A method for the cutting of material is to be cut by means of a cutting machine which includes a horizontal cutting support for material to be cut, a horizontal cutting blade displaceable in height above the cutting support for cutting the material to be cut supported on the cutting support, a drive motor for the height displacement of the cutting blade, a manual control for the drive motor, and a protection device safeguarding the working region of the cutting machine. The method has the steps of: lowering the cutting blade, when the protection device is not interrupted, by actuating the manual control; and stopping the cutting blade which is being lowered when the protection device is interrupted. Immediately after stopping the cutting blade which is being lowered, the drive motor is operated to reverse the cutting blade under safety monitoring into a nondangerous upper safety location.

Disclosed is a cutting machine, having a table with a working surface designed to receive an object to be cut, a light curtain device and a protective pane. A crossbeam is arranged above tho working surface, designed for linear positioning parallel to a first horizontal axis. A module is mounted on the crossbeam and provides for linear positioning, parallel to a second horizontal axis. The second horizontal axis extends at right angles to the first horizontal axis. In a first operating state, the protective pane on one side of the table is below the working surface plane. In a second operating state, both the protective patio and a light curtain generated by the light curtain device, on the side of the table are at least partially above the working surface. In the second operating state the light curtain is located at least partially above the protective pane.

Disclosed is a cutting machine, having a table with a working surface designed to receive an object to be cut, a light curtain device and a protective pane. A crossbeam is arranged above tho working surface, designed for linear positioning parallel to a first horizontal axis. A module is mounted on the crossbeam and provides for linear positioning, parallel to a second horizontal axis. The second horizontal axis extends at right angles to the first horizontal axis. In a first operating state, the protective pane on one side of the table is below the working surface plane. In a second operating state, both the protective patio and a light curtain generated by the light curtain device, on the side of the table are at least partially above the working surface. In the second operating state the light curtain is located at least partially above the protective pane.

A safety cutting tool has an electrically conductive cutting element, an electrically controlled actuating motor drivingly connected to the cutting element, a gripping handle electrically insulated from the cutting element and adapted to receive a hand of an operator therein, a cutting trigger control electrically insulated from the cutting element and adapted to be actuated by the hand of the operator, and an emergency stop device that is able to respond to a contact of the operator with the cutting element. The emergency stop device includes a first manual contact, electrode and a second manual contact electrode with an electrical monitoring circuit connected thereto.

A food slicer includes a cleaning timer for providing warnings to a user and renders the slicer inoperable after a period of usage. The period of usage may be established by food regulations. In advance of that period, warnings are provided that remind the user to clean the slicer. Shutting off the slicer for cleaning resets the timer. If the period of usage passes, then the slicer becomes inoperable until the user shuts off the slicer for cleaning, which automatically resets the timer and the slicer then becomes operable.

Disclosed are a control device for a power tool and a power tool provided with the control device. The control device includes an operation control interface which is provided with a manually operated controller; an impedance-measuring safety interface, wherein the impedance-measuring interface includes a first manual contact electrode and a second manual contact electrode which are electrically isolated from each other, and wherein the manual contact electrodes are provided on the controller and extend over a manual bearing surface of the controller. The device is suitable for controlling and ensuring the safe use of power tools, especially electrical tools, such as pruning shears.

Disclosed are a control device for a power tool and a power tool provided with the control device. The control device includes an operation control interface which is provided with a manually operated controller; an impedance-measuring safety interface, wherein the impedance-measuring interface includes a first manual contact electrode and a second manual contact electrode which are electrically isolated from each other, and wherein the manual contact electrodes are provided on the controller and extend over a manual bearing surface of the controller. The device is suitable for controlling and ensuring the safe use of power tools, especially electrical tools, such as pruning shears.

A cutting apparatus cuts a fabric using a rotary blade and a fixed blade that are built into a cutter head. The fixed blade is linked, to the other-end side of a swing arm of which one end is pivotally fitted on a blade frame by a swing shaft. The fixed blade is urged by a coil spring connected to the one-end side of the swing arm. When a prescribed resistance force is applied to the fixed blade, a position sensor detects movement of the swing arm, a fixed blade drive cylinder drives the swing arm in response to the detection, and the fixed blade is moved to an accommodation position that is above the position during cutting and that is on an opposite side in the advancing direction of the cutter head.

An operational monitoring system for use with a liquid jet cutting system can include an accelerometer coupled to a cutting head of the liquid jet cutting system. The accelerometer can be configured to generate motion data associated with movement of the cutting head. The system can include a computing device operably connected to the accelerometer and having a memory and a processor. The memory can store a planned data set including expected parameters associated with movement of the cutting head along a planned cut path. In some embodiments, the computing device is configured to receive the motion data from the accelerometer and correlate the motion data to the planned data set.

A safety cutting tool includes an electrically conductive cutting member, an electric motor for actuating the cutting member, a gripping handle electrically insulated from the cutting tool, a cutting trigger control that can be actuated by the hand of the user gripping the gripping handle, the cutting trigger control being electrically insulated from the cutting tool, an emergency stop device sensitive to a user coming into contact with the cutting member. The emergency stop device is controlled by a comparator comparing an impedance of a first electric circuit comprising the cutting tool and a second electric circuit used as a reference, the first and second circuits having manual contact electrodes provided on at least one of the gripping handle of the tool and the cutting trigger control. A method for controlling such a tool is also disclosed. The tool and method are is-applicable to electric secateurs and shears.