Abstract: An electromagnet device has a spool having a guard portion at at least one end thereof, a coil wound around a body portion of the spool, and a coil terminal press-fitted in the guard portion. A lead wire of the coil is tied up to a tying-up portion of the coil terminal projected from the guard portion. The tying-up portion is folded toward the guard portion of the spool after the lead wire of the coil is tied up to the tying-up portion of the coil terminal extending in a direction receding from the spool.

Abstract: An actuator for a contactor comprises an electromagnet having a closing coil, a holding coil, fixed cores wound with the closing coil and the holding coil respectively, a movable core provided on one side of the fixed cores, and a yoke. A main contact movable member operates to perform closing or interrupting by attraction or release of the movable core with respect to the fixed core. The actuator has a trip spring, energy-stored during the closing, that performs the interrupting upon stopping energization to the holding coil and thereby releasing the stored-energy. The actuator has an auxiliary contact operating with the operation of the movable core and performing energization switching with respect to the closing coil and the holding coil. The trip spring is provided on one side of the electromagnet in a horizontal direction while the auxiliary contact is provided on the other side.

Abstract: The present invention provides an electromagnet device including: an electromagnet block having a spool around which a coil is wound and an iron core inserted in a central hole of the spool; a yoke connected to an end portion of the iron core via a permanent magnet; a movable iron piece pivotably supported on a pivoting shaft center located at an end face edge portion of the yoke, the movable iron piece is adapted to pivot on a basis of magnetization and demagnetization of the electromagnet block, and a protrusion having a linear edge portion which extends in parallel to the pivoting shaft center and the protrusion protrudes from at least either the movable iron piece or the iron core, the protrusion protrudes in a facing direction in which the movable iron piece and the iron core face each other.

Abstract: An electromagnetic relay including an electromagnet block having a rod-shaped iron core, a coil wound around the rod-shaped iron core, and a spool interposed between the coil and iron core. A yoke having one end section extends to a section at a side of a magnet pole section of the iron core. An end section of the yoke is arranged so that the magnet pole section has a gap on a base side. A moving iron is pivotably supported by an elastic support of a hinge spring. The electromagnet block is magnetized wherein a section drawn in the moving iron is drawn to the magnet pole section and pivoted to drive a contact switching unit. The hinge spring includes an elastic contacting portion extending toward an opposite side to the elastic support. The moving iron is integrated with a card member that comes in contact with the elastic contacting portion.

Abstract: An electromagnetic relay including a contact switching unit having a pair of contacts. An electromagnet block drives the contact switching unit to open and close the contacts. An arc-extinguishing member includes a connection member and permanent magnets. The connection member is formed by connecting, via a middle part, opposing walls arranged in a direction perpendicular to the touch/separation direction of the contacts. Permanent magnets are disposed on opposing sections of the opposing walls.

Abstract: An electromagnetic relay including a contact switching unit formed by arranging at least two contact groups, in parallel with each other and perpendicular to the touch/separation direction of the contacts, each of the contact group includes a pair of contacts that can touch and separate; an electromagnet block that drives the contact switching unit to open and close the contacts; and an arc-extinguishing member comprising a connection member made from a magnetic material and formed by a connection of protrusions that respectively protrude from both sides of a middle part in the direction of the parallel arrangement of the contact groups and between the contact groups, and also comprising permanent magnets respectively disposed at least on the opposing positions of the protrusions located on both sides of the middle part.

Abstract: The present invention provides an electromagnet device which can obtain a desirable attraction force (retention force) between an iron core and a movable iron piece, a method of assembling the electromagnet device and an electromagnetic relay using the electromagnet device, the electromagnet device including an electromagnet block having the iron core being wound by a coil and an auxiliary yoke fixed to one end portion of the iron core, a yoke connected to the one end portion of the iron core via a permanent magnet, the movable iron piece pivotably supported on a pivoting shaft center (serving as a fulcrum) located in an end face edge portion of the yoke so that the movable iron piece pivots on a basis of magnetization and demagnetization of the electromagnet block, where the permanent magnet is located on an extension line of an axial center of the iron core and is interposed between the auxiliary yoke and the yoke.

Abstract: An electromagnetic relay has a fixed touch piece having a fixed contact; a movable touch piece, having a movable contact contactably and separably opposed to the fixed contact, and configured to elastically deform, an electromagnet, an intermediate member that rotates based on magnetization and demagnetization of the electromagnet and elastically deforms the movable touch piece, and an energization unit that energizes the movable touch piece to the fixed contact piece side via the intermediate member.

