Abstract: A rotating electric machine according to the embodiments includes a rotating-electric-machine unit, a rotation detector, an Oldham coupling, and a washer. The rotating-electric-machine unit includes a shaft. The rotation detector includes a body and a rotation input pin that is rotatably provided on the body. The Oldham coupling couples the rotation input pin of the rotation detector and the shaft to each other while allowing any relative displacement in a direction intersecting an axial direction. The washer is provided on the rotating-electric-machine unit while being positioned with respect to the shaft. The washer includes an attaching portion at which the body of the rotation detector is attached to the washer.

Abstract: A high-voltage variable resistor includes an insulating-resin front case, and an insulating-resin rear case fitted to the front case. The front case further includes a circuit board having a circuit pattern including a resistive element, and a slider that is slidable on the resistive element. The rear case includes a capacitor housing for accommodating a capacitor, and a terminal guide for accommodating an external connection terminal. The capacitor housing and the terminal guides are integrally molded with the rear case.

Abstract: A high-voltage variable resistor includes a high-voltage variable-resistor substrate, which has at least a base, having at least a resistor element and at least one land electrode on the front surface thereof, and a plurality of through-holes formed at the land electrode so as to electrically connect the front and rear surfaces of the base.

Abstract: A high voltage variable resistor includes a variable resistance board, a substantially rectangular flat fixed-resistance board, and a high-voltage capacitor housed in a case such that one surface thereof is open. The fixed-resistance board is arranged such that a longer side extends from the bottom surface to the opening surface of the case.

Abstract: An electric component capable of attaining connection of two kinds of connection conductors thereto and electrically connecting an electrode arranged on a front surface of a circuit board and a terminal fitment to each other without soldering. A terminal fitment (129) is integrally formed by subjecting a metal plate to machining. The terminal fitment 19 includes a first conductor holding section 129A, a second conductor holding section 129B and a contact terminal section 129C. The contact terminal section 129C is constructed to as to exhibit elastic or resilient force sufficient to force a contact portion 129s against the contact electrode E2 while being kept arranged between the first conductor holding section 129A and the front surface of the circuit board 102.

Abstract: A switch mechanism for an electrical slide switch that has a detenting or clicking action is disclosed. The switch mechanism provides such detenting action in a mechanism that has a switch lever that moves through an arcuate path of movement and provides a uniform resistance to movement through the entire range of movement of the switch lever.

Abstract: A variable resistor is constructed to reliably seal the space between a rotor and a substrate without insert-molding the substrate into a case, and to be produced at a very low cost. This variable resistor includes a hollow square-prism shaped case which is open at the top and the bottom, a substrate which is fitted into the lower opening of the case, and on the top surface of which a collector electrode and an arcuate resistor are provided, a rotor rotatably fitted into the upper opening of the case, a slider mounted on the bottom surface of the rotor and making sliding contact with the collector electrode and the resistor, an annular packing member disposed between the rotor and the substrate for sealing the space therebetween, terminals mounted on the substrate and electrically connected to the resistor and the collector electrode, and a metallic cover.

Abstract: A variable resistor for increased assembly efficiency and decreased influence by environmental changes is disclosed. The variable resistor includes a closed end main casing, an external terminal held in the main casing and connected to the insulating substrate, a side receiver movably held in the casing, a shaft for moving the slider receiver, and a cover for closing an opening of the casing. The shaft is supported by a bearing formed on the cover to protrude from the cover and is further provided with a fall-preventive means. The terminal and substrate are both connected on the opening side of the casing.

Abstract: A focus unit of an FBT (fly back transformer) is disclosed. Particularly a focus volume slider of the focus unit is disclosed. A ceramic substrate 150 is installed within and on the bottom of a cover 130 through which an actuation knob 120 passes. A variable contact 172 of a slider 170 contacts with a resistor pattern 140 of the ceramic substrate 150, so that the voltage volume can be controlled. Since the ceramic substrate is disposed separated from an FBT case which accommodates bobbins for generating a high voltage, the insulation of the focus unit by filling and curing an insulating resin is not required, and therefore, the manufacturing process is simplified.

Abstract: A flexible element for use in a rotary position sensor or the like having the direction of electrical traces on one surface of the element altered without putting the traces into tension. The directional change is accomplished by partially splitting the flexible element and continuing an electrical trace from one side of the split back along the other side. The invention makes it possible to decrease the size for a given operational angle of mechanically variable resistors without sacrificing quality or reliability.

