The present application discloses an integrated trimmer device that is attached to the existing wheel fixture of a lawnmower. The integrated trimmer device may be used as a string trimmer or as a lawn edger. There is an ongoing desire by those in the art to increase the efficiency of mowing and trimming activities. Combining the two activities into one task helps provide for such need.

The present invention relates to a string or blade trimmer extension that can be integrated or retrofitted to a push lawnmower or riding lawnmower. The trimmer extension is attached to the inside deck of the lawnmower or to the frame and includes a linear track having channels allowing the trimmer head to extend outward from the deck and retract back into the deck. The trimming head has blades, or trimming lines, that are selectively operated by a user using the control handle and control button disposed on the lawnmower. The speed of rotation and angle of rotation can be adjusted using the control button while the height of the extension device can also be adjusted. The extension device allows a user to perform mowing and trimming weeds in different modes of operation.

The present invention relates to a string or blade trimmer extension that can be integrated or retrofitted to a push lawnmower or riding lawnmower. The trimmer extension is attached to the inside deck of the lawnmower or to the frame and includes a linear track having channels allowing the trimmer head to extend outward from the deck and retract back into the deck. The trimming head has blades, or trimming lines, that are selectively operated by a user using the control handle and control button disposed on the lawnmower. The speed of rotation and angle of rotation can be adjusted using the control button while the height of the extension device can also be adjusted. The extension device allows a user to perform mowing and trimming weeds in different modes of operation.

The disclosure provides a string trimmer. The string trimmer includes a protective shield, a first motor, a blade and a fan. The first motor is arranged on one side of the protective shield, and a first rotation shaft of the first motor penetrates the protective shield to the other side of the protective shield. The blade is arranged on the other side of the protective shield, and the blade is connected with the first rotation shaft. The fan is arranged on the same side as the first motor, and the fan is mounted on the protective shield through a second rotation shaft. Wherein, a rotation speed ratio between the second rotation shaft and the first rotation shaft ranges from 0.5 to 4. With the string trimmer of the disclosure, the rotation speed of the blade and the fan are different.

The disclosure provides a string trimmer. The string trimmer includes a protective shield, a first motor, a blade and a fan. The first motor is arranged on one side of the protective shield, and a first rotation shaft of the first motor penetrates the protective shield to the other side of the protective shield. The blade is arranged on the other side of the protective shield, and the blade is connected with the first rotation shaft. The fan is arranged on the same side as the first motor, and the fan is mounted on the protective shield through a second rotation shaft. Wherein, a rotation speed ratio between the second rotation shaft and the first rotation shaft ranges from 0.5 to 4. With the string trimmer of the disclosure, the rotation speed of the blade and the fan are different.

A device for trimming around stationary objects is disclosed as a rotary mowing attachment with a cutting head assembly slidably coupled to a carrier assembly that is positioned by a slope control circuit and controller. The cutting head assembly has at least two counter-rotating blades, at least one rotator motor configured to rotate the cutting head assembly about a cutting head central axis, at least one blade drive motor configured to drive the at least two counter-rotating blades, and at least one lateral motion drive motor configured to move the cutting head assembly position relative to the carrier assembly.

A device for trimming around stationary objects is disclosed as a rotary mowing attachment with a cutting head assembly slidably coupled to a carrier assembly that is positioned by a slope control circuit and controller. The cutting head assembly has at least two counter-rotating blades, at least one rotator motor configured to rotate the cutting head assembly about a cutting head central axis, at least one blade drive motor configured to drive the at least two counter-rotating blades, and at least one lateral motion drive motor configured to move the cutting head assembly position relative to the carrier assembly.

The standing motorized lawn mower comprises a mower and a sulky. The standing motorized lawn mower may be adapted to allow a user to stand on the sulky as the sulky is pulled by the mower. The mower may be steered using a steering column. A touch sensitive display located on the steering column may be adapted to provide functional control of the standing motorized lawn mower to the user. The steering column may provide a phone holder, a cup holder, and an earphone jack. One or more string trimmers located on the front of the mower may trim grass at the edge of a mowing area.

An autonomous lawn mower (100) comprises a mower body (102) having at least one motor (210) arranged to drive a cutting blade (212b) and to propel the mower body (102) on an operating surface via a wheel arrangement. The mower body (102) includes a navigation system (204) arranged to assist a controller (202) to control the operation of the mower body (102) within the predefined operating area (208). The navigation system includes an odometry module (106, 220), a rotatable optical surveying module (222), a sonic obstacle detection module (224), a heat absorbing unit set on the outer surface of the mower body (102) for directing the heat generated within the mower body towards the atmosphere, and a detachable docking module (816) arranged to receive the mower body (102).

An autonomous lawn mower (100) comprises a mower body (102) having at least one motor (210) arranged to drive a cutting blade (212b) and to propel the mower body (102) on an operating surface via a wheel arrangement. The mower body (102) includes a navigation system (204) arranged to assist a controller (202) to control the operation of the mower body (102) within the predefined operating area (208). The navigation system includes an odometry module (106, 220), a rotatable optical surveying module (222), a sonic obstacle detection module (224), a heat absorbing unit set on the outer surface of the mower body (102) for directing the heat generated within the mower body towards the atmosphere, and a detachable docking module (816) arranged to receive the mower body (102).