A lock insert for a cylinder lock is disclosed for locking an electric switch, including a main part with an opening for receiving the cylinder lock. In an embodiment, the inner wall of the opening is designed to at least partially contact an outer wall of the cylinder lock, and in the inner wall at least one slot is formed to allow freedom of radial movement of locking elements in the cylinder lock, the positions of which correspond to a locked position of the cylinder lock.

A rotary switch includes a rotation movable portion, a movable conductor held in the rotation movable portion, a base portion, a power supply terminal held in the base portion, and a plurality of fixed contacts held in the base portion. The fixed contact and the power supply terminal are connected and disconnected via the movable conductor by a rotational operation of the rotation movable portion. The power supply terminal is disposed at a rotation center position of the rotation movable portion. The plurality of fixed contacts are disposed on a plurality of concentric circles having different diameter dimensions around the power supply terminal.

A powered device may include an engine, a mobility assembly operably coupled to the engine to provide mobility of the powered device responsive at least in part to operation of the engine, a working assembly operably coupled to the engine to perform a working function responsive at least in part to operation of the engine, and a key-operated combination ignition and speed control assembly including switch circuitry configured to control both starting the engine and selection of different selectable positions corresponding to respective different operating speeds for the engine.

A powered device may include an engine, a mobility assembly operably coupled to the engine to provide mobility of the powered device responsive at least in part to operation of the engine, a working assembly operably coupled to the engine to perform a working function responsive at least in part to operation of the engine, and a key-operated combination ignition and speed control assembly including switch circuitry configured to control both starting the engine and selection of different selectable positions corresponding to respective different operating speeds for the engine.

A control panel, a self-propelled switch apparatus, and a power device (13). The control panel comprises a push rod (1) connected to a machine body and a panel assembly (2) reciprocatingly sliding on the push rod. The control panel further comprises lock assemblies (41, 42) connected to the panel assembly. The lock assemblies (41, 42) are adapted to lock the panel assembly on the push rod and unlock the control panel and the push rod, so that a device in which the control panel is disposed can be switched between a manual-power driving mode and a self-propelled driving mode. By means of the solution, a garden tool can walk in a self-propelled manner, and can also be pushed to walk.

A wind turbine having a nacelle with a stationary region and a rotor, at least one blocking unit for blocking the rotor, and an access control system is provided. The access control system controls a locking of at least one access door to at least one closed-off region in the wind turbine depending on a blocking of the rotor by means of the least one blocking unit. The access control system has a key transfer system and a hydraulic control unit for controlling the blocking unit. The key transfer system has a hydraulic key unit for preventing an unintentional activation of the hydraulic unit and an access door key unit for locking or unlocking the access door. The key transfer system has at least one first and second key, the hydraulic control unit being locked or unlocked by means of the first key, and the access door key unit being locked or unlocked by means of the second key, and the key transfer system also having a fan key unit for activating or deactivating a fan, the first key of the hydraulic key unit being used to lock and unlock the fan key unit and a fan key being used as a second key for locking or unlocking the access door key unit.

A wind turbine having a nacelle with a stationary region and a rotor, at least one blocking unit for blocking the rotor, and an access control system is provided. The access control system controls a locking of at least one access door to at least one closed-off region in the wind turbine depending on a blocking of the rotor by means of the least one blocking unit. The access control system has a key transfer system and a hydraulic control unit for controlling the blocking unit. The key transfer system has a hydraulic key unit for preventing an unintentional activation of the hydraulic unit and an access door key unit for locking or unlocking the access door. The key transfer system has at least one first and second key, the hydraulic control unit being locked or unlocked by means of the first key, and the access door key unit being locked or unlocked by means of the second key, and the key transfer system also having a fan key unit for activating or deactivating a fan, the first key of the hydraulic key unit being used to lock and unlock the fan key unit and a fan key being used as a second key for locking or unlocking the access door key unit.

A modular structure for safety switches for controlling access for machines and industrial plants comprises a casing (2) housing switching means for controlling one or more circuits of the machine or plant, drive means adapted to interact with the switching means upon the opening/closing of the access, an auxiliary module (3-3.sup.v) housing at least one control (4.sup.i-4.sup.v) adapted to be manually operated to operate on the switching means and/or the drive means and comprising a box hollow body (5) having at least one opening (6) for inserting the control (4.sup.i-4.sup.v) provided with first means for removably connecting the control (4.sup.i-4.sup.v), the latter being selected within a series of controls (4.sup.i-4.sup.v) having functions different from each other and each provided with a fastening rod (7.sup.i-7.sup.v) adapted to be inserted in the opening (6) of the box body (5) and provided with second connecting means complementary to the first connecting means.

A modular structure for safety switches for controlling access for machines and industrial plants comprises a casing (2) housing switching means for controlling one or more circuits of the machine or plant, drive means adapted to interact with the switching means upon the opening/closing of the access, an auxiliary module (3-3.sup.v) housing at least one control (4.sup.i-4.sup.v) adapted to be manually operated to operate on the switching means and/or the drive means and comprising a box hollow body (5) having at least one opening (6) for inserting the control (4.sup.i-4.sup.v) provided with first means for removably connecting the control (4.sup.i-4.sup.v), the latter being selected within a series of controls (4.sup.i-4.sup.v) having functions different from each other and each provided with a fastening rod (7.sup.i-7.sup.v) adapted to be inserted in the opening (6) of the box body (5) and provided with second connecting means complementary to the first connecting means.

The invention relates to a safety switch assembly (100) having a switch installation (120) having at least one switching member (12) and at least one actuation installation (110) having at least one assigned actuator (13, 13, 13, 14), wherein a transmission installation (130) having at least one transmission member (135) which is coupleable or coupled to the switching member (12, 12a), on the one hand, and to the at least one actuator (13, 13, 13, 14), on the other hand is provided between the actuation installation (110) and the switch installation (120). In order to have available a safety switch assembly (100) in which a mechanical fault does not lead to a failure of that functionality that optionally permits the integration of a diagnostic function in order for the system in the case of a fault being detected to be able to be brought back to a safe state and that permits a transfer of mechanical as well as of electrical/electronic functions across the entire system, it is provided that the transmission installation (120) is provided with a plurality of separate transmission members (135) which in the actuation of the at least one actuator (13, 13, 13, 14) of the actuation installation (110) are drivable or driven in a synchronous and mutually independent manner, and that each of the transmission members (135) by way of a rotary movement is permitted to convert an actuation movement of the at least one actuator (13, 13, 13, 14) to a translatory movement of in each case one separate switching member (12, 12a) of the switch installation (120). (FIG. 4).