EP1733459B1 - Pivot bearing with electrical continuity - Google Patents

Pivot bearing with electrical continuity Download PDF

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Publication number
EP1733459B1
EP1733459B1 EP05716370A EP05716370A EP1733459B1 EP 1733459 B1 EP1733459 B1 EP 1733459B1 EP 05716370 A EP05716370 A EP 05716370A EP 05716370 A EP05716370 A EP 05716370A EP 1733459 B1 EP1733459 B1 EP 1733459B1
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EP
European Patent Office
Prior art keywords
bearing
current path
bearing housing
contact
housing
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Not-in-force
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EP05716370A
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German (de)
French (fr)
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EP1733459A1 (en
Inventor
Olaf Bienert
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Poly Clip System GmbH and Co KG
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Poly Clip System GmbH and Co KG
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Publication of EP1733459A1 publication Critical patent/EP1733459A1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R35/00Flexible or turnable line connectors, i.e. the rotation angle being limited
    • H01R35/04Turnable line connectors with limited rotation angle with frictional contact members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00Rotary current collectors, distributors or interrupters
    • H01R39/64Devices for uninterrupted current collection
    • H01R39/643Devices for uninterrupted current collection through ball or roller bearing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00Rotary current collectors, distributors or interrupters
    • H01R39/64Devices for uninterrupted current collection

