EP0259763A2 - Method for producing non-linear resistive paths, and rotary potentiometer manufactured thereby - Google Patents

Method for producing non-linear resistive paths, and rotary potentiometer manufactured thereby Download PDF

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Publication number
EP0259763A2
EP0259763A2 EP87112765A EP87112765A EP0259763A2 EP 0259763 A2 EP0259763 A2 EP 0259763A2 EP 87112765 A EP87112765 A EP 87112765A EP 87112765 A EP87112765 A EP 87112765A EP 0259763 A2 EP0259763 A2 EP 0259763A2
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EP
European Patent Office
Prior art keywords
resistance
carrier
strips
longitudinal direction
linear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP87112765A
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German (de)
French (fr)
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EP0259763A3 (en
Inventor
Franz Griebel
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Preh GmbH
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Preh GmbH
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Publication of EP0259763A3 publication Critical patent/EP0259763A3/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/04—Adjustable resistors with specified mathematical relationship between movement of resistor actuating means and value of resistance, other than direct proportional relationship
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49087—Resistor making with envelope or housing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49099—Coating resistive material on a base

Definitions

  • the invention relates to a method for producing resistance tracks on a carrier, which is cut into carrier strips, the course of the resistance value of the resistance path in the longitudinal direction of the carrier strip being non-linear.
  • EP-0 179 917 A1 describes a method with which a resistance mass is applied to a carrier by means of a single nozzle. The nozzle can be moved relative to the carrier.
  • US Pat. No. 4,430,634 describes a rotary potentiometer in which a resistor is arranged on a flexible carrier strip along the peripheral wall of a cylindrical chamber.
  • the object of the invention is to propose a method of the type mentioned at the outset by means of which resistors with a non-linear course of the resistance value can be produced efficiently and uniformly with steady transitions between the partial resistance regions.
  • the above object is achieved in a method of the type mentioned at the outset in that the carrier is moved transversely to the longitudinal direction of the carrier strips provided under an application device for resistance compounds which wetly applies several resistance compound strips to the carrier so that their edge zones flow into one another, whereby the resistance masses forming the resistance mass strips have different resistance values corresponding to the intended non-linear resistance profile, and that the carrier strips are then cut out of the carrier coated with the resistance masses.
  • the fact that the resistance mass strips are continuously applied to a carrier enables rational production.
  • the carrier strips cut out after the resistance masses have dried out are particularly suitable for the production of very small potentiometers.
  • the consumption of resistance mass is comparatively low. This also makes the process environmentally friendly.
  • a rotary potentiometer working with a carrier strip produced according to the described method is characterized in that the resistance mass strips are applied to a flexible carrier and the cut carrier strip is inserted so that it is curved around its longitudinal direction into a cylindrical interior of a housing such that it extends around the circumference of the housing Interior extends, and that a tap is used in the interior.
  • An application device (1) which has a plurality of cannulas (2).
  • the cannulas (2) are staggered close together, from them the resistance masses (18) flow onto the carrier (3).
  • the cannulas (2) are supplied with resistance masses (18) which have different resistance values.
  • a flexible carrier film (3) is pulled under the cannulas (2) in the direction of the arrow (P).
  • the carrier film (3) can be supplied by a Roll ⁇ .
  • the cannulas (2) apply resistance strips (4) wet to the carrier film (3). These flow into one another at their parallel edges (5).
  • the carrier film (3) coated with the resistance mass strips (4) passes through a dryer (6). After the dryer (6), the coated carrier film (3) can be rolled up on a further roll and then cut.
  • Carrier strips (8) are punched out of the coated carrier film (3) in a cutting device (7).
  • the longitudinal direction of the carrier strip (8) extends transversely to the transport direction (P) of the carrier film (3) or its longitudinal direction. Resistance areas from all resistance ground strips (4) are thus arranged directly next to one another on the carrier strip (8).
  • a rotary potentiometer (cf. FIG. 3) has a housing (9) with a cylindrical interior (10).
  • the carrier strip (8) is inserted so that it extends around the circumference of the inner wall (11) of the interior (10).
  • the carrier strip (8) is used in such a way that grinders (12) of a tap member (13) stand up on its resistance track.
  • the flexibility of the carrier strip (8) creates a resistance track which is concentric with the axis of rotation of the tap member (13) and on which the grinder (12) rests in the radial direction.
  • the interior (10) can have a diameter of less than 7 mm, for example.
  • the contact pressure of the grinder (12) on the resistance track is independent of the clamping of the tap member (13) in the housing (9). Since the equipotential lines of the resistance track are parallel to the axis of rotation of the tapping member (13) and parallel to each other - that is, they do not run radially to the axis of rotation - a relatively high current carrying capacity of the resistance track is achieved.
  • a further carrier strip (14) is arranged on the inner wall (11). This is provided with a conductive layer. Grinders (15) stand on it and are connected to the grinders (12). The ends of the interconnect and the resistance track are provided with electrical connections (16). A cover (17) of the housing (9) holds the tap (13) in the housing (9).

