EP0600153B1 - Contact sleeve - Google Patents

Contact sleeve Download PDF

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Publication number
EP0600153B1
EP0600153B1 EP93110759A EP93110759A EP0600153B1 EP 0600153 B1 EP0600153 B1 EP 0600153B1 EP 93110759 A EP93110759 A EP 93110759A EP 93110759 A EP93110759 A EP 93110759A EP 0600153 B1 EP0600153 B1 EP 0600153B1
Authority
EP
European Patent Office
Prior art keywords
contact sleeve
contact
sleeve according
cutout
screw
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.)
Expired - Lifetime
Application number
EP93110759A
Other languages
German (de)
French (fr)
Other versions
EP0600153A1 (en
Inventor
Haiderali Harji
Franz Gutmann
Werner Eckhardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0600153A1 publication Critical patent/EP0600153A1/en
Application granted granted Critical
Publication of EP0600153B1 publication Critical patent/EP0600153B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28Clamped connections, spring connections
    • H01R4/30Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34Conductive members located under head of screw
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50Fixed connections
    • H01R12/51Fixed connections for rigid printed circuits or like structures
    • H01R12/55Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/20Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together
    • H01R13/207Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together by screw-in connection
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50Fixed connections
    • H01R12/51Fixed connections for rigid printed circuits or like structures
    • H01R12/515Terminal blocks providing connections to wires or cables

