IP Library Granted Patent US 11,813,917
Granted Patent B2
US 11,813,917 · App. 17/165,536 · Granted Nov 14, 2023

Suspension element systems and methods

Inventors: Aaron Rositch (Oshkosh, WI); Erik Ellifson (Oshkosh, WI); Patrick Dillman (Hartford, WI); Kai Schubart (Oshkosh, WI); Robert Sollenskog (Oshkosh, WI)
Assignee: Oshkosh Defense, LLC
B60G3/01B60G15/12B60G2202/152B60G2202/24B60G2206/82013
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Quick Facts
Patent No.
US 11,813,917
App. No.
17/165,536
Granted
Nov 14, 2023
Kind
B2
Abstract

A vehicle includes a support arm and a suspension element. The suspension element is rotatably connected to a support arm of a vehicle via a mounting pin that extends through an opening on the suspension element, a thrust washer, and a seal. The combination of elements prevent debris from migrating into the connection. The suspension element is configured to connect to a structural element of the vehicle via an upper mount. The suspension element may include a recoil damper having a piston with a plurality of grooves arranged to balance the forces on the piston during and after a recoil event or jounce.

Claims (15)

1. A vehicle, comprising:

a support arm having a mounting portion including a passage;

a suspension element including a cap attached to a first end of the suspension element, the cap including a first opening;

a thrust washer disposed between the passage and the first opening, the thrust washer including a ring, the thrust washer defining a plurality of channels that extend in a radial direction with respect to a central axis of the ring; and

a mounting pin extending through the passage, the first opening, and the thrust washer, wherein the mounting pin rotatably couples the suspension element to the support arm.

2. The vehicle of claim 1 , wherein the ring is spaced apart from the mounting pin to form an annular gap therebetween, wherein the vehicle further comprises a seal that is at least partially disposed within the annular gap.

3. The vehicle of claim 2 , wherein the seal occludes the annular gap.

4. The vehicle of claim 1 , wherein the cap further comprises an ear, wherein the first opening is defined by the ear, and wherein the ear is spaced apart from the support arm by the thrust washer.

5. The vehicle of claim 1 , wherein the plurality of channels are disposed at an axial end of the ring.

6. The vehicle of claim 1 , wherein the support arm defines a recessed area at an end of the passage, wherein the ring is received at least partially within the recessed area, and wherein at least one of the plurality of channels extends radially outwardly from the recessed area.

7. The vehicle of claim 1 , wherein an inner diameter of the ring is greater than an inner diameter of at least one of the plurality of channels.

8. The vehicle of claim 1 , wherein at least one of the plurality of channels extends radially beyond the first opening.

9. The vehicle of claim 1 , wherein the plurality of channels are spaced in approximately equal intervals along a perimeter of the ring.

10. The vehicle of claim 1 , wherein the ring is disposed at an intermediate radial position between an outer diameter and an inner diameter of at least one of the plurality of channels.

11. The vehicle of claim 1 , where an axial length of the ring is greater than an axial length of the plurality of channels.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2023
From: ROSITCH, AARON; ELLIFSON, ERIK; DILLMAN, PATRICK; SCHUBART, KAI; SOLLENSKOG, ROBERT
To: OSHKOSH DEFENSE, LLC
Reel/Frame 064404/0964 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2023
From: ROSITCH, AARON; ELLIFSON, ERIK; DILLMAN, PATRICK
To: OSHKOSH DEFENSE, LLC
Reel/Frame 064405/0227 →
Continuity (5)
Continuation 16859225 · Apr 27, 2020
Continuation 15956974 · Apr 19, 2018
Provisional Application 62491971 · Apr 28, 2017
Provisional Application 62491132 · Apr 27, 2017
Related Publication 20210155063A1 · May 27, 2021