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Adjustable Resistors (AREA)

Abstract

Ein Verfahren zur Herstellung von nichtlinearen Widerstandsbahnen auf einem Träger soll rationell so durchgeführt werden, daß sich stetige Übergänge zwischen den nichtlinearen Widerstandsteilbereichen ergeben. Es wird hierfür der Träger quer zur Längsrichtung der vorgesehenen Trägerstreifen unter einer Auftragsvorrichtung hindurchbewegt, die dicht nebeneinander mehrere Widerstandsmassestreifen naß auf den Träger aufbringt. Die Widerstandsmassen weisen dem vorgesehenen nichtlinearen Widerstandsverlauf entsprechend unterschiedliche Widerstandswerte auf. Die Trägerstreifen werden quer zur Bewegungsrichtung des Trägers aus diesem ausgeschnitten.A method for producing non-linear resistance tracks on a carrier should be carried out rationally in such a way that there are continuous transitions between the non-linear resistance subregions. For this purpose, the carrier is moved transversely to the longitudinal direction of the carrier strips provided under an application device which wetly applies a plurality of resistance mass strips to the carrier in close proximity to one another. The resistance masses have different resistance values corresponding to the intended non-linear resistance curve. The carrier strips are cut out of the carrier transverse to the direction of movement.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Widerstands­bahnen auf einem Träger, der in Trägerstreifen geschnitten wird, wobei der Verlauf des Widerstandswertes der Widerstandsbahn in Längsrichtung des Trägerstreifens nichtlinear ist.The invention relates to a method for producing resistance tracks on a carrier, which is cut into carrier strips, the course of the resistance value of the resistance path in the longitudinal direction of the carrier strip being non-linear.

Es ist bekannt, Widerstandsbahnen mit nichtlinearem Verlauf des Wider­standswertes in Siebdrucktechnik zu fertigen. Dabei entstehen scharfe Abgrenzungen zwischen den einzelnen Teilbereichen der Widerstandsbahn. Dies ist unerwünscht, da dann längs der Widerstandsbahn beträchtliche Sprünge des Widerstandswertes auftreten.It is known to produce resistance tracks with a non-linear course of the resistance value using screen printing technology. This creates sharp boundaries between the individual sections of the resistance track. This is undesirable since considerable jumps in the resistance value then occur along the resistance path.

Ebenfalls bekannt ist das Herstellen nichtlinearer Widerstandsbahnen durch aufeinanderfolgendes Vernebeln und Niederschlagen der Widerstands­massen. Dieses Verfahren belastet das Umfeld und ist im Ergebnis großen Streuungen des Widerstandes der Widerstandsbahn unterworfen. Außerdem sind die erforderlichen Schablonen ständig aufzubereiten.It is also known to produce non-linear resistance tracks by successively atomizing and depositing the resistance masses. This process puts a strain on the environment and is, as a result, subject to large variations in the resistance of the resistance track. In addition, the required templates must be prepared constantly.

Es ist auch bekannt, auf einem ausgestanzten Trägerstreifen eine Wider­standsbahn durch Aufträufeln von Widerstandstinte zu fertigen. Dieses Verfahren ist aufwendig und für eine Massenfertigung kaum geeignet.It is also known to produce a resistive track on a punched-out carrier strip by trickling on resistive ink. This process is complex and hardly suitable for mass production.

In der EP-0 179 917 A1 ist ein Verfahren beschrieben, mit dem mittels einer einzigen Düse eine Widerstandsmasse auf einen Träger aufgebracht wird. Die Düse ist hierbei gegenüber dem Träger verfahrbar.EP-0 179 917 A1 describes a method with which a resistance mass is applied to a carrier by means of a single nozzle. The nozzle can be moved relative to the carrier.

