Cab suspension system for an off-road vehicle
First Claim
1. A cab suspension system for an off-road vehicle, comprising:
- a superstructure having a plurality of pad assemblies for receiving and supporting the cab, wherein each pad assembly comprises a housing and a pad rigidly coupled to the housing;
a plurality of suspension assemblies secured to the pad assemblies and configured to be mounted on a chassis frame of the vehicle, each suspension assembly comprising at least one compression spring for receiving loading of the cab;
a plurality of motion dampening elements, a motion dampening element being associated with each of the suspension assemblies; and
links extending between pad assemblies for resisting lateral and longitudinal suspension motion, wherein at least one of the links comprises;
a first end rotatably coupled to a pad or a housing of a first pad assembly of the plurality of pad assemblies; and
a second end rotatably coupled to a pad or a housing of a second pad assembly of the plurality of pad assemblies.
3 Assignments
0 Petitions
Accused Products
Abstract
A suspension system for a cab of an off-road vehicle includes a superstructure configured to receive a cab frame. The superstructure forms a framework, the corners of which receive suspension assemblies and dampers. The suspension assemblies include one or more springs or resilient elements to resist suspension motion, and the dampers provide dampening of the motion. Lateral and longitudinal suspension motions are resisted by links between the corners of the superstructure. An anti-roll bar reduces roll. The entire suspension system may be pre-assembled and then joined to the vehicle chassis frame. The cab frame may then be placed on the suspension system. Parts of the suspension system may interface with and be housed by roll-over protective structures.
51 Citations
20 Claims
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1. A cab suspension system for an off-road vehicle, comprising:
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a superstructure having a plurality of pad assemblies for receiving and supporting the cab, wherein each pad assembly comprises a housing and a pad rigidly coupled to the housing; a plurality of suspension assemblies secured to the pad assemblies and configured to be mounted on a chassis frame of the vehicle, each suspension assembly comprising at least one compression spring for receiving loading of the cab; a plurality of motion dampening elements, a motion dampening element being associated with each of the suspension assemblies; and links extending between pad assemblies for resisting lateral and longitudinal suspension motion, wherein at least one of the links comprises; a first end rotatably coupled to a pad or a housing of a first pad assembly of the plurality of pad assemblies; and a second end rotatably coupled to a pad or a housing of a second pad assembly of the plurality of pad assemblies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An off-road vehicle comprising:
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a chassis frame; a cab frame; and a cab suspension system disposed between and coupled to the chassis frame and the cab frame, wherein the cab suspension system comprises; a superstructure having a plurality of pad assemblies for receiving and supporting the cab, wherein each pad assembly comprises a housing and a pad rigidly coupled to the housing; a plurality of suspension assemblies secured to the pad assemblies and configured to be mounted on a chassis frame of the vehicle, each suspension assembly comprising at least one compression spring for receiving loading of the cab; a plurality of motion dampening elements, a motion dampening element being associated with each of the suspension assemblies; links extending between pad assemblies for resisting lateral and longitudinal suspension motion, wherein at least one of the links comprises; a first end rotatably coupled to a pad or a housing of a first pad assembly of the plurality of pad assemblies; and a second end rotatably coupled to a pad or a housing of a second pad assembly of the plurality of pad assemblies; an anti-roll bar configured to reduce roll of the cab; and drop links each extending from a respective pad assembly of the plurality of pad assemblies and rotatably coupled to a respective end of the anti-roll bar. - View Dependent Claims (11, 12)
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13. A method for supporting a cab on an off-road vehicle, comprising:
pre-assembling a cab suspension system, wherein the cab suspension system comprises; a superstructure having a plurality of pad assemblies for receiving and supporting the cab, wherein each pad assembly comprises a housing and a pad rigidly coupled to the housing; a plurality of suspension assemblies secured to the pad assemblies and configured to be mounted on a chassis frame of the vehicle, each suspension assembly comprising at least one compression spring for receiving loading of the cab; a plurality of motion dampening elements, a motion dampening element being associated with each of the suspension assemblies; and links extending between pad assemblies for resisting lateral and longitudinal suspension motion, wherein at least one of the links comprises; a first end rotatably coupled to a first pad assembly of the plurality of pad assemblies; and a second end rotatably coupled to a second pad assembly of the plurality of pad assemblies an anti-roll bar configured to reduce roll of the cab; and drop links each extending from a respective pad assembly of the plurality of pad assemblies and rotatably coupled to a respective end of the anti-roll bar. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
Specification