公开(公告)号：US20210347204A1

公开(公告)日：2021-11-11

申请号：US17313407

申请日：2021-05-06

Applicant: MTD PRODUCTS INC

Inventor： Ryan Cmich

IPC: B60B33/00 ,  B60B19/00

Abstract: A caster wheel assembly for an outdoor power equipment machine includes a wheel mount and provides a double bell-shaped caster wheel including two bell-shaped halves, each bell-shaped half includes a central hub, a smooth transition portion, an outer circumferential rim, and a planar face. A ground contacting tread can be provided by the outer circumferential rims. A ground contacting tread can be provided by a resilient tread ring positioned between the two bell-shaped halves.

公开(公告)号：US20210188353A1

公开(公告)日：2021-06-24

申请号：US16983875

申请日：2020-08-03

Applicant: MTD PRODUCTS INC

Inventor： Jimmy N. Eavenson, SR. ,  Adam Woodrum ,  Jonathan Prybor

IPC: B62D9/00 ,  B62D55/065 ,  B62D7/15 ,  B62D11/00 ,  B62D21/18 ,  B62D11/04

Abstract: A utility vehicle includes a frame, a power source, and a plurality of steerable structures. Ground engaging members are connected to the steerable structures. An operator seating area includes a steering control and a speed control. Controllers receive input from the steering control and the speed control. Motors drive the ground engaging members at different speeds and in different directions. A controller integrates a steering input with a speed input to effect rotation of the steerable structures and effect rotation of the ground engaging members. The steering control, speed control, controllers, steerable structures, and motors are configured to work together to control the rotational speed of all of the ground engaging members based upon a steering angle input and the lateral side the ground engaging member is connected to. Other examples include braking mechanisms, adjustable track width, and a sealed tubular frame.

公开(公告)号：US11039518B2

公开(公告)日：2021-06-15

申请号：US16712001

申请日：2019-12-12

Applicant: MTD PRODUCTS INC

Inventor： Edward John Blanchard

IPC: H05B45/10 ,  H05B45/44 ,  H05B45/50 ,  H05B45/54 ,  G01R31/26

Abstract: An illumination mechanism includes a plurality of LEDs for illuminating a surface and is configured to determine whether one of the plurality of LEDs has faulted. A pair of LED sets is provided with the sets electrically connected in parallel via terminal connections of each set of LEDs. Regardless of at least one of environmental temperature or minor differences in minimum forward voltages of individual LEDs, the mechanism is configured to discern whether at least a single LED of one set of LEDs of the pair has faulted. In instances where the sets of LEDs are separated from a controller or voltage measurement circuitry, the cost, circuit board real estate consumption, and manufacturing complexity associated with additional wiring and connections are minimized.

公开(公告)号：US20210146996A1

公开(公告)日：2021-05-20

申请号：US17027584

申请日：2020-09-21

Applicant: MTD Products Inc

Inventor： Axel Schaedler ,  Hans Hauser ,  Rick Ruebusch ,  Ian David Cornwell

IPC: B62D7/09 ,  B62D7/08 ,  B62D9/00 ,  B62D11/00 ,  B62D11/24 ,  B62D3/02

Abstract: In a broad respect, vehicles that are capable of making a low- to zero-radius turn using the independent rotation of drive wheels and by turning the non-driving steerable structure or structures (such as wheels) with a steering input device (in some embodiments, the driving wheels also may be capable of being turned). This may be accomplished using a steering system, a speed control system and an integration device (together, a control system) that are configured to work together to provide correct steering in forward and reverse, and, in some embodiments, to reduce the speed of the outboard drive wheel of the vehicle when it enters an extreme turn under constant speed input. Different systems configured for use in such vehicles are included.

公开(公告)号：US10939614B2

公开(公告)日：2021-03-09

申请号：US16174447

申请日：2018-10-30

Applicant: MTD PRODUCTS INC

Inventor： Cory Bringhurst ,  Jeffrey Kucera

IPC: A01D34/416 ,  A01D101/00

Abstract: A trimmer head for use with a handheld lawn maintenance tool is shaped in a hub-and-spoke manner, wherein the trimmer head includes a housing formed of a hub, a circular rim, and a plurality of spokes extending therebetween. A spool is positioned within the hub, and a pair of pieces of trimmer line are inserted into opposing sides of the circular rim through the spokes for winding onto the spool. The trimmer line extends outwardly from the housing at a location spaced away from the hub.