Definitions

  • the invention relates to a contact sleeve for insertion into a recess of a housing or support component of a measuring mechanism, which can be electrically conductively connected to the measuring mechanism, wherein a contact or fastening screw can be screwed into the recess via the contact sleeve, through which a circuit board can be inserted It can be pressed against an end region of the recess and an interconnect region of the circuit board can be connected in an electrically conductive manner to the contact sleeve.
  • the object of the invention is to provide a contact sleeve of the type mentioned at the outset, which ensures a high level of contact reliability and can still be used for the most varied arrangements of the conductor track region on the printed circuit board.
  • the contact sleeve has at its end facing the circuit board an approximately radially outwardly extending flange-like extension which extends into the front mouth area of the recess between the housing or carrier component and the circuit board which can be pressed thereon.
  • This design makes it possible to arrange the conductor track area on the one hand on the side facing away from the housing component, the screw serving both as a contact screw and as a fastening screw.
  • the conductor track area is arranged on the side facing the housing component.
  • the flange-like extension lies over a large area on the conductor track area and thus reliably establishes contact.
  • the screw only has the function of fastening the circuit board to the housing component and pressing the conductor track area onto the flange-like extension.
  • the flange-like extension is not only used for contacting, but also forms a mounting stop when inserting the contact sleeve into the recess of the housing component.
  • the flange-like extension acts to a certain extent as a spring arm and is clamped between the housing component and the circuit board when the screw is screwed on, as a result of which both the reliability of contact is increased and manufacturing tolerances can be compensated for.
  • the contact sleeve is particularly simple to manufacture if the flange-like extension is formed by one or more radially outwardly directed tabs.
  • the contact sleeve can consist of a sheet metal part bent into a sleeve, in the end region of which there are flap-forming axial incisions which enable the flaps to be bent radially outwards. This training also improves the spring behavior and thus the contact security of the extension.
  • the contact screw can preferably be pressed with its screw head, which widens radially with respect to the screw shaft, onto the conductor track region arranged on the side of the printed circuit board facing away from the housing or carrier component.
  • a contact hole disk can be arranged between the screw head and the conductor track area, the contact reliability being increased even further if a spring washer can be arranged between the screw head and the contact hole disk.
  • the two variants of the circuit board contacts can be used at each end of the recess. This means that a single version of a contact sleeve can be used for a wide variety of mounting variants of the printed circuit board, so that the contact sleeve can be manufactured and stored inexpensively.
  • the flange-like extension extends radially outwards at an acute angle to the front mouth area of the housing or carrier component, then the Spring effect of the flange-like extension and thus the contact reliability is increased.
  • the recess and the contact sleeve can have a circular or even a polygonal, in particular square, cross section.
  • the polygonal cross-section has the advantage that it provides positive locking against rotation about the longitudinal axis of the contact sleeve in the recess.
  • the contact sleeve has a continuous longitudinal slot, spreading and thus securing the position of the contact sleeve in the recess can be achieved in a simple manner by screwing in the contact or fastening screw.
  • the longitudinal slot preferably extends along a corner of the contact sleeve.
  • the contact or fastening screw can be screwed into the contact sleeve in a self-tapping or thread-tapping manner.
  • the inner wall of the contact sleeve and / or the surface of the contact flange facing the conductor track has a highly conductive, easily plastically deformable layer, such as, for. B. a tin layer is provided.
  • This layer is preferably made of a material which additionally has a low contact resistance and is not oxidizing.
  • the shape of the adjoining one is adapted both in the area of the screw shank and in the area of the flange-like extension Parts and thus a high level of contact reliability achieved.
  • a further embodiment for the screwability of the screw consists in that at least one radially inwardly directed projection for engaging in the thread of the contact or fastening screw is formed on the inner wall of the contact sleeve.
  • a plurality of projections are preferably formed in accordance with the pitch and pitch of the thread of the contact or fastening screw.
  • the contact sleeve can be inserted into the recess with force and / or friction and / or positive locking.
  • the contact sleeve can be provided on its outer lateral surface with a roughening which, for. B. is formed by knurling.
  • the contact sleeve has a projection protruding from its outer surface.
  • the contact sleeve can also have a resilient arm projecting from its outer lateral surface.
  • the contact surface can have an opening on its outer lateral surface, into which an appropriate extension projecting from the inner wall of the recess can be engaged.
  • the contact sleeve can have a contact tab for connecting the measuring mechanism. Is the contact tab by bending a partially punched out wall section from the Formed outer surface of the contact sleeve, no additional material is required for the contact tab.
  • the measuring instrument shown in FIGS. 1, 2 and 3 is a measuring mechanism with a winding carrier 1 carrying windings 4 with support arms 2 arranged laterally thereto for fastening a printed circuit board and optionally also for fastening the measuring instrument to a carrier.
  • a permanent magnet is rotatably mounted within the windings 4, depending on the current supply to the windings, from which a pointer axis 5 projects outside the windings.
  • a pointer axis 5 projects outside the windings.
  • In the support arms 2 are axially to the pointer axis 5 through recesses 6 and 6 ', in which contact sleeves 7 and 7' are inserted.
  • the contact sleeves 7 and 7 ' have laterally projecting contact tabs 8, with which the winding ends 9 are connected.
  • the contact sleeves 7 and 7 ' are provided with flange-like outwardly directed tabs 10, which extend approximately radially along the end region of the recesses 6 and 6'.
  • a circuit board 11, 11 'or 11' is placed on the end face of the support arms 2 and fastened by a fastening screw 12.
  • This fastening screw 12 extends through a recess 13 in the circuit board 11, 11 'and 11 ⁇ and is screwed with its shaft 14 into the contact sleeve 7'.
  • the fastening screw 12 is a self-tapping screw that cuts with its thread into the inner wall of the contact sleeve 7 '.
  • the fastening screw 12 presses the printed circuit board 11, 11 'or 11' over the lugs 10 of the contact sleeve 7 'which extend between the support arm 2 and the printed circuit board 11, 11' and 11 ', onto the front mouth region of the recess 6 surrounding the recess 6 Support arm 2.
  • circuit board 11 ' is a flexible circuit board, between which and the tab 10 a support plate 16 is arranged.
  • the copper-clad conductor area 17 of the circuit boards 11 and 11 ' is arranged on the side facing the screw head 15.
  • the screw head 15 lies on a contact plate 18 resting on the conductor track region 17 and a spring washer 19 on the conductor track region 17.
  • the conductor track region 17 is conductively connected to the contact sleeve 7 '.
  • the conductor track region 17 is arranged on the side of the printed circuit board 11 ⁇ facing away from the screw head 15 and lies directly on the tab 10 of the contact sleeve 7 '.
  • the contact sleeve 7 'shown in FIGS. 4 and 5, which is provided for the measuring instrument according to FIG. 3 and the exemplary embodiments of FIGS. 8 to 10, has a square cross section and a longitudinal slot 20 along one corner.
  • This contact sleeve 7' provided for insertion into a recess 6 'corresponding square cross section.
  • the contact sleeve 7 ' is inserted in the state shown with axially directed tab 10 in the recess 6' and then this lower tab 10 is bent approximately at right angles to the upper tab. So that form both the tabs formed on the upper and also on the lower end of the contact sleeve 10, which abut against the surfaces of the support arm which extend approximately radially along the two-sided front mouth regions of the recess 6 '.
  • the outer lateral surface of the contact sleeve 7 ' is provided in its two end regions with a knurling 21, so that the contact sleeve 7' when screwed in the contact sleeve 7 'spreading fastening screw 12 with friction and friction on the wall of the recess 6 'is in contact.
  • the fastening screw 12 is screwed self-tapping into the contact sleeve 7 '.
  • the contact sleeve 7 shown in FIGS. 6 and 7, which is provided for the measuring instrument according to FIGS. 1 and 2, has a round cross-section with a longitudinal slot 20 corresponding to the recess 6 assigned to it.
  • the insertion and axial securing of the contact sleeve 7 by the flaps 10 are bent as in the exemplary embodiment according to FIGS. 4 and 5.
  • the additional securing of the contact sleeve 7 in the recess 6 is carried out by means of notches produced by resilient arms 21 protruding from the outer lateral surface of the contact sleeve 7, which extend with their free end can claw into the wall of the recess 6.
  • the contact tab 8 is formed by bending out a partially punched wall section from the outer surface of the contact sleeve 7.
  • the contact sleeve 7 furthermore has radially inwardly directed projections 23 which are produced by indentations and which are designed such that they are offset in height and laterally in accordance with the pitch of the thread of the fastening screw 12. As a result, they form a thread into which the fastening screw 12 can be screwed with its thread.
  • the tabs 10 of the contact sleeve 7 extend, as can be seen in particular in FIG. 1, at an acute angle to the front mouth area of the support arm, so that they bear against the printed circuit board 11 in the assembled state with resilient bias.
  • tabs 10 are arranged at both ends of the contact sleeves 7 and 7 ', so that printed circuit boards 11, 11' or 11 'can be arranged either on the front or on the back of the measuring mechanism .

Landscapes

  • Measuring Leads Or Probes (AREA)

Description

Die Erfindung bezieht sich auf eine Kontakthülse zum Einsetzen in eine Ausnehmung eines Gehäuse- oder Trägerbauteils eines Meßwerks, die mit den Meßwerk elektrisch leitend verbindbar ist, wobei über die Kontakthülse eine Kontakt- bzw. Befestiungsschraube in die Ausnehmung einschraubbar ist, durch die eine Leiterplatte in Anlage an einen stirnseitigen Mündungsbereich der Ausnehmung anpreßbar ist und wobei ein Leiterbahnbereich der Leiterplatte mit der Kontakthülse elektrisch leitend verbindbar ist.The invention relates to a contact sleeve for insertion into a recess of a housing or support component of a measuring mechanism, which can be electrically conductively connected to the measuring mechanism, wherein a contact or fastening screw can be screwed into the recess via the contact sleeve, through which a circuit board can be inserted It can be pressed against an end region of the recess and an interconnect region of the circuit board can be connected in an electrically conductive manner to the contact sleeve.

