Abstract: A device (1) monitors the state of a system (2), in particular safety switches for monitoring the closed state of safety equipment (2) of a machine (3). The device (1) is provided with a switch head (10) and an actuator (8), which can be brought into interaction with one another to control the device (1). The switch head (10) has an optical signaler (14) for optically signaling an operational state of the actuator (8) provided with a light-guide (28) having at least one entrance window (32) and at least one exit window (34, 36). In a state of the device (1) in which the switch bead (10) and the actuator (8) are interacting with one another, the light emitted by the signaler (14) enters, at least in part, via the at least one entrance window (32) and exits via the at least one exit window (34. 36).

Abstract: An apparatus (1) monitors a protective device (2) of a machine (4). The apparatus (1) has a switch housing (22) with a switch head (24) and an actuator (8). In the closed state of the protective device (2), the actuator interacts with the switch head (24) with that closed state being signaled. The apparatus (1) has a tumbler device (20) with a tumbler element (30) mounted movably in the apparatus (1) to lock releasably the closed state. The tumbler device (20) has a permanent magnet (34). The magnetic force fixes the tumbler element (30) in a first position when the power supply to the apparatus (1) is switched off to lock the closed state of the protective device (2), in a second position with the tumbler device (20) not locking the closed state.

Abstract: An apparatus (1) for monitoring the state of a protective device (2) of a machine (4) in particular is a safety switch for monitoring the closed state of a protective door or the like. The apparatus (1) has a switch housing (22) with a switch head (24) and an actuator (8). In the closed state of the protective device (2), the actuator interacts with the switch head (24) and, as a result, the closed state of the protective device (2) can be signaled. The apparatus (1) has a tumbler device (20) with a tumbler element (30) mounted movably in the apparatus (1) and by which the closed state of the protective device (2) can be locked releasably. The tumbler device (20) has at least one permanent magnet (34).

Abstract: A device (1) maintains a locked and closed state of a space separating device (2) in a releasable manner, in particular a protective device of a machine (4). The device has a first part (6) with an opening and a second part (8). The parts are movable relative to one another. The opening is at least partially closable. The device (1) includes a latch (18) for locking the closed state of the space-separating device (2), a holding element (30) for keeping the latch (18) in the latched position, and a release element (36) for releasing the catch of the latch (18). The catch of the latch (18) may be lifted by a rotational movement of the release element (36) relative to the latch (18).

Abstract: A locking system (1) for a safety switch includes a read head (2) and an actuator (3), each of which is provided with first or second componentry (10, 14) encompassing electrical and/or electronic components that interact with each other in an electrically contactless manner, thereby controlling the safety switch. The locking system actuator (3) can be locked to the read head (2) by a switchable electromagnet (7) which interacts with a counterelement (12). The locking action is controlled by a sensor element (31, 32, 33, 34), the output signal of which depends on the magnetic field generated by the electromagnet (7).

Abstract: A locking system is for a safety switch. The switch has a reading head (2) and an actuator (3) with first and second modules (10, 14) containing electric and/or electronic components. The components can be caused to interact electrically in a contactless manner to control the safety switch. The actuator (3) can be locked on the reading head (2) by a controllable electromagnet (7), which cooperates with a counterelement (12). The counter-element (12) and/or the electromagnet (7) is/are connected in a fixed manner to a corresponding base element (13), which is fixed to the actuator (3) or reading head (2), but can be pivoted in relation to the base element. The first and/or second module (10, 14) is/are integrated into the respective counter-element (12).

Abstract: The invention is related to a locking system (1) for a safety switch, comprising a read head (2) and an actuator (3), each of which is provided with a first or second componentry (10, 14) encompassing electrical and/or electronic components that interact with each other in an electrically contactless manner, thereby controlling the safety switch. The inventive locking system is characterized by the fact that the actuator (3) can be locked to the read head (2) by means of a switchable electromagnet (7) which interacts with a counterelement (12) and that the locking action is controlled by means of a sensor element (31, 32, 33, 34), the output signal of which depends on the magnetic field generated by the electromagnet (7).

Abstract: A device switches an electrical connection in accordance with the condition of a device to be monitored, especially to a safety switch (1) for a protective device. The safety switch includes a housing (2,3) in which a switch disk (7) is mounted for rotation about an axis (8). An actuator (5) can be inserted for triggering the switching process. A latching device blocks the switch disk (7). The latching device has a latching element (12a, 12b) guided in the switch disk (7) and movable against the effect of a first energy accumulator (11). In a position in which it blocks the switch disk (7), the latching element (12a, 12b) engages an associated recess (13a, 13b) in the housing (2, 3). A rotatable release element (14a, 14b) disposed beside the switch disk (7), is rotatable relative to the switch disk (7) when the actuator (5) is inserted.

Abstract: A device for switching a connection according to the state of an apparatus to be monitored, especially a safety switch, includes an actuator having first signaling device preferably be fixed on the apparatus to be monitored. The actuator can be brought into contact with an actuator receiver having a second signaling device and can be detachably held to prevent it from being withdrawn. A signal transfer can be carried out in a contactless manner between the first and the second signaling devices. The actuator and the actuator receiver are engaged in an interlocking manner when touching. The first and second signaling devices are arranged such that signal transfer between the actuator and the actuator receiver is only possible in the position in which they are engaged in an interlocking manner.

Abstract: A safety switch (1, 101) for switching a connection in relation to the status of a device to be monitored. The safety switch (1, 101) utilizes an actuator (2, 102) that that can be inserted into the safety switch (1, 101) from a first side (6, 106) and can be withdrawn from a second side (30, 130). The actuator (2, 102) forms a releasable locking engagement with an actuator receptacle (8, 108) located inside the safety switch (1, 101) to form a signal transfer (14,16). The safety switch (1, 101) also can have an ejector that removes the actuator from the actuator receptacle (8, 108).

Abstract: A device for switching an electric connection, especially a hinge switch includes a pin that can be actuated form outside the device. The device further includes an actuator arranged on the pin and interacting with a switch that switches the electric connection once a switching point is exceeded. The device allows the switching point to be adjusted and readjusted simply and permanently with relatively few constructive elements. The actuator is displaced in a radial and/or an axial direction in relation to the pin by an adjusting device in such a manner that the switching point can be adjusted to a given angel position of the pin.

Abstract: A safety switch for monitoring movable protection devices comprises a switching member with at least one reading head, and an actuating element which can be moved in relation the reading head. The actuating element engages in contactless interaction with the reading head. The actuating element has an inductive reactance for interaction with the reading head.

Abstract: A manually operated angle pickup or detector has a rotatably mounted and manually movable transmitter element, a sensor that scans the transmitter element and a detent coupling that operates magnetically and in a contactless manner to maintain the transmitter element in defined angular positions which can change from one to another by manual operation. The detent coupling includes at least one permanent magnet with poles disposed in the axial direction and two toothed disks provided on the side of at least one pole of the permanent magnet. The two toothed disks are radially spaced and have a corresponding number of teeth. The disks are interconnected by the magnetic flux and are of a material with good conductivity.

Abstract: A safety switch includes a switch housing having at least one key channel into which a key can be introduced from the exterior. A plate cam projects into key channel and rotates when the key is introduced. A mechanism in secures the plate cam when the key has been fully introduced or completely removed.