Abstract: A quick-action tensioning device (1) for cable control switches comprises a holding element (2), to which a cable (3) can be fastened in a clamping manner, and a housing (8), which is connected with the holding element (2). According to the invention, devices (9, 10) for a precise adjusting are provided between the housing (8) and the holding element (2). In particular, a nut (10) can be used for the precise adjusting, so that the cable tension can be continuously adjusted, in which case a rough adjustment as well as a precision adjustment can be carried out.

Abstract: A manually operable, electrical operating member having two key buttons for the respective switching-on and switching-off of the current, which key buttons are arranged on mutually opposite sides and can be operated in several steps. A common, mechanically operable switch is provided with which the key buttons are each in an operative connection.

Abstract: A quick-action tensioning device (1) for cable control switches comprises a holding element (2), to which a cable (3) can be fastened in a clamping manner, and a housing (8), which is connected with the holding element (2). According to the invention, devices (9, 10) for a precise adjusting are provided between the housing (8) and the holding element (2). In particular, a nut (10) can be used for the precise adjusting, so that the cable tension can be continuously adjusted, in which case a rough adjustment as well as a precision adjustment can be carried out.

Abstract: A manually operable, electrical operating member having two key buttons for the respective switching-on and switching-off of the current, which key buttons are arranged on mutually opposite sides and can be operated in several steps. A common, mechanically operable switch is provided with which the key buttons are each in an operative connection.

Abstract: A switch hinge is described having a first hinge wing, which accommodates a switch operable by a lever, having a second hinge wing and having a shaft which, in the operative position, is non-rotatably connected with the second hinge wing. The shaft, on its circumference, has a switch groove which extends in the direction of the shaft axis and into which an operating pin connected with the lever dips in a predetermined swivelling position between the two hinge wings. In a preassembled condition, in which the operating pin rests in the switch groove, the shaft is secured by a lock against rotation with respect to the first hinge wing, and the second hinge wing is freely swivellably with respect to the shaft. A screw screwed into the face-side end of the first hinge wing axially displaces the shaft by a predetermined extent out of the preassembled position into the operative position.

Abstract: A switch hinge is described having a first hinge wing, which accommodates a switch operable by a lever, having a second hinge wing and having a shaft which, in the operative position, is non-rotatably connected with the second hinge wing. The shaft, on its circumference, has a switch groove which extends in the direction of the shaft axis and into which an operating pin connected with the lever dips in a predetermined swivelling position between the two hinge wings. In a preassembled condition, in which the operating pin rests in the switch groove, the shaft is secured by a lock against rotation with respect to the first hinge wing, and the second hinge wing is freely swivellably with respect to the shaft. A screw screwed into the face-side end of the first hinge wing axially displaces the shaft by a predetermined extent out of the preassembled position into the operative position.

Abstract: A switch device, includes a casing having an inlet opening for introduction of a conductive cable, having at least two conductors and an insulating sheath. The casing has an open end which is closeable by a lid. Received in the interior of the casing are contact members having terminals which point in the direction of the lid, for penetration through the insulating sheath of the cable and contacting the conductors. A pressure pad is secured interiorly on the lid in an area of contact-making between the contact members and the conductors, for exerting a pressure onto the cable, whereby the pressure pad so projects into the interior of the casing as to firmly press the cable onto the contact members via the connected terminals, when the lid is closed.

Abstract: A safety switch including a spring-loaded tappet axially displaceably disposed in a switch cover; a switching bridge on the tappet; and an actuator above the tappet. An essentially U-shaped element has a center web and a first and second leg. The element is swivellably disposed in the cover in the area of the center web and the first leg of the element engages the tappet. The second leg is situated above the tappet such that when the actuator has moved in, the second leg reaches behind and engages the actuator in a switch-on position and permits a complete pulling-out of the actuator from the cover only in a switch-off position.

Abstract: A safety switch includes a housing and a switching mechanism comprised of a controller drum which has opposite end faces and is rotatably mounted in the housing, and an actuator which is insertable from outside into the housing for rotating the controller drum about a predetermined angle and thereby actuating a switch plunger. Incorporated in the safety switch is a safety mechanism which includes at least one contact structure attached in fixed rotative engagement to one of the end faces of the controller drum and having an outer edge, and a plunger bearing on the outer edge of the contact structure.

Abstract: A safety switch includes a switch housing which accommodates a switch as well as mechanical and electrical and electronic components, and a head portion securable to an end face of the switch housing in several predetermined angular positions and accommodating a mechanical switching element e.g. a switching wheel which is operated by an actuator. A rigid positioning element is detachably secured to the switch housing and formed with a safety member, whereby the positioning element is adjustable between a locked position in which the safety member is positively engaged in the head portion and an idle position in which the safety member is disengaged from the head portion for allowing a rotation and re-positioning of the head portion relative to the switch housing.