Abstract: A sensor is disclosed that fits in a compact package. This compact sensor is ideal for sensing rotary positions and for accommodating one or more potentiometers. The resistor track is parallel and opposed to the collector track, and the wiper is placed between the two tracks to swipe both of them in one embodiment. This allows a short package, because the tracks are opposed to each other rather than being in a line, and a narrow package, because the tracks are not placed side by side. Another advantage of the invention is that putting the resistor track on a larger radius and the collector track on a smaller radius allows the resistor track to be longer. Having a longer resistor track allows a higher resolution, yet a package containing the potentiometer will still be relatively small. Several potentiometers may be placed in the sensor to provide redundancy yet retain compactness.

Abstract: The present invention is concerned with a rotary electric component having a groove for adjustment with a screw-driver. In the rotary electric component, a rotor having a screw-driver groove and a through hole, with an electrically conductive pattern being formed on the underside thereof, is mounted rotatably on a support shaft which is inserted into the through hole.

Abstract: An operation shaft receiving-type electric component capable of reducing the number of parts required therefor and preventing generation of noise. An electric component body which includes an electric component unit varied in electric properties due to a variation in rotation angle of the operation shaft is arranged between an operation section of an operation shaft and a mechanism unit. A push-type lock and release mechanism is constituted by a guide member held stationary, both a slider member and a rotary slider each rotatably fitted on the operation shaft, a spring holder and a spring member. The guide member is provided with a plurality of primary guide grooves and secondary guide grooves, in which projections of the slide member are fitted, respectively. The rotary slider is provided with a plurality of projections, which are fitted in the main guide grooves, respectively.

Abstract: Feedback potentiometer-type servoactuator uses the ring gear of a planetary gear system to drive the wiper across a resistive arc of less than 360.degree. where the actuator has a travel of multiple turns. The ring gear is supported by spaced struts in the actuator housing.

Abstract: A rotary potentiometer device (1) has a rotary potentiometer (4) disposed within a housing (2) and a handle (7) above the housing (2) for rotating a resistive disk (6) of the rotary potentiometer (4). A latching device latches the handle (7) with the upper side of the housing (2) in predetermined rotation positions. At least one spring-loaded latching nose (16) protrudes above the upper side of the housing (2) and cooperates with latching troughs (18) in the lower side of the handle (7). No additional individual components are necessary for making the latching device. The spring-loaded configuration urges the latching nose towards a latched position defined by the latching troughs when it is deflected out of its latched position.

Abstract: A compact-size variable resistance device has a terminal for electrical connection to an external device, a resistor that slidingly contacts with a brush, and connecting parts formed of an electro-conductive resin containing a thermoplastic resin. The electro-conductive resin connecting parts readily make reliable electrical interconnection of the terminal and the resistor when the connecting parts are joined by, for example, ultrasonic bonding.

Abstract: A voltage follower is incorporated within a molded electrical connector interface of a position sensor in a way that does not detract from the dimensions or the performance of the finished sensor. The incorporation of the voltage follower into the housing of the variable resistor provides several advantages over the prior art, including: an immunity to sag; substantially reduced sensitivity to noisy contactors; and short lead length and low output impedance, both of which result in reduced interference from external source.

Abstract: The present invention provides a sliding type variable resistor in which the shaking of a knob portion is prevented, and in which the slider is able to slide smoothly. A sliding type variable resistor is provided having a structure comprising a resin substrate having a carbon film resistor printed on the surface in a straight line and lead terminals for external lines, a slider having a main body portion provided with a sliding shoe which slides in abutment against the carbon film resistor and a knob portion, and a frame body which holds the slider main body portion and the resin substrate inside and in which only the knob portion of the slider protrudes outside. A guide rail is provided in parallel to the sliding direction of the slider on the side surface of the frame body and a depressed part which is to be engaged with the above-mentioned guide rail is provided on the side surface of the slider main body portion.

Abstract: The present invention relates to an electronic illumination apparatus which may be used in audio equipment. The electronic illumination apparatus allows recognition of the position of rotational operation of a knob by the light from a built-in light emitting diode. The object of the present invention is to provide an illumination type electronic part of rotational operation which is readily adaptable to changes in specifications for the rotational operation shaft. The disclosed apparatus also is able to withstand a strong thrust force applied to the rotational operation shaft, to reduce the hitting sound emitted from the rotatable stopper of the rotational operation shaft, and also to light up the illumination means disposed on the end of the rotational operation shaft in a stable manner.

