Abstract: A concrete grinder has a rotating planetary gearbox with counter rotating tooling plates attached. The planetary gearbox is powered directly from a trowel gearbox output shaft, which is connected to a center bore of the planetary gearbox. As the planetary gearbox rotates, tooling shafts are forced to counter rotate because the input shaft of the planetary gearbox is connected to a fixed pulley or sprocket. The planetary gearbox is sealed to keep water, dust or slurry from entering.
Abstract: A battery pack may be configured to power any of a plurality of different outdoor power equipment device types. The battery pack may include one or more rechargeable battery cells configured to power a device to which the battery pack is operably coupled, and processing circuitry. The processing circuitry may include at least a processor and memory. The processing circuitry may be configured to enable configuration of the device or another device of a same device type as the device based on a set of configuration settings stored in the memory.
Type:
Grant
Filed:
October 12, 2021
Date of Patent:
January 10, 2023
Assignee:
HUSQVARNA AB
Inventors:
Jon Funk, Eric Tse, Matthew Albinger, Duncan K. Burns, Jr.
Abstract: A lawn mower may include a blade housing configured to house at least a first blade and a second blade, a shaft disposed to rotate within the blade housing, a powerhead configured to selectively turn the shaft responsive to application of power from a power source, and a blade coupler configured to selectively couple the first blade and/or the second blade to the shaft to produce different cutting performance conditions based on which of the first blade and/or the second blade is operably coupled to the shaft.
Type:
Grant
Filed:
October 30, 2019
Date of Patent:
January 10, 2023
Assignee:
HUSQVARNA AB
Inventors:
Brad Graham, Samuel Lattimore, David Baker, Jonathan Funk
Abstract: The present disclosure relates to a self-propelled robotic tool (1) and a method in a self-propelled robotic tool (1), being used to detecting lifting of the self-propelled robotic device from the ground. The method includes collecting (21) driving data (31) related to the driving of a wheel (5), collecting (23) measured inertia data from an inertial measurement unit (13), IMU, in the self-propelled robotic tool, determining (25), using an estimation function (33), a residual parameter corresponding to a differential between said measured inertia data and estimated inertia data resulting from said driving data being input to said estimation function, and determining a lifting condition based on the residual parameter.
Type:
Grant
Filed:
April 12, 2018
Date of Patent:
January 10, 2023
Assignee:
HUSQVARNA AB
Inventors:
Stefan Grufman, Jonas Rangsjö, Fredrik Kallström
Abstract: The present disclosure relates to a vehicular work machine (10) that is adapted for handling at least two different interchangeable tools (4). The machine (10) also comprises a user control device (11) and a water supply arrangement (31) that is adapted to distribute water for retaining dust that is created when a tool (4) is used, The water supply arrangement (31) comprises a controllable valve (24) that is arranged to control the flow of the water that is distributed via at least one nozzle (29). The user control device (11) is arranged for selection of a desired tool, where at least one selectable tool is associated with a certain predefined water setting. Each water setting relates to a certain relative flow of distributed water during a certain time that is related to the time said tool (4) is chosen and performing a certain work procedure, and/or to the time said tool (4) is chosen and ready to perform a certain work procedure.
Abstract: A blower (100) includes a blower attachment housing (112), a power head housing (122) having a handle (130) operably coupled thereto, a motor (140) disposed in the power head housing (122), a fan (160) disposed in the blower attachment housing (112), a battery (150), and an intake chamber (174) disposed between the motor (140) and the fan (160) to enable the air to enter the blower (100) between the motor (140) and the fan (160).
Type:
Grant
Filed:
December 6, 2017
Date of Patent:
January 3, 2023
Assignee:
HUSQVARNA AB
Inventors:
Ni Zugen, Ming Yang, Li Li, Chad Jones, Garrett Sherman, Jeffrey C. Hickman, David Lawrence Estey
Abstract: The present disclosure related to a robotic working tool 100 comprising a controller 110 and at least a first and at least a second magnetic sensor arranged to sense a magnetic signal. The controller 110 is configured to detect a first magnetic signal; determine a signal strength of the detected first magnetic signal; determine if the signal strength of the detected magnetic signal is above or below a threshold value, and if the signal strength is above the threshold value, accept signal detection input for the first magnetic signal from a first set of sensors, and if the signal strength is below the threshold value, accept signal detection input for the first magnetic signal from a second set of sensors, wherein the second set of sensors is a subset of the first set.
Abstract: A tool holder for a tool belt may include a flexible carrier sheet and at least one belt hanger. The at least one belt hanger may include a belt interface which may be configured to be connected to a tool belt and a carrier sheet connection interface which may be configured to be connected to the carrier sheet. The flexible carrier sheet may include a tool suspension interface which may be configured to connect to a tool or a tool receiver, and a hanger connection interface which may be configured to connect to the carrier sheet connection interface of the belt hanger. The carrier sheet may be configured to connect to the belt hanger by bending the hanger connection interface.
Abstract: A power tool comprising a controller for controlling the operation of the power tool wherein the controller is configured to control operation of the power tool in a default mode and in a low-noise mode, wherein; the controller, is configured to control operation of the power tool in the low-noise mode on basis of predetermined settings that are selected such that the noise output from the power tool in the low-noise mode is lower than the noise output from the power tool in the default mode.
