Work vehicle

Patent metadata

Field	Value
Publication number	US-12568879-B2
Application number	US-202117557055-A
Country	US
Kind code	B2
Filing date	Dec 21, 2021
Priority date	Dec 26, 2020
Publication date	Mar 10, 2026
Grant date	Mar 10, 2026

Abstract

The disclosure provides a work vehicle. The work vehicle includes: a frame, a wheel unit connected with the frame, a working unit connected with the frame, and a power source arranged on the frame to supply power. The work vehicle further includes: a brake assembly connected with the wheel unit, a locking assembly, provided with a lock arm to lock the brake assembly, and a starting mechanism. The starting mechanism includes a starting arm connected with the lock arm to drive the lock arm to move when the starting arm is operated to unlock the brake assembly.

First claim

What is claimed is:

1 . A work vehicle, comprising:
a frame, a wheel unit connected with the frame, a working unit connected with the frame, and a power source arranged on the frame to supply power, wherein
the work vehicle further comprises:
a brake assembly connected with the wheel unit,
a locking assembly, comprising a lock arm to lock the brake assembly, and
a starting mechanism, comprising a starting arm connected with the lock arm to drive the lock arm to move when the starting arm is operated to unlock the brake assembly;
wherein, the brake assembly comprises a brake arm, a connecting portion, a brake wire and a brake switch, the brake switch is capable of being triggered by the connecting portion, a touching part is arranged on the connecting portion and configured to increase a contact area of the connecting portion and the brake switch, the brake switch is connected to a driving mechanism of the work vehicle, and when the brake switch is turned off, the brake switch is configured to lock a motor for driving the wheel unit and stop the work vehicle from moving.

2 . The work vehicle according to claim 1 , wherein
the connecting portion is connected with the brake arm and the brake wire is connected with the connecting portion to drive the brake wire to move through the brake arm.

3 . The work vehicle according to claim 2 , wherein
the connecting portion is provided with a limiting part matched with the locking assembly.

4 . The work vehicle according to claim 3 , wherein
the lock arm is provided with a locking part capable of matching with the limiting part.

5 . The work vehicle according to claim 4 , wherein
the starting mechanism comprises an accelerator connected with the starting arm.

6 . The work vehicle according to claim 5 , wherein
the starting mechanism further comprises a first reset mechanism to drive the starting arm to reset.

7 . The work vehicle according to claim 5 , further comprises a base for housing at least a part of the brake assembly and at least a part of the starting mechanism, wherein
the base is provided with an opening for the brake arm and the starting arm to pass through.

8 . The work vehicle according to claim 7 , wherein
the starting arm is provided with a first pedal at a first end outside the base, and the brake arm is provided with a second pedal at the other a second end outside the base.

9 . The work vehicle according to claim 8 , wherein
the second pedal is configured to drive the brake arm to rotate relative to the frame, and then drive the connecting portion to move so as to enable the connecting portion to be separated from the brake switch and switch off the brake switch, the brake wire is configured to brake the wheel unit, and the lock arm is driven by a handle until the locking part of the lock arm matches the limiting part on the connecting portion so as to lock the brake assembly and brake the work vehicle.

10 . The work vehicle according to claim 9 , wherein
the lock arm and the starting arm are connected through an elastic component so as to drive the lock arm to move through the starting arm, the first pedal is configured to drive the starting arm to move so as to pull the lock arm through the elastic component to rotate the lock arm, then the locking part of the lock arm is separated from the limiting part on the connecting portion, the brake arm returns to a reset position and the brake wire is released, and then the connecting portion is configured to touch the brake switch to turn on the brake switch so as to release the motor for driving the wheel unit from a locked state and release the work vehicle.

11 . The work vehicle according to claim 1 , wherein
the lock arm and the starting arm are connected through an elastic component so as to drive the lock arm to move through the starting arm.

12 . The work vehicle according to claim 11 , wherein
the brake assembly comprises a second reset mechanism to drive the brake assembly to reset.

13 . The work vehicle according to claim 12 , wherein
the locking assembly comprises a third reset mechanism to drive the lock arm to reset.

14 . The work vehicle according to claim 1 , wherein
the work vehicle is a mower.

15 . The work vehicle according to claim 1 , wherein
the brake arm is provided with a second pedal, the second pedal is configured to drive the brake arm to rotate relative to the frame, and then drive the connecting portion to move so as to enable the connecting portion to be separated from the brake switch and switch off the brake switch, the brake wire is configured to brake the wheel unit, and the lock arm is driven by a handle until the lock arm coupled with the connecting portion so as to lock the brake assembly and brake the work vehicle.

16 . A work vehicle, comprising:
a frame, a wheel unit connected with the frame, a working unit connected with the frame, and a power source arranged on the frame to supply power, wherein
the work vehicle further comprises:
a locking assembly,
a brake assembly connected with the frame, wherein when the brake assembly is operated to a position, the brake assembly is locked by the locking assembly, and
a starting mechanism, configured to connect with the locking assembly, wherein
when the starting mechanism is operated to move to a position, the locking assembly unlocks the brake assembly;
wherein, the brake assembly further comprises a connection portion and a brake switch, the brake switch is capable of being triggered by the connection portion, a touching part is arranged on the connecting portion and configured to increase a contact area of the connecting portion and the brake switch, the brake switch is connected to a driving mechanism of the work vehicle, and when the brake switch is turned off, the brake switch is configured to lock a motor for driving the wheel unit and stop the work vehicle from moving.

17 . A work vehicle, comprising:
a frame, a wheel unit connected with the frame, and a working unit connected with the frame, wherein
the work vehicle further comprises:
a brake assembly, provided with a second pedal, wherein when the second pedal is stepped to a certain position, the wheel unit is in a braking state;
a locking assembly comprising a handle, wherein when the handle is operated, the brake assembly is locked by the locking assembly, the brake assembly is in a locked state, and the wheel unit is locked in a braking state, and
a starting mechanism, provided with a first pedal, wherein when the brake assembly is in a locked state, the first pedal is stepped on, the locking assembly unlocks the brake assembly, and the wheel unit is unlocked;
wherein, the brake assembly comprises a brake arm, a connecting portion, a brake wire and a brake switch, the brake switch is capable of being triggered by the connecting portion, a touching part is arranged on the connecting portion and configured to increase a contact area of the connecting portion and the brake switch, the brake switch is connected to a driving mechanism of the work vehicle, and when the brake switch is turned off, the brake switch is configured to lock a motor for driving the wheel unit and stop the work vehicle from moving.

Assignees

• Globe Jiangsu Co Ltd

Inventors

• Ding Min
• Wei Qunli
• Zhu Fei
• Wang Chaoqun

Classifications

• A01D34/82

  Other details · CPC title

• A01D34/78

  electric · CPC title

• A01D34/006

  Control or measuring arrangements · CPC title

• A01D34/64 Primary

  mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle (A01D34/695 takes precedence) · CPC title

• A01D69/10

  Brakes · CPC title