Definitions

  • the invention relates to a rotary bearing with current feedthrough, in particular for a sausage clipper according to the preamble of claim 1.
  • an electrical rotary contact which includes a support disc with a bore, one contact disc on each side of the support disc with coaxial with the bore of the support disc arranged further holes, a cable connection piece with an electrically conductive pin, wherein the pin with the interposition of an insulating ring by an electric conductive ring and through the holes of the support plate and the contact discs is inserted, and a resilient element for pressing the electrically conductive ring against the one contact disc and the electrical connection between the pin and the other contact disc.
  • German Patent 41 25 949 an apparatus for forming loops on a sausage sealing machine.
  • the bearing housing and the bearing axis are movable relative to each other.
  • the bearing axis can be pulled out of the bearing housing readily to exchange, for example, different held on the bearing axis machine parts against each other.
  • the current path has an inserted in a through hole of the bearing axis Stromwegbolzen of electrically conductive material which protrudes at its one end from the bearing axis and forms the outer terminal of the bearing axis, and has at its other front end a touch contact area, with a touch contact area the bearing housing is electrically conductively connected to form the contact contact portion of the current path.
  • the contact contact portion or the contact contact region of the Stromwegbolzens by means of a spring element, preferably a helical compression spring in the direction of the contact contact region of the bearing housing is resiliently biased, wherein the spring element on the end face of the fixed in the axial position in the direction of the contact contact region of the bearing housing bearing axis, preferably electrically insulated with the interposition of a sliding ring, preferably supported by an annular insulating layer.
  • the slip ring prevents damage to the annular insulating layer by the spring element.
  • the current path between the. Bearing axis and the bearing housing a has at least one rotational movement between the bearing shaft and the bearing housing without loss of electrical conductivity of the current path enabling contact portion, which consists of a bearing housing side and a bearing axis side. Contact contact area is composed.
  • the contact contact portion is formed as a sliding contact.
  • the bearing axis side and / or bearing housing side touch contact area in the contact direction axially elastic can be prestressed.
  • the current path runs coaxially to the central longitudinal axis of the bearing axis, then it is safely protected in the region of the pivot bearing against damage or manipulation from the outside.
  • the cable used in the prior art has the disadvantage that it can be damaged by sharp-edged objects or unwillingness, so that in addition to the risk of injury to an operator who can touch the exposed power lines, there is the possibility of power interruption. If, on the other hand, the current path is formed by preferably rigid machine elements, then such damage, as can occur in a relatively soft cable, does not occur.
  • the contact contact region of the current path bolt has a contact surface which is larger than the cross-sectional area of the current path bolt.
  • the Stromwegbolzen in the through hole of the bearing axis in a shell preferably in the form of a sleeve of electrically insulating material is added.
  • the outer terminal of the Stromwegbolzens In order to prevent a short circuit on the outer terminal of Stromwegbolzens, which may be formed for example by a plug-in lug, which is fixed by nuts on the Stromwegbolzen, the outer terminal of the Stromwegbolzens with respect to the bearing axis, preferably be electrically insulated by means of an annular insulating layer.
  • the contact contact region of the bearing housing lying opposite the contact contact region of the bearing axle can advantageously be formed from a ring held on the bearing housing made of an electrically conductive material, whose contact surface preferably corresponds at least in its outer dimensions to the contact surface of the current path bolt.
  • the bearing housing in the rotational axis direction has a first and a second bearing housing portion, wherein the second bearing housing portion is provided in the region of the outer terminal of the bearing housing and made of an electrically insulating material, preferably a POM Plastic exists.
  • the second bearing housing section can receive the contact area of the current path.
  • inventive pivot bearing 10 has, as essential components on a bearing axis 20 and a rotary bearing housing 40.
  • the orientation of the pivot bearing 10 is vertical, i. the central longitudinal axis ML of the bearing axis 20, which coincides with the pivot bearing axis, extends vertically.
  • the pivot bearing 10 according to the invention is not limited to this orientation, but it can also be used in a horizontal orientation or in an obliquely to the horizontal alignment.
  • the bearing shaft 20 has a circular cross-section and is made of an electrically conductive material, such as stainless steel.
  • a holder H for a to be rotated or to be pivoted, not shown machine assembly is arranged, which may be, for example, the outlet conveyor belt of a clip machine for sausages.
  • a shoulder 20b is provided in the region of the end 20a of the bearing axis 20.
  • the holder H in the region of the front end 20a of the bearing shaft 20 is welded thereto.
  • the bearing housing 40 is attached to a machine frame, also not shown, such as a clip machine by means of screws S1.
  • the bearing housing 40 is divided in two in the axial direction into a first bearing housing section 42 and a second bearing housing section 44, wherein the first housing section 42 is arranged above the second housing section 44.
  • the two housing sections 42, 44 are by means of a centering pin 46th centered against each other and releasably connected by one or more screws S2.
  • first bearing housing portion 42 also an electrically conductive material, such as stainless steel is used.
  • the second housing portion 44 is made of an electrically non-conductive material, such as a POM plastic.
  • the second housing section 44 On its side 44a pointing to the first housing section 42, the second housing section 44 is provided with a circular recess 44b, whose center longitudinal axis, not designated, coincides with the central longitudinal axis ML of the bearing axis 20.
  • the bearing shaft 20 is rotatably mounted in the first bearing housing portion 42 by means of two bearing bushes L1 and L2 made of brass.
  • the upper bearing bushing L1 in this case forms a thrust bearing
  • the lower bearing bushing L2 represents a radial bearing, which is supported against an annular shoulder 42a in the region of the lower frontal end 42b of the first housing section 42.
  • the bearing axis 20 is fixed axially in the direction of its lower end face 20c relative to the bearing housing 40 in position.
  • the bearing shaft 20 is easily removable upwards, i. in one and the same bearing housing 40 different bearing axles 20 can be easily inserted with attached different machine parts, which is automatically produced by the inventive power supply of the current each time without any additional measures.
  • the current path SW runs.
  • the current path SW extends from an upper bearing axis-side outer terminal 22 which is made of an electrically conductive material such as nickel-plated copper and the one Aufsteck-terminal lug 22a has, in a manner described in more detail below by the pivot bearing 10 through to a lower bearing housing side outer terminal or outer terminal 48, which also consists of an electrically conductive material such as nickel-plated copper and also has a Aufsteck-terminal lug 48a.
  • the current flow direction can take place both from the upper outer connection element 22 to the lower outer connection element 48 and vice versa.
  • the current path SW furthermore has a Stromwegbolzen 24, which is arranged in a through hole 20 d of the bearing axis 20.
  • a Stromwegbolzen 24 is arranged in a through hole 20 d of the bearing axis 20.
  • the Stromwegbolzen 24 in the region of the through hole 20d of the bearing shaft 20 is completely enclosed by a shell 26 made of an electrically insulating material, such as a suitable plastic for this purpose.
  • the shell 26 may be formed, for example, as a sleeve which is pushed onto the Stromwegbolzen 24 before insertion of the Stromwegbolzens 24 in the through hole 20d of the bearing shaft 20.
  • the Stromwegbolzen 24 via the upper end face 20a of the bearing axis 20 via.
  • the Stromwegbolzen 24 is provided with a threaded portion 24 a.
  • the bearing axis-side outer connection element 22, which has an eye 22b for this purpose, is pushed onto this threaded section 24a and fixed there by means of two nuts M1, M2, which receive the eyelet 22a of the outer connection element 22 between them.
  • the lower nut M2 is supported with the interposition of an upper insulating layer 28 of electrically non-conductive material, wherein the insulating layer 28, the insulating sleeve 26 to the Stromwegbolzen 24 at the outlet of the Stromwegbolzens 24 from the Through hole 20d overlaps.
  • the upper nut M1 can be a cap nut.
  • the Stromwegbolzen 24 is also on the lower end-side end 20c of the bearing axis 20 and ends in a head 24b, preferably circular cross-sectional area is greater than the preferably circular cross-sectional area of the Stromwegbolzens 24.
  • the pointing in the direction of the lower end of the pivot bearing 10 surface of the head 24b forms a touch contact area in the form of a sliding contact surface, which is electrically connected to a bearing housing side contact contact area for establishing an electrical connection between the Stromwegbolzen 24 and the bearing housing side outer terminal member 48.
  • the contact area of contact of the bearing housing 40 is formed by a made of electrically conductive material, such as stainless steel contact ring 50 which is fixed by means of a screw S3 to the bearing housing 40 in the interior of the recess 44b of the second housing portion 44.
  • the facing in the direction of Stromwegbolzens 24 surface of the contact ring 50 forms the bearing housing side contact contact area, which is also provided as a sliding contact surface.
  • the two sliding contact surfaces of the head 24a and the contact ring 50 are plane-parallel to each other and have approximately the same outer dimensions. It should be noted that the touch contact portion of the current path pin 24 and the contact ring 50 constitute the touch contact portion of the current path SW.
  • the bearing housing-side external connection element 48 which has an eyelet 48b for this purpose, is pushed onto the screw S3 and secured by means of a lock nut 52 on the screw S3 outside the second housing section 44.
  • the head 24b of the Stromwegbolzens 24 urged by a compression spring 30 against the contact ring 50 of the bearing housing 40.
  • the compression spring 30 is supported via a slide ring 32 with the interposition of a lower annular insulating layer 34 made of an electrically insulating material at the lower front end 20c of the bearing shaft 20 from.
  • the lower annular insulating layer 34 overlaps the insulating sheath 26 around the current path pin 24 at the exit of the current path pin 24 from the through-hole 20d.

