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公开(公告)号：US11666010B2
公开(公告)日：2023-06-06
申请号：US17118885
申请日：2020-12-11
Applicant: HUSQVARNA AB
Inventor： Tomas Wykman , Fredrik Edholm , Eric Lennings , Pär Christensson , Stefan Grufman , Björn Mannefred , Patrik Jägenstedt , Magnus Öhrlund , Olle Markusson
IPC: H04L67/125 , A01G20/30 , A01D34/00 , G05D1/02 , H04W4/021 , A01C21/00 , A01D101/00 , H04W84/18
CPC classification number: A01G20/30 , A01C21/007 , A01D34/008 , G05D1/0261 , G05D1/0274 , G05D1/0278 , H04L67/125 , H04W4/021 , A01D2101/00 , G05D1/027 , G05D2201/0208 , H04W84/18
Abstract: Some example embodiments may provide a capability for intelligent control or management of a number of assets in connection with yard maintenance with the assistance or inclusion of a management unit having distributed properties. Thus, for example, sensor equipment and task performance equipment operation may be coordinated between local management and remote management entities for efficient monitoring and maintaining of lawn wellness.
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公开(公告)号：US20180213731A1
公开(公告)日：2018-08-02
申请号：US15539317
申请日：2015-11-04
Applicant: HUSQVARNA AB
Inventor： Tomas Wykman , Fredrik Edholm , Eric Lennings , Pär Christensson , Stefan Grufman , Björn Mannefred , Patrik Jägenstedt , Magnus Öhrlund , Olle Markusson
CPC classification number: A01G20/30 , A01C21/007 , A01D34/008 , A01D2101/00 , G05D1/0261 , G05D1/027 , G05D1/0274 , G05D1/0278 , G05D2201/0208 , H04L67/125 , H04W4/021 , H04W84/18
Abstract: Some example embodiments may provide a capability for intelligent control or management of a number of assets in connection with yard maintenance with the assistance or inclusion of a management unit having distributed properties. Thus, for example, sensor equipment and task performance equipment operation may be coordinated between local management and remote management entities for efficient monitoring and maintaining of lawn wellness.
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公开(公告)号：US10918015B2
公开(公告)日：2021-02-16
申请号：US15763964
申请日：2016-10-06
Applicant: HUSQVARNA AB
Inventor： Johan Hallendorff , Tomas Wykman , Stefan Kullberg , Rickard Skogward
IPC: A01D34/416
Abstract: A trimmer head arranged to be driven to rotate a trimmer line, where the trimmer head includes a housing and an inner body connected to a trimmer line spool. The inner body is arranged to be movable relative the housing so that a trimmer line spooled around the trimmer line spool is released and pulled out by a centrifugal force caused by the rotation of the trimmer head, thereby allowing feed of the trimmer line. The trimmer further includes drive means for driving the trimmer head to rotate, and the trimmer is arranged to cause a relative movement of the inner body relative the housing by changing the rotation speed of the trimmer head.
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公开(公告)号：US20190024611A1
公开(公告)日：2019-01-24
申请号：US16070369
申请日：2016-01-25
Applicant: HUSQVARNA AB
Inventor： Tomas Wykman , Anders Angrén
Abstract: A starter system (400), for an internal combustion engine (200) including a carburetor (450) and a recoil starter (150), may include a sensor (420), a controller (430) and an actuator (440). The carburetor (450) may have at least a choke valve (322) for controlling a flow of a fresh air into a combustion chamber (232) of the engine (200) during engine start. The choke valve (322) may have a choke position and an open position and may be positioned into the choke position at engine start. The recoil starter (150) may start a rotation of an engine crankshaft causing a fuel supply to the combustion chamber (232) of the engine (200). The sensor (420) may be disposed to detect movement parameters associated with the engine (200) or crankshaft responsive to operation of the recoil starter (150). The controller (430) may be operably coupled to the sensor (420) to receive information indicative of the movement parameters and providing a control signal based on processed information providing an indication of an optimal condition for engine start. The actuator (440) may be configured to receive the control signal from the controller (430) and to initiate automatic repositioning of the choke valve (322) from the choke position to the open position based on receiving the control signal from the controller (430) responsive to the indication of the optimal condition for engine start.
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公开(公告)号：US20190061028A1
公开(公告)日：2019-02-28
申请号：US16089085
申请日：2017-03-29
Applicant: HUSQVARNA AB
Inventor： Pär Martinsson , Johan Hallendorff , Tomas Wykman
IPC: B23D59/00 , B27B17/00 , A01G23/08 , A01G23/083 , A01G23/099
Abstract: A handheld power tool (100) comprising at least one orientation sensor (150) is provided. The handheld power tool (100) is operatively connected to a controller (160; 210) and said controller (160; 210) is configured to receive orientation data from the at least one orientation sensor (150), wherein the orientation data comprises information associated with an orientation of at least a portion of the handheld power tool (100) and to determine operational data based on the orientation data, said operational data representing work performed using the handheld power tool (100). The operational data is determined by determining the orientation of the power tool based on the received orientation data from the at least one orientation sensor (150).