Bei einer derartigen Kontakthülse ist es bekannt, mittels der Kontaktschraube eine Kontaktierung eines Leiterbahnbereichs der Leiterplatte mit der Kontakthülse herzustellen. Dabei liegt die Kontaktschraube mit ihren Schraubenkopf auf der dem Gehäusebauteil abgewandten Seite der Leiterplatte auf der Leiterbahn auf.In the case of such a contact sleeve, it is known to use the contact screw to make contact with a conductor track region of the printed circuit board with the contact sleeve. The contact screw rests with its screw head on the side of the circuit board facing away from the housing component on the conductor track.

Aufgabe der Erfindung ist es, eine Kontakthülse der eingangs genannten Art zu schaffen, die eine hohe Kontaktzuverlässigkeit gewährleistet und unverändert für die verschiedensten Anordnungen des Leiterbahnbereichs auf der Leiterplatte verwendbar ist.The object of the invention is to provide a contact sleeve of the type mentioned at the outset, which ensures a high level of contact reliability and can still be used for the most varied arrangements of the conductor track region on the printed circuit board.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kontakthülse an ihrem der Leiterplatte zugewandten Ende eine sich etwa radial nach außen erstreckende flanschartige Erweiterung aufweist, die sich in den stirnseitigen Mündungsbereich der Ausnehmung zwischen Gehäuse- oder Trägerbauteil und darauf anpreßbarer Leiterplatte erstreckt.This object is achieved in that the contact sleeve has at its end facing the circuit board an approximately radially outwardly extending flange-like extension which extends into the front mouth area of the recess between the housing or carrier component and the circuit board which can be pressed thereon.

Diese Ausbildung ermöglicht es, den Leiterbahnbereich zum einen auf der dem Gehäusebauteil abgewandten Seite anzuordnen, wobei die Schraube sowohl als Kontaktschraube als auch als Befestigungsschraube dient.This design makes it possible to arrange the conductor track area on the one hand on the side facing away from the housing component, the screw serving both as a contact screw and as a fastening screw.

In einer anderen Möglichkeit ist der Leiterbahnbereich auf der dem Gehäusebauteil zugewandten Seite angeordnet. In diesen Fall liegt die flanschartige Erweiterung großflächig an dem Leiterbahnbereich an und stellt so den Kontakt sicher her. Die Schraube hat in diesem Fall nur die Funktion zur Befestigung der Leiterplatte an dem Gehäusebauteil und zum Aufpressen des Leiterbahnbereichs auf die flanschartige Erweiterung.In another possibility, the conductor track area is arranged on the side facing the housing component. In this case, the flange-like extension lies over a large area on the conductor track area and thus reliably establishes contact. In this case, the screw only has the function of fastening the circuit board to the housing component and pressing the conductor track area onto the flange-like extension.

Die flanschartige Erweiterung dient aber nicht nur zur Kontaktierung, sondern bildet gleichzeitig einen Montageanschlag beim Einsetzen der Kontakthülse in die Ausnehmung des Gehäusebauteils.The flange-like extension is not only used for contacting, but also forms a mounting stop when inserting the contact sleeve into the recess of the housing component.

Weiterhin wirkt die flanschartige Erweiterung in bestimmten Umfang als Federarm und wird beim Aufschrauben der Schraube zwischen dem Gehäusebauteil und der Leiterplatte verspannt, wodurch sowohl die Kontaktsicherheit erhöht wird als auch Herstellungstoleranzen ausgeglichen werden können.Furthermore, the flange-like extension acts to a certain extent as a spring arm and is clamped between the housing component and the circuit board when the screw is screwed on, as a result of which both the reliability of contact is increased and manufacturing tolerances can be compensated for.

Besonders einfach herstellbar ist die Kontakthülse, wenn die flanschartige Erweiterung durch einen oder mehrere radial nach außen gerichtete Lappen gebildet ist. Dadurch kann die Kontakthülse aus einem zu einer Hülse gebogenen Blechteil bestehen, in dessen Endbereich Lappen bildende axiale Einschnitte vorhanden sind, die ein radial nach außen Umbiegen der Lappen ermöglichen. Diese Ausbildung verbessert auch das Federverhalten und damit die Kontaktsicherheit der Erweiterung.The contact sleeve is particularly simple to manufacture if the flange-like extension is formed by one or more radially outwardly directed tabs. Thereby the contact sleeve can consist of a sheet metal part bent into a sleeve, in the end region of which there are flap-forming axial incisions which enable the flaps to be bent radially outwards. This training also improves the spring behavior and thus the contact security of the extension.

Die Kontaktschraube ist vorzugsweise mit ihrem gegenüber dem Schraubenschaft radial sich erweiternden Schraubenkopf an den auf der dem Gehäuse- oder Trägerbauteil abgewandten Seite der Leiterplatte angeordneten Leiterbahnbereich anpreßbar.The contact screw can preferably be pressed with its screw head, which widens radially with respect to the screw shaft, onto the conductor track region arranged on the side of the printed circuit board facing away from the housing or carrier component.

Zur Erhöhung der Kontaktsicherheit und zum Schutz des Leiterbahnbereichs gegen Abrieb kann zwischen Schraubenkopf und Leiterbahnbereich eine Kontaktlochscheibe angeordnet sein, wobei die Kontaktsicherheit noch erhöht wird, wenn zwischen Schraubenkopf und Kontaktlochscheibe eine Federscheibe anordenbar ist.To increase the contact reliability and to protect the conductor track area against abrasion, a contact hole disk can be arranged between the screw head and the conductor track area, the contact reliability being increased even further if a spring washer can be arranged between the screw head and the contact hole disk.

Ist die Ausnehmung durchgehend und die Kontakthülse sich durch die gesamte Ausnehmung erstreckend ausgebildet, wobei flanschartige Erweiterungen sich in beide stirnseitigen Mündungsbereiche der Ausnehmung erstrecken, so können die beiden Varianten der Leiterplattenkontaktierungen an jedem Ende der Ausnehmung angewandt werden. Dies führt dazu, daß eine einzige Ausführung einer Kontakthülse für die verschiedensten Anbauvarianten der Leiterplatte verwendet werden können, so daß eine kostengünstige Herstellung und Lagerhaltung der Kontakthülse möglich ist.If the recess is continuous and the contact sleeve extends through the entire recess, with flange-like extensions extending into both front mouth areas of the recess, the two variants of the circuit board contacts can be used at each end of the recess. This means that a single version of a contact sleeve can be used for a wide variety of mounting variants of the printed circuit board, so that the contact sleeve can be manufactured and stored inexpensively.

