An apparatus for mechanically splitting materials has a body with a cutting element arranged relative thereto. The cutting element has at least one cutting surface oriented vertically. The splitting apparatus has the cutting element applying an upward pressure against the material which is split when a separate downward force is applied to the material. The body of the splitting apparatus also has a safety element to protect the user from the cutting element; an elongate supporting element to distance the safety element from either or both the cutting element and a surface on which the splitting apparatus is used; a stabilizing element to stabilize the splitting apparatus relative to a surface on which the splitting apparatus is used; and optionally a deflecting element to deflect split materials away from the cutting element and container element to contain therewithin split materials produced during the splitting.

A method for forming grooves in a board element. An exemplary method includes arranging the board element in contact with a support member, and forming at least one groove in a rear side of the board element by removing material, such as chips, from the board element by rotating one or more cutting devices including a plurality of tooth elements configured to rotate around a rotational axis. A method further includes counteracting, such as preventing, a displacement of the board element away from the support member during forming of the at least one groove, wherein the counteracting, such as preventing, includes arranging at least a portion of the board element between an obstruction element and the support member.

A machine tool device includes at least one motor-driven machining tool; at least one sensor unit, in particular a capacitive sensor unit, which is configured to detect at least one foreign body in at least one detection area around the machining tool; and at least one open-loop and/or closed-loop control unit configured to trigger at least one action in accordance with at least one signal from the sensor unit. The sensor unit includes at least one antenna configured to emit at least one electric and/or magnetic field defining the at least one detection area and/or to detect the at least one foreign body in accordance with at least one change in at least one electric and/or magnetic field.

A power tool operator protection system comprises a plurality of wearable position sensors configured to be worn by an operator of a handheld power tool; a power tool position sensor configured to detect the position of a handheld power tool; and processing equipment configured to generate a model of the operator based on the mutual positions of the respective wearable sensors relative to each other, the mutual positions defining the operator's posture; associate each of a plurality of limbs (32a-g) of the operator with a respective protection volume (30a-g); and based on the position and/or motion of the power tool in relation to the protection volume (30a-g) indicating an imminent danger that the working implement enters a protection volume (30a-g), generate a protection signal.

A power tool operator protection system comprises a plurality of wearable position sensors configured to be worn by an operator of a handheld power tool; a power tool position sensor configured to detect the position of a handheld power tool; and processing equipment configured to generate a model of the operator based on the mutual positions of the respective wearable sensors relative to each other, the mutual positions defining the operator's posture; associate each of a plurality of limbs (32a-g) of the operator with a respective protection volume (30a-g); and based on the position and/or motion of the power tool in relation to the protection volume (30a-g) indicating an imminent danger that the working implement enters a protection volume (30a-g), generate a protection signal.

Method, apparatus, and system for operation of a timber-working device configured to perform at least one operation having an associated hazard zone. At least one signal from at least one orientation sensor associated with the timber-working head may indicate whether a predetermined location is within the hazard zone based on the orientation of the timber-working head. Operation of the timber-working head can be controlled based on the signal.

Method, apparatus, and system for operation of a timber-working device configured to perform at least one operation having an associated hazard zone. At least one signal from at least one orientation sensor associated with the timber-working head may indicate whether a predetermined location is within the hazard zone based on the orientation of the timber-working head. Operation of the timber-working head can be controlled based on the signal.

An electric device, including a body, a working module, a control module, and a radar, where the radar includes: an antenna unit, configured to transmit and receive an electromagnetic wave signal; a transmitting unit, configured to generate an electromagnetic wave signal transmitted by the antenna unit; a receiving unit, configured to process an electromagnetic wave signal received by the antenna unit; and a control unit, connected to the transmitting unit and the receiving unit; where the antenna unit, the transmitting unit, the receiving unit, and the control unit are integrated in one chip. The described chip-type radar is small in size and low in cost, the detection accuracy is improved through the combination of multiple radars, and the influence on appearance design is minimized.

Disclosed is an apparatus for mechanically splitting materials, including a body with a cutting element arranged relative thereto. The cutting element includes at least one cutting surface oriented vertically. The splitting apparatus includes the cutting element applying an upward pressure against the material which is split when a separate downward force is applied to the material. The body of the splitting apparatus also includes a safety element to protect the user from the cutting element; an elongate supporting element to distance the safety element from either or both the cutting element and a surface on which the splitting apparatus is used; a stabilizing element to stabilize the splitting apparatus relative to a surface on which the splitting apparatus is used; and optionally a deflecting element to deflect split materials away from the cutting element and container element to contain therewithin split materials produced during the splitting.

Disclosed is an apparatus for mechanically splitting materials, including a body with a cutting element arranged relative thereto. The cutting element includes at least one cutting surface oriented vertically. The splitting apparatus includes the cutting element applying an upward pressure against the material which is split when a separate downward force is applied to the material. The body of the splitting apparatus also includes a safety element to protect the user from the cutting element; an elongate supporting element to distance the safety element from either or both the cutting element and a surface on which the splitting apparatus is used; a stabilizing element to stabilize the splitting apparatus relative to a surface on which the splitting apparatus is used; and optionally a deflecting element to deflect split materials away from the cutting element and container element to contain therewithin split materials produced during the splitting.