Description

Die Erfindung betrifft ein Drehlager mit Stromdurchführung, insbesondere für eine Wurstclipmaschine gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a rotary bearing with current feedthrough, in particular for a sausage clipper according to the preamble of claim 1.

Bei komplexen Maschinen ist es häufig notwendig, elektrische Energie zu weit von der Stromquelle bzw. dem Stromanschluss der Maschine entfernt liegende Bereiche zu führen. Dies erfolgt in der Praxis weitestgehend durch den Einsatz von Kabeln. Jedoch können diese Kabel, wenn sie entlang der Außenseite der Maschine geführt werden, den Arbeitsbereich behindern. Des weiteren können sie bei Handhabungsvorgängen im Bereich der Maschine beschädigt werden und damit eine Gefahr für die Wartungs- und/oder Bedienungspersonen darstellen.In complex machines, it is often necessary to carry electrical energy too far away from the power source or the power connector of the machine areas. This is done in practice largely by the use of cables. However, these cables, when routed along the outside of the machine, can obstruct the work area. Furthermore, they can be damaged during handling operations in the area of the machine and thus pose a danger to the maintenance and / or operators.

So ist es beispielsweise bei einer Wurstclipmaschine notwendig, den Elektromotor für ein Auslaufförderband über ein Kabel mit dem Stromanschluss der Maschine zu verbinden. Hierbei wird das Kabel relativ lose verlegt, da das Auslaufförderband schwenkbar bzw. drehbar an dem Maschinengehäuse der Clipmaschine gelagert ist, um den Zugriff zu der Verdränger- und Clipeinheit der Clipmaschine zu ermöglichen.For example, in a sausage clipper, it is necessary to connect the electric motor for a discharge conveyor belt to the power connection of the machine via a cable. Here, the cable is laid relatively loose, since the outlet conveyor belt pivotally or rotatably on the Machine housing of the clip machine is mounted to allow access to the displacement and clip unit of the clip machine.

