Abstract: An electrical switch for electrical tools having an electric motor operated by a DC voltage. The switch comprises a contact system including a stationary contact and a switching contact, an operating element which acts on the switching contact to initiate a process for switching the contact system between an on-position and an off-position and a shield that quenches an arc that occurs between the stationary contact and the switching contact during the switching process. A movable slide is operatively connected to the operating element and has the switching contact arranged thereon. During the process of switching the switching contact from the on-position to the off-position, the shield is moved to an area located between the stationary contact and the switching contact. During the process of switching the switching contact from the off-position to the on-position, the shield is moved from the area located between the stationary contact and the switching contact.

Abstract: The invention relates to an electrical switch with a housing (2). In the housing (2) there is a contact system (3), to which a switching effect can be applied by means of an actuating member (6) which is arranged in an opening (5) on the housing (2) and partly protrudes out of the housing (2). The part of the actuating member (6) protruding out of the housing (2) as well as the opening (5) in the housing (2) is covered by a cap (9) allowing the movement of the actuating member (6). The cap (9) has a cover of a hard material and a sleeve-like part (11) of a flexible material, designed in the manner of a bellows. The cover, designed essentially in the manner of a planar surface (10), is arranged on the part of the actuating member (6) protruding out of the opening (5) in such a way that the actuating member (6) can be moved via a side of the cover facing the user.

Abstract: An electrical switch for the speed setting of an electric motor in an electrical appliance includes a movable actuator member and a blocking structure. The actuator member is movable from an initial position into a plurality of actuating positions. The blocking means can be switched over between a blocking state for blocking the movement of the actuating member and a release state for releasing the movement of the actuating member. A first blocking means acts on the actuating member in the initial position. A second blocking means acts on the actuating member in the first actuating position. An actuating element has three switching positions for switching over the two blocking means. The first blocking means is in the blocking state in the first switching position. The first blocking means is in the release state and the second blocking means is in the blocking state in the second switching position. Both blocking means are in the release state in the third switching position.

Abstract: An electric appliance unit includes an appliance and a plug-in battery pack. The appliance has an appliance housing carrying an electric switch accommodated in a switch housing and including first electric contacts. The battery pack includes second electric contacts for engaging the first electric contacts. A first guiding arrangement guides and preliminarily centers the battery pack relative to the switch housing along a first insertion path extending to a first position to effect a coarse alignment of the first and second electric contacts upon reaching the first position. The first guiding arrangement includes a first guide component carried by the battery pack and cooperating, along the first insertion path, with a second guide component in the appliance housing.

Abstract: An electrical switch (4), in particular for electric hand tools (1), such as electric drills, hammer drills, electric screwdrivers or the like, has an actuating member (5) that can be moved from an initial position into an operating position. In the operating position, the actuation member (5) acts, for example, to switch a contact system or to adjust a potentiometer. In addition, the switch (4) has a movable actuating element (13) which, when it is moved, acts to actuate a first device the actuating element (13) is arranged in the immediate vicinity of the actuating member (5). Furthermore, in addition, a further, second device can be actuated by means of the actuating element (13).

Abstract: An electrical switch which can be used in particular in power tools, such as drilling machines, angle grinders or the like, is disclosed. The switch has an actuator, at least one fixed contact, and at least one switching contact. The switching contact is arranged on a slide which is moveable between two positions by means of the actuator. The switching contact is at a distance from the fixed contact in the one position and bears against the fixed contact in the other position. An elastic device interacts with the slide, so that the slide can be changed over between the two positions with a type of snap movement. The elastic device may be a first spring, arranged on the slide, like a pressure-point spring.

Abstract: A housing part (6) of plastic may be used for an electronic key (1) of a locking system in a motor vehicle. The housing part (6) has an actuating member (3, 4) for an electrical switch (10), the actuating member (3, 4) being designed in a manner of a surface (27, 27′) which can be elastically deformed for the actuation and if appropriate extends essentially in the surface (26) of the housing part (6). The actuating member (3, 4) acts in an actuating manner on a plunger (12) or the like of the electrical switch (10). The actuating member (3, 4) is arranged on a rigid supporting element (13) which is essentially undeformable when the actuating member (3, 4) is actuated. Both the actuating member (3, 4) and the supporting element (13) are prefabricated as half-parts. The half-parts are encapsulated with the plastic of the housing part (6) in the production of the housing part (6) in such a way that the supporting element (13) is facing the electrical switch (10).

