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(11) | EP 2 551 168 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Gas spring system for a vehicle |
(57) The invention relates to a gas spring device for a vehicle, in particular a rail
vehicle, comprising a gas spring unit (106) and an emergency spring unit (107), the
gas spring unit comprising a first housing part (106.1), a second housing part (106.2)
and a bellows (106.3). The bellows (106.3) moveably connects the first housing part
(106.1) and the second housing part (106.2) such that a substantially gas tight gas
spring chamber (106.4) is confined by the bellows (106.3), the first housing part
(106.1) and the second housing part (106.2). The first housing part (106.1) is adapted
to be connected to a loading structure (102) while the second housing part (106.2)
is adapted to be connected to a support structure (103) adapted to support a load
exerted by the loading structure (102). The gas spring unit (106) has an inflated
state and a deflated state, the gas spring unit (106) being adapted to resiliently
support the load exerted by the loading structure (102) on the support structure (103)
in the inflated state, the emergency spring unit (107) being adapted to resiliently
support the load exerted by the loading structure (102) on the support structure (103)
in the deflated state. The emergency spring unit (107) has a first end (107.3) and
a second end (107.4) and a longitudinal axis (107.5) extending between the first end
and the second end, the emergency spring unit (107) being connected to the first housing
part (106.1) or the second housing part (106.2) in such a manner that one end (107.4)
of the emergency spring unit (107), in the inflated state, is a free end. The free
end (107.4) of the emergency spring unit (107) is located closer to the bellows (106.3)
than the other end (107.3) of the emergency spring unit (107).
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