Abstract: An identification device (1) for a pneumatic spring (2) includes an RFID transponder (8), which is completely embedded into the elastomer matrix (13) of the flexible member (4). An electromagnetic field is generated by a read device (9), wherein the energy necessary for supplying the RFID transponder (8) is taken from the electromagnetic field generated by the read device (9). When the read device (9) is active, information can be exchanged between the RFID transponder (8) and the read device (9). The RFID transponder (8) operates completely without an internal energy supply. The RFID transponder (8) may also be configured as a read/write transponder including a memory chip, wherein data may be stored on the memory chip in a safe and permanent manner. By retrieving data from the RFID transponder (8), an identification of the pneumatic spring (2) is possible even without any internal power supply of the RFID transponder.

Abstract: The invention relates to an article comprising a main body (6, 7, 8) that consists of a polymer material having elastic properties, particularly an air spring bellows (2), a metal-rubber element or a vibration damper. In order for fire-retardant properties to be improved, the article is provided, partially or fully, with a cover (9) formed from at least one flat textile structure and/or at least one three-dimensional textile structure and/or at least one shrink film. The cover can be fire-retardant itself or can be equipped to be fire-retardant.

Abstract: A roll-off piston made of plastic is for an air spring rolling-lobe flexible member (19) of the air spring. The roll-off piston (1) is configured as a plunge piston and has a preferably central support (2) for a stop buffer (3) acting in an axial direction of the air spring. The support (2) is preferably made of steel and can be received in a recess in the roll-off piston. The recess is of complementary configuration to the shape of the support and can be connected to the piston.

Abstract: A roll-off piston is made of plastic for an air spring rolling-lobe flexible member. The roll-off piston and the air spring rolling-lobe flexible member are arranged between a sprung mass and an unsprung mass. The roll-off piston includes a first piston part; a second piston part connected to the first piston part; and, the first and second piston parts being made of a layered composite material of alternating layers of plastic and elastomeric material.

Abstract: The invention is directed to a hydraulic bearing which includes two connecting pieces, an annular rubber-elastic spring, a hydraulic chamber unit made of a working chamber and a compensating chamber and a partition unit having a connecting channel between the working chamber and the compensating chamber. The partition unit is configured as a disc and is disposed within the vertical elevation of the annular rubber-elastic spring and one of the connecting pieces.

Abstract: An air spring for commercial vehicles includes a rolling-lobe flexible member which is made of an elastomeric material and which at one end thereof is fastened to a first attachment part and at the other end thereof is fastened to a second attachment part in the form of a roll-off piston. The ends of the rolling-lobe flexible member each have a fastening bead which is reinforced in each case by a bead core. At least one of the two bead cores consists of plastic material. In order to achieve greater strength of the fastening bead, the bead core or the bead cores include a multiply-wound, flat profile strip made of glass-fiber-reinforced plastic material.

Abstract: A roll-off piston for an air spring rolling-lobe flexible member, the interior of the roll-off piston is connected to the interior of the air spring. The roll-off piston includes two parts, namely, a pot-shaped piston lower part and a piston upper part connected in an air-tight manner to the lower part. A support for a stop buffer is integrated in the roll-off piston. The support includes two interacting parts, of which one part is configured as part of the piston upper part and the other part is configured as part of the pot-shaped lower part and extends from the base thereof. Both support parts interact in order to absorb forces acting substantially axially.

Abstract: An apparatus transmits and/or receives radio waves in the UHF band and is configured for installation in an elastic structure. The apparatus includes at least one electronic component and an antenna embedded in the elastic structure. The antenna is connected to the electronic component and includes at least one filament configured to be plastically deformable and/or elastically deformable. The filament is helically wound to a predetermined antenna length (L) and defines an antenna winding turns density per cm of the antenna length. The antenna length (L) is between 4 cm and 10 cm and the antenna winding turns density lies in a range of 5 to 15 winding turns per cm of the antenna length.

Abstract: An air spring has a rolling-lobe flexible member terminating in a conically-shaped bead defining a conically-shaped opening of the flexible member. A-roll-off piston has an end facing toward the flexible member and has a conical seat formed thereon for receiving the bead of the flexible member to conjointly define therewith an airtight force fit connection. The roll-off piston further has a support shoulder beneath the conical seat whereon the flexible member is supported when deflected and the roll-off piston has an annular groove formed therein between the end thereof and the conical seat. An annular locking member is seatable in the annular groove after assembly of the flexible member on the conical seat so as to hinder the bead from slipping off of the conical seat.

Abstract: The invention is directed to a pneumatic spring device (3) of a rail vehicle (1). The device includes a pneumatic spring bellows (5), which is provided on both ends with a bead ring (6, 7), wherein the bead ring (6, 7) has a core made of two core rings (10, 11, 13, 14) positioned separately in the bead ring and the reinforcement elements (12) are guided in an S shape between the core rings and loop around the latter.