Erstreckt sich die flanschartige Erweiterung radial nach außen unter einem spitzen Winkel zum stirnseitigen Mündungsbereich des Gehäuse- oder Trägerbauteils, so wird die Federwirkung der flanschartigen Erweiterung und damit die Kontaktsicherheit noch erhöht.If the flange-like extension extends radially outwards at an acute angle to the front mouth area of the housing or carrier component, then the Spring effect of the flange-like extension and thus the contact reliability is increased.

Ausnehmung und Kontakthülse können einen kreisförmigen oder auch einen mehreckigen, insbesondere quadratischen Querschnitt aufweisen. Dabei hat der mehreckige Querschnitt den Vorteil, daß durch ihn gleichzeitig eine formschlüssige Sicherung gegen Verdrehen um die Längsachse der Kontakthülse in der Ausnehmung gegeben ist.The recess and the contact sleeve can have a circular or even a polygonal, in particular square, cross section. The polygonal cross-section has the advantage that it provides positive locking against rotation about the longitudinal axis of the contact sleeve in the recess.

Besitzt die Kontakthülse einen durchgehenden Längsschlitz, kann auf einfache Weise durch das Einschrauben der Kontakt- bzw. Befestigungsschraube ein Spreizen und damit ein lagesicherndes Festpressen der Kontakthülse in der Ausnehmung erreicht werden.If the contact sleeve has a continuous longitudinal slot, spreading and thus securing the position of the contact sleeve in the recess can be achieved in a simple manner by screwing in the contact or fastening screw.

Bei einer Kontakthülse mehreckigen Querschnitts erstreckt sich vorzugsweise der Längsschlitz entlang einer Ecke der Kontakthülse.In the case of a contact sleeve with a polygonal cross section, the longitudinal slot preferably extends along a corner of the contact sleeve.

Zur Einschraubbarkeit der Schraube in die Kontakthülse kann in einer Ausführungsform die Kontakt- bzw. Befestigungsschraube in die Kontakthülse selbstschneidend bzw. gewindefurchend einschraubbar sein. Dies ist besonders gut möglich, wenn die Innenwand der Kontakthülse und/oder die der Leiterbahn zugewandte Fläche des Kontaktflansches mit einer gut leitfähige, leicht plastisch verformbaren Schicht, wie z. B. einer Zinnschicht, versehen ist. Diese Schicht ist vorzugsweise aus einem Werkstoff, der zusätzlich einen niedrigen Übergangswiderstand besitzt und nicht oxidierend ist.To be able to screw the screw into the contact sleeve, in one embodiment the contact or fastening screw can be screwed into the contact sleeve in a self-tapping or thread-tapping manner. This is particularly possible if the inner wall of the contact sleeve and / or the surface of the contact flange facing the conductor track has a highly conductive, easily plastically deformable layer, such as, for. B. a tin layer is provided. This layer is preferably made of a material which additionally has a low contact resistance and is not oxidizing.

Durch die leichte plastische Verformbarkeit wird sowohl im Bereich des Schraubenschafts als auch im Bereich der flanschartigen Erweiterung eine Formanpassung der aneinanderliegenden Teile und damit eine hohe Kontaktsicherheit erreicht.Due to the easy plastic deformability, the shape of the adjoining one is adapted both in the area of the screw shank and in the area of the flange-like extension Parts and thus a high level of contact reliability achieved.

Eine weitere Ausführungsform für die Einschraubbarkeit der Schraube besteht darin, daß an der Innenwand der Kontakthülse zumindest ein radial nach innen gerichteter Vorsprung zum Eingriff in den Gewindegang der Kontakt- bzw. Befestigungsschraube ausgebildet ist. Um die Kontaktsicherheit zu erhalten, sind vorzugsweise mehrere Vorsprünge entsprechend der Steigung des Gewindegangs der Kontakt- bzw. Befestigungsschraube höhen- und seitensetzt ausgebildet.A further embodiment for the screwability of the screw consists in that at least one radially inwardly directed projection for engaging in the thread of the contact or fastening screw is formed on the inner wall of the contact sleeve. In order to maintain the contact reliability, a plurality of projections are preferably formed in accordance with the pitch and pitch of the thread of the contact or fastening screw.

Zur Sicherung der Kontakthülse in der Ausnehmung gegen Verdrehen um die Längsachse und/oder gegen axiales Verschieben kann die Kontakthülse mit Kraft- und/oder Reib- und/oder Formschluß in die Ausnehmung einsetzbar sein. Dazu kann die Kontakthülse an ihrer äußeren Mantelfläche mit einer Aufrauhung versehen sein, die z. B. durch eine Rändelung gebildet ist.To secure the contact sleeve in the recess against rotation about the longitudinal axis and / or against axial displacement, the contact sleeve can be inserted into the recess with force and / or friction and / or positive locking. For this purpose, the contact sleeve can be provided on its outer lateral surface with a roughening which, for. B. is formed by knurling.

Eine andere Möglichkeit besteht darin, daß die Kontakthülse einen von ihrer äußeren Mantelfläche hervorstehenden Vorsprung aufweist.Another possibility is that the contact sleeve has a projection protruding from its outer surface.

Auch kann die Kontakthülse einen von ihrer äußeren Mantelfläche abstehenden federnden Arm aufweisen.The contact sleeve can also have a resilient arm projecting from its outer lateral surface.

