公开(公告)号：US20240191777A1

公开(公告)日：2024-06-13

申请号：US18287777

申请日：2021-04-23

Applicant: TECHTRONIC CORDLESS GP

Inventor： Koon For CHUNG ,  Tsz Kin WONG

IPC: F16H1/32 ,  A01D34/416 ,  A01D34/73

CPC classification number: F16H1/32 ,  A01D34/4165 ,  A01D34/733

Abstract: Systems and methods which provide force amplified fastener assemblies configured for use with respect to detachable implements for power tools are described. Force amplified fastener assemblies may implement various gear train configurations for giving a mechanical advantage with respect to manual manipulation of the fastener assembly. A force amplified fastener assembly may include a lock mechanism operative to lock and/or unlock the force amplified fastener assembly and thus a fastening element thereof. Force amplified fastener assemblies of embodiments of the inventions may be utilized in place of conventional lock nut for affixing detachable implements to power tools.

公开(公告)号：US20240188490A1

公开(公告)日：2024-06-13

申请号：US18287761

申请日：2022-04-22

Applicant: TECHTRONIC CORDLESS GP

Inventor： Koon For CHUNG ,  Tsz Kin WONG

IPC: A01D34/73 ,  A01D34/416

CPC classification number: A01D34/733 ,  A01D34/416

Abstract: Systems and methods which provide force amplified fastener assemblies configured for use with respect to detachable implements for power tools are described. Force amplified fastener assemblies may implement various gear train configurations for giving a mechanical advantage with respect to manual manipulation of the fastener assembly. A force amplified fastener assembly may include a lock mechanism operative to lock and/or unlock the force amplified fastener assembly and thus a fastening element thereof. In some examples, a force amplified fastener assembly may include a grasping member assembly for facilitating manual application of torque. Additionally or alternatively, a force amplified fastener assembly may include a removable and replaceable external surface covering configured to protect at least a portion of the force amplified fastener assembly. Force amplified fastener assemblies of embodiments of the invention may be utilized in place of a conventional lock nut for affixing detachable implements to power tools.

公开(公告)号：US20230055153A1

公开(公告)日：2023-02-23

申请号：US17794877

申请日：2021-01-21

Applicant: TECHTRONIC CORDLESS GP

Inventor： WAI CHUNG LEE ,  Koon For CHUNG ,  Weiwei AN ,  Wai For WONG

IPC: A46B13/04 ,  B05B7/24 ,  B08B3/02

Abstract: The invention provides a rugged cleaning device configured to clean outdoor surfaces using a variety of fluids and techniques. The outdoor cleaning device includes a brush head, a motor and a transmission for providing a driving force to the brush head, a fluid tank for storing a fluid (e.g., a cleaning solution or detergent), and a controller for controlling mixing (or not mixing) the fluid stored in the fluid tank during operation of the outdoor cleaning device. The controller may enable fluid from the cleaning tank to be mixed with a second fluid (e.g., water) prior to being dispensed via a plurality of nozzles. The nozzles may be formed via grooves on an inner cover and an outer cover may be provided to close off the grooves to form fluid channels. The fluid channels enable the distribution of cleaning fluids in various directions, enhancing the brush head's cleaning capability.

公开(公告)号：US20230301234A1

公开(公告)日：2023-09-28

申请号：US18187513

申请日：2023-03-21

Applicant: TECHTRONIC CORDLESS GP

Inventor： Koon For CHUNG ,  Yan Jia WANG

IPC: A01D34/82 ,  A01D69/02

CPC classification number: A01D34/82 ,  A01D69/02 ,  A01D2101/00

Abstract: A garden tool includes a deck, a motor, an implement configured to be driven by the motor, a wheel shaft, and a wheel removably coupled to the wheel shaft by way of a toolless shaft nut assembly. The toolless shaft nut assembly configured to self-lock.

公开(公告)号：US20230276733A1

公开(公告)日：2023-09-07

申请号：US18178243

申请日：2023-03-03

Applicant: TECHTRONIC CORDLESS GP

Inventor： Tsz Kin WONG ,  Koon For CHUNG

IPC: A01D34/82 ,  A01D34/66 ,  A01D34/00

CPC classification number: A01D34/82 ,  A01D34/661 ,  A01D34/008 ,  A01D34/668 ,  A01D2101/00

Abstract: A garden tool includes a drive shaft, a driven implement, and a locking cap configured to removably secure the drive shaft and the driven implement relative to each other. The locking cap is self-locking to inhibit loosening. The locking cap may include a ratchet mechanism. The garden tool may include a vegetation cutter.

公开(公告)号：US20230053531A1

公开(公告)日：2023-02-23

申请号：US17794887

申请日：2021-01-21

Applicant: TECHTRONIC CORDLESS GP

Inventor： WAI CHUNG LEE ,  Koon For CHUNG ,  Weiwei AN ,  Wai For WONG

IPC: B08B3/02 ,  B08B1/00 ,  B08B1/04 ,  A46B13/00 ,  A46B13/04 ,  H01M50/247 ,  H01M50/271 ,  H01M50/262 ,  A46B5/00 ,  B05B7/24 ,  E01H1/05

Abstract: The invention provides a rugged cleaning device configured to clean outdoor surfaces using a variety of fluids and techniques. The outdoor cleaning device includes a brush head, a motor and a transmission for providing a driving force to the brush head, a fluid tank for storing a fluid (e.g., a cleaning solution or detergent), and a controller for controlling mixing (or not mixing) the fluid stored in the fluid tank during operation of the outdoor cleaning device. The controller may enable fluid from the cleaning tank to be mixed with a second fluid (e.g., water) prior to being dispensed via at least one nozzle. The at least one nozzle may be secured to a guard cover via grooves on an inner guard cover and an outer guard cover. The nozzle(s) enables the distribution of cleaning fluids in various directions, enhancing the brush head's cleaning capability.