Abstract:
A non-pneumatic tire assembly includes a non-pneumatic tire. The non-pneumatic tire includes an inner circumferential ring and an outer circumferential ring defining an annular space and a cylindrical space inside the inner circumferential ring. A plurality of partitions connect the circumferential rings within the annular space. A ground-contacting tread is located on the outer circumferential ring. A rim, including a plurality of pieces, is located within the cylindrical space. The non-pneumatic tire assembly further includes a hub that is removably connected to the rim.
Abstract:
A walk-behind mower includes a frame and a power source attached to the frame. A selectively steerable drive wheel and a set of follower wheels are rotatably attached to the frame. The walk-behind mower includes a steering wheel assembly attached to the frame, the assembly including a steering column and a steering wheel attached to the steering column. The walk-behind mower also includes a universal joint connecting the steering wheel assembly to the frame. The walk-behind mower further includes a mower deck attached to the frame and a mower blade assembly attached to the deck. In other examples, the walk-behind mower includes a front section and a rear section that rotate relative to each other about a vertical axis.
Abstract:
A vertical tine tiller having vertically oriented tine assemblies that are configured to rotate about vertical axes is provided. The tiller includes a power source that drives a horizontally-aligned driveshaft, which can selectively drive a transmission assembly. Horizontal rotation of the driveshaft is directly transferred into vertical rotation of a pair of drive rods to which the tine assemblies are attached.
Abstract:
A gardening shears comprises a first blade (10) and a second blade (20) which are provided with respective hand grips (12, 22), respectively, and are rotatably connected to one another via a pivot connection (13, 23, 30, 41). The pivot connection comprises a pivot bolt (32) passing through respective bores (13, 23) of the first and second blade (10, 20), respectively and secures the blades (10, 20) in axial direction of the pivot bolt (32) to one another. The pivot bolt (32) comprises in its axial direction successive first and second peripheral sections (34, 35), the first peripheral section (34) being rotatably mounted over a limited angular region within the bore (13) of the first blade (10) whereas the second peripheral section being non-rotatably secured within the bore (21) of the second blade.
Abstract:
A replaceable mower blade assembly for attaching to a rotatable spindle, motor, or engine crankshaft is provided. The blade assembly includes a mounting member having a plurality of ends extending from a central bore that is configured to receive the spindle, motor, or engine crankshaft. Each end includes an indexing aperture and a plurality of caps. A locking mechanism is operatively connected to the mounting member, and each arm of the locking mechanism includes a pin. A cutting blade is removably attachable to each end of the mounting member and the cutting blade includes an indexing aperture and a plurality of keyhole apertures. Each pin of the locking mechanism is insertable and engageable with an indexing aperture of both the mounting member and the cutting blade for positively securing each cutting blade.
Abstract:
A non-pneumatic tire with at least one annular band having an inner ring and a deformable outer ring, a plurality of generally flexible web-spokes connecting the inner ring to the outer ring and a ground contacting tread cap affixed to the annular band.
Abstract:
The disclosed technology relates to a method and system for localizing and confining an autonomous mobile work system or systems for performing work in a user defined space is disclosed. The system can include two or more variable reflective base stations at first and second locations that can modify their optical or electromagnetic reflectivity based upon either an external command via wired or wireless communications interface, or automatically on a regular or asynchronous time schedule under programmed or user settable control. The system also can include one or more autonomous mobile work systems capable of sensing the state of the variable reflectance base stations via sensors such as electromagnetic or optical sensors capable of measuring distance to the reflective base stations.