Aus der deutschen Offenlegungsschrift 199 12 000 geht ein Drehlager der Eingangs genannten Art hervor, das ein Lagergehäuse aus elektrisch leitfähigem Material sowie eine in dem Lagergehäuse drehbar gelagerte Lagerachse aufweist. In dem Lagergehäuse sowie der Lagerachse ist ein koaxial zu der Mittellängsachse des Drehlagers angeordneter Stromwegbolzen vorgesehen, der an seinem einen Ende eine Anschlussfahne und an seinem anderen Ende einen Kontaktierungsstift aufweist. Dieses bekannte Drehlager ist als Steckverbinder für ein Mobiltelefon vorgesehen. Zum Trennen des Lagergehäuses von der Lagerachse muss das gesamte Drehlager in seine Einzelteile zerlegt werden.From the German Patent Application 199 12 000 is a pivot bearing of the aforementioned type, which has a bearing housing made of electrically conductive material and a rotatably mounted in the bearing housing bearing axis. In the bearing housing and the bearing axis a coaxial with the central longitudinal axis of the pivot bearing arranged Stromwegbolzen is provided, which has at its one end a terminal lug and at its other end a Kontaktierungsstift. This known pivot bearing is provided as a connector for a mobile phone. To separate the bearing housing from the bearing axis, the entire pivot bearing must be broken down into its individual parts.

Aus dem deutschen Patent 20 47 456 geht ein Anschlussstück zur elektrisch leitenden Befestigung eines Anschlusskabels an einem Gegenstück mit einem mit dem Anschlusskabel verbundenen Kontaktstift und einem in der Umgebung des Kontaktstifts auf dem Gegenstück aufliegenden Permanentmagneten hervor. Hierbei ist der Kontaktstift in einer mit dem Permanentmagneten verbundenen Halterung drehbar und in axialer Richtung verschiebbar gelagert, wobei zwischen der Halterung und dem Kontaktstift eine diesen gegen das Gegenstück drückende Feder angeordnet ist.From the German Patent 20 47 456 goes out a connector for electrically conductive attachment of a connecting cable to a counterpart with a connected to the connecting cable pin and a resting in the vicinity of the contact pin on the counterpart permanent magnet. In this case, the contact pin is rotatably mounted in a holder connected to the permanent magnet and slidably mounted in the axial direction, wherein between the holder and the contact pin a this pressing against the counterpart spring is arranged.

Weiterhin geht aus der deutschen Offenlegungsschrift 25 38 766 ein elektrischer Drehkontakt hervor, der enthält: eine Tragscheibe mit einer Bohrung, je eine Kontaktscheibe auf jeder Seite der Tragscheibe mit achsgleich zur Bohrung der Tragscheibe angeordneten weiteren Bohrungen, ein Kabelanschlussstück mit einem elektrisch leitenden Zapfen, wobei der Zapfen unter Zwischenschaltung eines Isolierrings durch einen elektrisch leitenden Ring sowie durch die Bohrungen der Tragscheibe und der Kontaktscheiben hindurch gesteckt ist, und ein federndes Element zum Anpressen des elektrisch leitenden Rings gegen die eine Kontaktscheibe und zur elektrischen Verbindung zwischen dem Zapfen sowie der anderen Kontaktscheibe.Furthermore, goes from the German Offenlegungsschrift 25 38 766 an electrical rotary contact, which includes a support disc with a bore, one contact disc on each side of the support disc with coaxial with the bore of the support disc arranged further holes, a cable connection piece with an electrically conductive pin, wherein the pin with the interposition of an insulating ring by an electric conductive ring and through the holes of the support plate and the contact discs is inserted, and a resilient element for pressing the electrically conductive ring against the one contact disc and the electrical connection between the pin and the other contact disc.

Aus dem deutschen Gebrauchsmuster 297 17 068 ist eine Tür mit einer Zarge und einem Türblatt entnehmbar, welche durch eines oder mehrere Türbänder gelenkig mit der Zarge verbunden ist.From the German Utility Model 297 17 068 a door with a frame and a door leaf is removable, which is connected by one or more hinges hinged to the frame.

Schließlich geht noch aus der deutschen Patentschrift 41 25 949 eine Vorrichtung zum Bilden von Schlaufen an einer Wurstverschließmaschine hervor.Finally, it goes out of the German Patent 41 25 949 an apparatus for forming loops on a sausage sealing machine.

Es ist Aufgabe der vorliegenden Erfindung, ein Drehlager der Eingangs genannten Art zu schaffen, welches bei einem einfachen Aufbau und einer sicheren Stromführung eine leichte Montage bzw. Demontage der Lagerachse von dem Lagergehäuse ermöglicht.It is an object of the present invention to provide a pivot bearing of the type mentioned, which allows easy mounting and dismounting of the bearing axis of the bearing housing with a simple structure and a secure power management.

