US 12,054,082 B2Granted

Suspension system for a utility vehicle

AssigneeAriens Company

InventorsBrent P. Berglund, Jeffrey M. Berchem

Life of this patent

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Abstract

A utility vehicle includes a frame, a first ground-engaging element coupled to a first portion of the frame, a second ground-engaging element coupled to a second portion of the frame, an operator platform supported by the frame, and a suspension system coupled between the operator platform and the frame to accommodate motion of the frame relative to the operator platform. The suspension system includes a first linkage assembly coupled to the operator platform and operable to accommodate motion of the second portion of the frame relative to the operator platform and a second linkage assembly having a first end coupled to the frame to secure the suspension system to the frame and a second end coupled to the first linkage assembly. The second linkage assembly being operable independent of the first linkage assembly to accommodate motion of the first portion of the frame relative to the operator platform.

Claims20

Dependent claims

A utility vehicle comprising:

a frame;
a first ground-engaging element coupled to a first portion of the frame;
a second ground-engaging element coupled to a second portion of the frame;
an operator platform supported by the frame;
an operator control coupled to and movable with the operator platform;
and
a suspension system coupled between the operator platform and the frame to accommodate motion of the frame relative to the operator platform, the suspension system comprising:
a first linkage assembly coupled to the operator platform and operable to accommodate motion of the second portion of the frame relative to the operator platform;
and
a second linkage assembly having a first end coupled to the frame to secure the suspension system to the frame and a second end coupled to the first linkage assembly, the second linkage assembly being operable independent of the first linkage assembly to accommodate motion of the first portion of the frame relative to the operator platform;
wherein the first portion of the frame is one of a front portion of the frame and a rear portion of the frame and the second portion of the frame is the other of the front and rear portion of the frame.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/870,527Filed 21 Jul 2022 · continuation
Priority: 9 May 2019
Published: US 2022/0169155 A110 Nov 2022
Granted: 6 Aug 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

B60N 2/502
Seat suspension devices: attached to the base of the seat
B60N 2/54
Seat suspension devices: using mechanical springs
A01D 67/04
Undercarriages or frames specially adapted for harvesters or mowers ; Mechanisms for adjusting the frame ; Platforms: seats
B60G 3/18
Resilient suspensions for a single wheel: with two or more pivoted arms, e.g. parallelogram

Family

Application62/845,345Us provisional application · filed 9 May 2019
Application63/014,593Us provisional application · filed 23 Apr 2020
PCT/US2020/032227Parent of this continuation · filed 8 May 2020
US 2022/0355716 A1Pre-grant publication · published 10 Nov 2022
Application17/609,349Parent of this continuation
US 11,413,995 B2Parent of this continuation
US 2022/0169155 A1Published application
US 12,054,082 B2This patent

From the US filing history. Foreign family members aren’t listed.