In der US PS 4 430 634 ist ein Drehpotentiometer beschrieben, bei dem ein Widerstand auf einem flexiblen Trägerstreifen längs der Umfangswand einer zylindrischen Kammer angeordnet ist.US Pat. No. 4,430,634 describes a rotary potentiometer in which a resistor is arranged on a flexible carrier strip along the peripheral wall of a cylindrical chamber.

Aufgabe der Erfindung ist es, ein Verfahren der eingangs genannten Art vorzuschlagen, durch das sich Widerstände mit nichtlinearem Verlauf des Widerstandswertes rationell und gleichmäßig mit stetigen Übergängen zwischen den Widerstandsteilbereichen herstellen lassen.The object of the invention is to propose a method of the type mentioned at the outset by means of which resistors with a non-linear course of the resistance value can be produced efficiently and uniformly with steady transitions between the partial resistance regions.

Erfindungsgemäß ist obige Aufgabe bei einem Verfahren der eingangs ge­nannten Art dadurch gelöst, daß der Träger quer zur Längsrichtung der vorgesehenen Trägerstreifen unter einer Auftragsvorrichtung für Wider­standsmassen hindurchbewegt wird, die dicht nebeneinander mehrere Wider­standsmassestreifen naß auf den Träger aufbringt, so daß deren Randzonen ineinander verfließen, wobei die die Widerstandsmassestreifen bildenden Widerstandsmassen dem vorgesehenen nichtlinearen Widerstandsverlauf ent­sprechend unterschiedliche Widerstandswerte aufweisen, und daB die Trägerstreifen danach aus dem mit den Widerstandsmassen beschichteten Träger geschnitten werden.According to the invention, the above object is achieved in a method of the type mentioned at the outset in that the carrier is moved transversely to the longitudinal direction of the carrier strips provided under an application device for resistance compounds which wetly applies several resistance compound strips to the carrier so that their edge zones flow into one another, whereby the resistance masses forming the resistance mass strips have different resistance values corresponding to the intended non-linear resistance profile, and that the carrier strips are then cut out of the carrier coated with the resistance masses.

Dadurch, daß die Widerstandsmassen in noch nassem Zustand ineinander­fließen, wobei sie sich vermischen, sind die Übergänge zwischen den einzelnen Widerstandswerten kontinuierlich. Es wird also eine gleich­mäßige Kennlinie erreicht.Due to the fact that the resistance masses flow into one another while still wet, whereby they mix, the transitions between the individual resistance values are continuous. A uniform characteristic curve is therefore achieved.

Dadurch, daß auf einen Träger die Widerstandsmassestreifen kontinuier­lich aufgebracht werden, ist eine rationelle Fertigung möglich. Die nach dem Austrocknen der Widerstandsmassen ausgeschnittenen Trägerstreifen eignen sich insbesondere auch für die Herstellung sehr kleiner Potentio­meter.The fact that the resistance mass strips are continuously applied to a carrier enables rational production. The carrier strips cut out after the resistance masses have dried out are particularly suitable for the production of very small potentiometers.

Beim beschriebenen Verfahren ist der Verbrauch an Widerstandsmasse ver­gleichsweise gering. Das Verfahren ist dadurch auch umweltfreundlich.In the described method, the consumption of resistance mass is comparatively low. This also makes the process environmentally friendly.

Ein mit einem nach dem beschriebenen Verfahren hergestellten Träger­streifen arbeitendes Drehpotentiometer zeichnet sich dadurch aus, daß die Widerstandsmassestreifen auf einen flexiblen Träger aufgebracht sind und der geschnittene Trägerstreifen so um seine Längsrichtung gewölbt in einen zylindrischen Innenraum eines Gehäuses eingesetzt wird, daß er sich um den Umfang des Innenraums erstreckt, und daß in den Innenraum ein Abgriffsglied eingesetzt ist.A rotary potentiometer working with a carrier strip produced according to the described method is characterized in that the resistance mass strips are applied to a flexible carrier and the cut carrier strip is inserted so that it is curved around its longitudinal direction into a cylindrical interior of a housing such that it extends around the circumference of the housing Interior extends, and that a tap is used in the interior.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus der folgenden Beschreibung eines Ausführungsbeispiels.Further advantageous refinements of the invention result from the following description of an exemplary embodiment.

