Mower with cutting protection mechanism

Patent metadata

Field	Value
Publication number	US-2026068813-A1
Application number	US-202519390412-A
Country	US
Kind code	A1
Filing date	Nov 14, 2025
Priority date	Oct 13, 2015
Publication date	Mar 12, 2026
Grant date	—

Abstract

A mower comprising a cutting mechanism configured to execute a cutting operation; a machine body, wherein the machine body is connected with a side part protection which is located in the side of the cutting mechanism to establish a protection barrier in the side of the cutting mechanism; and a bottom protection, located below the cutting mechanism to establish a protection barrier below the cutting mechanism, wherein the bottom protection is provided with a grass inlet. A human body is prevented from making contact with the cutting mechanism from the side direction of the cutting mechanism, the bottom protection can prevent the human body from making contact with the cutting mechanism from the lower side of the cutting mechanism, and the bottom protection is provided with a grass inlet such that the cutting can be smoothly performed.

First claim

What is claimed is:

1 . A mower comprising:
a cutting mechanism configured to execute a cutting operation; a machine body; a moving part movably arranged relative to other parts of the machine body; and a driving mechanism configured to drive the moving part to move, wherein the moving part drives the cutting mechanism to move during a movement of the moving part.

2 . The mower of claim 1 , wherein the moving part is movable to extend the cutting mechanism beyond a profile of the machine body, so as to expand a cutting range of the mower.

3 . The mower of claim 1 , wherein the driving mechanism drives the moving part to move translationally, and the moving part drives the cutting mechanism to move translationally during the movement of the moving part.

4 . The mower of claim 1 , wherein the driving mechanism drives the moving part to slide, and the moving part drives the cutting mechanism to slide during its movement.

5 . The mower of claim 1 , wherein the driving mechanism drives the moving part to rotate, and the moving part drives the cutting mechanism to rotate during its movement.

6 . The mower of claim 1 , wherein:
the machine body is further provided with an elastic element, and the elastic element is configured to be compressed when the cutting mechanism is subjected to a pressure, and to provide an elastic force for enabling the moving part to drive the cutting mechanism to return after the pressure disappears.

7 . The mower of claim 1 , wherein the driving mechanism comprises:
a worm gear connected to the moving part; a worm matched with the worm gear; and a motor configured to drive the worm to rotate, wherein when the motor drives the worm to rotate, the worm gear is configured to drive the moving part to rotate around an axis of the worm gear.

8 . The mower of claim 1 , wherein the mower further comprises a side part protection that is located on a side of the cutting mechanism to establish a first protection barrier on the side of the cutting mechanism.

9 . The mower of claim 1 , wherein the mower further comprises a bottom protection that is located under the cutting mechanism to establish a second protection barrier below the cutting mechanism.

10 . The mower of claim 9 , wherein the bottom protection comprises a grass inlet.

11 . The mower of claim 9 , wherein a length of the bottom protection is greater than or equal to a cutting diameter of the cutting mechanism.

12 . The mower of claim 9 , wherein the moving part is configured to drive a side part protection of the mower and the bottom protection to move together with the cutting mechanism.

13 . The mower of claim 12 , wherein a height of one or more cutting elements of the cutting mechanism is adjustable, and the side part protection and the bottom protection are ascended and descended by following the one or more cutting elements.

14 . The mower of claim 10 , wherein the grass inlet is a strip-shaped slit and an angle range between a forming direction of the grass inlet and an advancing direction of the mower is 0-45 degrees.

15 . The mower of claim 10 , wherein a width of the grass inlet in a direction vertical to an advancement direction of the mower is less than 13 mm.

16 . The mower of claim 1 , wherein the mower further comprises:
a control module and a traveling module arranged on the machine body, wherein the control module is electrically connected to the traveling module to control the traveling module to travel and steer, and the control module is electrically connected to the cutting mechanism to control the cutting mechanism to execute a cutting operation.

Assignees

• Positec Power Tools Suzhou Co Ltd

Inventors

• Ran Yuanzhong
• Du Jiang
• Sun Yunhong
• Zha Xiahong
• Zhao Fengli

Classifications

• A01D34/84 Primary

  for edges of lawns or fields, e.g. for mowing close to trees or walls ({for embankments A01D34/86 takes precedence;} edge trimmers A01G3/00) · CPC title

• A01D34/828

  Safety devices · CPC title

• A01D34/008

  for automated or remotely controlled operation · CPC title

• A01D34/63

  having cutters rotating about a vertical axis · CPC title

• A01D34/81

  Casings; Housings (A01D34/71 takes precedence) · CPC title