US 12,471,525 B2
Mower with cutting protection mechanism
Yuanzhong Ran, Suzhou (CN); Jiang Du, Suzhou (CN); Yunhong Sun, Suzhou (CN); Xiahong Zha, Suzhou (CN); and Fengli Zhao, Suzhou (CN)
Assigned to Positec Power Tools (Suzhou) Co., LTD., Suzhou (CN)
Filed by Positec Power Tools (Suzhou) Co., Ltd., Suzhou (CN)
Filed on Jan. 18, 2022, as Appl. No. 17/578,228.
Application 17/578,228 is a continuation of application No. 16/805,108, filed on Feb. 28, 2020, abandoned.
Application 16/805,108 is a continuation of application No. 15/319,516, granted, now 10,575,465, issued on Mar. 3, 2020, previously published as PCT/CN2016/101718, filed on Oct. 11, 2016.
Claims priority of application No. 201510657242.2 (CN), filed on Oct. 13, 2015; application No. 201510811393.9 (CN), filed on Nov. 20, 2015; application No. 201510811500.8 (CN), filed on Nov. 20, 2015; and application No. 201510811948.X (CN), filed on Nov. 20, 2015.
Prior Publication US 2022/0132734 A1, May 5, 2022
Int. Cl. A01D 34/74 (2006.01); A01D 34/00 (2006.01); A01D 34/63 (2006.01); A01D 34/81 (2006.01); A01D 34/82 (2006.01); A01D 34/84 (2006.01)
CPC A01D 34/74 (2013.01) [A01D 34/008 (2013.01); A01D 34/63 (2013.01); A01D 34/81 (2013.01); A01D 34/828 (2013.01); A01D 34/84 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A mower comprising:
a cutting mechanism;
a protection mechanism comprising a side part protection and a bottom protection;
a machine body comprising a moving part configured to drive the side part protection and the bottom protection to move together with the cutting mechanism; and
a driving mechanism configured to drive the moving part to move,
wherein:
the cutting mechanism is configured to be eccentrically arranged below the machine body, deviated to one side of the machine body;
the side part protection is located on a side of the cutting mechanism to establish a first protection barrier on the side of the cutting mechanism;
the bottom protection is located under the cutting mechanism to establish a second protection barrier below the cutting mechanism, and the bottom protection comprises a grass inlet;
positions of the side part protection and the bottom protection on the machine body are deviated to one side of the machine body;
a deviated direction of the side part protection and a deviated direction of the bottom protection is same as a deviated direction of the cutting mechanism; and
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, and 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.