A drive device for a protective hood of a machine includes a counterweight, a pulling means connecting the protective hood to the counterweight, a motor, and a freewheel. The freewheel connects the motor to the pulling means and is arranged to block when a weight force of the protective hood is greater than a weight force of the counterweight. The freewheel may be a linear freewheel or the freewheel may operate between two rotatable elements. The freewheel may be a frictionally locking freewheel or a positive locking freewheel.

A drive device for a protective hood of a machine includes a counterweight, a pulling means connecting the protective hood to the counterweight, a motor, and a freewheel. The freewheel connects the motor to the pulling means and is arranged to block when a weight force of the protective hood is greater than a weight force of the counterweight. The freewheel may be a linear freewheel or the freewheel may operate between two rotatable elements. The freewheel may be a frictionally locking freewheel or a positive locking freewheel.

An automated device, in particular a robot, comprises: a movable structure; actuator means, for causing displacements of the movable structure; a control system, which includes a control unit and is able to control the actuator means; and a sensorized covering, which covers at least part of the movable structure and integrates sensor means that include at least one of contact sensor means and proximity sensor means.

The sensorized covering comprises a plurality of covering modules, each having a respective load-bearing structure of a predefined shape associated to which is at least one layer of elastically yielding material. The plurality of covering modules comprises one or more sensorized covering modules, which include respective sensor means. The load-bearing structure of at least some of the covering modules has electrical connector means associated thereto, for enabling separable electrical connection of at least two different covering modules that are adjacent to one another.

An automated device, in particular a robot, comprises: a movable structure; actuator means, for causing displacements of the movable structure; a control system, which includes a control unit and is able to control the actuator means; and a sensorized covering, which covers at least part of the movable structure and integrates sensor means that include at least one of contact sensor means and proximity sensor means.

The sensorized covering comprises a plurality of covering modules, each having a respective load-bearing structure of a predefined shape associated to which is at least one layer of elastically yielding material. The plurality of covering modules comprises one or more sensorized covering modules, which include respective sensor means. The load-bearing structure of at least some of the covering modules has electrical connector means associated thereto, for enabling separable electrical connection of at least two different covering modules that are adjacent to one another.

An electric working machine may include a support rod extending in a front-rear direction; a head unit attached to a front end of the support rod and including a front tool and a motor configured to drive the front tool; and a grip unit attached to a rear end of the support rod. The grip unit may include a grip housing configured to be gripped by an operator; a detection sensor attached to the grip housing and configured to detect an on/off operation for the motor by the operator; and a presence sensor attached to the grip housing and configured to detect a grip by the operator on the grip housing. The support rod may not penetrate through the grip housing. In a rear plan view of the electric working machine, at least one of the detection sensor and the presence sensor at least partially may overlap the support rod.

A shovel includes a detecting part configured to detect a person around the shovel. The detecting part detects a first person with a relatively high probability, a second person with a relatively lower probability than the first person, and a third person with a relatively lower probability than the second person, wherein the first person wears both a helmet and clothing with a reflective material, the second person wears one of the helmet and the clothing with the reflective material, and the third person wears neither the helmet nor the clothing with the reflective material.

An electric working machine may include a support rod extending in a front-rear direction; a head unit attached to a front end of the support rod and including a front tool and a motor configured to drive the front tool; and a grip unit attached to a rear end of the support rod. The grip unit may include a grip housing configured to be gripped by an operator; a detection sensor attached to the grip housing and configured to detect an on/off operation for the motor by the operator; and a presence sensor attached to the grip housing and configured to detect a grip by the operator on the grip housing. The support rod may not penetrate through the grip housing. in a rear plan view of the electric working machine, at least one of the detection sensor and the presence sensor at least partially may overlap the support rod.

The invention relates to a method for the emergency shutdown of hand-guided tools having a drive, wherein the hand-guided tool is connected mechanically to at least one camera and the camera and/or the tool is/are provided with an evaluation unit having image processing software, in which the following steps are provided: activating the camera, monitoring a predefined danger area of the hand-guided tool by means of the camera, processing and evaluating the captured image data by means of the evaluation unit and the image processing software with regard to the presence of a human body part in the danger area, and generating a warning signal, slowing down the drive of the hand-guided tool and/or stopping the drive of the hand-guided tool if a human body part is present in the danger area.

A first electrode and a second electrode carry out welding in cooperation with each other. A power supply applies a first voltage between the first electrode and the second electrode. A control device controls whether to carry out welding on a first object on the basis of information that varies with a material of the first object and that has been detected in a state where the first object is in contact with the first electrode and the second electrode.

A first electrode and a second electrode carry out welding in cooperation with each other. A power supply applies a first voltage between the first electrode and the second electrode. A control device controls whether to carry out welding on a first object on the basis of information that varies with a material of the first object and that has been detected in a state where the first object is in contact with the first electrode and the second electrode.