In der Zeichnung zeigen:

  • Figur 1 eine Einrichtung zur Durchführung des Verfahrens schematisch,
  • Figur 2 die Einrichtung nach Figur 1 in der Seitenansicht
    und
  • Figur 3 ein Drehpotentiometer mit einem nach dem Verfahren herge­stellten Widerstand.
The drawing shows:
  • FIG. 1 schematically shows a device for carrying out the method,
  • Figure 2 shows the device of Figure 1 in side view
    and
  • Figure 3 is a rotary potentiometer with a resistor made by the method.

Es ist eine Auftragsvorrichtung (1) vorgesehen, die eine Mehrzahl von Kanülen (2) aufweist. Die Kanülen (2) sind dicht nebeneinander ge­staffelt angeordnet, aus ihnen fließen die Widerstandsmassen (18) auf den Träger (3). Die Kanülen (2) sind mit Widerstandsmassen (18) ver­sorgt, die unterschiedliche Widerstandswerte aufweisen.An application device (1) is provided which has a plurality of cannulas (2). The cannulas (2) are staggered close together, from them the resistance masses (18) flow onto the carrier (3). The cannulas (2) are supplied with resistance masses (18) which have different resistance values.

Unter den Kanülen (2) wird eine flexible Trägerfolie (3) in Richtung des Pfeiles (P) hindurchgezogen. Die Trägerfolie (3) kann dabei von einer Rollë geliefert sein.A flexible carrier film (3) is pulled under the cannulas (2) in the direction of the arrow (P). The carrier film (3) can be supplied by a Rollë.

Die Kanülen (2) bringen auf die Trägerfolie (3) Widerstandsmassestreifen (4) naß auf. Diese fließen dabei an ihren parallelen Rändern (5) inein­ander.The cannulas (2) apply resistance strips (4) wet to the carrier film (3). These flow into one another at their parallel edges (5).

Im Anschluß hieran fährt die mit den Widerstandsmassestreifen (4) be­schichtete Trägerfolie (3) durch einen Trockner (6). Hinter dem Trockner (6) kann die beschichtete Trägerfolie (3) auf einer weiteren Rolle auf­gerollt werden und danach geschnitten werden.Following this, the carrier film (3) coated with the resistance mass strips (4) passes through a dryer (6). After the dryer (6), the coated carrier film (3) can be rolled up on a further roll and then cut.

Es werden aus der beschichteten Trägerfolie (3) in einer Schneidvor­richtung (7) Trägerstreifen (8) ausgestanzt. Die Längsrichtung des Trägerstreifens (8) erstreckt sich quer zur Transportrichtung (P) der Trägerfolie (3) bzw. deren Längsrichtung. Auf dem Trägerstreifen (8) liegen damit Widerstandsbereiche aus allen Widerstandsmassestreifen (4) unmittelbar nebeneinander gereiht.Carrier strips (8) are punched out of the coated carrier film (3) in a cutting device (7). The longitudinal direction of the carrier strip (8) extends transversely to the transport direction (P) of the carrier film (3) or its longitudinal direction. Resistance areas from all resistance ground strips (4) are thus arranged directly next to one another on the carrier strip (8).

Ein Drehpotentiometer (vgl. Figur 3) weist ein Gehäuse (9) mit einem zylindrischen Innenraum (10) auf. In den Innenraum (10) ist der Träger­streifen (8) so gewölbt eingesetzt, daß er sich um den Umfang der Innen­wand (11) des Innenraums (10) erstreckt. Der Trägerstreifen (8) ist dabei so eingesetzt, daß auf seiner Widerstandsbahn Schleifer (12) eines Abgriffsgliedes (13) aufstehen. Durch die Flexibilität des Träger­streifens (8) ist dabei eine zur Drehachse des Abgriffsgliedes (13) konzentrische Widerstandsbahn geschaffen, auf der der Schleifer (12) in radialer Richtung aufliegt.A rotary potentiometer (cf. FIG. 3) has a housing (9) with a cylindrical interior (10). In the interior (10), the carrier strip (8) is inserted so that it extends around the circumference of the inner wall (11) of the interior (10). The carrier strip (8) is used in such a way that grinders (12) of a tap member (13) stand up on its resistance track. The flexibility of the carrier strip (8) creates a resistance track which is concentric with the axis of rotation of the tap member (13) and on which the grinder (12) rests in the radial direction.

