The invention relates to an engagement relays (20) for an electric machine which preferably serves as a starter device (10) for engaging a pinion, wherein the engagement relay (20) has a contact device (65) for electrically connecting electrical contacts (120, 121) having a switching axis (67) which can be actuated for the purpose of electrical connection, having a thrust motor (60) which serves to shift the switching axis (67) and the thrust motor (60) has a movable part (57) which serves to activate the switching axis (67), wherein the movable part (57) is connected to a driver (85), wherein a stop part (84) can move relative to the movable part (57) of the thrust motor (60) in a state of rest of the engagement relay (20) there is a gap(s) between the stop part (84) and the driver (85), wherein after the switching of the engagement relay (20) a contact device (65) is activated and as a result a switch of the circuit of the starter motor (23) is closed, wherein a movable part (57) of a thrust motor (60) of the engagement relay (20) I connected to a driver (85) and by means of a switch-on-movement of the movable part (57) the driver (85) brings about an engagement force with an engagement lever (22), in order to mesh a pinion (25) in a toothed ring (15), characterized in that a stop part (84) is arranged between the movable part (57) of the thrust motor (60) and the driver (85), wherein firstly there is a gap(s) with an initial size between the driver (85) and the stop part (84) and when the movable part (57) of the thrust motor (60) moves during switching the gap(s) is made smaller.

The invention relates to an engagement relays (20) for an electric machine which preferably serves as a starter device (10) for engaging a pinion, wherein the engagement relay (20) has a contact device (65) for electrically connecting electrical contacts (120, 121) having a switching axis (67) which can be actuated for the purpose of electrical connection, having a thrust motor (60) which serves to shift the switching axis (67) and the thrust motor (60) has a movable part (57) which serves to activate the switching axis (67), wherein the movable part (57) is connected to a driver (85), wherein a stop part (84) can move relative to the movable part (57) of the thrust motor (60) in a state of rest of the engagement relay (20) there is a gap(s) between the stop part (84) and the driver (85), wherein after the switching of the engagement relay (20) a contact device (65) is activated and as a result a switch of the circuit of the starter motor (23) is closed, wherein a movable part (57) of a thrust motor (60) of the engagement relay (20) I connected to a driver (85) and by means of a switch-on-movement of the movable part (57) the driver (85) brings about an engagement force with an engagement lever (22), in order to mesh a pinion (25) in a toothed ring (15), characterized in that a stop part (84) is arranged between the movable part (57) of the thrust motor (60) and the driver (85), wherein firstly there is a gap(s) with an initial size between the driver (85) and the stop part (84) and when the movable part (57) of the thrust motor (60) moves during switching the gap(s) is made smaller.

The invention relates to an engagement relays (20) for an electric machine which preferably serves as a starter device (10) for engaging a pinion, wherein the engagement relay (20) has a contact device (65) for electrically connecting electrical contacts (120, 121) having a switching axis (67) which can be actuated for the purpose of electrical connection, having a thrust motor (60) which serves to shift the switching axis (67) and the thrust motor (60) has a movable part (57) which serves to activate the switching axis (67), wherein the movable part (57) is connected to a driver (85), wherein a stop part (84) can move relative to the movable part (57) of the thrust motor (60) in a state of rest of the engagement relay (20) there is a gap(s) between the stop part (84) and the driver (85), wherein after the switching of the engagement relay (20) a contact device (65) is activated and as a result a switch of the circuit of the starter motor (23) is closed, wherein a movable part (57) of a thrust motor (60) of the engagement relay (20) I connected to a driver (85) and by means of a switch-on-movement of the movable part (57) the driver (85) brings about an engagement force with an engagement lever (22), in order to mesh a pinion (25) in a toothed ring (15), characterized in that a stop part (84) is arranged between the movable part (57) of the thrust motor (60) and the driver (85), wherein firstly there is a gap(s) with an initial size between the driver (85) and the stop part (84) and when the movable part (57) of the thrust motor (60) moves during switching the gap(s) is made smaller.