Abstract: A high-voltage variable resistor includes a terminal fitment having an increased number of edge elements while being simplified in structure and down-sized. A circuit substrate which includes a circuit pattern having a plurality of electrodes and resistor elements formed thereon is received in a substrate receiving section of an insulating casing. The insulating casing is charged with insulating resin through an opening thereof to form an insulating resin layer on a rear surface of the circuit substrate. Terminal fitments are provided each of which includes a core holding section provided with three or more edge elements biting into a periphery of a core of a lead wire inserted thereinto. The edge elements each are formed between each adjacent two of three or more slits formed at a plate-like section of the terminal fitment so as to radially extend from a center thereof.

Abstract: A high-voltage electronic component including a terminal connection structure capable of connecting a lead wire to a terminal fitment without soldering. An insulating substrate having a resistance element for a variable resistor formed on a front surface thereof and a high-voltage resistor are received in a hollow insulating casing. The insulating substrate is mounted on a rear surface thereof with a terminal fitment. The terminal fitment is formed with a press-fit channel in which a lead wire is press-fitted. Upon press fitting of the lead wire, the insulating casing is formed with an opening, through which insulating resin is charged in the insulating casing to form an insulating resin layer in which the terminal fitment and lead wire are embedded.

Abstract: A high-voltage variable resistor unit capable of simply and positively connecting, to a holder of a high-voltage fixed resistor used as a bleeder resistor, a wire-like terminal inserted into an electrically conductive rubber terminal provided on a side of a fly-back transformer. An insulating substrate which is formed thereon with a resistance pattern including a pair of electrodes respectively connected to first and second lead wires is received in a holder of a hollow shape made of insulating resin. The holder includes a holder body formed with an opening through which the insulating substrate is received. A wire-like terminal formed by being a rigid metal wire is heldly fitted in terminal fitting members provided on an outside of the holder. The terminal fitting members includes at least one terminal fitting member provided a wall of the holder facing the opening of the insulating casing and at least one terminal fitting member provided on one of side walls of the holder adjacent to the wall.

Abstract: A seesaw manipulation-type variable resistor is provided which has a linear sliding-type variable resistor unit. A U-shaped groove in a below-extended arm of a manipulation key smoothly interlink with a coupling member of a linear sliding-type variable resistor. A position restoring leaf spring is provided touching protrusions under both ends of the manipulation key, to give the manipulation key a force for restoration to its neutral position.

Abstract: A control system for a variable input device 2 having a slider 14 has a box 1 housing a trigger 3 capable of moving in translation between two positions relative to the box. One of the two positions constitutes a rest position. Springs 13 apply a resilient force to the trigger to urge it towards the rest position. A coupling element 45 couples the trigger with the slider 14. A foot lever 9 is mounted for rotation relative to the box about a first horizontal axis 17. The rotary motion of the lever is translated into translation motion of the trigger by a sliding block 31 mounted within the box so as to move in translation relative to the box. One end 37 of the sliding block comes into contact with the trigger. A translation control device 10 controls the extent of translation motion of the sliding block 31.

Abstract: A pre-set variable passive element can prevent faulty insulation between itself and a conductive board. A cylindrical member extended higher than a adjusting member is made of ceramic around the adjusting member which is rotatably fitted for adjustment of the value of resistance of the pre-set variable resistor element, the forming of the cylindrical member being integrally formed with a main part also formed in a ceramic. The cylindrical member is fitted into an opening bored in a stator board mainly of a steel plate, and the pre-set variable resistor is fitted on the stator board. The adjusting member which is contacted by a contact, by which the value of resistance of the pre-set variable resistor element is determined, and an inside periphery of the opening free from any insulating treatment is securely insulated by the cylindrical member.

Abstract: A trigger operated speed control wherein the insulating housing is a two-shot molding having metal conductors plated on one of the molding materials on various external and interior surfaces. Stationary contact elements are secured to respective plated conductors within a housing cavity, as are terminals of the FET on an external surface of the housing. A printed circuit board is secured to the housing over an open side thereof to close the housing cavity, retaining all movable parts of the control within the cavity, the board having plated through holes which receive and are soldered to plated pin projections of the housing to secure the board to the housing and complete selected conducting paths between plated conductors and printed circuit traces. A plated molded pin projection also receives a pin receptacle terminal of a separate reversing switch unit when positioned in a pocket formed in the housing.

