Vocational vehicle with compact suspension assembly
AssigneeOshkosh Corporation
InventorsSteve Volkman, Erik Ellifson, Evan Schertz, David Steinberger, Andrew Kotloski
Life of this patent
Estimating the term…
Abstract
A suspension assembly includes a knuckle, a subframe coupled to the frame rail by a plurality of brackets, an H-arm coupled between the knuckle and the subframe, an upper control arm arranged above the H-arm and coupled between the knuckle and the subframe, and a dual spring assembly biased between the knuckle and the subframe. The dual spring assembly includes a first spring that is nested within and arranged in series with a second spring, and the first spring defines a lower spring rate than the second spring.
Claims20
A suspension assembly for a vehicle, the vehicle including a chassis having a frame rail, the suspension assembly comprising:
- a knuckle;
- a subframe coupled to the frame rail by a plurality of brackets;
- an H-arm coupled between the knuckle and the subframe;
- an upper control arm arranged above the H-arm and coupled between the knuckle and the subframe;
- and
- a dual spring assembly biased between the knuckle and the subframe, wherein the dual spring assembly includes a first spring that is nested within and arranged in series with a second spring, and wherein the first spring defines a lower spring rate than the second spring.
A suspension assembly for a vehicle, the vehicle including a chassis having a frame rail, the suspension assembly comprising:
- a knuckle;
- a wheel end assembly coupled to the knuckle and including a wheel hub and a brake assembly;
- a subframe coupled to the frame rail by a plurality of brackets;
- an H-arm coupled between the knuckle and the subframe;
- an upper control arm arranged above the H-arm and coupled between the knuckle and the subframe;
- and
- a dual spring assembly biased between the knuckle and the subframe, wherein the knuckle, the subframe, the H-arm, the upper control arm, the dual spring assembly, and the wheel end assembly are coupled to one another to form a subassembly that is coupled to the frame rail as a single unit by the plurality of brackets.
A vocational vehicle comprising:
- a chassis having a frame rail;
- a battery supported on the chassis;
- and
- a suspension assembly including:
- a knuckle;
- a subframe coupled to the frame rail by a plurality of brackets;
- an H-arm coupled between the knuckle and the subframe;
- an upper control arm arranged above the H-arm and coupled between the knuckle and the subframe;
- and
- a dual spring assembly biased between the knuckle and the subframe, wherein the dual spring assembly includes a first spring that is nested within and arranged in series with a second spring, and wherein the first spring defines a lower spring rate than the second spring.
Dependencies are inferred from the claim text.