Fast-ejection safety systems for hotwire cutters are provided. The safety system comprises a microcontroller, a wire shield, a servo motor and a servo motor arm. The safety system further comprises one or more ultrasonic sensors, a power source, and a safety system casing.

A handheld work apparatus has a drive motor for driving a tool, an operating element for operating the drive motor, a first inhibiting unit and a second inhibiting unit. Each inhibiting unit has a disable state and an enable state. The operating element is inhibited for operating the drive motor when at least one of the inhibiting units is in its disable state. The work apparatus further has a locking device which locks the first inhibiting unit in its enable state if the second inhibiting unit is in its enable state. A method for operating the work apparatus provides that the first inhibiting unit is locked in its enable state when the first inhibiting unit and the second inhibiting unit are situated in their enable states at the same time.

A motor drive system enabling detection of cutting fluid deposited at a housing of electronic components. A housing holding electronic components of a motor drive system has top faces slanted with respect to the horizontal plane so as to guide the deposited cutting fluid. The housing further includes storage parts collecting the cutting fluid guided along the top faces. The storage parts may be graduated so as to enable the collected amount of the cutting fluid to be measured. The storage parts may be configured to be detachable from the housing.

The disclosure includes a protective device for a machine, a method of operating a protective device, and a protective system including the protective device and the machine. The protective device may include a sensor array disposed on the machine. The sensor array may have a plurality of time-of-flight (TOF) sensors arranged to form a sensible field for TOF measurements, and a controller configured to define a safety area within the sensible field, detect an object within the sensible field, and generate a safety output that controls an operation of the machine in response to the object being detected within the safety area. The machine may include woodworking machines or other machines having debris or particles in the surrounding environment during operation.

A work-machine splash guard for enclosing a space for machining a workpiece, and preventing the spraying of chips and machining fluid, is equipped with: a front-surface door for opening and closing in the horizontal direction via an arc-shaped movement, and positioned on the front-surface side of the work machine; a side-surface door for opening and closing by performing an arc-shaped movement that is concentric with the front-surface door, and overlapping with the front-surface door; and door-locking switches for selectively allowing the opening/closing of the front-surface door and the side-surface door according to an opening/closing pattern.

A handheld driving apparatus includes a container having a grasping member, a lock member having a protrusion, a trigger lever, and an action unit. The lock member moves between first and second positions along right and left directions. The second position is a fully pressed position. The trigger lever moves between third and fourth positions. The fourth position is a fully pressed position. The trigger lever is restricted from moving toward the fourth position by contacting the first protrusion when the lock member is in the first position. The trigger lever is free to move toward the fourth position without contacting the first protrusion when the lock member is in the second position. The action unit performs a mechanical action for mowing or cutting an object when the trigger lever is in the fourth position.

A machine tool device, in particular circular saw device, includes (i) a clamping unit for fixing a tool, in particular a circular saw blade, (ii) a protective cover, which at least partly surrounds a tool holder region for the tool, (iii) an actuation unit for actuating the clamping unit, and (iv) a guard unit which blocks the actuation unit when the protective cover is at least partly open.

A handheld work apparatus includes an actuating element (8) for actuating a drive motor (3), and a blocking element (9) arranged on a top side (6) of a handle portion (5). The blocking element (9) is operatively connected to the actuating element (8). A control circuit (17) for controlling the drive motor (3) is provided. A switch (15) can be actuated via the blocking element (9) and has a switching element (16). The switch (15) sends a signal to the control circuit (17) in an activated state. The switch (15) is arranged in the handle portion (5) between the blocking element (9) and a bottom side (7) of the handle portion (5) and is oriented such that the switching element (16) of the switch (15) faces the bottom side (7) of the handle portion (5).

A machining center is provided, which can complete replacement of processed works on stock shelves in a work storage section with unprocessed works within a time period significantly shorter than those in conventional techniques and improve the efficiency of an entire processing process. In the machining center, a cover surrounding the work storage section includes an opening portion where rear surface regions of the stock shelves are exposed, a stock shelf access door that closes the opening portion and is driven to be opened and closed, a locking device for the stock shelf access door, a unlocking mechanism that is operable from the outer side of the cover to unlock the locking device, and a door opening/closing detection device that detects an opened or closed state of the stock shelf access door. A control unit of a CNC device includes an interlocking function of disabling the unlocking mechanism while an automatic pallet changer is driven, and a safety control function of prohibiting, based on a detection signal from the door opening/closing detection device, a drive unit of the automatic pallet changer from being driven while the stock shelf access door is in the opened state.