Abstract: A potentiometer retention mechanism is provided for mounting a potentiometer on the faceplate of a hearing aid. The potentiometer includes a rotatable knob attached to a housing with the housing including a plurality of conductive leads projecting from a back surface of the housing. The mechanism includes an adapter for receiving the potentiometer. The adapter has a device for mechanically engaging the faceplate such that the adapter is secured with the faceplate. The mechanism further includes a plurality of angled leads attached to the adapter whereby the potentiometer leads press against the angled leads such that the housing is secured within the adapter.

Abstract: A linear-movement potentiometer having an operating rod 25 projecting at both ends from a substantially hermetic casing and connectable at one end 26 to a drive member, and first and second bearings 33, 34 disposed between the casing and the operating rod for supporting the operating rod for a linear sliding motion relative to the casing. A sealing arrangement is provided between the casing and both ends of the operating rod. A sliding variable resistor assembly 38 including a resistor and a contact relatively slidable with each other is disposed within the casing, and one of the resistor and the contact is operatively connected to the operating rod for establishing a relative sliding movement between the resistor and the contact. A cover 54 may be sealingly secured to the casing for covering the end of the operating rod, and the operating rod may have an air passage 28 axially extending therethrough.

Abstract: A throttle value spindle (3) is rotatably fixed to a throttle body (1). A recess is provided within the throttle body at one side of the throttle value spindle along the axial direction of the throttle valve spindle. A holder (6) is fixed to the throttle valve spindle within the recess and has brushes (7) at the opposite side of the throttle valve spindle, which rotates together with the throttle valve spindle. Resistors (12) are mounted on a ceramics circuit board (8) fixed on a housing (12). The housing engages with the recess in such a manner that the resistors contact with the brushes. When the brushes slide on the resistors corresponding to the rotation of the throttle value spindle, an electric signal is outputted continuously from the resistors.

Abstract: A miniature electronic device includes a housing attached to a substrate by a plurality of terminal leads, each of which has a first end embedded or molded into the housing near the top surface thereof, and a second end bent around a side wall of the housing to engage the bottom surface of the substrate. The bottom surface of the substrate has a plurality of metallized areas, each of which is electrically connected to a component on the upper surface of the substrate. The second end of each lead is soldered or welded to a metallized area. The connection of the leads to the metallized areas secures the housing to the substrate, with the leads also providing the structure for the electrical and mechanical connection of the substrate (and the components thereon) to a circuit board.

Abstract: A resistor substrate for a variable resistor of the enclosed type which may be employed in a throttle sensor of an automobile. The resistor substrate has a disk portion and a rectangular apron provided at a circumferential portion of the disk portion. The apron is stepped with respect to the disk portion to form a reduced thickness portion, and a plurality of projections each having an arcuate section in a widthwise direction are formed at end portions of the reduced thickness portion of the apron. A plurality of terminals are embedded at base portions thereof in the disk portion and extend along a surface of the reduced thickness portion of the apron. The terminals individually have arcuate protruded portions formed therein in accordance with a configuration of the projections of the apron, and the projections individually have lateral holes formed therein in an opposing relationship to the protruded portions of the terminals such that they extend to the protruded portions.

Abstract: A potentiometer which is adapted to be produced fully automatically includes a spring support (2) formed in one piece by injection molding of plastic material and given such configuration that it embraces such functional members as the slider spring (3), resistor plate (5), and base plate (6). The casing (1), is also molded in the same working operation. The casing (1) and spring support (2) are interconnected by a sprue lug (7) which is removed by shearing.

Abstract: A throttle sensor for an internal combustion engine includes a circuit board and a rotatable body disposed adjacent the circuit board which is connected to the throttle valve and having a pair of brushes disposed in sliding contact with the circuit board. A resistance body, including a basic resistance layer and a protective resistance layer covering a basic resistance layer are formed on the circuit board for engagement by one of the brushes, and a collecting body, including an electric conductive layer and an additional protective resistance layer covering the electric conductive layer is formed on the circuit board for engagement by the other brush. The protective resistance layers protect the basic resistance layers against undue wear and atmospheric conditions.