Weiterhin kann die Kontaktfläche an ihrer äußeren Mantelfläche eine Öffnung aufweisen, in die ein entsprechender von der Innenwand der Ausnehmung hervorstehender Ansatz eingreifbar ist.Furthermore, the contact surface can have an opening on its outer lateral surface, into which an appropriate extension projecting from the inner wall of the recess can be engaged.

Zum Anschluß des Meßwerkes kann die Kontakthülse eine Kontaktfahne aufweisen. Ist dabei die Kontaktfahne durch Herausbiegen eines teilausgestanzten Wandabschnitts aus der Mantelfläche der Kontakthülse gebildet, so ist für die Kontaktfahne kein zusätzlicher Materialbedarf erforderlich.The contact sleeve can have a contact tab for connecting the measuring mechanism. Is the contact tab by bending a partially punched out wall section from the Formed outer surface of the contact sleeve, no additional material is required for the contact tab.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben. Es zeigen:

Fig. 1
eine Seitenansicht eines Meßinstruments im Teilschnitt.
Fig. 2
eine Draufsicht des Meßinstruments nach Fig. 1.
Fig. 3
eine Perspektivansicht eines zweiten Meßinstruments.
Fig. 4
eine Seitenansicht eines ersten Ausführungsbeispiels einer Kontakthülse.
Fig. 5
eine Draufsicht der Kontakthülse nach Fig. 4.
Fig. 6
eine Seitenansicht eines zweiten Ausführungsbeispiels einer Kontakthülse.
Fig. 7
eine Draufsicht der Kontakthülse nach Fig. 6.
Fig. 8
eine Schnittansicht eines ersten Ausführungsbeispiels der Kontaktierung einer Kontakthülse mit einer Leiterplatte.
Fig. 9
eine Schnittansicht eines ersten Ausführungsbeispiels der Kontaktierung einer Kontakthülse mit einer Leiterplatte.
Fig. 10
eine Schnittansicht eines ersten Ausführungsbeispiels der Kontaktierung einer Kontakthülse mit einer Leiterplatte.
Embodiments of the invention are shown in the drawing and are described in more detail below. Show it:
Fig. 1
a side view of a measuring instrument in partial section.
Fig. 2
2 shows a plan view of the measuring instrument according to FIG. 1.
Fig. 3
a perspective view of a second measuring instrument.
Fig. 4
a side view of a first embodiment of a contact sleeve.
Fig. 5
4 shows a top view of the contact sleeve according to FIG. 4.
Fig. 6
a side view of a second embodiment of a contact sleeve.
Fig. 7
6 shows a top view of the contact sleeve according to FIG. 6.
Fig. 8
a sectional view of a first embodiment of contacting a contact sleeve with a circuit board.
Fig. 9
a sectional view of a first embodiment of contacting a contact sleeve with a circuit board.
Fig. 10
a sectional view of a first embodiment of contacting a contact sleeve with a circuit board.

Das in den Fig. 1, 2 und 3 dargestellte Meßinstrument ist ein Meßwerk mit einem Wicklungen 4 tragenden Wicklungsträger 1 mit seitlich dazu angeordneten Trägerarmen 2 zur Befestigung einer Leiterplatte sowie gegebenenfalls auch zur Befestigung des Meßinstruments an einen Träger.The measuring instrument shown in FIGS. 1, 2 and 3 is a measuring mechanism with a winding carrier 1 carrying windings 4 with support arms 2 arranged laterally thereto for fastening a printed circuit board and optionally also for fastening the measuring instrument to a carrier.

Innerhalb der Wicklungen 4 ist ein nicht dargestellter Dauermagnet in Abhängigkeit von der Bestromung der Wicklungen drehbar gelagert, von dem eine Zeigerachse 5 nach außerhalb der Wicklungen ragt. In den Trägerarmen 2 sind axial zur Zeigerachse 5 durchgehende Ausnehmungen 6 bzw. 6′ ausgebilet, in denen Kontakthülsen 7 bzw. 7′ eingesetzt sind.Die Kontakthülsen 7 und 7′ weisen seitlich hervorstehende Kontaktfahnen 8 auf, mit denen die Wicklungsenden 9 verbunden sind.A permanent magnet, not shown, is rotatably mounted within the windings 4, depending on the current supply to the windings, from which a pointer axis 5 projects outside the windings. In the support arms 2 are axially to the pointer axis 5 through recesses 6 and 6 ', in which contact sleeves 7 and 7' are inserted. The contact sleeves 7 and 7 'have laterally projecting contact tabs 8, with which the winding ends 9 are connected.

An ihren beiden Enden sind die Kontakthülsen 7 und 7′ mit flanschartig nach außen gerichteten Lappen 10 versehen, die sich etwa radial entlang des stirnseitigen Mündungsbereichs der Ausnehmungen 6 und 6′ erstrecken.At both ends, the contact sleeves 7 and 7 'are provided with flange-like outwardly directed tabs 10, which extend approximately radially along the end region of the recesses 6 and 6'.

Wie in den Fig. 8 bis 10 zu sehen ist, ist auf die Stirnseite der Trägerarme 2 eine Leiterplatte 11, 11′ bzw. 11˝ aufgelegt und durch eine Befestigungsschraube 12 befestigt. Diese Befestigungsschraube 12 durchragt eine Ausnehmung 13 in der Leiterplatte 11, 11′ bzw. 11˝ und ist mit ihrem Schaft 14 in die Kontakthülse 7′ eingeschraubt. Dabei ist die Befestigungsschraube 12 eine selbstschneidende Schraube, die mit ihrem Gewindegang in die Innenwand der Kontakthülse 7′ einschneidet. Mit ihrem Schraubenkopf 15 preßt die Befestigungsschraube 12 die Leiterplatte 11, 11′ bzw. 11˝ über die zwischen Trägerarm 2 und Leiterplatte 11, 11′ bzw. 11˝ sich erstreckenden Lappen 10 der Kontakthülse 7′ auf den die Ausnehmung 6 umgebenden stirnseitigen Mündungsbereich des Trägerarms 2.As can be seen in FIGS. 8 to 10, a circuit board 11, 11 'or 11' is placed on the end face of the support arms 2 and fastened by a fastening screw 12. This fastening screw 12 extends through a recess 13 in the circuit board 11, 11 'and 11˝ and is screwed with its shaft 14 into the contact sleeve 7'. The fastening screw 12 is a self-tapping screw that cuts with its thread into the inner wall of the contact sleeve 7 '. With its screw head 15, the fastening screw 12 presses the printed circuit board 11, 11 'or 11' over the lugs 10 of the contact sleeve 7 'which extend between the support arm 2 and the printed circuit board 11, 11' and 11 ', onto the front mouth region of the recess 6 surrounding the recess 6 Support arm 2.

