公开(公告)号：US11511818B2

公开(公告)日：2022-11-29

申请号：US16121622

申请日：2018-09-04

Applicant: MTD PRODUCTS INC

Inventor： Peter J. Buchanan

IPC: B62D55/12 ,  B62D55/065 ,  B62D55/30 ,  B62D55/084 ,  B62D55/135 ,  B62D55/108 ,  B62D55/14 ,  B62D55/10

Abstract: A track drive for outdoor power equipment has a support frame with a centerline and a hub bearing attached to the support frame. A drive sprocket having a nesting interior half and exterior half is attached to the hub bearing, which enables the drive sprocket to rotate relative to the support frame. The drive sprocket is attached to an associated drive hub of a piece of outdoor power equipment. Drive sprocket teeth are spaced radially about the drive sprocket, with a first set of drive teeth attached to the interior half sprocket and located on an interior side of the support frame. A second set of drive teeth are attached to the exterior half sprocket and located on an exterior side of the support frame. The drive sprocket transmits a rotational force to an endless track to rotate the endless track and propel the outdoor power equipment.

公开(公告)号：US11503767B2

公开(公告)日：2022-11-22

申请号：US16655302

申请日：2019-10-17

Applicant: MTD PRODUCTS INC

Inventor： Adam Woodrum

IPC: A01D67/04 ,  A01D34/00 ,  A01D34/64 ,  B60N2/38 ,  A01D101/00

Abstract: A lawn maintenance vehicle includes an adjustable seat assembly, wherein the seat assembly is rotatable relative to a frame of the vehicle when the vehicle is operated on a sloped surface. The seat assembly is rotatable in order to maintain the operator in a substantially vertical seated alignment while operating the vehicle on a sloped surface. The seat assembly is also rotatable when the vehicle is in a zero-turn or tight-turn maneuver, wherein the seat is rotated toward the center of turning radius to offset the centrifugal forces experienced by the operator during such a maneuver.

公开(公告)号：US20220324112A1

公开(公告)日：2022-10-13

申请号：US17831484

申请日：2022-06-03

Applicant: MTD Products Inc

Inventor： Karni Wolowelsky ,  Shai Abramson

IPC: B25J9/16 ,  G05D1/02 ,  B25J5/00 ,  B25J9/00

Abstract: A domestic robotic system includes a robot and data storage operable to store data defining a boundary of a working area, the robot includes a payload actuable to perform work on a portion of the working area adjacent the robot, at least one processor, a first positioning system, one or more sensors operable to sense directly the boundary of the working area and a current distance of the robot thereto, a second positioning system, which uses data from the sensors. The processor is programmed to operate in (i) an area coverage mode, wherein the processor, using the first positioning system and the stored data defining the boundary of the working area, navigates the robot around the working area, with the payload active, and (ii) a boundary proximity mode, wherein the processor, using the second positioning system, navigates the robot around the working area, in proximity to the boundary.

公开(公告)号：US11464164B2

公开(公告)日：2022-10-11

申请号：US16284313

申请日：2019-02-25

Applicant: MTD PRODUCTS INC

Inventor： Ryan Cmich ,  Adam Ference

IPC: A01D34/73 ,  A01D34/81 ,  A01D34/82 ,  A01D34/00 ,  A01D101/00 ,  A01D34/66 ,  A01D34/78 ,  A01D69/02

Abstract: A high-efficiency cutting system for an autonomous mower provides a multiple blade tip cutting radius for a cleaner cut, and more complete mow. The system includes a spinning blade disk provided within a housing including a vertical standoff. The blade disk includes a first pair of cutting blades located between the center of the blade disk and the circumference of the blade disk, and a second pair of cutting blades located radially inward from the first pair of cutting blades. The cutting blades extend downward and away from the blade disk at an angle.

公开(公告)号：US20220192109A1

公开(公告)日：2022-06-23

申请号：US17693392

申请日：2022-03-13

Applicant: MTD Products Inc

Inventor： John Coleman ,  Darren Williams

IPC: A01G20/43 ,  E01H1/05 ,  A01B45/00 ,  B08B1/00 ,  B08B1/04

Abstract: A method of removing debris from an area of turf grass can include providing a grass treatment system including a comb having a leading edge comprising a plurality of comb teeth, wherein the comb is mounted transversely to a direction of travel, and a substantially cylindrical brush positioned above the comb and configured to engage at least a portion of a top surface of the comb, wherein the brush rotates relative to the comb. The method can include positioning the grass treatment system closely adjacent to the turf grass such that the comb engages debris on and around the turf grass surface, and moving the grass treatment so that (i) the comb engages the debris, (ii) the rotating brush removes at least a portion of the debris from the surface of the comb, and (iii) the rotating brush does not come into contact with the turf grass.

