公开(公告)号：US20210022287A1

公开(公告)日：2021-01-28

申请号：US17066502

申请日：2020-10-09

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Jianpeng Guo ,  Toshinari Yamaoka ,  Fangjie Nie ,  Qi Zhang ,  Zongjing Li ,  Fei Wang ,  Lanxi Xu

IPC: A01D34/416

Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.

公开(公告)号：US20230112033A1

公开(公告)日：2023-04-13

申请号：US18078961

申请日：2022-12-11

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Jianpeng Guo ,  Toshinari Yamaoka ,  Fangjie Nie ,  Qi Zhang ,  Zongjing Li ,  Fei Wang ,  Lanxi Xu

IPC: A01D34/416

Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.

公开(公告)号：US11910743B2

公开(公告)日：2024-02-27

申请号：US17402976

申请日：2021-08-16

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Jianpeng Guo ,  Toshinari Yamaoka ,  Fangjie Nie ,  Qi Zhang ,  Zongjing Li ,  Fei Wang ,  Lanxi Xu

IPC: A01D34/416 ,  A01D101/00

CPC classification number: A01D34/4166 ,  A01D2101/00

Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.

公开(公告)号：US10856466B2

公开(公告)日：2020-12-08

申请号：US16781147

申请日：2020-02-04

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Jianpeng Guo ,  Toshinari Yamaoka ,  Fangjie Nie ,  Qi Zhang ,  Zongjing Li ,  Fei Wang ,  Lanxi Xu

IPC: A01D34/416 ,  A01D101/00

Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.

公开(公告)号：US20240188487A1

公开(公告)日：2024-06-13

申请号：US18519868

申请日：2023-11-27

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Jianpeng Guo ,  Toshinari Yamaoka ,  Fangjie Nie ,  Qi Zhang ,  Zongjing Li ,  Fei Wang ,  Lanxi Xu

IPC: A01D34/416 ,  A01D101/00

CPC classification number: A01D34/4166 ,  A01D2101/00

Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.

公开(公告)号：US11503759B2

公开(公告)日：2022-11-22

申请号：US17066502

申请日：2020-10-09

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Jianpeng Guo ,  Toshinari Yamaoka ,  Fangjie Nie ,  Qi Zhang ,  Zongjing Li ,  Fei Wang ,  Lanxi Xu

IPC: A01D34/416 ,  A01D101/00

Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.

公开(公告)号：US20210368676A1

公开(公告)日：2021-12-02

申请号：US17402976

申请日：2021-08-16

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Jianpeng Guo ,  Toshinari Yamaoka ,  Fangjie Nie ,  Qi Zhang ,  Zongjing Li ,  Fei Wang ,  Lanxi Xu

IPC: A01D34/416

Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.

公开(公告)号：US20200170182A1

公开(公告)日：2020-06-04

申请号：US16781147

申请日：2020-02-04

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Jianpeng Guo ,  Toshinari Yamaoka ,  Fangjie Nie ,  Qi Zhang ,  Zongjing Li ,  Fei Wang ,  Lanxi Xu

IPC: A01D34/416

Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.