A mains-operated handheld machine tool includes a tool housing, an electric drive motor arranged in the housing and configured to drive an associated tool insert, and a slide switch arranged, at least in a longitudinally displaceable fashion, on the tool housing and coupled to a sliding element configured to switch the drive motor on and off. The mains-operated handheld machine also includes a protection device with an electromechanical relay. The protection device is configured to prevent, by way of the electromechanical relay, uncontrolled restarting of the drive motor after an interruption to a corresponding power supply to the drive motor as a result of latching of the relay being canceled.

A mains-operated handheld machine tool includes a tool housing, an electric drive motor arranged in the housing and configured to drive an associated tool insert, and a slide switch arranged, at least in a longitudinally displaceable fashion, on the tool housing and coupled to a sliding element configured to switch the drive motor on and off. The mains-operated handheld machine also includes a protection device with an electromechanical relay. The protection device is configured to prevent, by way of the electromechanical relay, uncontrolled restarting of the drive motor after an interruption to a corresponding power supply to the drive motor as a result of latching of the relay being canceled.

In some embodiments, a DC relay includes a pair of fixed contacts fixedly installed on one side of a frame, a movable contact movably installed below the pair of fixed contacts and brought into contact with the pair of fixed contacts or separated therefrom, an insulating plate installed below the movable contact, a contact spring provided between the movable contact and the insulating plate, a plate installed below the insulating plate and including a through hole formed in a central portion thereof, a fixed core inserted from above the plate through the through hole and including a shaft hole formed at the center thereof, an anti-noise pad provided between the fixed core and the insulating plate, a movable core installed to be linearly movable below the fixed core, and a shaft installed to penetrate through the through hole.

A method is disclosed for operating an electric switch having at least one movable switch contact, movable by a movable armature of an electromagnetic actuator to switch the switch on and off, a spring device arranged between the movable switch contact and the armature and, in order to move the armature from a starting position to an armature end position, a magnetic flux being generated in an exciter winding of the actuator by an exciter current being fed into the exciter winding. According to an embodiment and taking into account a position data set which specifies the respective armature position as a function of magnetomotive values and flux values, an armature positioncalled the contact strike armature position belowis determined at which the switch contacts meet each other during the closing operation, before the armature reaches the armature end position.

A method is disclosed for operating an electric switch having at least one movable switch contact, movable by a movable armature of an electromagnetic actuator to switch the switch on and off, a spring device arranged between the movable switch contact and the armature and, in order to move the armature from a starting position to an armature end position, a magnetic flux being generated in an exciter winding of the actuator by an exciter current being fed into the exciter winding. According to an embodiment and taking into account a position data set which specifies the respective armature position as a function of magnetomotive values and flux values, an armature positioncalled the contact strike armature position belowis determined at which the switch contacts meet each other during the closing operation, before the armature reaches the armature end position.

In some embodiments, a DC relay includes a pair of fixed contacts fixedly installed on one side of a frame, a movable contact movably installed below the pair of fixed contacts and brought into contact with the pair of fixed contacts or separated therefrom, an insulating plate installed below the movable contact, a contact spring provided between the movable contact and the insulating plate, a plate installed below the insulating plate and including a through hole formed in a central portion thereof, a fixed core inserted from above the plate through the through hole and including a shaft hole formed at the center thereof, an anti-noise pad provided between the fixed core and the insulating plate, a movable core installed to be linearly movable below the fixed core, and a shaft installed to penetrate through the through hole.

A method is disclosed for operating an electric switch having at least one movable switch contact, movable by a movable armature of an electromagnetic actuator to switch the switch on and off, a spring device arranged between the movable switch contact and the armature and, in order to move the armature from a starting position to an armature end position, a magnetic flux being generated in an exciter winding of the actuator by an exciter current being fed into the exciter winding. According to an embodiment and taking into account a position data set which specifies the respective armature position as a function of magnetomotive values and flux values, an armature positioncalled the contact strike armature position belowis determined at which the switch contacts meet each other during the closing operation, before the armature reaches the armature end position.