Abstract: An identification device (1) for a pneumatic spring (2) includes an RFID transponder (8), which is completely embedded into the elastomer matrix (13) of the flexible member (4). An electromagnetic field is generated by a read device (9), wherein the energy necessary for supplying the RFID transponder (8) is taken from the electromagnetic field generated by the read device (9). When the read device (9) is active, information can be exchanged between the RFID transponder (8) and the read device (9). The RFID transponder (8) operates completely without an internal energy supply. The RFID transponder (8) may also be configured as a read/write transponder including a memory chip, wherein data may be stored on the memory chip in a safe and permanent manner. By retrieving data from the RFID transponder (8), an identification of the pneumatic spring (2) is possible even without any internal power supply of the RFID transponder.

Abstract: The invention relates to an air spring having an air spring flexible member (1) whose wall (5) of elastomeric material has at least one reinforcement layer (19) and bead (3) with a reinforcement core. The reinforcement layer surrounds the reinforcement core in the form of a loop (20). The flexible member wall, which projects from the bead, does not lie flush on the piston but forms an arc projecting away from the piston when viewed in cross section. The core loop can thus terminate inside the piston diameter thereby improving the roll-off characteristics of the flexible member.

Abstract: A roll-off piston made of plastic is for an air spring rolling-lobe flexible member (19) of the air spring. The roll-off piston (1) is configured as a plunge piston and has a preferably central support (2) for a stop buffer (3) acting in an axial direction of the air spring. The support (2) is preferably made of steel and can be received in a recess in the roll-off piston. The recess is of complementary configuration to the shape of the support and can be connected to the piston.

Abstract: An air spring piston for a heavy-duty vehicle includes a top portion and a bottom portion. The top portion includes a bumper and a connecting means for an air spring bellows. The bottom portion is mounted on a structure of the vehicle. The top portion and bottom portion are connected to each other to form a piston chamber and include a bearing means for reacting bumper forces from the bumper to the bottom portion and to the structure of the vehicle on which the bottom portion is mounted. The piston chamber is in fluid communication with a bellows chamber of the air spring via an opening, wherein the geometry of the opening is such that during dynamic spring movements, the pressure in the piston chamber and the pressure in the bellows chamber are not equalized.

Abstract: A roll-off piston for an air spring rolling-lobe flexible member, the interior of the roll-off piston is connected to the interior of the air spring. The roll-off piston includes two parts, namely, a pot-shaped piston lower part and a piston upper part connected in an air-tight manner to the lower part. A support for a stop buffer is integrated in the roll-off piston. The support includes two interacting parts, of which one part is configured as part of the piston upper part and the other part is configured as part of the pot-shaped lower part and extends from the base thereof. Both support parts interact in order to absorb forces acting substantially axially.

Abstract: An apparatus transmits and/or receives radio waves in the UHF band and is configured for installation in an elastic structure. The apparatus includes at least one electronic component and an antenna embedded in the elastic structure. The antenna is connected to the electronic component and includes at least one filament configured to be plastically deformable and/or elastically deformable. The filament is helically wound to a predetermined antenna length (L) and defines an antenna winding turns density per cm of the antenna length. The antenna length (L) is between 4 cm and 10 cm and the antenna winding turns density lies in a range of 5 to 15 winding turns per cm of the antenna length.

Abstract: An air spring has a rolling-lobe flexible member terminating in a conically-shaped bead defining a conically-shaped opening of the flexible member. A-roll-off piston has an end facing toward the flexible member and has a conical seat formed thereon for receiving the bead of the flexible member to conjointly define therewith an airtight force fit connection. The roll-off piston further has a support shoulder beneath the conical seat whereon the flexible member is supported when deflected and the roll-off piston has an annular groove formed therein between the end thereof and the conical seat. An annular locking member is seatable in the annular groove after assembly of the flexible member on the conical seat so as to hinder the bead from slipping off of the conical seat.

Abstract: A cover assembly for an air spring for vehicles includes a cover (1) and a buffer (2) in the cover (1). The cover (1) is made from plastic and has reinforcing ribs (3) on the inside. The stop buffer (2) has slots on the side thereof facing the cover (1) in a manner corresponding to the reinforcing ribs (3) of the cover (1). The ribs (3) of the cover (1) are inserted into the slots (8). Damage to the buffer (2) by impact of the ribs (3) on the buffer (2) is thus avoided.

Abstract: The invention relates to an air spring damper module including a shock absorber (1) and a roll-off piston (5) which is pushed over the upper end of the shock absorber with an opening in the piston base with the piston base being supported on the outer tube (16) of the shock absorber via an annular flange (2). A pipe (15) is centrally fixed to the inner surface of the piston cover (6) and engages around the shock absorber (1) in the mounted state and also is supported on the annular flange (2) of the shock absorber (1). The inner surface of the piston cover and the upper closure of the shock absorber are spaced apart by a gap.

Abstract: A railway bogie includes at least two spring units per one wheel, a bogie frame and an essentially single piece adapter which bridges the spring units and is arranged between the spring units on the one side and the bogie frame on the other side.