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公开(公告)号：US20200367451A1
公开(公告)日：2020-11-26
申请号：US16877793
申请日：2020-05-19
Applicant: Nanjing Chervon Industry Co., Ltd.
Inventor： Fangjie Nie , Chengxin Pan , Toshinari Yamaoka
Abstract: A sweeper head includes a cleaning device, a transmission shaft, and a shield. The cleaning device includes a rolling member rotatable about a first axis and a cleaning element. The transmission shaft is rotatable about a second axis. The shield includes a surrounding portion for surrounding at least a part of the cleaning element. The surrounding portion includes a front surrounding portion and a rear surrounding portion located on two sides of a first plane and the first plane passes through the second axis and is parallel to the first axis. The ratio of a maximum measurement of the front surrounding portion in a direction parallel to the first axis to a maximum measurement of the rear surrounding portion in the direction is greater than or equal to 2 and is less than or equal to 3.
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公开(公告)号：US20200344947A1
公开(公告)日：2020-11-05
申请号：US16933036
申请日：2020-07-20
Applicant: Nanjing Chervon Industry Co., Ltd.
Inventor： Yu Yan , Toshinari Yamaoka , Fangjie Nie , Haishen Xu , Yangzi Liu
Abstract: A self-propelled machine includes a drive motor, a handle having two grips, an electromechanical converting device, and a speed adjusting element configured to move relative to the handle to adjust a rotational speed of the drive motor and configured to be operated by a user when the user holds one of the two grips with a single hand. The speed adjusting element is disposed between the two grips. The electromechanical converting device is configured to convert a positional change of the speed adjusting element into an electrical signal for adjusting the rotational speed of the drive motor. The speed adjusting element is movable between a first position and a second position. The rotational speed of the drive motor when the speed adjusting element is in the first position is greater than the rotational speed of the drive motor when the speed adjusting element is in the second position.
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公开(公告)号：US20200315095A1
公开(公告)日：2020-10-08
申请号：US16909549
申请日：2020-06-23
Applicant: Nanjing Chervon Industry Co., Ltd.
Inventor： Qian Liu , Toshinari Yamaoka , Zhen Wang , Fangjie Nie
Abstract: An electric riding lawn mower includes a seat for a user to ride, a main frame to support the seat, a power output assembly including a mowing element to output power to realize mowing function and a first motor to drive the mowing element, a walking assembly to at least drive the electric riding lawn mower to travel in the direction of a first straight line on the ground and a second motor to drive the walking assembly, and a power supply device to power the electric riding lawn mower with a first battery pack, which includes a first battery pack housing and a plurality of battery cells disposed therein. The power supply device is mounted to the main frame. At least one of the first battery packs of the power supply device forms a pluggable connection with the main frame. The battery cells are lithium batteries.
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公开(公告)号：US20190216013A1
公开(公告)日：2019-07-18
申请号：US16363609
申请日：2019-03-25
Applicant: Nanjing Chervon Industry Co., Ltd.
Inventor： Jianpeng Guo , Maohui Li , Fangjie Nie , Toshinari Yamaoka
IPC: A01D34/416
CPC classification number: A01D34/4163 , A01D34/4165 , A01D34/4166
Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation, and an operating device for use in controlling the driving device. The trimming head includes a spool and a line holding element formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding element to make the spool and the line holding element rotate relatively so that a trimming line is wound on the spool automatically.
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