Abstract: The invention relates to an electric switch (1) with a contact system (9) which consists of at least one fixed contact (10, 11) and of a movable contact tongue (12). A movable actuating member (5) is operatively connected to the contact tongue (12) for changing over the contact system (9). The contact tongue (12) is arranged on a bearing (18) designed in the manner of a knife-edge bearing. The switch point of the contact system (9) is adjustable by the shift of part of the contact system (9) in the direction of movement (20, 20′) of the actuating member (5), in that the bearing (18) and/or the fixed contact (10, 11) and/or the contact tongue (12) is capable of being set in the direction of movement (20, 20′) of the actuating member (5). In order to adjust the switch point of the contact system (9), part of the actuating member (5) may also be capable of being set in the direction of movement (20, 20′) of said actuating member (5).

Abstract: An electronic key for use with a vehicle locking system controls at least one of a door locking feature and an ignition lock feature on the vehicle. The electronic key has a transmitter/receiver for transmitting at least one coded operating signal generated by the electronic key and transmitted from the electronic key to the locking system to activate at least one function of the locking system upon positive evaluation of the transmitted operating signal by the locking system. Actuating members are provided on the key and operated by the user to cause the transmitter/receiver to transmit the coded operating signal, and the activating elements are also adapted for the user to enter an individual code.

Abstract: An electronic key for actuating a lock, in particular for use in locking systems in automobiles, is described. The housing of the electronic key has the shape of a thin wedge, the narrow end of the wedge being designed for insertion into the lock. The parts active for the actuation of the lock are also accommodated here. Moreover, the housing has a receptacle for a key bit for a mechanical lock.

Abstract: A switch arrangement, in particular for domestic appliances, such as washing machines, dishwashers or the like has a housing (2) having at least one switching element which is located in the housing interior. At least one operating member is arranged on the housing, in order to act on the switching element in the sense of operating it. Furthermore, the housing has a supporting part, which has a holder for the operating member. The holder in the supporting part has an opening on the side facing the housing interior, which opening is associated with the switching element. A sealing element which is elastic in the movement direction of the operating member is fitted on the opening in the supporting part, between the switching element and the operating member, with the operating member acting on the switching element via the elastic sealing element.

Abstract: An electrical switch comprising: one of a housing and a housing part; a contact system attached to one of the housing and the housing part; an operating member for switching the contact system and arranged so that the operating member can move on one of the housing and the housing part; and at least one damping element, the damping element serving as a sound dampening bumper between the operating member and one of the housing and the housing part, and the damping element is located on at least one of the housing, the housing part and the operating member, and wherein the damping element is of a single unitary piece with at least one of the housing, the housing part and the operating member.

Abstract: An electric switch having a contact system includes a contact with a contact body (7) and a contact surface (10). The contact is arranged in a recess (25) on a contact carrier (8) in such a way that the contact surface is exposed on the contact carrier (8) and the contact body (7) projects at least on one side (23) of the contact carrier (8). The contact is fastened on the contact carrier (8) by a region (27, 27') of the contact body that is adjacent an edge (28) of the recess (25). The region (27, 27') of the contact body is embossed with the side (23) of the contact carrier.

Abstract: An electrical switch includes a housing having first and second input connections for electrical connection to a voltage source and the housing further has first and second output connections for electrical connection to an electrical device. The second input connection has an electrical connecting part for connection to the second output connection. The electrical switch also has an operating element which can be moved manually and at least one contact system which includes a fixed contact and a contact rocker. The contact rocker has first and second lever arms and a rotating bearing. The first lever arm is in communication with the fixed contact. The fixed contact is directly connected to the first input connection. The operating element, during its movement, acts upon the second lever arm in such a way that the first lever arm can be placed against the fixed contact in order to close an electrical connection of the contact system.