Abstract: A low voltage direct current motorized servoactuator having an output gear position feedback potentiometer with a ring gear received initially loosely on the potentiometer shaft and in engagement with the output gear. A collar keyed hinged to the potentiometer shaft, but axially movable thereon, permits the output gear to be positioned independently of the potentiometer for calibration without disengaging the ring gear. With the output gear in the desired position, the potentiometer shaft is rotated until the potentiometer reads the desired percentage of its full scale resistance or voltage output; and, the collar is then moved axially to a press fit with the ring gear to lock the calibration and thereafter to rotate the potentiometer shaft with rotation of the ring gear. The motor drive pinion is a worm formed of material having a minor fraction (18%) of chloro-fluorinated polymer and a lesser fraction (2%) of lubricant, balance polyimide plastic material.

Abstract: A potentiometer for attachment to objects undergoing strong vibrations, such as the engine block of an internal combustion engine has an outer housing which is secured to the object and an inner housing which is largely positioned inside the outer housing. The two housings are connected by at least one springy damping member, such as an O-ring made of rubber and, at the same time, they are largely uncoupled with respect to vibrations.

Abstract: A process for producing nonlinear resistance tracks on a supporting base uld be carried out in such a way that constant transitions are provided between the nonlinear resistance sub-ranges. For this purpose the supporting base is moved under a coating device at right angles to the longitudinal direction of the base strips provided whereby this coating device applies several strips of resistance paste onto the supporting base in the wet condition so that they are close to each other. The resistance pastes have different resistance values according to the set non-linear resistance pattern. The base strips are cut out of the supporting base at right angles to its direction of movement.

Abstract: A variable resistor including terminal leads punched out of a metal plate the end portions of which are arranged to be positioned accurately onto corresponding collector or conductor elements disposed on a base respectively by setting the metal plate at a fixed position, filler elements filling a gap extending between the collector element and the conductor elements and a gap extending between the conductor elements and which prevent an outflow of synthetic resin into the center of a housing during the process of molding the housing and a parallel gap electrode provided with a pair of parallel electrodes which are provided on an unplated surface of the end portions of the lead terminals during the process of welding the terminal leads onto the corresponding collector and the conductive elements respectively.

Abstract: It should be possible to adjust without difficulty the moment of friction curring during rotation on a variable resistor. A bolt (11) is provided for this purpose for holding a rotating part (13) axially in position with a base component (2). A tap (24) is brought into contact with a resistance track (5) rotating in the base component (2) in a radial direction to the axis of rotation (14). The bolt (11) can at the same time be used for securing the variable resistor (1) and as the electrical connection for the tap (24).

Abstract: A narrowly-adjustable resistor has a slider rotatably mounted on a resistor base, a case containing the slider and the resistor base, and terminals connecting to the slider and the resistor base, respectively. Each terminal extends through the bottom of the case to the outside, its exposed extension part including a stem and a branch or branches extends to the sides of the case to permit soldering of the terminal to an electrode on the substrate.

Abstract: In a rotary electric device such as a trimmer capacitor or a variable resistor comprising a rotor contained in a case which is provided with an opening for receiving a screwdriver for rotating the rotor from the outside with a clearance being defined between an edge defining the opening and the rotor, a cover sheet is formed in a state covering the clearance and bonded to both of the case and the rotor, whereby the rotary electric device is closed. When the rotor is rotated in an adjusting stage, the cover sheet is readily broken and respective broken and separated parts of the cover sheet are individually retained by the case and the rotor.

Abstract: A drive means of a rotary potentiometer is arranged to work trouble-free in the case of misalignment between the rotary axis of the rotating body and the rotary axis of the driving member. Teeth are arranged in the rotating, or rotary body, the crests of which teeth are directed to the rotary axis. The driving member is adjacent to the one flank of the one tooth and the one flank of the other tooth. The flanks of the teeth are involutely rounded off, so that the applied torque remains substantially constant in event of any misalignment of the driving member axis with respect to the body axis.

Abstract: A multi-slider electrical assembly comprises a metal case having a channel-shaped cross-section mounted on a substrate. The case has parallel slits, and guide blocks are spaced apart in parallel within the case for guiding a plurality of sliders extending through the slits. The case has an engage projection and semi-projections on each side thereof formed at each corner on its side walls. The engage projections are bent in contact with metal layers on the bottom surface of the substrate, and the semi-projections bear on grounding layers on the upper surface of the substrate, in order to hold the substrate therebetween without crushing it and to provide a good ground for the case.

