A chainsaw configured to be powered by a battery pack. The chainsaw includes a housing, a guide bar, and a power and drive assembly. The housing includes a battery interface for receiving the battery pack. The guide bar guides a cutting chain and is removably coupled to the housing. The power and drive assembly includes a motor and a gear train. The motor is disposed within the housing and is configured to be powered by the battery pack. The gear train is driven by the motor and configured to drive the cutting chain. The housing, the guide bar, and the power and drive assembly each contribute to a total weight of the chainsaw. A power output by the power and drive assembly compared to the total weight defines a power-to-weight ratio of above 150 Watts per Pound.

A chainsaw configured to be powered by a battery pack. The chainsaw includes a housing, a guide bar, and a power and drive assembly. The housing includes a battery interface for receiving the battery pack. The guide bar guides a cutting chain and is removably coupled to the housing. The power and drive assembly includes a motor and a gear train. The motor is disposed within the housing and is configured to be powered by the battery pack. The gear train is driven by the motor and configured to drive the cutting chain. The housing, the guide bar, and the power and drive assembly each contribute to a total weight of the chainsaw. A power output by the power and drive assembly compared to the total weight defines a power-to-weight ratio of above 150 Watts per Pound.

A hand-guided treatment device is configured for use in working positions tilted relative to each other by a tilt angle of at least 45° about a device longitudinal axis. The device has a device housing, a handle operating unit with a handle extending with a main direction component parallel to the device longitudinal axis and a finger-operable operating element within finger reach of the handle, and a display field arranged on an outside of the device housing with at least one optical display element. The display field is arranged offset relative to the operating element in a housing circumferential direction about the device longitudinal axis and extends in the housing circumferential direction over a housing edge and/or with a curved or kinked course.

A system for protecting an operator (110) of a power tool may include a first set of wearable sensors (120) worn by the operator (110), a second set of wearable sensors (130) worn by the operator (110), a first tool sensor (122) disposed at the power tool where the first tool sensor (122) is configured to communicate with the first set of wearable sensors (120), a second tool sensor disposed (132) at the power tool where the second tool sensor (132) is configured to communicate with the second set of wearable sensors (130), and a controller (140). The controller (140) may be configured to determine, based on distances between the first tool sensor (122) and the first set of wearable sensors (120) and between the second tool sensor (132) and the second set of wearable sensors (130), whether to initiate a protective action with respect to the power tool.

A gardening and/or forestry apparatus has a support element. The support element supports an eyelet. The eyelet is configured to incorporate an apparatus securing element. The gardening and/or forestry apparatus also has an element receiving device. The support element and the element receiving device are configured to receive the support element in the element receiving device either in a first rotational position or in a second rotational position differing from the first rotational position and to secure the support element against rotation by form-fitting to the element receiving device.

A method and apparatus for vertically felling of trees are provided by taking apart the trunk in a stepwise manner combining sagittal and horizontal cross-sections. A vertical frame is attachable to a tree trunk, the vertical frame having a movable portion and a fixed portion. A first cutting device is attachable to the vertical frame and configured to cut the tree sagittally substantially along a longitudinal axis of the tree. A second cutting device is attachable to the vertical frame and configured to cut the tree horizontally from an exterior of the tree to a sagittal cut made in the tree by the first cutting device. A locking mechanism releasably locks the movable portion of the frame to the fixed portion of the frame. The apparatus uses the weight of the upper trunk to maintain stability to steadily decrease the tree height until the entire tree is removed.

A method and apparatus for vertically felling of trees are provided by taking apart the trunk in a stepwise manner combining sagittal and horizontal cross-sections. A vertical frame is attachable to a tree trunk, the vertical frame having a movable portion and a fixed portion. A first cutting device is attachable to the vertical frame and configured to cut the tree sagittally substantially along a longitudinal axis of the tree. A second cutting device is attachable to the vertical frame and configured to cut the tree horizontally from an exterior of the tree to a sagittal cut made in the tree by the first cutting device. A locking mechanism releasably locks the movable portion of the frame to the fixed portion of the frame. The apparatus uses the weight of the upper trunk to maintain stability to steadily decrease the tree height until the entire tree is removed.

A chainsaw may include a saw chain; a guide bar, a sprocket, a prime mover, a housing, a sprocket cover, and a guide member. The guide bar, the housing and the sprocket cover may define a chain passage. The guide member may include a first facing surface having an arc shape centered on the rotation axis and a second facing surface having an arc shape centered on a position offset from the rotation axis. When the chainsaw is placed on a horizontal mounting surface and viewed in the direction along the rotation axis, an angle between (i) a straight line connecting the rotation axis and a position where the first facing surface and the second facing surface are connected and (ii) a horizontal plane may be in a range of −10 degrees to 25 degrees.

A sawhorse includes a modular work surface supported by a frame. The modular work surface includes a first side portion, a second side portion and a central portion. The modular work surface is configured to move between a compact configuration and an expanded configuration. In the compact configuration the first side portion and the second side portion are adjacent to one another to provide a compact worktop and the central portion is positioned beneath the compact worktop. In the expanded configuration, the first side portion and the second side portion are distal to one another and the central portion is positioned therebetween to create an expanded worktop.

A method and apparatus are provided for vertically felling trees by taking apart the trunk in a stepwise manner combining sagittal and horizontal cross-sections. A vertical frame is attachable to a tree trunk, the vertical frame having a movable portion and a fixed portion. A first cutting device is attachable to the vertical frame and configured to cut the tree sagittally substantially along a longitudinal axis of the tree. A second cutting device is attachable to the vertical frame and configured to cut the tree horizontally from an exterior of the tree to a sagittal cut made in the tree by the first cutting device. A locking mechanism releasably locks the movable portion of the frame to the fixed portion of the frame. The apparatus uses the weight of the upper trunk to maintain stability to steadily decrease the tree height until the entire tree is removed.