Safety system for mowers and mower therwith

A mower adapted to be moved along a field with plants to be cut, the mower comprising:

• a carrier and at least one cutter mounted on the mower via the carrier and adapted to cut the plants;
• and
• a safety system comprising
• a control unit,
• at least one detector adapted to
• detect a presence of an obstacle in front of the at least one cutter and within a predefined distance from the at least one cutter, and
• provide a warning signal to the control unit when the presence of the obstacle is detected, and
• at least one safety device adapted to cause a separation between the obstacle and the at least one cutter when the mower is moved forwards,
• wherein the control unit is configured to provide a separation signal to the at least one safety device in response to receiving the warning signal;
• wherein the at least one safety device is configured to cause the separation in response to receiving the separation signal;
• wherein the safety system is configured so that the separation is caused fast enough to ensure that the obstacle is not hit by the at least one cutter while the mower is moved forwards at working speed;
• wherein said at least one safety device comprises
• at least one shield which is movable between a retracted position in which said at least one shield does not cover the at least one cutter and a protecting position in which said at least one shield extends in front of the at least one cutter to prevent contact between the at least one cutter and the obstacle,
• and/or
• at least one slider actuator with an upper end connected to the carrier, and
• at least one slider mounted at a lower end of the slider actuator,
• wherein the separation signal actuates the slider actuator to assume an extended state so that the slider can slide along the field while the carrier is lifted to such a height that the at least one cutter can pass above the obstacle without hitting said obstacle.