Abstract: Described herein is an arrangement (1) for guiding a wire in a wire binding machine (3), wherein the arrangement (1) comprises a guide member (5) and a first spring (7) arranged to act with a first spring force against the guide member (5), wherein the guide member (5) is arranged to bear against the wire and act against the wire with said first spring force in order to guide the wire during a wire binding process when the wire moves relative to the guide member (5). The guide member (5) is arranged so that a movement of the guide member (5) substantially away from the wire is allowed in order to reduce friction forces between the guide member (5) and the wire during the wire binding process, so that locking of the wire against the guide member (5) is prevented. Also described herein is a wire binding machine (3) comprising an arrangement (1).
Abstract: The present disclosure relates to a tile or masonry saw assembly comprising a saw device (2) including a motor (5) arranged to run a saw blade (4) to cut a workpiece. The saw assembly also comprises a frame (3) that is arranged to support the saw device (2) and a workpiece support (15) operably coupled to the frame (2) to support the workpiece relative to the saw device (2). The saw assembly further comprises a cover assembly (6) with a cover (9) and a supporting structure (10). A front end (25) is arranged to face the saw blade (4) and an opposing rear end (26) where a dust hose attachment (11) is positioned and arranged to be connected to a vacuum dust collection arrangement. The supporting structure (10) comprises a base (16) that is arranged to be fastened to the workpiece support (15). The cover (9) is movable relative the base (16), and the cover assembly (6) is releasably attachable to the workpiece support (15).
Abstract: A robotic vehicle (10) comprising a first chassis platform (200) comprising a first wheel assembly (202) and a second chassis platform (210) comprising a second wheel assembly (212). The first and second chassis platforms (200, 210) is arranged to be spaced apart from each other. The robotic vehicle (10) further comprises a linkage (220) operably coupled to the first chassis platform (200) and the second chassis platform (210). The linkage (220) being coupled so as to be fixed relative to the first chassis platform (200) and so that the second chassis platform (210) is rotatable relative to the first chassis platform (200), wherein the second chassis platform (210) comprises a turning axis (400). Said robotic vehicle (10) further comprising an electric brake (262) disposed proximate to a turning shaft (422) of the linkage (220).
Abstract: A lawnmower (1) is disclosed comprising at least one wheel (3) configured to support the lawnmower (1) during operation. The at least one wheel (3) comprises a rolling surface (5), and the lawnmower (1) comprises a cleaning device (7) configured to clean the rolling surface (5), and an actuator (9) configured to move the cleaning device (7) relative the rolling surface (5). The present disclosure further relates to a method (100) of cleaning a rolling surface (5) of at least one wheel (3) of a lawnmower (1).
Abstract: Systems, methods, and apparatuses for generating a consumable product quotation are provided. An example method may include receiving a surface status. The example method may also include determining, by processing circuitry, consumable product requirements for performing a job based on the surface status and consumable product parameters accessed in a consumable products database. The example method may also include providing the consumable product requirements for output to a user. The consumable product requirements may include types of consumable products for completing the job.
Type:
Grant
Filed:
April 7, 2020
Date of Patent:
November 8, 2022
Assignee:
HUSQVARNA AB
Inventors:
Maria Forsberg, Johan Wallin, Michel Hubermont, Alan Dupont, Martin Renneson
Abstract: A battery pack may include a plurality of battery cells, a cell retainer and a heat exchanger assembly. The cell retainer may define a plurality of cell reception slots configured to retain respective ones of the battery cells. The cell retainer may define an enclosure that fixes the battery cells and is not penetrated by any cooling apparatus. The cell retainer may be in thermal communication with the battery cells to transfer heat away from the battery cells. The heat exchanger assembly may be in thermal communication with the cell retainer and external to the cell retainer to at least passively transfer heat away from the cell retainer while the battery pack is operated in a discharge mode. The cell retainer may include a thermally conductive material capable of transferring heat to the heat exchanger assembly and also storing at least some of the heat.
Type:
Grant
Filed:
November 23, 2012
Date of Patent:
November 8, 2022
Assignee:
HUSQVARNA AB
Inventors:
Mikael Willgert, Lars Dernebo, Martin Larsén, Rajinder Mehra
Abstract: A riding lawn care vehicle (10) includes first and second drive wheels (32), a steering lever (34), a brake assembly (110), and a mechanical brake linkage assembly (120) including a cable tensioner (250). The brake assembly (110) may be operably coupled to at least one of the first and second drive wheels (32) to enable brakes to be selectively applied to the first and second drive wheels (32) based on a position of the steering lever (34). The cable tensioner (250) may be configured to activate the brake assembly (110) relative to the at least one of the first and second drive wheels (32) in response to the steering lever (34) being moved outwardly to an outboard position. The mechanical linkage assembly (120) may be configured to provide a greater amount of rotation of the cable tensioner (250) than a magnitude of rotation of the steering lever (34) when the steering lever (34) is moved from the inboard position to the outboard position.
Type:
Grant
Filed:
October 30, 2019
Date of Patent:
November 1, 2022
Assignee:
HUSQVARNA AB
Inventors:
Jake Bagwell, Mark Wagner, Braxton Reese