Maintenance vehicle with a hopper assembly

Patent metadata

Field	Value
Publication number	US-12479348-B2
Application number	US-202217694435-A
Country	US
Kind code	B2
Filing date	Mar 14, 2022
Priority date	Apr 1, 2021
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

The technology disclosed herein relates to a maintenance vehicle. The vehicle has a vehicle frame, drive wheels rotatably coupled to the vehicle frame and a prime mover coupled to the vehicle frame. The prime mover is in operative communication with the drive wheels. A hopper assembly is pivotably coupled to the vehicle frame. The hopper assembly has a hopper having a discharge opening and a spreader disk adjacent to the discharge opening. The hopper assembly is pivotable about a pivot axis between a maintenance position and an operating position. The spreader disk is positioned vertically below the discharge opening when the hopper assembly is in an operating position.

First claim

What is claimed is:

1 . A maintenance vehicle comprising:
a vehicle frame; drive wheels rotatably coupled to the vehicle frame; a prime mover coupled to the vehicle frame, wherein the prime mover is in operative communication with the drive wheels; and a hopper assembly comprising a hopper having a loading opening and a discharge opening, wherein the hopper assembly is pivotably coupled to the vehicle frame, wherein the hopper assembly is pivotable about a pivot axis between a maintenance position and an operating position.

2 . The maintenance vehicle of claim 1 , further comprising a control panel fixed to the vehicle frame, wherein the control panel is in operative communication with the prime mover; and
a hopper controller fixed relative to the hopper, wherein the hopper controller is adjacent the control panel when the hopper is in the operating position and the hopper controller is distant from the control panel when the hopper is in the maintenance position.

3 . The maintenance vehicle of claim 1 , further comprising a standing platform coupled to the vehicle frame, the standing platform adapted to support a standing operator.

4 . The maintenance vehicle of claim 1 , wherein the hopper assembly extends over the prime mover in the operating position and the hopper assembly exposes the prime mover in the maintenance position.

5 . The maintenance vehicle of claim 2 , wherein the hopper controller is configured to adjust a rate of release of a bulk material from the hopper.

6 . The maintenance vehicle of claim 1 , wherein the hopper assembly is configured to pivot in a forward direction relative to the maintenance vehicle.

7 . The maintenance vehicle of claim 1 , wherein the hopper has a front end and a rear end and a hopper volume extending between a top end and a bottom end, wherein the hopper volume is asymmetric and has a center of gravity that is closer to the rear end than the front end.

8 . The maintenance vehicle of claim 7 , the hopper further comprising a front inclined sidewall and a rear inclined sidewall, wherein the slope of the rear inclined sidewall is less than the opposite of the slope of the front inclined sidewall.

9 . The maintenance vehicle of claim 1 , wherein the maintenance vehicle is a zero radius turn vehicle.

10 . The maintenance vehicle of claim 1 , further comprising a spreader disk adjacent to the discharge opening, wherein the spreader disk is positioned vertically below the hopper when the hopper assembly is in an operating position.

11 . The maintenance vehicle of claim 10 , wherein the spreader disk is fixed to the hopper such that the spreader disk is configured to pivot with the hopper.

12 . A maintenance vehicle comprising:
a vehicle frame; drive wheels rotatably coupled to the vehicle frame; a prime mover coupled to the vehicle frame, wherein the prime mover is in operative communication with the drive wheels; a standing platform coupled to the vehicle frame, the standing platform adapted to support a standing operator; and a hopper assembly comprising a hopper coupled to the vehicle frame, wherein the hopper has a front end and a rear end and a hopper volume extending between a top end and a bottom end, wherein the hopper volume is asymmetric and has a center of gravity that is closer to the rear end than the front end, and wherein the hopper defines a loading opening and a discharge opening.

13 . The maintenance vehicle of claim 12 , wherein the hopper assembly is pivotably coupled to the vehicle frame, wherein the hopper assembly is pivotable about a pivot axis between a maintenance position and an operating position.

14 . The maintenance vehicle of claim 13 , further comprising a hopper controller fixed relative to the hopper and a control panel fixed to the vehicle frame, wherein the control panel is in operative communication with the prime mover, the hopper controller is in operative communication with the hopper assembly, and the hopper controller is adjacent the control panel when the hopper is in the operating position and the hopper controller is distant from the control panel when the hopper is in the maintenance position.

15 . The maintenance vehicle of claim 13 , wherein the hopper assembly obstructs the prime mover in the operating position and the hopper assembly exposes the prime mover in the maintenance position.

16 . The maintenance vehicle of claim 13 , wherein the hopper assembly is configured to pivot in a forward direction relative to the maintenance vehicle.

17 . The maintenance vehicle of claim 12 , the hopper further comprising a front inclined sidewall and a rear inclined sidewall, wherein the slope of the rear inclined sidewall is less than the opposite of the slope of the front inclined sidewall.

18 . The maintenance vehicle of claim 12 , wherein the maintenance vehicle is a zero radius turn vehicle.

19 . The maintenance vehicle of claim 17 , further comprising a spreader disk adjacent to the discharge opening, wherein the spreader disk is positioned vertically below the hopper when the hopper assembly is in an operating position.

20 . The maintenance vehicle of claim 19 , wherein the spreader disk is fixed to the hopper.

21 . A maintenance vehicle comprising:
a vehicle frame; drive wheels rotatably coupled to the vehicle frame; a prime mover coupled to the vehicle frame, wherein the prime mover is in operative communication with the drive wheels; a standing platform coupled to the vehicle frame, the standing platform adapted to support a standing operator; a hopper assembly comprising a hopper pivotably coupled to the vehicle frame, wherein the hopper has a front end and a rear end and a hopper volume extending between a top end and a bottom end, wherein the hopper assembly is pivotable about a pivot axis between a maintenance position and an operating position; a hopper controller fixed relative to the hopper; and a control panel fixed to the vehicle frame, wherein the control panel is in operative communication with the prime mover, the hopper controller is in operative communication with the hopper assembly, and the hopper controller is adjacent the control panel when the hopper is in the operating position and the hopper controller is distant from the control panel when the hopper is in the maintenance position.

Assignees

• Exmark Mfg Company Incorporated

Inventors

• Moore Jeffrey J
• Macy Kyler J
• Lanik Rodney

Classifications

• B62D51/02

  the driver standing in the vehicle · CPC title

• B60P1/28

  Tipping body constructions · CPC title

• B60P1/56 Primary

  the load-transporting element having bottom discharging openings · CPC title