces, particularly for an intermediate buffer coupling of rail vehicles, has an elongated housing with an open end and a closed end, a friction element located in the region of the open end of the housing, a resilient element cooperating in series with the friction element and formed as a friction spring having a plurality of inner conical rings and outer conical rings cooperating with one another with interposition of a lubricant, and outer and inner cup-shaped casing members in the housing which are telescopable in one another and closingly accommodate the outer rings and the inner rings of the friction spring, of which the inner cup-shaped member has an outer diameter corresponding to the transverse dimensions of an opening of the open end of the housing, whereas the outer cup-shaped member is separated in a longitudinal direction into a plurality of parts which are tightly held together by holding elements.

Abstract: An arrangement for resilient absorption of forces, particularly for an intermediate buffer coupling of rail vehicles, has an elongated housing with a closed end and an open end, a friction device located in the region of the open end, and a resilient element in the housing, cooperating in series with the friction device and formed as a friction spring including a plurality of conical inner and outer rings cooperating with one another with interposition of a lubricant. An opening of the open end of the housing has a smaller diameter than a portion of the housing wherein the resilient element is accommodated. Two telescopable cup-shaped members are located in the housing and accommodate the rings of the friction spring. One of the cup-shaped members has a diameter exceeding the diameter of the opening of the housing and is constituted by an elastically deformable material.