Durch diese Anordnung des Trägerstreifens (8) lassen sich sehr kleine Potentiometer aufbauen. Der Innenraum (10) kann beispielsweise einen Durchmesser von kleiner 7 mm aufweisen. Außerdem ist die Andruckkraft des Schleifers (12) auf die Widerstandsbahn unabhängig von der Ein­spannung des Abgriffsgliedes (13) in dem Gehäuse (9). Da die Äqui­potentiallinien der Widerstandsbahn parallel zu der Drehachse des Ab­griffsgliedes (13) und parallel zueinander liegen - also nicht radial zur Drehachse verlaufen - ist eine relativ hohe Strombelastbarkeit der Widerstandsbahn erreicht.This arrangement of the carrier strip (8) allows very small potentiometers to be built up. The interior (10) can have a diameter of less than 7 mm, for example. In addition, the contact pressure of the grinder (12) on the resistance track is independent of the clamping of the tap member (13) in the housing (9). Since the equipotential lines of the resistance track are parallel to the axis of rotation of the tapping member (13) and parallel to each other - that is, they do not run radially to the axis of rotation - a relatively high current carrying capacity of the resistance track is achieved.

An der Innenwand (11) ist ein weiterer Trägerstreifen (14) angeordnet. Dieser ist mit einer Leitschicht versehen. Auf ihm stehen Schleifer (15) auf, die mit den Schleifern (12) verbunden sind. Die Leitbahn und die Widerstandsbahn sind an ihren Enden mit elektrischen Anschlüssen (16) versehen. Ein Deckel (17) des Gehäuses (9) hält das Abgriffsglied (13) im Gehäuse (9).A further carrier strip (14) is arranged on the inner wall (11). This is provided with a conductive layer. Grinders (15) stand on it and are connected to the grinders (12). The ends of the interconnect and the resistance track are provided with electrical connections (16). A cover (17) of the housing (9) holds the tap (13) in the housing (9).

Bezugszeichenliste 10/86 Pt.10/86 Pt.

  • 1 Auftragsvorrichtung1 application device
  • 2 Kanülen2 cannulas
  • 3 Träger, -folie3 carrier, film
  • 4 Widerstandsmassestreifen4 resistance ground strips
  • 5 Ränder5 edges
  • 6 Trockner6 dryers
  • 7 Schneidvorrichtung7 cutting device
  • 8 Trägerstreifen8 carrier strips
  • 9 Gehäuse9 housing
  • 10 Innenraum10 interior
  • 11 Innenwand11 inner wall
  • 12 Schleifer12 grinders
  • 13 Abgriffsglied13 tap
  • 14 weiterer Trägerstreifen14 additional carrier strips
  • 15 Schleifer15 grinders
  • 16 Anschlüsse16 connections
  • 17 Deckel17 lid
  • 18 Widerstandsmasse18 resistance mass
  • P PfeilP arrow

Claims (4)