Abstract: The invention relates to a magnetic actuating device containing a reference element and an adjusting element which is movably disposed between first and second end positions with respect to the reference element. The reference and/or adjusting elements contain a magnetizable material. A drive coil is provided for generating a magnetic field that moves the adjusting element from the first to the second end position. A mechanical clamping device is provided for producing mechanical forces that move the adjusting element from the second to the first end position. A fixing device is provided with a permanent magnet for generating a holding force fixing the adjusting element in the second end position with respect to the reference element. The fixing device contains a fixing unit separated from the adjusting element and provided with the permanent magnet.

Abstract: A solenoid actuator assembled from a minimum number of parts. The solenoid actuator includes a coil bobbin carrying an excitation coil, a core extending through the coil bobbin, and an armature having an actuator leg and an angled anchor leg. The core has a first pole end and a second pole end respectively at its opposite ends. A hinge support is provided to pivotally support the armature to the core, and is formed as an integral part of the coil bobbin and is disposed at one axial end of the core to place the anchor leg in close relation to the first pole end, and at the same time to place a portion of the actuator leg in close relation to the second pole end. The hinge support is configured to make the anchor leg in direct supporting contact with the first pole end.

Abstract: A pivoting device such as a MEMS mirror provides improved coupling between a permanent magnet on the device and an adjacent electrical coil that may provide a drive force or position sensing. The improved coupling is obtained by forming a cavity in the coil structure. The cavity receives the permanent magnet such that the spacing between the magnet and the electrical windings or coil is at a minimum.

Abstract: A circuit breaker system has been provided for the controlled interruption of at least one circuit, with a mechanical breaker element and an adjustment device coupled to the breaker element, so that the mechanical breaker element can be placed in at least a first, second, and third position in order to selectively break or let pass neighboring circuits in the first, second, or third position. The breaker element is rotatably secured in a fastening device, connected with one foot. The interruption conditions are provided by a magnetic coil, which exerts power by way of a magnetic field on a permanent magnet, which is secured to the breaker element. In the simplest case the circuit breaker system has three conditions at its disposal, by which one of two circuits can be broken. When the coil is without power, one circuit is broken. The other circuit is broken by reversing the circuit direction.

Abstract: An electromagnetic relay has an iron core, an armature, a coil wound around the iron core, a yoke, a hinge spring, and a joining structure. The yoke is fastened rigidly to the iron core and has an engaging hole and a fitting portion. The hinge spring is used to support the armature rotatably on the yoke, and the joining structure is used to join the hinge spring to the yoke in the electromagnetic relay. The hinge spring has a tongue and a dish-shaped portion, and the yoke has an engaging hole and a fitting portion for engaging with the tongue and the dish-shaped portion. The hinge spring is joined to the yoke by inserting and fitting the hinge spring into the yoke. This structure serves to simplify the process of assembling the hinge spring to the yoke and drastically reduce the number of assembling steps required.

Abstract: A relay of the present invention comprises a coil plate 30 having at least one layer of spiral flat coil 36a-36d formed around each of a pair of holes 32, 33 and fixed contacts 23a, 24a and movable contacts which are opposed to each other contactably and separably via the holes 32, 33 in the coil plate 30. The fixed contacts 23a, 24a are provided on one side of each of a pair of flat core blocks 21, 22 juxtaposed and insulated from one another. The movable contacts are provided on one movable contactor 43 which is supported so as to be drivable along a direction of plate thickness via at least one hinge portion 42 extending from a support member 44 for a movable contact plate 40.

Abstract: An electromagnetically actuated valve is disclosed. The valve includes an upper electromagnetic element and a lower electromagnetic element in a mirrored and facing relationship to each other. The electromagnetic elements define a central channel that surrounds a vertical axis. The valve further includes an armature element that is disposed intermediate the upper and lower electromagnets. The armature element is pivotally mounted to an armature shaft. The armature shaft is perpendicular to the vertical axis. The valve further includes a coil disposed within the central channel of each of the electromagnetic elements.

Abstract: An improved torque motor includes a supporting body (3) having a U-shaped cross-section and formed of a magnetizable material, includes at least two magnet structures (7, 8) adapted to be mounted on the body, includes first polepieces (10-13) mounted on the magnet structures, and includes an armature (5) mounted for movement in working air gaps (16, 17) between the first polepieces. Permanent magnets (10, 11) are mounted on the first polepieces. A second polepiece is spaced from the armature by the presence of a non-working air gap (21). At least one control coil (20) surrounding the second pole between the magnet structures (7, 8).

