Spring device
First Claim
1. A spring device arrangement comprising a supporting plate, a substructure and a spring device located between the supporting plate and the substructure, said spring device consisting of two spring systems connected in parallel, each spring system in turn comprising three springs arranged parallel to each other, namely a first spring, a second spring and a third spring, characterized in thatthe first spring is an air spring comprising a bellows made of elastomeric material and connecting the supporting plate with the upper part of a roll-off piston by utilizing securing means, the first springs of the spring systems being connected with each other in a pressure-compensating manner by means of an overflow duct;
- the second spring is mounted outside the first spring and extends from the supporting plate to the substructure; and
the third spring is installed within the roll-off piston of the first spring, simultaneously using a pressure piston for transmitting force, said pressure piston resting with its lower part on the third spring and projecting with its upper part, which is provided with an end stop, into the interior of the first spring, the pressure piston having inside the region of contact with the roll-off piston a vertical slide surface as well as a stepped stop which produces a pretension in conjunction with the third spring, the upper part of the pressure piston having at least one passage opening connecting the interior of the first spring with the interior of the roll-off piston, andsaid substructure comprises a top plate and a bottom plate and is equipped with additional springs arrangement between said top and bottom plates.
2 Assignments
0 Petitions
Accused Products
Abstract
A spring device arrangement in particular for the area of railway vehicles, in particular for spring suspension between a bogie and coach body, in which a spring device is located between a supporting plate and a substructure includes two spring systems connected in parallel. Each spring system comprises three parallel springs, the spring being an air spring or hydropneumatic spring comprising a bellows of elastomer material which connects the supporting plate to the upper part of a spring-support piston, the springs of the spring system being interconnected in a pressure-equalizing manner by an overflow duct. The spring is disposed outside the spring and extends from the supporting plate to the substructure, and the spring is installed in the support piston of the spring, a force-transmitting pressure piston simultaneously being used. The lower part of the pressure piston rests on the spring and its upper part, which is provided with an end stop, projects into the interior of the spring, the pressure piston having inside the region of contact with the support piston a vertical slide surface and a stepped stop which produces pretension in conjunction with the spring.
47 Citations
13 Claims
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1. A spring device arrangement comprising a supporting plate, a substructure and a spring device located between the supporting plate and the substructure, said spring device consisting of two spring systems connected in parallel, each spring system in turn comprising three springs arranged parallel to each other, namely a first spring, a second spring and a third spring, characterized in that
the first spring is an air spring comprising a bellows made of elastomeric material and connecting the supporting plate with the upper part of a roll-off piston by utilizing securing means, the first springs of the spring systems being connected with each other in a pressure-compensating manner by means of an overflow duct; -
the second spring is mounted outside the first spring and extends from the supporting plate to the substructure; and the third spring is installed within the roll-off piston of the first spring, simultaneously using a pressure piston for transmitting force, said pressure piston resting with its lower part on the third spring and projecting with its upper part, which is provided with an end stop, into the interior of the first spring, the pressure piston having inside the region of contact with the roll-off piston a vertical slide surface as well as a stepped stop which produces a pretension in conjunction with the third spring, the upper part of the pressure piston having at least one passage opening connecting the interior of the first spring with the interior of the roll-off piston, and said substructure comprises a top plate and a bottom plate and is equipped with additional springs arrangement between said top and bottom plates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification
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- Resources
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Current AssigneePhoenix Traffic Technology GmbH
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Original AssigneePhoenix AG (Hamburg) (Continental AG)
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InventorsGieseler, Eckhard, Lambrecht, Dirk
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Primary Examiner(s)Oberleitner, Robert J.
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Assistant Examiner(s)KING, BRADLEY T
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Application NumberUS09/091,037Time in Patent Office802 DaysField of Search267/34, 267/186, 267/64.24, 267/221, 267/201, 267/203, 267/190, 267/222, 105/199.1, 105/453US Class Current267/34CPC Class CodesB60G 17/0485 the springs being pneumatic...B60G 2202/12 Wound springB60G 2202/1524 with two air springs per wh...B60G 2204/124 Mounting of coil springsB60G 2204/126 Mounting of pneumatic springsB60G 2204/41 Elastic mounts, e.g. bushingsB60G 2204/45 Stops limiting travelB60G 2204/4502 using resilient bufferB60G 2300/10 Railway vehiclesB60G 2500/20 Spring action or springsB61F 5/02 Arrangements permitting lim...B61F 5/144 comprising fluid damping de...F16F 13/002 comprising at least one flu...F16F 9/05 the flexible wall being of ...
