{
  "$type": "site.standard.document",
  "description": "Provided is a hand-propelled working machine including a body; a traveling wheel group including wheels; a motor including a motor shaft for driving wheels to rotate; a controller; a transmission mechanism for implementing transmission between the motor shaft and the wheels and having a first state…",
  "path": "/patents/1392461",
  "publishedAt": "2025-09-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "A01D34/6812",
    "NANJING CHERVON IND CO LTD [CN]"
  ],
  "textContent": "Provided is a hand-propelled working machine including a body; a traveling wheel group including wheels; a motor including a motor shaft for driving wheels to rotate; a controller; a transmission mechanism for implementing transmission between the motor shaft and the wheels and having a first state and a second state, where when the transmission mechanism is in the second state, the wheels are rotatable freely relative to the motor shaft; and an operation member operated to have at least a first operation state for controlling the motor to start and a second operation state for controlling the motor to stop; where when the operation member is switched from the first operation state to the second operation state, a target rotational speed of the motor is set to a first rotational speed so that the transmission mechanism is switched from the first state to the second state, where the first rotational speed is a negative rotational speed. The negative rotational speed is applied to the motor, achieving the shutdown and trip of the motor and a clutch and high trip reliability.",
  "title": "HAND-PROPELLED WORKING MACHINE"
}