1. Verfahren zur Herstellung von Widerstandsbahnen auf einem Träger, der in Trägerstreifen geschnitten wird, wobei der Verlauf des Widerstandswertes der Widerstandsbahn in Längsrichtung des Träger­streifens nichtlinear ist,
dadurch gekennzeichnet,
daB der Träger quer zur Längsrichtung der vorgesehenen Träger­streifen unter einer Auftragsvorrichtung für Widerstandsmassen hindurchbewegt wird, die dicht nebeneinander mehrere Widerstands­massestreifen naß auf den Träger aufbringt, so daß deren Randzonen ineinander verfließen, wobei die die Widerstandsmassestreifen bildenden Widerstandsmassen dem vorgesehenen nichtlinearen Wider­standsverlauf entsprechend unterschiedliche Widerstandswerte auf­weisen, und daß die Trägerstreifen danach aus dem mit den Wider­standsmassen beschichteten Träger geschnitten werden.1. A method for producing resistance tracks on a support which is cut into support strips, the course of the resistance value of the resistance track in the longitudinal direction of the support strip being non-linear,
characterized,
that the carrier is moved transversely to the longitudinal direction of the provided carrier strips under an application device for resistance masses, which wetly applies several resistance mass strips to the carrier close together, so that their edge zones flow into one another, the resistance masses forming the resistance mass strips having different resistance values in accordance with the intended non-linear resistance curve, and that the carrier strips are then cut from the carrier coated with the resistance materials. 2. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß die Auftragsvorrichtung mehrere gestaffelt nebeneinander ange­ordnete Kanülen aufweist.2. The method according to claim 1,
characterized,
that the application device has a plurality of staggered cannulas. 3. Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der Träger nach dem Aufbringen der Widerstandsmassestreifen und dem Verfließen deren Randzonen durch einen Trockner hindurchtrans­portiert wird.3. The method according to claim 1 or 2,
characterized,
that the carrier is transported through a dryer after the application of the resistance mass strips and the flowing of their edge zones. 4. Drehpotentiometer mit einem nach einem der vorhergehenden Ansprüche hergestellten Trägerstreifen,
dadurch gekennzeichnet,
daß die Widerstandsmassestreifen (4) auf eine flexible Trägerfolie (3) aufgebracht sind und der Trägerstreifen (8) so um seine Längs­richtung gewölbt in einen zylindrischen Innenraum (10) eines Gehäuses (9) eingesetzt wird, daB er sich um den Umfang der Innen­wand (11) erstreckt, und daß in den Innenraum (10) ein Abgriffs­glied (13) eingesetzt ist.4. rotary potentiometer with a carrier strip produced according to one of the preceding claims,
characterized,
that the resistance mass strips (4) are applied to a flexible carrier film (3) and the carrier strip (8) is curved around its longitudinal direction and inserted into a cylindrical interior (10) of a housing (9) such that it extends around the circumference of the inner wall ( 11) extends, and that in the interior (10) a tap (13) is inserted.
EP87112765A 1986-09-12 1987-09-02 Method for producing non-linear resistive paths, and rotary potentiometer manufactured thereby Withdrawn EP0259763A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863631057 DE3631057A1 (en) 1986-09-12 1986-09-12 METHOD FOR PRODUCING NON-LINEAR RESISTANCE TRACKS AND ROTATION POTENTIOMETER PRODUCED BY THIS METHOD
DE3631057 1986-09-12

Publications (2)

Publication Number Publication Date
EP0259763A2 true EP0259763A2 (en) 1988-03-16
EP0259763A3 EP0259763A3 (en) 1990-01-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112765A Withdrawn EP0259763A3 (en) 1986-09-12 1987-09-02 Method for producing non-linear resistive paths, and rotary potentiometer manufactured thereby

Country Status (4)

Country Link
US (1) US4841626A (en)
EP (1) EP0259763A3 (en)
JP (1) JPS6373601A (en)
DE (1) DE3631057A1 (en)

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EP0348679A2 (en) * 1988-06-25 1990-01-03 TEMIC TELEFUNKEN microelectronic GmbH Adjustable resistor, in particular for manual switches of electrical tools

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DE3807005C1 (en) * 1988-03-04 1989-02-23 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt, De
US6052049A (en) * 1996-09-13 2000-04-18 Cts Corporation Flexible film with a non-tensioned electrical circuit mounted thereon
US6276230B1 (en) 1999-05-11 2001-08-21 Cts Corporation Handle bar throttle controller

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FR2081825A1 (en) * 1970-03-10 1971-12-10 Globe Union Inc
EP0157666A1 (en) * 1984-02-28 1985-10-09 Siemens Automotive S.A. Rotating potentiometer, particularly for angular position measurement

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0348679A2 (en) * 1988-06-25 1990-01-03 TEMIC TELEFUNKEN microelectronic GmbH Adjustable resistor, in particular for manual switches of electrical tools
EP0348679A3 (en) * 1988-06-25 1991-10-16 TEMIC TELEFUNKEN microelectronic GmbH Adjustable resistor, in particular for manual switches of electrical tools

Also Published As

Publication number Publication date
US4841626A (en) 1989-06-27
DE3631057C2 (en) 1989-11-23
JPS6373601A (en) 1988-04-04
EP0259763A3 (en) 1990-01-17
DE3631057A1 (en) 1988-03-24

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