公开(公告)号：US11351670B2

公开(公告)日：2022-06-07

申请号：US16580061

申请日：2019-09-24

Applicant: MTD Products Inc

Inventor： Karni Wolowelsky ,  Shai Abramson

IPC: G06F17/00 ,  B25J9/16 ,  G05D1/02 ,  B25J5/00 ,  B25J9/00

Abstract: A domestic robotic system includes a robot and data storage operable to store data defining a boundary of a working area, the robot includes a payload actuable to perform work on a portion of the working area adjacent the robot, at least one processor, a first positioning system, one or more sensors operable to sense directly the boundary of the working area and a current distance of the robot thereto, a second positioning system, which uses data from the sensors. The processor is programmed to operate in (i) an area coverage mode, wherein the processor, using the first positioning system and the stored data defining the boundary of the working area, navigates the robot around the working area, with the payload active, and (ii) a boundary proximity mode, wherein the processor, using the second positioning system, navigates the robot around the working area, in proximity to the boundary.

公开(公告)号：US20220121202A1

公开(公告)日：2022-04-21

申请号：US17503958

申请日：2021-10-18

Applicant: MTD PRODUCTS INC

Inventor： Zachary A. Lyzen ,  Adam J. Woodrum

IPC: G05D1/00 ,  G05D1/02

Abstract: A power equipment machine with operator selectable autonomous mode and manual mode is provided. By way of example, the power equipment device can provide user-assisted semi-autonomous steering along user-defined paths of a geographic area. Manual steering controls and autonomous guidance controls can be positioned on one or more movable armrests to enhance comfort and minimize operator fatigue. The manual steering controls can include a jog wheel and encoder mechanism located on a first armrest, eliminating conventional mechanical shaft and wheel steering devices and dual lap bar steering devices. Guidance and computer settings can be accessed through a touchscreen display mounted in front of an operator position on the power equipment device.

公开(公告)号：US11197404B2

公开(公告)日：2021-12-14

申请号：US16248920

申请日：2019-01-16

Applicant: MTD Products Inc

Inventor： Adam Hiller ,  Peter J. Buchanan

IPC: A63B57/50 ,  A01B59/042 ,  A01B45/00 ,  A01B51/02 ,  A01B35/14 ,  A01B19/02 ,  A01B35/32 ,  A01B59/06 ,  A01B63/02 ,  E02F3/76 ,  E02F3/96 ,  A01B61/04 ,  E01H1/10 ,  E01H5/06 ,  A01G20/40 ,  E01C19/20

Abstract: A sand bunker rake/infield groomer vehicle having a frame; a plurality of wheels to traverse a driven surface, wherein the wheels are rotatably mounted to the frame; a power source mounted to the frame; and a rear attachment structure attached to the frame, wherein the rear attachment structure provides a joint enabling rotation; a bracket including a shaft wherein the bracket is configured to cooperate with an associated rake/grooming attachment; and a pivoting bracket mounted to the frame.

公开(公告)号：US20210282287A1

公开(公告)日：2021-09-09

申请号：US17331066

申请日：2021-05-26

Applicant: MTD Products Inc

Inventor： Ryan Cmich ,  Joseph Saunders

IPC: H05K5/06 ,  H05K5/02 ,  H02G3/08 ,  H02G15/013

Abstract: A sealing system for an electronics enclosure includes an enclosure having a first enclosure half and a second enclosure half, the first enclosure half including at least one sidewall, a multi-lip radial sealing member having a plurality of lip elements, the lip elements extending perpendicularly to the side wall, the radial sealing member being positioned between the first enclosure half and the second enclosure half such that the radial sealing member remains flush against the enclosure, and the lip elements form continuous points of contact around the perimeter of the enclosure.

公开(公告)号：US20210078470A1

公开(公告)日：2021-03-18

申请号：US16571756

申请日：2019-09-16

Applicant: MTD PRODUCTS INC.

Inventor： Phillip Helin

IPC: B60N2/50 ,  F16F15/04

Abstract: A riding outdoor power equipment vehicle, such as for grounds maintenance, having a chassis including a support area, an operator platform for supporting a rider and supported by the chassis, and a suspension assembly. The suspension assembly is configured to resist movement of the operator platform towards the support area of the chassis and includes a biasing element having a plurality of annular portions. At least two annular portions of the plurality of annular portions are spaced apart from one another when the biasing element is in a default orientation and are moved into engagement with one another upon compression of the biasing element between the operator platform and the support area. Compression of the biasing element provides an initial deflection response that decreases substantially in response to increasing loading being applied to the operator platform.