Husqvarna

A surface levelling device (100) comprises a coupling part (102) configured to be couplable to a handle, and a surface levelling frame (104) configured to level a surface by contacting the surface with the surface levelling frame (104) in an assembled state. The coupling part (102) is connected to the surface levelling frame (104). The surface levelling device (100) is characterized in that the surface levelling frame (104) is configured to be disassembled into a plurality of parts in a disassembled state.

An attachment element (124) for a gardening device (100) is formed from a middle part (136) and two side parts (134) connected by the middle part (136). The attachment element (124) comprises a coupling portion (138) formed on at least one of the two side parts (134), and configured such that the attachment element (124) is couplable to a handle (104) of the gardening device (100). The attachment element (124) also comprises a connecting section (140) formed on the middle part (136) and/or on at least one of the two side parts (134) and configured to connect a collecting bag fastening element (126) to the attachment element (124). The collecting bag fastening element (126) is configured to connect the collecting bag (122) and the gardening device (100) and further support the collecting bag (122) in an operational position. The attachment element (124) further comprises a storage portion (142) formed on at least one of the two side parts (134) and configured to hang the collecting bag (122) onto the storage portion (142) in a storage position.

A surface levelling device (100) comprises a surface levelling frame (104), and a handle (101). The handle (101) is rotatably mounted to the surface levelling frame (104). The surface levelling device (100) is characterized in that the handle (101) is lockable relative to the surface levelling frame (104) at a pre-defined angular position.

An apparatus (100) having a load (102) is provided. The apparatus (100) comprises an AC power supply (104) having a first high side (108) and a first low side (110), and a DC power supply (106) having a second high side (112) and a second low side (114). A common ground (116) connects the first low side (110) and the second low side (114). The apparatus (100) is characterized in that a first switch (118) is connected to the first high side (108) to the load (102) and operates the apparatus (100) in a high voltage operation mode in which the AC power supply (104) is provided to the load (102). A second switch (120) is connected to the second high side (112) to the load (102) and operates the apparatus (100) in a low voltage operation mode in which the DC power supply (106) is provided to the load (102).

A power tool (100) and a method (300) for operating the same are provided. The power tool (100) includes an electric motor (112), an AC power supply (102) to provide an AC input voltage, and a rectifier (104) to convert the AC input voltage to a rectified DC voltage. The power tool (100) includes an inductor-capacitor (LC) circuit (106) to convert the rectified DC voltage to an output DC voltage, a pulse width modulated (PWM) switch (108) to control the output DC voltage, and a controller (110) to control the PWM switch (108). An internal inductor (118) of the electric motor (112) extends the LC circuit (106) to an inductor-capacitor-inductor (LCL) circuit (122). The controller (110) is configured to control a duty cycle of the PWM switch (108) such that an input current from the AC power supply (102) is sinusoidal and in-phase with the AC input voltage.

A heat sink unit (1) is disclosed configured to conduct heat away from an electronic assembly (3). The heat sink unit (1) comprises a top side (11) comprising a plurality of heat sink members (11') and a bottom side (12) comprising a heat transferring section (2, 2') configured to be in heat exchanging contact with a portion (13, 13') of the electronic assembly (3). The bottom side (12) comprises a number of profiled surfaces (s1, s2, s3, s4) each comprising a series of adjacent ridges (4) and grooves (6). The present disclosure further relates to an electronic arrangement (10) and a robotic lawnmower (30).

A filament trimmer head (100) comprises a spool holder (102) with a spool (104) mounted inside, covered by a spool cover (106) with a circular through hole (138). A bump button (126) via it's stem (128) formed on the upper surface (122) of the spool (104), extends outward through the circular through hole (138). Additionally, a first coupling feature (130) formed on the upper surface (122) of the spool (104) extends towards the bump button (126). The filament trimmer head (100) is characterized in that a seal (134) is configured to engage and surround the stem (128) of the bump button (126). The seal (134) extends from the inner side (150) of the spool cover (106) facing the spool (104) along the stem (128) of the bump button (126) to the upper surface (122) of the spool (104). The seal (134) also comprises a second coupling feature (132) configured to couple with the first coupling feature (130) formed on the upper surface (122) of the spool (104), further allowing the seal (134) and the spool (104) to cooperate therewith.

The present disclosure relates to a robotic lawn mower interaction station (200) adapted to receive a robotic lawn mower (100), where the interaction station (200) comprises a charging tower (201) that has a charging transmission arrangement (210) and is positioned on a ground plate (202). The interaction station (200) further comprises at least one marker (220, 221, 222) that is positioned to be readable by a robotic lawn mower camera arrangement (170) when the robotic lawn mower (100) is approaching the interaction station (200). Furthermore, the marker (220, 221, 222) is positioned behind a protective layer (223, 224) having such properties that the marker (220, 221, 222) is readable by the robotic lawn mower camera arrangement (170), through the protective layer (223, 224).

The present disclosure relates to a robotic lawn mower interaction station (200, 200') adapted to receive an oncoming robotic lawn mower (100, 100'). The interaction station (200, 200') comprises a charging tower (201) with a charging transmission arrangement (210) that is adapted to provide a charge current, delivered from a station charging unit (202), to a charging reception arrangement (156) of a docked robotic lawn mower (100, 100'). The interaction station (200, 200') comprises a reception ground plate (203, 203') that extends from the charging tower (201) towards a frontmost part (204), comprised in an entering edge (205). The ground plate (203, 203') is constituted by a plate part (206, 206') and one ridge part (207, 207') that extends a certain ridge height (h) from the plate part (206, 206').

A method for use in robotic lawnmower system comprising a robotic lawnmower (100) arranged to operate in an outdoor operational area (205), and the robotic lawnmower comprising controller (110), a memory (120), a navigation sensor (175), one or more sensors (180, 185), the memory (120) being configured to store a map application (120A) and to store data regarding sensor readings, and wherein the method comprises causing the robotic lawnmower (100) to traverse the operational area, and while doing so receiving sensor readings causing a data model of the operational area to be generated based on the stored sensor readings and causing an artificial intelligence scheduling module to be trained on the data model according to one or more operating criteria whereby the artificial intelligence scheduling module is trained to schedule operation of the robotic lawnmower in the operational area based on the sensor readings and with the aim of fulfilling the one or more operating criteria