Die vorstehende Aufgaben wird durch die Merkmale des Anspruchs 1 gelöst. In den sich daran anschließenden Unteransprüchen 2 bis 15 finden sich vorteilhafte Ausgestaltungen hierzu.The above objects are achieved by the features of claim 1. In the subsequent sub-claims 2 to 15 are advantageous embodiments of this.

Durch Vorsehen wenigstens eines durch das Lagergehäuse und die Lagerachse führenden Stromweges, welcher zumindest gegenüber den elektrisch leitenden Abschnitten der Lagerachse und des Lagergehäuses elektrisch isoliert ist und welcher wenigstens einen jeweils in dem Lagergehäuse sowie der Lagerachse vorgesehenen Außenanschluss aufweist, besteht die Möglichkeit, auf einfache Weise trotz der Dreh-Schwenkfunktion des Drehlagers einen Stromweg durch das Drehlager vorzusehen, ohne dass Kabel an der Außenseite des Drehlagers geführt werden müssen. Da der Stromweg durch das Lagergehäuse und die Lagerachse führt, ist darüber hinaus eine Beschädigung bzw. Unterbrechung des Stromweges durch Einflüsse von außen nicht möglich, so dass die über das Drehlager verlaufende elektrische Versorgung eines an den Stromweg angeschlossenen Elektromotors sichergestellt ist.By providing at least one current path which leads through the bearing housing and the bearing axis and which is electrically insulated at least from the electrically conductive sections of the bearing axis and the bearing housing and which has at least one outer connection provided in each case in the bearing housing and the bearing axis, it is possible in a simple manner despite the rotational pivot function of the pivot bearing to provide a current path through the pivot bearing, without cables must be performed on the outside of the pivot bearing. In addition, since the current path leads through the bearing housing and the bearing axis, damage or interruption of the current path due to external influences is not possible, such that the electrical supply of an electric motor connected to the current path is ensured via the rotary bearing.

Das Lagergehäuse und die Lagerachse sind relativ zueinander bewegbar. Darüber hinaus kann die Lagerachse aus dem Lagergehäuse ohne weiteres herausgezogen werden, um beispielsweise unterschiedliche an der Lagerachse gehaltene Maschinenteile gegeneinander auszutauschen. Dabei weist der Stromweg einen in einer Durchgangsbohrung der Lagerachse eingesetzten Stromwegbolzen aus elektrisch leitendem Material auf, der an seinem einen stirnseitigen Ende aus der Lagerachse hervorsteht und den Außenanschluss der Lagerachse bildet, und der an seinem anderen stirnseitigen Ende einen Berührungskontaktbereich aufweist, der mit einem Berührungskontaktbereich des Lagergehäuses zur Bildung des Berührungskontaktabschnitts des Stromweges elektrisch leitend in Verbindung steht.The bearing housing and the bearing axis are movable relative to each other. In addition, the bearing axis can be pulled out of the bearing housing readily to exchange, for example, different held on the bearing axis machine parts against each other. In this case, the current path has an inserted in a through hole of the bearing axis Stromwegbolzen of electrically conductive material which protrudes at its one end from the bearing axis and forms the outer terminal of the bearing axis, and has at its other front end a touch contact area, with a touch contact area the bearing housing is electrically conductively connected to form the contact contact portion of the current path.

Um die Funktion des Stromweges durch das Drehlager auch bei Auftreten von Fertigungstoleranzen innerhalb der einzelnen Bauteile des Drehlagers gewährleisten zu können, ist es weiterhin vorgesehen, dass der Berührungskontaktabschnitt bzw. der Berührungskontaktbereich des Stromwegbolzens mittels eines Federelements, vorzugsweise einer Schraubendruckfeder in Richtung des Berührungskontaktbereichs des Lagergehäuses elastisch vorgespannt ist, wobei sich das Federelement an der Stirnseite der in der axialen Lage in Richtung des Berührungskontaktbereichs des Lagergehäuses festgelegten Lagerachse, vorzugsweise unter Zwischenschaltung eines Gleitrings elektrisch isoliert, vorzugsweise durch eine ringförmige Isolierlage abstützt. Der Gleitring verhindert dabei eine Beschädigung der ringförmigen Isolierlage durch das Federelement.In order to ensure the function of the current path through the rotary bearing even when manufacturing tolerances occur within the individual components of the pivot bearing, it is further provided that the contact contact portion or the contact contact region of the Stromwegbolzens by means of a spring element, preferably a helical compression spring in the direction of the contact contact region of the bearing housing is resiliently biased, wherein the spring element on the end face of the fixed in the axial position in the direction of the contact contact region of the bearing housing bearing axis, preferably electrically insulated with the interposition of a sliding ring, preferably supported by an annular insulating layer. The slip ring prevents damage to the annular insulating layer by the spring element.

