A riding lawn mower has an internal combustion engine and a muffler with a first housing. The internal combustion engine is connected to the muffler to supply exhaust gases originating from the internal combustion engine to the first housing of the muffler for noise damping of the exhaust gases. A second housing is provided that thermally insulates the first housing of the muffler. The second housing at least partially encloses the first housing of the muffler. The second housing has an exterior side with an emissivity of greater than 0.8.

The present invention provides a lawn mower for cutting grass and maintaining the lawn surface. The lawn mower has a mower deck, a cutting blade driven by a motor, and a blade changing mechanism. The blade changing mechanism includes a fastener for securing the cutting blade to the motor, a blade securement tool for limiting the cutting blade from rotating, and at least one opening on the mower deck for removably receiving the blade securement tool. An edge guide is also provided on the mower deck. The lawn mower also includes a dynamic power management system configured to adjust a rotation speed of the motor dynamically based on a duty condition of the cutting blade.

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.

An outdoor moving device includes a main body, a first energy storage device, a second energy storage device, and a connection assembly. The first energy storage device is capable of supplying power to the outdoor moving device and includes at least one first energy storage unit. The second energy storage device is capable of supplying power to the outdoor moving device and includes at least one second energy storage unit. The connection assembly is used for mounting the second energy storage device to the main body. The first energy storage device is detachably mounted to the main body, the first energy storage device is detachable from the main body to supply power to another power tool, the first energy storage unit includes a first positive electrode made of a first material, and the second energy storage unit includes a second positive electrode made of a second material.

A grounds maintenance apparatus such as a lawn mower adapted for movement from a horizontal operating orientation to a vertical storage orientation. Embodiments of the apparatus provide supplemental storage wheels adapted to permit rolling of the apparatus over a ground surface while in the vertical storage orientation.

A walk-behind mower has a mower deck, a plurality of wheels, a head, and a plurality of light sources. The wheels are rotatably coupled to the mower deck. The wheels move the walk-behind mower over a support surface in a forward direction and a rearward direction. The head is coupled to the mower deck. The head can store at least one battery pack. The light sources are coupled to at least one of the mower deck and the head. The light sources project light through a continuous illumination angle about the walk-behind mower. The illumination angle extends along an arc from the forward direction toward the rearward direction and is at least 90 degrees.

A universal roller rebuilder apparatus and method includes a first holder, with an outer angled contact rim. The outer angled contact rim at least partially surrounds an access hole and further is conformed to contact with a roller. The roller includes at least one removable element inside the roller. A second holder includes an outer angled contact rim that at least partially surrounds an access hole. A pair of end brackets are connected with a support frame where the first holder is connected with one end bracket and the second holder is connected with the other end bracket. The pair of end brackets support the first holder and the second holder in alignment such that the roller is held in position with the aligned holders. A puller aligns and connects with the roller in the same alignment as the first holder and the second holder.

An assist handle for assisting an operator with climbing on to, or off of, a ground maintenance vehicle such as a mower, and a ground maintenance vehicle incorporating the same. The assist handle includes, in one embodiment, a grip portion movable between a deployed position, wherein the grip portion is positioned at a deployed elevation configured to assist the operator with ingress to, or egress from, a platform such as a seat; and a stowed position, wherein the grip portion is positioned at a stowed elevation lower than the deployed elevation.

A device for extracting auxiliary power from a power source installed on or associated with an implement, and supplying the auxiliary power to an auxiliary tool associated with the implement. The invention is preferably employed in the context of an auxiliary tool, e.g., in the form of a rotary trimmer, edger or the like, associated with another power implement, such as a lawnmower, wherein the power is preferably extracted from a driven member of the implement. Advantageously, the device is easy to attach/detach, is universally locatable and/or orientable on the implement, and is easily retrofittable to practically any existing implement, such as a lawnmower deck.

A method of using a support accessory rack includes aligning a first mounting portion of the support accessory rack with a first pin of a rollover protective structure. The method includes aligning a second mounting portion of the support accessory rack with a second pin of a second rollover protective structure. The method includes actuating the first pin to secure the first mounting portion to the rollover protective structure. The method further includes actuating the second pin to secure the second mounting portion to the rollover protective structure. The method includes pivoting a rotating support member of the support accessory rack away from the first mounting portion and the second mounting portion, and supporting the rotating support member onto a lateral bar of the rollover protective structure.