Abstract: A safety device for use in a vehicle which is configured to be operated at least intermittently in an automated driving mode, in which the vehicle drives in an automated manner, and which includes a first data source which is designed as a human machine interface and configured to output data about a driving status, including computing device and a first data interface, the safety device being configured to receive data about the driving status from the first data source via the first data interface, the safety device being configured to receive data about the driving status from a second data source different from the first data source, and the safety device being configured to output pieces of information about the driving status to a driver, using an information output device and based on the data received from the first data source and the second data source.

Abstract: An information device is provided for informing a driver about a driving state of a motor vehicle drivable in an automated manner, the information device including a first control device for controlling automated driving of the motor vehicle and a second control device for controlling the automated driving of the motor vehicle, a first human-machine interface unit for communicating a driving state of the automated driving of the motor vehicle to the driver and a second human-machine interface unit for communicating the driving state of the automated driving of the motor vehicle to the driver, the first control device being designed for transmitting the driving state of the automated driving to the first human-machine interface unit and the second control device being designed for transmitting the driving state of the automated driving to the second human-machine interface unit.

Abstract: A safety device for use in a vehicle which is configured to be operated at least intermittently in an automated driving mode, in which the vehicle drives in an automated manner, and which includes a first data source which is designed as a human machine interface and configured to output data about a driving status, including computing device and a first data interface, the safety device being configured to receive data about the driving status from the first data source via the first data interface, the safety device being configured to receive data about the driving status from a second data source different from the first data source, and the safety device being configured to output pieces of information about the driving status to a driver, using an information output device and based on the data received from the first data source and the second data source.

Abstract: An information device is provided for informing a driver about a driving state of a motor vehicle drivable in an automated manner, the information device including a first control device for controlling automated driving of the motor vehicle and a second control device for controlling the automated driving of the motor vehicle, a first human-machine interface unit for communicating a driving state of the automated driving of the motor vehicle to the driver and a second human-machine interface unit for communicating the driving state of the automated driving of the motor vehicle to the driver, the first control device being designed for transmitting the driving state of the automated driving to the first human-machine interface unit and the second control device being designed for transmitting the driving state of the automated driving to the second human-machine interface unit.

Abstract: A tool-free blade change system in one embodiment includes a handle, an arbor bolt including a keyed portion configured to mate with a keyed bore of the handle to restrict rotation of the handle with respect to the arbor bolt, a blade washer defining a plurality of washer teeth which enmesh with the body teeth so as restrict rotation of the handle with respect to the blade washer in one direction while allowing rotation of the handle with respect to the blade washer in another direction, and a biasing member configured to bias the handle downwardly toward the blade washer, wherein the handle is axially movable with respect to the blade washer between a first position whereat the plurality of body teeth are enmeshed with the plurality of washer teeth and a second position whereat the plurality of body teeth are spaced apart from the plurality of washer teeth.

Abstract: A tool-free blade change system includes a sun gear, an arbor bolt including a threaded portion configured to threadedly engage a threaded bore of a power shaft, and a plurality of pins in fixed relationship with the threaded portion, a plurality of planetary gears engaged with the sun gear and located axially outwardly of the sun gear, each of the plurality of planetary gears mounted on a respective one of the plurality of pins, and an outer ring gear engaged with each of the plurality of planetary gears, wherein the sun gear is rotatable with respect to the outer ring gear.

Abstract: A tool-free blade change system includes a sun gear, an arbor bolt including a threaded portion configured to threadedly engage a threaded bore of a power shaft, and a plurality of pins in fixed relationship with the threaded portion, a plurality of planetary gears engaged with the sun gear and located axially outwardly of the sun gear, each of the plurality of planetary gears mounted on a respective one of the plurality of pins, and an outer ring gear engaged with each of the plurality of planetary gears, wherein the sun gear is rotatable with respect to the outer ring gear.

Abstract: A tool-free blade change system in one embodiment includes a handle, an arbor bolt including a keyed portion configured to mate with a keyed bore of the handle to restrict rotation of the handle with respect to the arbor bolt, a blade washer defining a plurality of washer teeth which enmesh with the body teeth so as restrict rotation of the handle with respect to the blade washer in one direction while allowing rotation of the handle with respect to the blade washer in another direction, and a biasing member configured to bias the handle downwardly toward the blade washer, wherein the handle is axially movable with respect to the blade washer between a first position whereat the plurality of body teeth are enmeshed with the plurality of washer teeth and a second position whereat the plurality of body teeth are spaced apart from the plurality of washer teeth.