In Fig. 9 ist die Leiterplatte 11′ eine flexible Leiterplatte, zwischen der und den Lappen 10 noch eine Stützplatte 16 angeordnet ist.In Fig. 9 the circuit board 11 'is a flexible circuit board, between which and the tab 10 a support plate 16 is arranged.

In den Fig. 8 und 9 ist der kupferkaschierte Leiterbahnbereich 17 der Leiterplatten 11 und 11′ auf der dem Schraubenkopf 15 zugewandten Seite angeordnet. Der Schraubenkopf 15 liegt dabei über eine auf dem Leiterbahnbereich 17 aufliegende Kontaktlochscheibe 18 und eine Federscheibe 19 auf dem Leiterbahnbereich 17 auf. Über diese Scheiben 18 und 19 sowie die aus elektrisch leitendem Werkstoff bestehende gleichzeitig als Kontaktschraube dienende Befestigungsschraube 12 ist der Leiterbahnbereich 17 leitend mit der Kontakthülse 7′ verbunden.8 and 9, the copper-clad conductor area 17 of the circuit boards 11 and 11 'is arranged on the side facing the screw head 15. The screw head 15 lies on a contact plate 18 resting on the conductor track region 17 and a spring washer 19 on the conductor track region 17. Via these disks 18 and 19 and the fastening screw 12, which also consists of electrically conductive material and also serves as a contact screw, the conductor track region 17 is conductively connected to the contact sleeve 7 '.

In Fig. 10 ist der Leiterbahnbereich 17 auf der dem Schraubenkopf 15 abgewandten Seite der Leiterplatte 11˝ angeordnet und liegt direkt auf den Lappen 10 der Kontakthülse 7′ auf. Die elektrisch leitende Verbindung vom Leiterbahnbereich zur Kontakthülse 7′ erfolgt dabei direkt.In Fig. 10, the conductor track region 17 is arranged on the side of the printed circuit board 11˝ facing away from the screw head 15 and lies directly on the tab 10 of the contact sleeve 7 '. The electrically conductive connection from the conductor track area to the contact sleeve 7 'takes place directly.

In den Fig. 4 und 5 sowie 6 und 7 sind zwei Ausführungsformen der Kontakthülsen 7 und 7′ dargestellt.4 and 5 and 6 and 7, two embodiments of the contact sleeves 7 and 7 'are shown.

Die in den Fig. 4 und 5 dargestellte Kontakthülse 7′, die für das Meßinstrument gemäß Fig. 3 und die Ausführungsbeispiele der Figuren 8 bis 10 vorgesehen ist, besitzt einen quadratischen Querschnitt und entlang ihrer einen Ecke einen Längsschlitz 20. Diese Kontakthülse 7′ ist zum Einsetzen in eine Ausnehmung 6′ entsprechenden quadratischen Querschnitts vorgesehen. Dabei wird die Kontakthülse 7′in dem dargestellten Zustand mit am unteren Ende axial gerichteter Lappen 10 in die Ausnehmung 6′ eingeführt und anschließend diese unteren Lappen 10 entsprechend der oberen Lappen etwa rechtwinklig abgebogen. Damit bilden sowohl die am oberen als auch die am unteren Ende der Kontakthülse ausgebildeten Lappen 10 Anschläge, die an den sich etwa radial entlang der beidseitigen stirnseitigen Mündungsbereiche der Ausnehmung 6′ sich erstreckenden Flächen des Trägerarms anliegen.The contact sleeve 7 'shown in FIGS. 4 and 5, which is provided for the measuring instrument according to FIG. 3 and the exemplary embodiments of FIGS. 8 to 10, has a square cross section and a longitudinal slot 20 along one corner. This contact sleeve 7' provided for insertion into a recess 6 'corresponding square cross section. The contact sleeve 7 'is inserted in the state shown with axially directed tab 10 in the recess 6' and then this lower tab 10 is bent approximately at right angles to the upper tab. So that form both the tabs formed on the upper and also on the lower end of the contact sleeve 10, which abut against the surfaces of the support arm which extend approximately radially along the two-sided front mouth regions of the recess 6 '.

Zur weiteren Sicherung der Kontakthülse 7′ in der Ausnehmung 6′ ist die äußere Mantelfläche der Kontakthülse 7′ in ihren beiden Endbereichen mit einer Rändelung 21 versehen, so daß die Kontakthülse 7′ bei eingeschraubter die Kontakthülse 7′ spreizender Befestigungsschraube 12 mit Kraft- und Reibschluß an der Wand der Ausnehmung 6′ in Anlage ist. Die Befestigungsschraube 12 wird dabei selbstschneidend in die Kontakthülse 7′ eingeschraubt.To further secure the contact sleeve 7 'in the recess 6', the outer lateral surface of the contact sleeve 7 'is provided in its two end regions with a knurling 21, so that the contact sleeve 7' when screwed in the contact sleeve 7 'spreading fastening screw 12 with friction and friction on the wall of the recess 6 'is in contact. The fastening screw 12 is screwed self-tapping into the contact sleeve 7 '.