Um hierbei eine sichere Stromverbindung ohne Einsatz von Kabeln und dgl. bereitstellen zu können, ist es weiterhin von Vorteil, wenn der Stromweg zwischen der. Lagerachse und dem Lagergehäuse einen zumindest eine Drehbewegung zwischen der Lagerachse und dem Lagergehäuse ohne Verlust der elektrischen Leitfähigkeit des Stromweges ermöglichenden Berührungskontaktabschnitt besitzt, der sich aus einem lagergehäuseseitigen und einem lagerachsenseitigen. Berührungskontaktbereich zusammensetzt. Vorteilhafterweise ist der Berührungskontaktabschnitt als ein Schleifkontakt ausgebildet.In order to provide a secure power connection without the use of cables and the like., It is also advantageous if the current path between the. Bearing axis and the bearing housing a has at least one rotational movement between the bearing shaft and the bearing housing without loss of electrical conductivity of the current path enabling contact portion, which consists of a bearing housing side and a bearing axis side. Contact contact area is composed. Advantageously, the contact contact portion is formed as a sliding contact.

Um die elektrisch leitende Verbindung an dem Berührungskontaktabschnitt des Stromweges auch bei Auftreten von Schwingungen, Korrosion an den zu dem Berührungskontaktabschnitt gehörenden Bauteilen oder einer Verschmutzung dieser Teile sicherstellen zu können, ist es weiterhin vorteilhaft, wenn der lagerachsenseitige und/oder lagergehäuseseitige Berührungskontaktbereich in Kontaktrichtung axial elastisch vorspannbar ist.In order to ensure the electrically conductive connection to the contact contact portion of the current path even in the presence of vibrations, corrosion on belonging to the contact contact portion components or contamination of these parts, it is also advantageous if the bearing axis side and / or bearing housing side touch contact area in the contact direction axially elastic can be prestressed.

Verläuft der Stromweg koaxial zu der Mittellängsachse der Lagerachse, so ist er im Bereich des Drehlagers vor Beschädigungen oder Manipulationen von der Außenseite her sicher geschützt.If the current path runs coaxially to the central longitudinal axis of the bearing axis, then it is safely protected in the region of the pivot bearing against damage or manipulation from the outside.

Das beim Stand der Technik verwendete Kabel besitzt den Nachteil, dass es durch scharfkantige Gegenstände oder Mutwilligkeit beschädigt werden kann, so dass neben der Gefahr einer Verletzung einer Bedienungsperson, die die freiliegenden Stromleitungen berühren kann, die Möglichkeit einer Stromunterbrechung besteht. Ist demgegenüber der Stromweg durch vorzugsweise starre Maschinenelemente gebildet, so kann sich eine derartige Beschädigung, wie sie bei einem verhältnismäßig weichen Kabel auftreten kann, nicht ereignen.The cable used in the prior art has the disadvantage that it can be damaged by sharp-edged objects or unwillingness, so that in addition to the risk of injury to an operator who can touch the exposed power lines, there is the possibility of power interruption. If, on the other hand, the current path is formed by preferably rigid machine elements, then such damage, as can occur in a relatively soft cable, does not occur.

Um eine sichere Stromführung zu gewährleisten, ist es weiterhin vorteilhaft, wenn der Berührungskontaktbereich des Stromwegbolzens eine gegenüber der Querschnittsfläche des Stromwegbolzens größere Kontaktfläche aufweist.In order to ensure safe conduction of current, it is furthermore advantageous if the contact contact region of the current path bolt has a contact surface which is larger than the cross-sectional area of the current path bolt.

Zur Verhinderung eines Kurzschlusses zu der Außenseite des Maschinengehäuses kann weiterhin vorgesehen sein, dass der Stromwegbolzen in der Durchgangsbohrung der Lagerachse in einer Hülle, vorzugsweise in Form einer Hülse aus elektrisch isolierendem Material, aufgenommen ist.To prevent a short circuit to the outside of the machine housing may further be provided that the Stromwegbolzen in the through hole of the bearing axis in a shell, preferably in the form of a sleeve of electrically insulating material is added.

