Spring device, especially for the rail vehicle sector
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United States of America Patent
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Issued Date -
Aug 3, 2006
app pub date -
May 26, 2004
filing date -
Jun 4, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a spring device, above all for the rail vehicle sector, particularly for absorbing shocks between a bogie and a superstructure. The spring device encompasses a combination of at least three springs, i.e.: a first spring comprising a pneumatic cushioning diaphragm that is made of an elastomeric material, is provided especially with an embedded strengthening support, particularly in the form of a criss-crossly stacked diaphragm, is fixed to a support plate and a pneumatic spring seat, and encloses an air chamber which has an elastic volume and is connected especially to at least one air supply; a second spring that is disposed between the pneumatic spring seat of the pneumatic cushioning diaphragm and a base and comprises above all a layered spring with at least one elastomer layer, and a third spring that is located above the support plate as an elastic top bearing and comprises especially a layered spring with at least one elastomer layer.
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