Die in den Fig. 6 und 7 dargestellte Kontakthülse 7, die für das Meßinstrument gemäß der Fig. 1 und 2 vorgesehen ist, besitzt entsprechend der ihr zugeordneten Ausnehmung 6 einen runden Querschnitt mit einem Längsschlitz 20. Das Einsetzen und axiale Sichern der Kontakthülse 7 durch das Umbiegen der Lappen 10 erfolgt wie beim Ausführungsbeispiel gemäß der Fig. 4 und 5. Die zusätzliche Sicherung der Kontakthülse 7 in der Ausnehmung 6 erfolgt durch mittels Ausklinkungen hergestellten von der äußeren Mantelfläche der Kontakthülse 7 hervorstehenden federnden Armen 21, die sich mit ihrem freien Ende in die Wand der Ausnehmung 6 einkrallen können.The contact sleeve 7 shown in FIGS. 6 and 7, which is provided for the measuring instrument according to FIGS. 1 and 2, has a round cross-section with a longitudinal slot 20 corresponding to the recess 6 assigned to it. The insertion and axial securing of the contact sleeve 7 by the flaps 10 are bent as in the exemplary embodiment according to FIGS. 4 and 5. The additional securing of the contact sleeve 7 in the recess 6 is carried out by means of notches produced by resilient arms 21 protruding from the outer lateral surface of the contact sleeve 7, which extend with their free end can claw into the wall of the recess 6.

Beide Ausführungsbeispiele der Kontakthülsen 7 und 7′ sind durch Stanzen aus Blech hergestellt und besitzen seitlich hervorstehende Kontaktfahnen 8. Dabei ist bei dem in den Fig. 6 und 7 dargestellten Ausführungsbeispiel die Kontaktfahne 8 durch Herausbiegen eines teilausgestanzten Wandabschnitts aus der Mantelfläche der Kontakthülse 7 gebildet.Both embodiments of the contact sleeves 7 and 7 'are made by stamping from sheet metal and have laterally projecting contact tabs 8. In the embodiment shown in FIGS. 6 and 7, the contact tab 8 is formed by bending out a partially punched wall section from the outer surface of the contact sleeve 7.

Die Kontakthülse 7 besitzt weiterhin durch Eindrückungen hergestellte, radial nach innen gerichtete Vorsprünge 23, die entsprechend der Steigung des Gewindegangs der Befestigungsschraube 12 höhen- und seitenversetzt ausgebildet sind. Sie bilden dadurch ein Gewinde, in das die Befestigungsschraube 12 mit ihrem Gewinde einschraubbar ist. Die Lappen 10 der Kontakthülse 7 erstrecken sich, wie insbesondere in Fig. 1 zu sehen ist, unter einen spitzen Winkel zum stirnseitigen Mündungsbereich des Trägerarms, so daß sie im zusammengebauten Zustand mit federnder Vorspannung an der Leiterplatte 11 anliegen.The contact sleeve 7 furthermore has radially inwardly directed projections 23 which are produced by indentations and which are designed such that they are offset in height and laterally in accordance with the pitch of the thread of the fastening screw 12. As a result, they form a thread into which the fastening screw 12 can be screwed with its thread. The tabs 10 of the contact sleeve 7 extend, as can be seen in particular in FIG. 1, at an acute angle to the front mouth area of the support arm, so that they bear against the printed circuit board 11 in the assembled state with resilient bias.

Wie die Ausführungsbeispiele insbesondere in den Fig. 1 und 3 zeigen, sind Lappen 10 an beiden Enden der Kontakthülsen 7 bzw. 7′ angeordnet, so daß Leiterplatten 11, 11′ oder 11˝ wahlweise auf der Vorderseite oder auf der Rückseite des Meßwerks anordenbar sind.1 and 3, tabs 10 are arranged at both ends of the contact sleeves 7 and 7 ', so that printed circuit boards 11, 11' or 11 'can be arranged either on the front or on the back of the measuring mechanism .

Claims (24)