Um auch einen Kurzschluss über den Außenanschluss des Stromwegbolzens zu verhindern, der beispielsweise durch eine Steckfahne gebildet sein kann, welche mittels Muttern auf dem Stromwegbolzen festgelegt ist, kann der Außenanschluss des Stromwegbolzens gegenüber der Lagerachse, vorzugsweise mittels einer ringförmigen Isolierlage elektrisch isoliert sein.In order to prevent a short circuit on the outer terminal of Stromwegbolzens, which may be formed for example by a plug-in lug, which is fixed by nuts on the Stromwegbolzen, the outer terminal of the Stromwegbolzens with respect to the bearing axis, preferably be electrically insulated by means of an annular insulating layer.

Der den Berührungskontaktbereich der Lagerachse gegenüberliegende Berührungskontaktbereich des Lagergehäuses kann vorteilhaft aus einem an dem Lagergehäuse gehaltenen Ring aus einem elektrisch leitenden Material gebildet sein, dessen Kontaktfläche vorzugsweise zumindest in ihren Außenabmessungen der Kontaktfläche des Stromwegbolzens entspricht.The contact contact region of the bearing housing lying opposite the contact contact region of the bearing axle can advantageously be formed from a ring held on the bearing housing made of an electrically conductive material, whose contact surface preferably corresponds at least in its outer dimensions to the contact surface of the current path bolt.

Zur Erzielung einer einfachen Isolierung des Stromweges gegenüber dem Lagergehäuse ist es weiterhin vorteilhaft, wenn das Lagergehäuse in Drehachsenrichtung einen ersten und einen zweiten Lagergehäuseabschnitt aufweist, wobei der zweite Lagergehäuseabschnitt im Bereich des Außenanschlusses des Lagergehäuses vorgesehen ist und aus einem elektrisch isolierenden Material, vorzugsweise einem POM-Kunststoff besteht. Hierbei kann der zweite Lagergehäuseabschnitt den Berührungskontaktbereich des Stromweges aufnehmen.To achieve a simple insulation of the current path relative to the bearing housing, it is also advantageous if the bearing housing in the rotational axis direction has a first and a second bearing housing portion, wherein the second bearing housing portion is provided in the region of the outer terminal of the bearing housing and made of an electrically insulating material, preferably a POM Plastic exists. Here, the second bearing housing section can receive the contact area of the current path.

Weitere vorteilhafte Ausgestaltungen sowie ein Ausführungsbeispiel des erfindungsgemäßen Drehlagers werden nachstehend in Verbindung mit der einzigen beiliegenden Zeichnungsfigur erläutert. In diesem Zusammenhang ist darauf hinzuweisen, dass sich die bei der Beschreibung verwendeten Begriffe "oben", "unten", "links" und "rechts" auf diese Zeichnungsfigur in einer Ausrichtung mit normal lesbaren Bezugszeichen bezieht.Further advantageous embodiments and an embodiment of the pivot bearing according to the invention are explained below in conjunction with the single accompanying drawing figure. In this context, it should be noted that those used in the description Terms "top", "bottom", "left" and "right" refers to this drawing figure in an orientation with normally readable reference numerals.

Das in der einzigen Zeichnungsfigur in einem Längsschnitt dargestellte, erfindungsgemäße Drehlager 10 weist als wesentliche Baugruppen eine Lagerachse 20 und ein Drehlagergehäuse 40 auf. Wie aus der einzigen Zeichnungsfigur weiter hervorgeht, ist die Ausrichtung des Drehlagers 10 vertikal, d.h. die Mittellängsachse ML der Lagerachse 20, die mit der Drehlagerachse zusammenfällt, verläuft vertikal. Das erfindungsgemäße Drehlager 10 ist aber auf diese Ausrichtung nicht beschränkt, sondern es kann auch in einer horizontalen Ausrichtung oder in einer schräg zur Horizontalen verlaufenden Ausrichtung verwendet werden.The illustrated in the single drawing figure in a longitudinal section, inventive pivot bearing 10 has, as essential components on a bearing axis 20 and a rotary bearing housing 40. As is apparent from the single drawing figure, the orientation of the pivot bearing 10 is vertical, i. the central longitudinal axis ML of the bearing axis 20, which coincides with the pivot bearing axis, extends vertically. However, the pivot bearing 10 according to the invention is not limited to this orientation, but it can also be used in a horizontal orientation or in an obliquely to the horizontal alignment.