公开(公告)号：US10899171B2

公开(公告)日：2021-01-26

申请号：US16201047

申请日：2018-11-27

Applicant: MTD Products Inc

Inventor： Ryan Cmich

IPC: B60B19/00 ,  B60B15/08 ,  B60B15/02 ,  A01D34/82 ,  A01D34/00

Abstract: A low impact turf wheel having a wheel rim including an inner and outer surface, a plurality of pegs extending radially outward from the outer surface of the wheel rim, wherein the plurality of pegs maintain the wheel rim above an area of turf, and a hub. A turf wheel having a wheel rim having an inner and outer surface, a plurality of pegs extending radially outward from the outer surface of the wheel rim, wherein the peg comprises a stem, a collar and a lug, and wherein the lug includes a limited surface area to provide a ground contacting tread, and a hub.

公开(公告)号：US20210011170A1

公开(公告)日：2021-01-14

申请号：US16509097

申请日：2019-07-11

Applicant: MTD PRODUCTS INC

Inventor： Charles Hart ,  Jeff Kucera

IPC: G01S17/93 ,  G01S7/481 ,  G05D1/00 ,  G05D1/02

Abstract: A machine vision device is provided usable in conjunction with power equipment machines. By way of example, an array of sensors can be deployed to detect proximity of objects to the power equipment machine, and issue an alert in response to detecting an object within a threshold distance. The alert can be utilized by the power equipment machine to take corrective action to mitigate or avoid running over or striking the object. Sensors having respective fields of view can be arranged along an arc to facilitate machine vision of a spatial volume in a proximity of the machine, and ranging determinations can be coupled with low cost processing devices to facilitate a machine vision solution far more cost effective than other technologies in the art.

公开(公告)号：US10856467B2

公开(公告)日：2020-12-08

申请号：US16552171

申请日：2019-08-27

Applicant: MTD PRODUCTS INC

Inventor： Jay Maggard

IPC: A01D34/58 ,  A01D34/00 ,  A01D34/43 ,  A01D34/53 ,  A01D34/57 ,  A01D34/62 ,  F16H3/44 ,  A01D34/535 ,  A01D101/00

Abstract: An autonomous mobile work system (20) includes a drive wheel (34) that is connected to a frame (24) and a rotating blade assembly (36). The rotating blade assembly (36) includes a blade assembly axis of rotation (38) and is connected to the frame (24) within a housing (26). The mobile work system (20) further includes a single motor (40) operably connected to the blade assembly (36). The motor (50) includes a motor output shaft (44) and the motor output shaft (44) includes an output shaft axis of rotation (46). The mobile work system (20) still further includes a gear box (50) operably connected to the drive wheel (34) and the motor output shaft (44). The single motor (50) urges rotation of both the rotating blade assembly (36) and the drive wheel (34). The gear box (50) can include a planetary gear set (104) including a ring gear (110) defining cavities (120) at its outside diameter (124). A locking shaft (126) can rotate between an engaged position and a disengaged position with one of the cavities (120).

公开(公告)号：US10773760B2

公开(公告)日：2020-09-15

申请号：US16274203

申请日：2019-02-12

Applicant: MTD PRODUCTS INC

Inventor： Jimmy N. Eavenson, Sr. ,  Peter Joseph Buchanan

IPC: B62D55/02 ,  B62D55/04 ,  B62D55/108

Abstract: A partially tracked utility vehicle and conversion are provided. The converted partially tracked utility vehicle has a chassis, front wheels, and a trailing link suspension. The trailing link suspension has a trailing link with a first end pivotably connected to the chassis and a second end pivotably connected to a walking beam at a walking beam pivot; a shock having a first end pivotably connected to a tension shaft and a second end pivotably connected to the trailing link; the walking beam further comprising a plurality of axle mounted bogey wheels for engaging a track of the partially tracked utility vehicle; a sprocket mounted to a traction drive of the utility vehicle for engaging and providing rotational power to the track; and an actuator attached to the chassis, the actuator having a shaft pivotably connected to the tension shaft and configured to rotate the tension shaft.

公开(公告)号：US20200245561A1

公开(公告)日：2020-08-06

申请号：US16782409

申请日：2020-02-05

Applicant: MTD PRODUCTS INC

Inventor： Adam Hiller ,  Adam Woodrum ,  Jeff Kucera ,  Josh Sooy ,  Michael Gretchko

IPC: A01D75/28 ,  A01D34/64 ,  B60N2/39 ,  A01D34/82 ,  B60N2/90

Abstract: A passive self-adjusting seat assembly for a lawn maintenance vehicle having a frame. The passive self-adjusting seat assembly includes a base, a guide assembly attached to the base, and a platform assembly that is selectively movable or slidable relative to the guide assembly in order to maintain an operator in an upright or substantially vertical orientation as the lawn maintenance vehicle traverses uneven or sloped ground. The seat assembly further including a locking assembly for selectively locking the sliding or movement of the platform assembly relative to the guide assembly.