Abstract: Disclosed is an electromagnetic relay whose armature assembly is protected against jarring impacts. The armature assembly is tiltably supported in a recess stamped out in an end portion of the magnetic yoke of the relay. Lateral inner walls of the recess are formed at their free ends with shoulders for engaging a flat biasing spring of the armature assembly. At least one lateral portion of the magnetic yoke delimiting the recess is formed with a constricted region, for example with a cutout in a corner between an inner wall and the bottom wall of the recess. The constriction permits the bending of the lateral projection into an open condition in which the corresponding shoulder is out of the way during the insertion of the armature assembly into the recess. Upon the insertion, the lateral projection is bent toward the armature until the corresponding shoulder overlaps the armature edge.

Abstract: A relay having a coil including a core also has either one or two angled armatures. Each of two armatures has a second leg extending approximately parallel to the axis of the coil as well as an extension upon which a restoring spring acts. Each armature has a contact spring which is connected thereto. Due to the displacement of the bearing location the end of the second armature leg, increased friction at the contact locations arises as well as reduction in the welding tendency of the contacts. Reduction of the effective spring force of the restoring spring during armature attraction also arises due to the seating of the armature so that reliable operation is provided without increased electromagnetic excitation.

Abstract: An electromagnetic relay comprises an elongated coil bobbin having an axially extending bore and carrying therearound an excitation coil, a generally U-shaped yoke with first and second yoke members, and a generally U-shaped armature with short and long legs connected by a web. The yoke and the armature are magnetically coupled together partly within the axial bore of the coil bobbin to form a magnetic circuit with the excitation coil such that the armature is movable between a set position of closing a relay contact and a reset position of opening the relay contact. The first yoke member extends into the axial bore to define at its free end a first pole end while the second yoke member extending outwardly of the excitation coil to define a second pole end. The short armature leg extends into the bore in an overlying relation with the first pole end, while the long armature leg extends outwardly of the coil in adjacent relation to the second pole end.

Abstract: A relay includes a coil member having an axial cavity within which is an elongated rigid armature interacting with at least one pole plate in contacting fashion. The armature is positioned in the coil member by a spring frame which is prestressed to the quiescent position. The spring frame has two cross legs approximately parallel to the armature plane and two long legs extending laterally of the armature and lying in planes perpendicular to the armature plane. A spring tongue extends from one of the cross legs and to between the long legs, the free end of the spring tongue being connected to the armature. The spring frame produces a stable holding for the armature in the coil member and provides operational adjustment from outside the relay.

Abstract: In an armature of a hinge type relay having a movable contact elastically at one side, a rocking cardinal piece which is bendingly formed to the lower direction is provided at another side of the armature. A fulcrum piece which rockingly supports the rocking cardinal piece is provided at the lower portion of the upper bent portion of the yoke which supports the armature. The armature rocks due to the energization of the electromagnet, premitting the rocking cardinal piece to be a base point and the movable contact and the fixed contact separate or contact each other causing a relative wiping action. Foreign matter such as oxides, dusts and the like which generate at the contact points, and which cause a bad contact, are thereby removed, keeping the contacts continually clean.

Abstract: This hinge type relay is provided with an elastically movable contact point at one side of an armature, while at another side is provided with a non-magnetic supporting piece formed bendingly downward, and further a fulcrum which supports the above non-magnetic supporting piece rockably at the lower portion of the upper bending portion of the yoke which supports the above armature is provided. By this, when the fixed contact point and the movable contact point of the hinge type relay contact with or separate from each other, the both contact point wipe and the generated magnetic flux of the electro magnet acts to the armature effectively.

Abstract: Disclosed is a print head of a dot matrix printer in which an electromagnet assembly and a print wire assembly are mounted by means of a mounting assembly. The print wire assembly includes armature members radially arranged in a support base member which is provided at the rear end of a nose member for movably guiding print wires. These armature members face their corresponding electromagnetic cores of the electromagnet assembly with gaps therebetween, and are held in a rest position on the rear side by a backup member against the urging force of springs. In a mounted state, the backup member is positioned by a cap member of the mounting assembly. The posiiton of the backup member can be adjusted at the time of mounting, so that the gaps between the armature members and their corresponding electromagnetic cores are adjustable.

Abstract: An apparatus for rotary manual input utilizes an electromagnetic brake and control circuit to provide tactile feedback to the operator similar to that of a mechanical detent. A shaft connects a handwheel to the brake and to an incremental encoder. The torque generated by the brake when energized is small enough to allow easy rotation of the handwheel. The control circuit keeps the brake normally energized. As the handwheel is turned, the control circuit monitors the encoder position signals and momentarily de-energizes the brake for each incremental movement. The momentary loss of resistance is felt by the operator to verify the incremental movement. The encoder position signals are also made available to an external device, such as for example a Numerical Controller, to implement the commanded movement.

