Primary suspension device for a railway vehicle bogie
AssigneeAlstom Transport SA
InventorsAlain Rodet, Christope Eche
Life of this patent
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Abstract
Disclosed is a device (20) for suspending a first element (16) on a second element (14, 16, 18) of a railway vehicle. Said suspension device (20) comprises two longitudinal rods (26, 28) which are each connected to the first element (16) by means of a first connection point (30, 32) and to the second element (14, 16, 18) by means of a second connection point (34, 36), and at least one elastic member (38) that is positioned between the two rods (26, 28) to define at least the vertical rigidity of the suspension device (20). The two rods (26, 28) are longitudinally offset relative to one another.
Claims13
A device for suspending a first element on a second element of a rail vehicle, the device comprising:
- two longitudinal connection rods, each connected to the first element at a first connection location, and connected to the second element at a second connection location, the two connection rods being longitudinally offset relative to each other;
- and
- at least one resilient member interposed between the two connection rods defining at least a vertical stiffness of the suspension device,
- the at least one resilient member being a sandwich including a plurality of layers of a resilient material and a plurality of metal plates interposed between the layers of resilient material and adhesively-bonded to the resilient layers,
- the at least one resilient member having a compression axis forming an angle with respect to an axis that extends through the first connection locations of the two connection rods such that forces acting upon the resilient member when the second element is subject to a vertical force are both a compression force and a shearing force.
A rail vehicle bogie comprising:
- at least one suspension device including:
- two longitudinal connection rods, each rod connected to a first element at first connection location and each rod connected to a second element at a second connection location, the two connection rods being longitudinally offset relative to each other;
- and
- at least one resilient member interposed between the two connection rods defining at least a vertical stiffness of the suspension device,
- the at least one resilient member being a sandwich including a plurality of layers of a resilient material and a plurality of metal plates interposed between the layers of resilient material and adhesively-bonded to the resilient layers,
- the at least one resilient member having a compression axis forming an angle between 20° and 60° with respect to an axis that extends through the first connection locations of the two connection rods.
A rail vehicle comprising:
- at least one suspension device including:
- two longitudinal connection rods, each connected to a first element at a first connection location and connected to a second element at a second connection location, the two connection rods being longitudinally offset relative to each other;
- and
- at least one resilient member interposed between the two connection rods defining at least a vertical stiffness of the suspension device,
- the at least one resilient member being a sandwich including a plurality of layers of a resilient material and a plurality of metal plates interposed between the layers of resilient material and adhesively-bonded to the resilient layers,
- the at least one resilient member having a compression axis forming an angle between 20° and 60° with respect to an axis that extends through the first connection locations of the two connection rods.
Dependencies are inferred from the claim text.