Abstract: A rotary potentiometer sensor is provided for detecting the angular position or movement of a rotary shaft, which includes, a joint of the Oldham type with, on the one hand, three rotary parts, namely a first part carried and driven in rotation by the shaft, a second part adapted for rotating inside the sensor of which it forms the rotary part and a third part, called intermediate part, disposed between the first and second parts and, on the other hand, means provided on these three parts for providing the homocinetic rotational drive of the intermediate part by the first part and of the second part by the intermediate part, while allowing free angular movement; and a case of a general cylindrical shape containing said rotating shaft and the three rotating parts of said joint, this case having two lateral faces one of which is completely closed by a cover integral with the case and the other of which has passing therethrough a circular tube integral with the case and whose internal bore receives the first par

Abstract: A potentiometer has a case, a housing, a base and a rotor rotatably arranged in the chamber of housing. The housing is provided with a pair of projections on both side walls thereof and two pair of corner projections at four corners thereof respectively while the case has a pair of bent long legs in which holes are defined to receive the side wall projections of the housing and a pair of bent short walls are arranged to cover the top of the housing. The case may be pushed down upon the housing with the pair of bent long legs thereof being slid down into vertical grooves arranged between the corner projections of the housing until the side wall projections of the housing are slidingly snapped into the holes of the case and thus, the case and the housing may be assembled in one operation.

Abstract: A rotary potentiometer is provided with a switch, preferably as a final control element for the control of electrical machinery. An enclosed, prefabricated rotary potentiometer component with its own casing is inserted in a cup-shaped upper casing that is open on one side. Switching contact supports are housed in the upper casing by means of peripheral wall sections. These contact supports are actuated by a cam actuating member that is mounted on a fulcrum pin so as to permit play and simultaneously also effect rotation and retention of the potentiometer component in the upper casing.

Abstract: A linear potentiometer, which is used for measuring the relative movement between component parts of a processing machine, particularly an injection molding machine, wherein the covering band of the linear potentiometer, which band covers a longitudinal slit in the upper surface of a tubular housing for a resistance element, is guided through the potentiometer slide per se by means of through openings with a slight upward curvature. As a result, the prerequisites are met that the entire potentiometer slide, including its guide ribs, its slide body and its anchoring plate for a joint, can be formed as an integral cast shaped part made of a high-polymer material. With this type of a slide embodiment, the accuracy of measurement can be kept at a sufficiently high level over long periods of time, even under conditions of extremely sever strains.

Abstract: An electrical part, either of rotary type or linear slide type, including a circuit pattern, a sliding member sliding on the circuit pattern, and an operating member for operating the sliding member, in which the circuit pattern is provided on a circuit sheet made of an insulating film, the circuit sheet is sandwiched between a pair of support plates, means for slidably and engagedly holding the operating member is provided on either of the support plates, and the operating member is projected out of a through hole provided in the support plate.

Abstract: A circuit board for use in a keyboard has a lower insulating sheet, an insulating sheet, and an upper insulating sheet stacked on top of each other. Switch circuit patterns are formed on the upper and lower insulating sheets so as to be opposed to each other. Circuit patterns acting as electrical parts such as rheostats are formed on the insulating spacer.

Abstract: A potentiometer chamber on the intake pipe wall of an internal combustion engine for containing an electrical potentiometer. The potentiometer chamber comprises a limiting wall, formed by the intake pipe wall, a sidewall extends thereto from which serves as lateral limits of the chamber. A partition made by injection molding from plastic, into which are embedded electrical contacts extends from the sidewall and a lid is placed on the partition. Therefore the limiting wall, the sidewall, the partition, and the lid form the chamber that encloses a potentiometer.

Abstract: A throttle value spindle (3) is rotatably fixed to a throttle body (1). A recess is provided within the throttle body at one side of the throttle value spindle along the axial direction of the throttle valve spindle. A holder (6) is fixed to the throttle valve spindle within the recess and has brushes (7) at the opposite side of the throttle valve spindle, which rotates together with the throttle valve spindle. Resistors (12) are mounted on a ceramics circuit board (8) fixed on a housing (12). The housing engages with the recess in such a manner that the resistors contact with the brushes. When the brushes slide on the resistors corresponding to the rotation of the throttle value spindle, an electric signal is outputted continuously from the resistors.