Abstract: An electric switch (1), in particular for electric hand tools having an electric motor operated by means of direct current. The switch (1) possesses a contact system (9) consisting of a fixed contact (10) and of a switching contact (11), an actuating member (3) for triggering a switching operation between an "off" and an "on" position of the contact system (9) acting on the switching contact (11). The contact system (9) is assigned means (18), consisting of a shield (19), for extinguishing an arc generated between the fixed contact (10) and the switching contact (11) during the switching operation. The shield (19) can be moved together with the switching contact (11) in a coupled manner, during the operation to switch the switching contact (11) from the "on" to the "off" position the shield (19) being moved into the region located between the fixed and switching contacts (10, 11).

Abstract: According to known methods, several circuit board pieces in a three-dimensional arrangement of an electronic module are connected together electrically by the film connectors and arranged around an operator control or actuator element in the three-dimensional form. The assembly of such modules is, however, very costly because the circuit boards must all be fastened mechanically. By using film connectors with greater stiffness, circuit board pieces can be held over these directly without additional mechanical securing devices and the three-dimensional circuit board arrangement can be secured by appropriate securing devices in the three-dimensional form. A preferred application is for electronic modules with operator control and/or actuator elements where the space available is very limited, in particular for modules fitted in motor vehicles.

Abstract: A subassembly having a main housing and an electric switch arranged within the main housing. The main housing has a wall provided with an opening and the switch has a switch housing and an actuating element. The switch is arranged within the main housing such that the actuating element projects through the opening in the wall so as to extend exteriorly of the main housing and thus be actuatable from the exterior of the main housing. The wall has a first contact surface in the region of the opening and the switch housing has a second contact surface in the region of and surrounding the actuating element. The two contact surfaces are in pressure contact with each other when the switch is installed in the main housing with the actuating element of the switch projecting through the opening, thereby eliminating the need for an additional seal between the contact surfaces of the main housing and the switch housing.

Abstract: The invention relates to a workpiece, in particular a housing (6) for an electrical switch, and to a process for its production. The workpiece is composed of at least two workpiece parts (7, 8) of plastic, preferably a thermo-plastic, welded together by laser beams (11) along a joining zone (10), the two workpiece parts (7, 8) having a transmission coefficient and an absorption coefficient for the spectrum of the laser beams (11) which are different from one another, at least in subregions. The one, first workpiece part (8) is made to be at least partially transmitting for the laser beams (11) in the region from a first coupling-in zone (12), in which the laser beams (11) impinge on the first workpiece part (8), up to the joining zone (10), whereby part of the laser beams (11) can penetrate through the first workpiece part (8) and can penetrate into the second workpiece part (7) at a second coupling-in zone (13).

Abstract: The invention relates to a method for driving an electric motor (1) which is employed, in particular, in manually guided electric tools, such as drilling machines, screwing machines or the like. Variable pulses of an electric voltage are applied to the electric motor (1) in such a way that the rotor of the electric motor (1) moves at a rotational speed which can be set. In order that the rotor of the electric motor (1) moves intermittently or abruptly, at least parts of at least individual pulses are blanked by superposition of a pulse interval having a zero voltage. A circuit arrangement for a method of this type has control electronics (5) and an electronic power switch (4), such as a triac, a transistor, an IGBT or the like, which is switched by the control electronics (5) in such a way that the variable pulses can be applied to the electric motor (1) via the electronic power switch (4).

Abstract: A locking system for an automobile, comprises an operating key, an operating key receptacle and an associated operating unit. The operating key and the operating key receptacle have first means for transmitting a first coded operating signal from the operating key to the operating key receptacle. In addition, further second means are arranged in the operating key and in the operating key receptacle, for transmitting a second coded operating signal from the operating key receptacle to the operating key. The second operating signal cooperates with the first operating signal in a bidirectional communication in the manner of an alternating code, activation of the operating unit being made possible in the event of successful deciphering of the first transmitted operating signal.