IP Library Granted Patent US 12,604,801
Granted Patent B2
US 12,604,801 · App. 19/068,586 · Granted Apr 21, 2026

Handle and switch assembly for a mower

Inventors: Toshinari Yamaoka (Nanjing, CN); Fangjie Nie (Nanjing, CN); Haishen Xu (Nanjing, CN); Xiandian Shao (Nanjing, CN)
Assignee: Chervon (HK) Limited
A01D34/824A01D34/67A01D34/6806A01D34/828A01D69/02A01D69/10A01D2034/6843A01D2101/00
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Quick Facts
Patent No.
US 12,604,801
App. No.
19/068,586
Granted
Apr 21, 2026
Kind
B2
Abstract

A gardening tool, such as a mower, has a main body having an accessory, such as a mowing blade, and a motor for driving the accessory. A handle is rotatably connected to the main body. At least one operation assembly is associated with the handle for being operated by a user to control the motor when the handle is located in a predetermined position. A control system prevents the motor from being controlled by the operation assembly and halts the motor when the handle is located out of the predetermined position.

Claims (33)

1 . A mower, comprising

a main body;

a handle comprising a first connecting rod connected to the main body, a second connecting rod connected to the main body, a grip portion connected to both the first connecting rod and the second connecting rod at a rear end of the handle and extending therebetween, and a connection device comprising a transverse connection portion connecting the first connecting rod and the second connecting rod extending between the first connecting rod and the second connecting rod and being separate from the grip portion and proximately located to the grip portion and a lateral protrusion portion extending from the transverse connection portion;

a switch, capable of starting the mower, mounted to the connection device; and

a trigger pivotally mounted to the lateral protrusion portion and operably coupled to the switch, the trigger being pivotally to trigger the switch.

2 . The mower according to claim 1 , wherein the first connecting rod and the second connecting rod are rotatably connected to the main body through a rotation shaft.

3 . The mower according to claim 2 , further comprising: a second switch mounted to the main body and a trigger member configured to trigger the second switch, wherein the trigger member triggers the second switch when the handle rotates to a working position.

4 . The mower according to claim 3 , wherein the trigger member moves away from the second switch when the handle rotates to a non-working position.

5 . The mower according to claim 3 , further comprising: a blade, a motor configured to drive the blade, and a control circuit for controlling the motor, wherein the second switch is connected in series in the control circuit.

6 . The mower according to claim 1 , further comprising: a control circuit for controlling the mower, wherein the switch is connected in series in the control circuit.

7 . The mower according to claim 1 , wherein the switch is a contact switch.

8 . The mower according to claim 1 , wherein the switch is a proximity switch, a Hall switch, or a photoelectric switch.

9 . The mower according to claim 1 , further comprising: a motor, and a power supply circuit for transmitting electrical energy to the motor, wherein the switch is capable of sending a control signal to the power supply circuit.

10 . The mower according to claim 1 , wherein the trigger is pivotally mounted to the lateral protrusion portion of the transverse connection portion.

11 . A walking behind power tool, comprising:

a main body;

a handle comprising a first connecting rod connected to the main body, a second connecting rod connected to the main body, a grip portion connected to both the first connecting rod and the second connecting rod, and a T-shaped connection device connecting the first connecting rod and the second connecting rod extending between the first connecting rod and the second connecting rod and being separate from the grip portion and proximately located to the grip portion;

a motor;

a switch mounted to the T-shaped connection device and electrically coupled to the motor and a power supply to control whether an operating power from the power supply is supplied to the motor; and

a trigger pivotally mounted to the T-shaped connection device and operably coupled to the switch, the trigger being pivotally operable to trigger the switch, mounted to the T-shaped connection device.

12 . The walking behind power tool according to claim 11 , further comprising: a control circuit for controlling the motor, wherein the switch is connected in series in the control circuit.

13 . The walking behind power tool according to claim 11 , wherein the switch is a contact switch.

14 . The walking behind power tool according to claim 11 , wherein the switch is a proximity switch, a Hall switch, or a photoelectric switch.

15 . The walking behind power tool according to claim 11 , further comprising: a power supply circuit for transmitting electrical energy to the motor, wherein the switch is capable of sending a control signal to the power supply circuit.

16 . A mower, comprising:

a main body comprising a motor and a mowing blade;

a handle comprising a first connecting rod connected to the main body, a second connecting rod connected to the main body, a grip portion connected to both the first connecting rod and the second connecting rod at a rear end of the handle and extending therebetween, a connection device comprising a transverse connection portion connecting the first connecting rod and the second connecting rod extending between the first connecting rod and the second connecting rod and being separate from the grip portion and proximately located to the grip portion and a lateral protrusion portion extending backward from the transverse connection portion;

a trigger pivotally mounted to the lateral protrusion portion and pivotally operable to start or stop the motor, and disposed at a front side of the grip portion; and

a switch electrically coupled to the trigger and the motor, the switch being controlled by the trigger.

17 . The mower according to claim 16 , further comprising: a control circuit for controlling the motor, wherein the switch is connected in series in the control circuit.

18 . The mower according to claim 16 , wherein the switch is a contact switch.

19 . The mower according to claim 16 , wherein the switch is a proximity switch, a Hall switch, or a photoelectric switch.

20 . The mower according to claim 16 , further comprising: a power supply circuit for transmitting electrical energy to the motor, wherein the switch is capable of sending a control signal to the power supply circuit.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 3, 2025
From: YAMAOKA, TOSHINARI; NIE, FANGJIE; XU, HAISHEN; SHAO, XIANDIAN
To: CHERVON (HK) LIMITED
Reel/Frame 070383/0609 →
Priority Claims (4)
CN 201210387914.9 · Oct 15, 2012 · national
CN 201220602040.X · May 3, 2013 · national
CN 201310468919.9 · Oct 10, 2013 · national
CN 201410167041.X · Apr 23, 2014 · national
Continuity (11)
Continuation 17941652 · Sep 9, 2022
Continuation 17570032 · Jan 6, 2022
Continuation 16824858 · Mar 20, 2020
Continuation 16670821 · Oct 31, 2019
Continuation 16406337 · May 8, 2019
Continuation 15910282 · Mar 2, 2018
Continuation 15250476 · Aug 29, 2016
Continuation In Part 15238276 · Aug 16, 2016
Continuation 14511490 · Oct 10, 2014
Continuation 14048158 · Oct 8, 2013
Related Publication 20250221342A1 · Jul 10, 2025
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