Electric tailgate for electric refuse vehicle

Patent metadata

Field	Value
Publication number	US-12134929-B2
Application number	US-202318242302-A
Country	US
Kind code	B2
Filing date	Sep 5, 2023
Priority date	May 3, 2019
Publication date	Nov 5, 2024
Grant date	Nov 5, 2024

Abstract

Another implementation of the present disclosure is a refuse vehicle. The refuse vehicle includes a chassis, a body coupled with the chassis, a tailgate, an electric lock, and a fully electric tailgate actuator assembly. The body assembly defines a refuse compartment. The tailgate is coupled with a rear of the body and is transitionable between a first position to limit access to the refuse compartment and a second position to allow access to the refuse compartment. The electric lock is operable between an engaged state and a disengaged state to limit movement of the tailgate out of the first position when the electric lock is in the engaged state. The fully electric tailgate actuator assembly is configured to transition the tailgate between the first position and the second position.

First claim

The invention claimed is:

1. A refuse vehicle comprising:
a chassis;
a body coupled with the chassis, the body defining a refuse compartment;
a tailgate coupled with a rear end of the body, the tailgate transitionable between a first position to limit access to the refuse compartment and a second position to allow access to the refuse compartment;
a fully electric tailgate actuator assembly comprising:
a first linear electric actuator pivotally coupled at a first end with the body and a second end with the tailgate; and
a second linear electric actuator pivotally coupled at a first end with the body and a second end with the tailgate;
wherein the first linear electric actuator and the second linear electric actuator are configured to extend to transition the tailgate into the second position and retract to transition the tailgate into the first position;
wherein the first linear electric actuator comprises a brake, the brake configured to be engaged to selectively limit extension or retraction of the first linear electric actuator.

2. The refuse vehicle of claim 1 , wherein the first linear electric actuator and the second linear electric actuator are ball screw actuators comprising ball screw mechanisms, wherein the brake is configured to engage the ball screw mechanism of the first linear electric actuator.

3. The refuse vehicle of claim 1 , wherein a top end of the tailgate is pivotally coupled with a top member of the rear end of the body such that the tailgate rotates about the top member upwards into the second position and downwards about the top member into the first position.

4. The refuse vehicle of claim 1 , wherein the first linear electric actuator is positioned on a first lateral side of the body of the refuse vehicle and the second linear electric actuator is positioned on a second lateral side of the body of the refuse vehicle.

5. The refuse vehicle of claim 1 , wherein the first end of the first linear electric actuator and the first end of the second linear electric actuator are pivotally coupled with a vertical member of the body of the refuse vehicle.

6. The refuse vehicle of claim 1 , wherein in the first position, the first linear electric actuator and the second linear electric actuator extend from their first ends to their second ends in an upwards and partially rearwards direction.

7. The refuse vehicle of claim 1 , further comprising a tailgate locking assembly, the tailgate locking assembly configured to lock the tailgate in the first position and limit transition of the tailgate out of the first position.

8. The refuse vehicle of claim 7 , wherein the tailgate locking assembly comprises:
a rack extending from a bottom end of the tailgate towards the body; and
a pinion positioned on a bottom of the body, the rack configured to be received within an opening as the tailgate transitions into the first position, the pinion configured to engage the rack as the rack is received within the opening; and
an electric brake or electric motor configured to drive the pinion to lock the tailgate in the first position.

9. A refuse vehicle comprising:
a chassis;
a body coupled with the chassis, the body defining a refuse compartment;
a tailgate coupled with a rear end of the body, the tailgate transitionable between a first position to limit access to the refuse compartment and a second position to allow access to the refuse compartment;
a fully electric tailgate actuator assembly comprising:
a first linear electric actuator pivotally coupled at a first end with the body and a second end with the tailgate; and
a second linear electric actuator pivotally coupled at a first end with the body and a second end with the tailgate;
wherein the first linear electric actuator and the second linear electric actuator are configured to extend to transition the tailgate into the second position and retract to transition the tailgate into the first position; and

a tailgate locking assembly configured to lock the tailgate in the first position and limit transition of the tailgate out of the first position, the tailgate locking assembly comprising:
a rack extending from a bottom end of the tailgate towards the body;
a pinion positioned on a bottom of the body, the rack configured to be received within an opening as the tailgate transitions into the first position, the pinion configured to engage the rack as the rack is received within the opening; and
an electric brake or electric motor configured to drive the pinion to lock the tailgate in the first position.

10. The refuse vehicle of claim 9 , wherein the first linear electric actuator and the second linear electric actuator are ball screw actuators.

11. The refuse vehicle of claim 9 , wherein a top end of the tailgate is pivotally coupled with a top member of the rear end of the body such that the tailgate rotates about the top member upwards into the second position and downwards about the top member into the first position.

12. The refuse vehicle of claim 9 , wherein the first linear electric actuator is positioned on a first lateral side of the body of the refuse vehicle and the second linear electric actuator is positioned on a second lateral side of the body of the refuse vehicle.

13. The refuse vehicle of claim 9 , wherein the first end of the first linear electric actuator and the first end of the second linear electric actuator are pivotally coupled with a vertical member of the body of the refuse vehicle.

14. The refuse vehicle of claim 9 , wherein in the first position, the first linear electric actuator and the second linear electric actuator extend from their first ends to their second ends in an upwards and partially rearwards direction.

15. A fully electric tailgate actuator assembly for a refuse vehicle, the fully electric tailgate actuator assembly comprising:
a first linear electric actuator pivotally coupled at a first end with a body of a refuse vehicle and a second end with a tailgate of the refuse vehicle;
a second linear electric actuator pivotally coupled at a first end with the body and a second end with the tailgate; and
a brake configured to engage a mechanism of the first linear electric actuator to selectively limit movement of the first linear electric actuator;
wherein the first linear electric actuator and the second linear electric actuator are configured to retract to rotate the tailgate about an axis extending through a top member of the body into a first position to limit access to the refuse compartment; and
wherein the first linear electric actuator and the second linear electric actuator are configured to extend to rotate the tailgate about the axis into a second position to allow access to the refuse compartment.

16. The fully electric tailgate actuator assembly of claim 15 , wherein the first linear electric actuator and the second linear electric actuator are ball screw actuators comprising ball screw mechanisms, wherein the brake is configured to engage the ball screw mechanism of the first linear electric actuator.

17. The fully electric tailgate actuator assembly of claim 15 , wherein a top end of the tailgate is pivotally coupled with the top member of a rear end of the body such that the tailgate rotates about the top member upwards into the second position and downwards about the top member into the first position.

18. The fully electric tailgate actuator assembly of claim 15 , wherein the first linear electric actuator is positioned on a first lateral side of the body of the refuse vehicle and the second linear electric actuator is

Assignees

• Oshkosh Corp

Inventors

• Rocholl Joshua D
• Wente Derek A
• Kellander John T
• Clifton Cody D
• Hoover Vincent
• Klein Zachary L
• Weckwerth Clinton T
• Wachter Skylar A
• Kotloski Andrew
• Buege Wallace
• Binder Caleb
• Schimke Martin J

Classifications

• B65F3/046

  with additional means for assisting the tipping of the receptacle after or during raising · CPC title

• E05Y2900/546

  Tailboards, tailgates or sideboards opening upwards · CPC title

• B65F2003/025

  Constructional features relating to actuating means for lifting or tipping containers · CPC title

• B60P1/14

  with cables, chains, or the like · CPC title

• B65F3/04

  Linkages, pivoted arms, or pivoted carriers for raising and subsequently tipping receptacles · CPC title