US 12,219,897 B2
All-wheel drive self-propelled assembly and mower
Feng Jiang, Changzhou (CN)
Assigned to Globe (Jiangsu) Co., Ltd., Changzhou (CN)
Filed by Globe (Jiangsu) Co., Ltd., Changzhou (CN)
Filed on Jun. 23, 2021, as Appl. No. 17/355,209.
Claims priority of application No. 202021261751.6 (CN), filed on Jul. 2, 2020.
Prior Publication US 2022/0000021 A1, Jan. 6, 2022
Int. Cl. A01D 34/69 (2006.01); A01D 34/74 (2006.01); A01D 101/00 (2006.01)
CPC A01D 34/74 (2013.01) [A01D 34/69 (2013.01); A01D 2101/00 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An all-wheel drive self-propelled assembly (100), comprising:
a front-drive unit (10), including:
a front transmission mechanism (11) having a front motor (113),
a front-wheel shaft mechanism (12), having a pair of front shaft plates (121) and a front linkage rod (122) that connects the pair of front shaft plates (121) and
front-wheels (14),
wherein the front transmission mechanism (11) and the front-wheels (14) are mounted on the pair of front shaft plates (121);
a rear-drive unit (20), including:
a rear transmission mechanism (21) having a rear motor (213),
a rear-wheel shaft mechanism (22), having a pair of rear shaft plates (221) and a rear linkage rod (222) that connects the pair of rear shaft plates (221), and
rear-wheels (24),
wherein the rear transmission mechanism (21) and the rear-wheels (24) are mounted on the pair of rear shaft plates (221); and
a height adjusting unit (30), which directly or indirectly controls the pair of front shaft plates (121) and the pair of rear shaft plates (221) to rotate in order to adjust a distance from the front transmission mechanism (11) and the rear transmission mechanism (21) to a ground surface,
wherein the front linkage rod (122) is rotatably disposed above a plane where axes of the front transmission mechanism (11) and the rear transmission mechanism (21) are located,
wherein the front linkage rod (122) is provided with a front avoidance groove (1221) that cooperates with the front transmission mechanism (11),
the front transmission mechanism (11) is provided with a front output shaft (112), and the pair of front shaft plates (121) are pivotally mounted on the front output shaft (112);
the rear transmission mechanism (21) is provided with a rear output shaft (212), and the pair of rear shaft plates (221) are pivotally mounted on the rear output shaft (212); and
when the distance between the front output shaft (112) and the ground surface is minimum, the front avoidance groove (1221) is disposed above a plane where the front output shaft (112) and the rear output shaft (212) are located.