Abstract: A resiliently flexible strip device mounts the armature of an electrically released brake for movement toward and away from the pole faces of the field shell, the armature either moving with pivotal motion or with linear motion. The resiliently flexible strip device may take the form of one or more leaf springs or may be one or more tongues molded integrally with the flange of a bobbin which forms part of the coil of the brake. A piece of flexible friction material is bonded to a curved pad on the outer face of the armature and automatically takes on the curved shape of the pad.

Abstract: An electromagnetic activation device for valves using a hinged armature magnet. The hinged armature itself is attached to the free end of a leaf spring fastened on one end on the magnetic body and extends into the magnetic body. This leaves at least two guide air gaps (S.sub.1, S.sub.2) with specified measurements. In this manner an advantageous magnetic efficiency with only minimal friction losses is achieved and the electromagnetic activation device can be used advantageously with anti-blocking control devices in motor vehicle brake system.

Abstract: The electro-magnetic valve includes a hydraulic pilot control consisting of an inlet and outlet with a concentric valve seat, sealable by a flexable diaphragm. The inlet and outlet are both arranged on one side of the diaphragm and a hydraulic pressure is arranged on the other side of the diaphragm. A filling aperture from the inlet to the pressure chamber and a central pressure relief aperture from the pressure chamber to the outlet are provided, the central pressure relief aperture being connected to a bypass in the valve body. An electro-magnetic means for opening the pressure relief aperture is also included.

Abstract: A wire printer including a group of substantially straight and parallel printing wires or needles guided at their front ends for longitudinal movement towards and away from a printing station. Each of the printing wires is at its rear end connected to one end of an electromagnet armature the other end of which is supported by a flat spring. The armature cooperates with an electromagnet core provided with a winding. The core as well as the armature consist of strips of magnetic material. The core strips as well as the flat springs are mounted on at least one common rod engaging holes in the rear ends of said core strips and flat springs. The front end of each of the flat springs lies clear of the armature strip and serves, in combination with a stationary rest, to provide a force tending to move the front end of the armature strip away from the core strip.

Abstract: Hinged armature magnet for matrix printer head with a hinged armature (24), which near its one end is fixed one end of the magnet yoke (12) by means of a mounting part (48) so as to be able to swing out against spring force, wherein the hinged armature (24) and the mounting part (48) rest in common against a substantially cylindrical pin (80) which with its cylindrical axis is arranged substantially parallel to the pivoting axis of the hinged armature (24) near the corner edge of the magnet yoke (12). The pin (80) with a recess (84) can be supported in a cutout (82) in the magnet yoke (12). By the rolling motion of the hinged armature (24) on the cylindrical surface of the pin (80) during the starting motion of the hinged armature, the lever arm enlarges between the momentary position of the pivoting axis of the hinged armature and the supporting tongue (76) of the mounting part (48) transmitting the spring force, in which way a progressive spring action occurs.

Abstract: A wire printer including a group of substantially straight and parallel printing wires or needles guided at their front end for longitudinal movement towards and away from a printing station. Each of the printing wires is at its rear end connected to one end of an electromagnet armature the other end of which is supported by a flat spring. The armature cooperates with an electromagnet core provided with a winding. The core as well as the armature consist of strips of magnetic material. The core strips as well as the flat springs are mounted on at least one common rod engaging holes in the rear ends of said core strips and flat springs. The front end of each of the flat springs lies clear of the armature strip and serves, in combination with a stationary rest, to provide a force tending to move the front end of the armature strip away from the core strip.

Abstract: The invention relates to an electromagnetic contact switch relay assembly of the type having a magnetic coil. A yoke is attached to the coil. The yoke includes a flat plate portion with a knife edge at one end thereof. An insulated contact carrier is attached to the plate portion. An L-shaped armature has first and second legs with the corner therebetween having the inside thereof engaging the knife edge. The first armature leg has an inoperative position on the plate while at rest and an operative position while forming an acute angle with respect to the plate. The carrier has an end wall with resilient bifurcated portions engaging the outside of the armature corner and a rigid stop member therebetween for limiting the movement of the armature. A slide member for actuating contact switches is slidably mounted in the carrier in juxtaposition to the first armature leg for actuation in response to movement by the first armature leg.

Abstract: An improved spring leaf construction for relays includes a cantilever blade fabricated to cooperate with a tapered lead post. The end of the blade which is attached to the post includes a pair of parallel slits defining a bridging portion. The bridging portion is friction fitted over the post and tightly engages that post. Preferably, a tapered post construction is utilized in combination with the improved cantilever blade.