Lawncare apparatus

Patent metadata

Field	Value
Publication number	US-10492365-B2
Application number	US-201615373798-A
Country	US
Kind code	B2
Filing date	Dec 9, 2016
Priority date	Oct 15, 2012
Publication date	Dec 3, 2019
Grant date	Dec 3, 2019

Abstract

A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, an operating arm connected to the first end of the main body, and a transmission assembly. The transmission assembly is configured to prevent the switching device from being controlled in a mechanical way by the operation assembly or/and turning on the motor when the first member is moved towards the main body to a predetermined position relative to the second member.

First claim

What is claimed is:

1. A lawn care apparatus, comprising:
a main body;
a motor supported by the main body;
a plurality of wheels supporting the main body;
a handle connected to the main body, the handle comprising a first member and a second member wherein the first member will move relative to the second member along a direction that is towards the main body;
a switching device for controlling the motor;
an operation member for being operated by a user, the operation member being movably connected to the handle; and
a transmission assembly for performing a mechanical transmission between the operation member and the switching device such that the transmission assembly triggers the switching device to start the motor when the first member is moved to a predetermined position relative to the second member along a direction that is away from the main body,
wherein the transmission assembly prevents the switching device in a mechanical way from controlling the motor to start when the first member is moved away from the predetermined position,
wherein the first member is a slide arm assembly, the slide arm assembly comprises two slide arms extending at least partially along a first straight line, the second member is an arm assembly, the arm assembly comprises two arms extending at least partially along the first straight line, and the first member can slide to a predetermined position relative to the second member along the first straight line,
wherein the transmission assembly comprises a flexible member having a first end and a second end, which are oppositely disposed,
wherein the first end of the flexible member is connected to the switching device, the second end of the flexible member moves along with the two slide arms when the two slide arms slides relative to the arms along the first straight line, and
wherein when the two slide arms slide to a predetermined position relative to the arms, the size of the handle increases in a direction of the first straight line, and the first end of the flexible member moves along with the two slide arms to tension the flexible member such that the transmission assembly triggers the switching device to start the motor; when the two slide arms are away from the predetermined position relative to the arms, the size of the handle in the direction of the first straight line is reduced, and the first end of the flexible member moves along with the two slide arms to loosen the flexible member such that the transmission assembly cannot trigger the switching device to start the motor.

2. The lawn care apparatus as recited in claim 1 , wherein the switching device is disposed in the main body.

3. The lawn care apparatus as recited in claim 1 , wherein the handle further comprises a first handle housing fixedly connected to the first member and the switching device is disposed in the first handle housing.

4. The lawn care apparatus as recited in claim 1 , wherein the handle further comprises a second handle housing fixedly connected to the second member and the switching device is disposed in the second handle housing.

5. The lawn care apparatus as recited in claim 4 , wherein the second member is rotatably connected to the main body.

6. The lawn care apparatus as recited in claim 1 , wherein the handle further comprises a first handle housing fixedly connected to the first member and the switching device is disposed in the first handle housing, the operation member being rotatably connected to the first handle housing.

7. The lawn care apparatus as recited in claim 1 , further comprising a security member for being operated by the user before using the operation member, the security member being at least one of movably or detachably connected to the handle, and wherein the transmission assembly comprises a first clutch member for cutting off the mechanical transmission between the operation member and the switching device when the security member is not operated to a preset state by the user and a second clutch member for cutting off the mechanical transmission between the operation member and the switching device when the first member is moved towards the main body to the predetermined position relative to the second member.

8. The lawn care apparatus as recited in claim 1 , further comprising a security member for being operated by the user before using the operation member, the security member being at least one of movably or detachably connected to the handle, and wherein the transmission assembly comprises a clutch member for cutting off the mechanical transmission between the operation member and the switching device when the security member is not operated to a preset state by the user.

9. The lawn care apparatus as recited in claim 1 , wherein the flexible member is configured to be in a tension state for transmitting a tensile force between the operation member and the switching device when the first member is moved from a predetermined position relative to the second member in a direction that is away from the main body and to be in a relaxation state such that the flexible member is not capable of performing the mechanical transmission between the operation member and the switching device.

Assignees

• Chervon Hk Ltd

Inventors

• Yamaoka toshinari
• Nie Fangjie
• Xu Haishen
• Shao Xiandian

Classifications

• A01D34/824

  Handle arrangements · CPC title

• A01D75/006

  for lawn-mowers · CPC title

• A01D34/006

  Control or measuring arrangements · CPC title

• A01D69/08 Primary

  Clutches · CPC title

• A01D34/6806

  Driving mechanisms (for the cutters A01D34/76) · CPC title