  1. Contact sleeve (7, 7′) for insertion into the cutout (6, 6′) of a housing component or carrier component of a measuring instrument, which is connected so as to be electrically conductive to the measuring instrument, and that via the contact sleeve a contact or fixing screw (12) is screwed into the cutout by means of which a conductor plate (11, 11′, 11˝) is pressed to abut a mouth area at the end of the cutout, and that a conducting track of the conductor plate is connectible to the contact sleeve so as to be electrically conductive, characterized in that the contact sleeve (7, 7′) has at its end facing towards the conductor plate (11, 11′, 11˝) a flangelike widening, which extends approximately radially outwards and which extends in the mouth area at the end of the cutout (6, 6′) between housing component or carrier component (2) and the conductor plate (11, 11′, 11˝) which is pressed against it.
  2. Contact sleeve according to claim 1, characterized in that the flangelike widening is formed by one or more flaps (10) which are oriented radially outward.
  3. Contact sleeve according to one of the above claims, characterized in that the contact screw (12) is pressed with its screw head (15), which widens radially relative to the screw shaft (14), against the conducting track area (17) located on the side of the conductor plate (11, 11′) which is facing away from the housing component or the carrier component (2).
  4. Contact sleeve according to claim 3, characterized in that a perforated contact disc (18) can be fitted between the screw head (15) and the conductor track area (17).
  5. Contact sleeve according to claim 4, characterized in that a spring washer (19) can be fitted between screw head (15) and perforated contact disc (18).
  6. Contact sleeve according to one of the above claims, characterized in that the cutout (6, 6′) is designed to be continuous, and the contact sleeve (7, 7′) is designed to extend through the entire cutout (6, 6′), and that flangelike widenings extend into both mouth areas at the end of the cutout (6, 6′).
  7. Contact sleeve according to one of the above claims, characterized in that the flangelike extension extends radially outwards at an acute angle to the mouth area at the end of the housing component or the carrier component (2).
  8. Contact sleeve according to one of the above claims, characterized in that the cutouts (6, 6′) and the contact sleeve (7, 7′) are cross-sectionally circular.
  9. Contact sleeve according to one of claims 1 to 7, characterized in that the cutout (6′) and the contact sleeve (7′) are cross-sectionally polygonal.
  10. Contact sleeve according to claim 9, characterized in that the cutout (6′) and the contact sleeve (7′) are cross-sectionally square.
  11. Contact sleeve according to one of the above claims, characterized in that the contact sleeve (7, 7′) comprises a continuous longitudinal slit (20).
  12. Contact sleeve according to one of claims 9 and 11, characterized in that the longitudinal slit (20) extends along one corner of the contact sleeve (7′).
  13. Contact sleeve according to one of the above claims, characterized in that the contact or fixing screw (12) is screwed into the contact sleeve (7′) in a self-tapping or thread-cutting manner.
  14. Contact sleeve according to one of the above claims, characterized in that the inside wall of the contact sleeve (7′) and/or the surface of the contact flange facing towards the conductor track (17) is provided with a well ducting and easily plastically deformed coating.
  15. Contact sleeve according to one of the above claims, characterized in that the inner wall of the contact sleeve (7) comprises at least one radially inward oriented protrusion (23) for engaging the thread of the contact screw or the fixing screw (12).
  16. Contact sleeve according to claim 15, characterized in that a plurality of protrusions (23) are offset in height or latitude to correspond with the rise of the thread of the contact screw or the fixing screw (12).
  17. Contact sleeve according to one of the above claims, characterized in that the contact sleeve (7, 7′) is insertible into the recess (6, 6′) with a power and/or friction and/or positive seal.
  18. Contact sleeve according to claim 17, characterized in that the contact sleeve (7′) is provided with a roughening on its outer casing surface.
  19. Contact sleeve according to claim 18, characterized in that the contact sleeve (7′) is provided with a knurl on its outer casing surface.
  20. Contact sleeve according to claim 17, characterized in that the contact sleeve comprises a protrusion from its outer casing surface.
  21. Contact sleeve according to claim 17, characterized in that the contact sleeve (7) comprises a springy arm (21) which protrudes from its outer casing surface.
  22. Contact sleeve according to claim 17, characterized in that the contact sleeve comprises on its outer casing surface an opening into which engages a respective extension which protrudes from the inside wall of the cutout.
  23. Contact sleeve according to one of the above claims, characterized in that the contact sleeve (7, 7′) comprises a contact lug (8) for connection to the measuring instrument.
  24. Contact sleeve according to one of the above claims, characterized in that the contact lug (8) is formed by bending out a partially punched-out wall section from the casing surface of the contact sleeve (7).
EP93110759A 1992-12-02 1993-07-06 Contact sleeve Expired - Lifetime EP0600153B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4240452 1992-12-02
DE4240452A DE4240452A1 (en) 1992-12-02 1992-12-02 Contact sleeve

Publications (2)

Publication Number Publication Date
EP0600153A1 EP0600153A1 (en) 1994-06-08
EP0600153B1 true EP0600153B1 (en) 1995-04-26

Family

ID=6474159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110759A Expired - Lifetime EP0600153B1 (en) 1992-12-02 1993-07-06 Contact sleeve

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US (1) US5697796A (en)
EP (1) EP0600153B1 (en)
DE (2) DE4240452A1 (en)

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Publication number Priority date Publication date Assignee Title
JP2001051163A (en) * 1999-08-05 2001-02-23 Yazaki Corp Fixing structure of optical connector
US6206726B1 (en) * 2000-02-17 2001-03-27 Yazaki North America, Inc. Tolerance accommodating mounting pad for junction box cover
AU2005262212A1 (en) * 2004-07-15 2006-01-19 Kaba Ilco Corp. Electrically conductive component suited for use in access control devices
DE102011017746A1 (en) * 2011-04-29 2012-10-31 Zf Friedrichshafen Ag Method for electrical and mechanical connection of transformer on printed circuit board to power clamp for supplying power to transformer, involves turning screw until main surface of contact of component contacts power clamp
DE102014201356A1 (en) * 2014-01-27 2015-07-30 Schaeffler Technologies AG & Co. KG Arrangement for attaching a terminal for an electrical machine to a circuit board for the power electronics
CN106817853A (en) * 2015-11-30 2017-06-09 鸿富锦精密电子(郑州)有限公司 Fixture
FR3070998A1 (en) * 2017-09-08 2019-03-15 Cogelec DOOR ACCESS TO A BUILDING

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Publication number Priority date Publication date Assignee Title
US2687862A (en) * 1949-11-12 1954-08-31 Illinois Tool Works Fastener
DE1137263B (en) * 1960-04-21 1962-09-27 Hirschmann Radiotechnik Connection element for cables with a tubular conductive core made of elastic material, especially for motor vehicle ignition systems
US3989333A (en) * 1975-12-18 1976-11-02 Arvin Industries, Inc. Cable television tap connector box
DE3607247A1 (en) * 1985-07-03 1987-01-08 Emhart Ind CAPACITOR CONNECTOR ARRANGEMENT
DE8613605U1 (en) * 1986-05-20 1988-07-07 Raible, Fritz, 7247 Sulz, De
US4802860A (en) * 1987-03-04 1989-02-07 Hirose Electric Co., Ltd. Surface mount type electrical connector
US4842552A (en) * 1988-03-04 1989-06-27 Amp Incorporated Tolerance forgiving boardlock
GB2247575B (en) * 1990-08-07 1994-08-17 Daiichi Denso Buhin Conducting connector device
DE4039625A1 (en) * 1990-12-12 1992-06-17 Vdo Schindling CONTACT SLEEVE FOR A MEASURING MECHANISM

Also Published As

Publication number Publication date
US5697796A (en) 1997-12-16
DE59300160D1 (en) 1995-06-01
DE4240452A1 (en) 1994-06-09
EP0600153A1 (en) 1994-06-08

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