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公开(公告)号：US20180271010A1
公开(公告)日：2018-09-27
申请号：US15763964
申请日：2016-10-06
Applicant: HUSQVARNA AB
Inventor： Johan Hallendorff , Tomas Wykman , Stefan Kullberg , Rickard Skogward
IPC: A01D34/416
CPC classification number: A01D34/4161 , A01D34/4162 , A01D34/4163
Abstract: A trimmer head (1) arranged to be driven to rotate a trimmer line (3), wherein the trimmer head comprises a housing (1a, 1b) and an inner body (1c) connected to a trimmer line spool (13, 39), the trimmer head being characterized in that the inner body is arranged to be movable relative the housing so that a trimmer line spooled around the trimmer line spool is released and to be pulled out by a centrifugal force caused by the rotation of the trimmer head, thereby allowing feed of the trimmer line. A trimmer (10) comprising a trimmer head according to above, wherein the trimmer further comprises drive means (2, 4) for driving the trimmer head to rotate and wherein the trimmer is arranged to cause a relative movement of the inner body relative the housing by changing the rotation speed of the trimmer head.
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公开(公告)号：US20180042184A1
公开(公告)日：2018-02-15
申请号：US15556395
申请日：2015-03-13
Applicant: HUSQVARNA AB
Inventor： Tomas Wykman , Joakim Persson , Anders Hansson
IPC: A01G3/053
CPC classification number: A01G3/053 , A01G3/04 , A01G3/0475 , B26B13/28
Abstract: The invention relates to an adjustment device for automatic adjustment of a spacing between a first and a second cutting blade (21, 22; 51, 52), the first and second cutting blades being mounted so that the first and second contact surfaces (31, 32) are in contact with and parallel to each other; wherein at least one of the first and second cutting blades (21, 22; 51, 52) is displaceable to produce a cutting action between first and second cutting edges (23, 24). The first and second cutting blades are connected by at least one adjustment device (28; 50; 90) arranged to maintain the spacing between the first and second planar contact surfaces. The adjustment device (28; 50; 90) comprises a connector (34; 64; 79; 84; 94) extending through a recess in the respective first and second cutting blades at right angles to the first and second contact surfaces and arranged to guide the movement of the displaceable cutting blades relative to the other cutting blade; a first stop (33; 63; 102) fixed to one end of the connector (34; 64; 79; 84; 94) and arranged in contact with the outer surface of the second cutting blade; and an adjustment means (40; 70; 80; 100) located at the opposite end of the connector and arranged to apply a pre-tensioning force on the outer surface of the first cutting blade (21; 51) and maintain the first and second contact surfaces (31, 32) in contact.
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公开(公告)号：US20210092912A1
公开(公告)日：2021-04-01
申请号：US17118885
申请日：2020-12-11
Applicant: Husqvarna AB
Inventor： Tomas Wykman , Fredrik Edholm , Eric Lennings , Pär Christensson , Stefan Grufman , Björn Mannefred , Patrik Jägenstedt , Magnus Öhrlund , Olle Markusson
Abstract: Some example embodiments may provide a capability for intelligent control or management of a number of assets in connection with yard maintenance with the assistance or inclusion of a management unit having distributed properties. Thus, for example, sensor equipment and task performance equipment operation may be coordinated between local management and remote management entities for efficient monitoring and maintaining of lawn wellness.
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公开(公告)号：US11162435B2
公开(公告)日：2021-11-02
申请号：US16616026
申请日：2018-05-30
Applicant: Husqvarna AB
Inventor： Tomas Wykman , Henrik Eklund , Mikael Larsson
Abstract: The present disclosure relates to a carburetor assembly (7) comprising a control unit (17), an air channel (8), a throttle valve (9), a choke valve (10), a pulsed fuel valve (11), and a fuel supply line (12). The control unit (17) is adapted to control the fuel valve (11) to supply fuel in accordance with a certain start setting, where the choke valve (10) can be open or closed. The carburetor assembly (7) comprises a rotation angle detector assembly (20) with a choke detector part (29) that is mounted to a choke shaft (30) that is connected to the choke valve (10) such that the choke detector part (29) is arranged to rotate together with the choke valve (10). The rotation angle detector assembly (20) further comprises a choke sensor device (23, 33) that is connected to the control unit (17) and can be affected by the choke detector part (29) such that the choke sensor device (23, 33) provides different output signals to the control unit (17) in dependence of whether the choke valve (10) is open or closed.
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公开(公告)号：US11135665B2
公开(公告)日：2021-10-05
申请号：US16089085
申请日：2017-03-29
Applicant: HUSQVARNA AB
Inventor： Pär Martinsson , Johan Hallendorff , Tomas Wykman
IPC: B23D59/00 , B27B17/00 , A01G23/08 , A01G23/083 , A01G23/099 , B27B17/12
Abstract: A handheld power tool (100) comprising at least one orientation sensor (150) is provided. The handheld power tool (100) is operatively connected to a controller (160; 210) and said controller (160; 210) is configured to receive orientation data from the at least one orientation sensor (150), wherein the orientation data comprises information associated with an orientation of at least a portion of the handheld power tool (100) and to determine operational data based on the orientation data, said operational data representing work performed using the handheld power tool (100). The operational data is determined by determining the orientation of the power tool based on the received orientation data from the at least one orientation sensor (150).