Abstract: A radius actuator including an actuating member having a shaft which projects into the holder and carries the ball on that end. The ball is fixedly clamped into a clamping part which consists of two halves connected with one another by screws and which is situated in a hollow chamber of the holder. A spring is between the clamping part and the holder in the hollow chamber. The holder is provided with two mounting bores which lead into the hollow chamber and are alignable with the screws of the clamping part.

Abstract: A safety switch includes a spring-biased locking pin which is displaceable axially inside a switch housing by a lifting magnet against the biasing force of the spring to switch a switching element between a blocking position and a release position, and a retention magnet which holds the locking pin in the release position when the lifting magnet is de-energized.

Abstract: A radius actuator for operating a safety switch, includes a holder and a spring-biased operating key which is secured in the holder by a carrier member and moveable between a slanted initiation position and a switch-actuating position, with the operating key being tiltable relative to the carrier member about a first pivot axis and lockable in place. A base plate is attached to the key-distant end of the carrier member such that the carrier member is tiltable about a second pivot axis and lockable in place, whereby the second pivot axis is in offset disposition to the first pivot axis by 90.degree., thereby allowing a slanted positioning of the operating key over a wide range. The base plate is displaceable within the holder in direction of the longitudinal axis of the carrier member and tiltable relative thereto in opposition to the force exerted on the base plate by a spring which is received in the holder.

Abstract: A radius actuator for a safety switch includes a mounting, a spring-loaded operating key secured in the mounting and moveable between a slanted initiation position and a switch-actuating position. The operating key has a head assembly which is spring-mounted in a slider that is received in a recess of a locking wheel for to and fro movement. The locking wheel is rotatably supported in a mounting and has a cam so that a turning of the locking wheel causes the cam to move the slider in a direction of movement. The head assembly is supported outside the slide for tilting about a pivot axis in order to effect a slanted position of the operating key relative to the safety switch when turning the locking wheel.

Abstract: A housing structure, includes a compartment body formed by interconnecting side walls and a door, and hook-shaped hinges for articulating the door to one side wall. The side wall is formed with a groove which extends longitudinally from top to bottom. Each hook-shaped hinge exhibits an angled section and extends through a slot of the door for engagement in the groove, with the angled section of the hinge at least partially overlapping a marginal area adjoining an outer edge of the door.

Abstract: A safety switch with a contact-carrying spring-loaded plunger includes in a housing portion with two access openings for selective insertion by an actuator. Accommodated in the housing portion is a switching and locking mechanism with a switch wheel that is rotatably mounted on an axle. Positioned in a cutout on each side of the switch wheel is a locking member which is displaceably disposed against the force of a spring substantially radially to the axle. The locking member has two ramp surfaces respectively associated to the access openings and adapted for cooperation with the actuator for shift in radial direction. Each locking member has a locking zone in form of a keyed bore in the passage area of the axle to cooperate with a keyed portion of the axle to securely fix the axle in place.

Abstract: An electrical switch of a type having a detector probe with a sensor and a mounting, includes a housing having a bottom and a top which are detachably connected together solely by complementary locking elements. The mounting of the detector probe is rotatably supported in the top via a trunnion and secured by a fixture. Snapped onto the top is a cover which secures, partly via the fixture, the locking elements in their locking position and also secures the fixture in place, to thereby attain an assembly of the components of the switch without resorting to the use of screw fasteners.

Abstract: A safety switch assembly as part of a protective screen by which a motor-driven machine is enclosed includes a locking unit for allowing opening of the protective screen for access to the machine only after all moving motor parts are at a standstill, and a plunger which actuates an electric switch for cutting the electric supply to the machine. The plunger is linked to a control member which is moved by the plunger in response to a key insertable into a housing by which the safety switch assembly is fully enclosed. The locking unit includes a locking lever which is actuated by an electromagnetically actuatable locking mechanism to engage and immobilize the control member with the electric switch being actuated by the control member.

Abstract: A safety switch includes a housing having at least one opening and supporting a spring-biased tappet which is movable between two end positions by a switching mechanism including a switch wheel received in the housing. The switch wheel includes at each side a pair of separate but operatively interconnected resiliently mounted locking members. Each locking member carries a locking pin which is engageable in a bore of the surrounding housing. An actuator is insertable through the opening to act on ramp surfaces of the locking member, with the ramp surfaces being spaced from the grooves in the switch wheel. Thus, only a very particular actuator of complex configuration is suitable to effect the unlatching and subsequently the turning of the switch wheel for movement of the tappet from the initial position to a switching position.

Abstract: A terminal box includes a base and a cover detachably securable to the base. The cover is provided with a stepped bore in each corner area thereof, with a spring-loaded locking bolt being insertable therein and slideable in axial direction in opposition to the spring action for securing the cover to the base. Each locking bolt has one end provided with a blade-like expansion which is created through flattening this respective end of the locking bolt. In the area facing the base, the cover is provided with radial slots which are in alignment with radial slots of the base and suitably dimensioned to receive the blade of the locking bolts. When placing the cover upon the base, each locking bolt is pressed down through the bore and radial slots in the base and turned to allow the blade of each locking bolt to bear upon an abutment of the base for securement of the cover to the base.