Die Lagerachse 20 besitzt einen kreisförmigen Querschnitt und ist aus einem elektrisch leitenden Material, wie Edelstahl hergestellt. An ihrem oberen stirnseitigen Ende 20a ist eine Halterung H für eine zu drehende bzw. zu verschwenkende, nicht weiter dargestellte Maschinenbaugruppe angeordnet, bei der es sich beispielsweise um das Auslaufförderband einer Clipmaschine für Würste handeln kann. Um die Halterung H axial genau zu positionieren, ist im Bereich des stirnseitigen Endes 20a der Lagerachse 20 ein Absatz 20b vorgesehen. Wie aus der Figur noch hervorgeht, ist die Halterung H im Bereich des stirnseitigen Endes 20a der Lagerachse 20 mit dieser verschweißt.The bearing shaft 20 has a circular cross-section and is made of an electrically conductive material, such as stainless steel. At its upper front end 20a, a holder H for a to be rotated or to be pivoted, not shown machine assembly is arranged, which may be, for example, the outlet conveyor belt of a clip machine for sausages. In order to position the holder H axially accurately, a shoulder 20b is provided in the region of the end 20a of the bearing axis 20. As can be seen from the figure, the holder H in the region of the front end 20a of the bearing shaft 20 is welded thereto.

Das Lagergehäuse 40 ist an einem ebenfalls nicht weiter dargestellten Maschinenrahmen, wie beispielsweise dem einer Clipmaschine mittels Schrauben S1 befestigt. Wie aus der einzigen Zeichnungsfigur weiter entnommen werden kann, ist das Lagergehäuse 40 in axialer Richtung in einen ersten Lagergehäuseabschnitt 42 sowie einen zweiten Lagergehäuseabschnitt 44 zweigeteilt, wobei der erste Gehäuseabschnitt 42 über dem zweiten Gehäuseabschnitt 44 angeordnet ist. Die beiden Gehäuseabschnitte 42, 44 sind mittels eines Zentrierstiftes 46 gegeneinander zentriert und durch eine oder mehrere Schrauben S2 miteinander lösbar verbunden.The bearing housing 40 is attached to a machine frame, also not shown, such as a clip machine by means of screws S1. As can further be seen from the single drawing figure, the bearing housing 40 is divided in two in the axial direction into a first bearing housing section 42 and a second bearing housing section 44, wherein the first housing section 42 is arranged above the second housing section 44. The two housing sections 42, 44 are by means of a centering pin 46th centered against each other and releasably connected by one or more screws S2.

Für den ersten Lagergehäuseabschnitt 42 wird ebenfalls ein elektrisch leitendes Material, wie Edelstahl verwendet.For the first bearing housing portion 42 also an electrically conductive material, such as stainless steel is used.

Demgegenüber besteht der zweite Gehäuseabschnitt 44 aus einem elektrisch nichtleitenden Material, wie einem POM-Kunststoff. An seiner zu dem ersten Gehäuseabschnitt 42 weisenden Seite 44a ist der zweite Gehäuseabschnitt 44 mit einer kreisförmigen Ausnehmung 44b versehen, deren nicht bezeichnete Mittellängsachse mit der Mittellängsachse ML der Lagerachse 20 zusammenfällt.In contrast, the second housing portion 44 is made of an electrically non-conductive material, such as a POM plastic. On its side 44a pointing to the first housing section 42, the second housing section 44 is provided with a circular recess 44b, whose center longitudinal axis, not designated, coincides with the central longitudinal axis ML of the bearing axis 20.

Die Lagerachse 20 ist mittels zweier Lagerbuchsen L1 und L2 aus Messing drehbar in dem ersten Lagergehäuseabschnitt 42 gelagert. Die obere Lagerbuchse L1 bildet hierbei ein Axiallager, wogegen die untere Lagerbuchse L2 ein Radiallager darstellt, das sich gegen einen Ringabsatz 42a im Bereich des unteren stirnseitigen Endes 42b des ersten Gehäuseabschnitts 42 abstützt. Durch die obere Lagerbuchse L1 ist die Lagerachse 20 axial in Richtung ihres unteren stirnseitigen Endes 20c gegenüber dem Lagergehäuse 40 in ihrer Position fixiert. Wie aus der einzigen Figur hervorgeht, ist demgegenüber die Lagerachse 20 ohne weiteres nach oben herausnehmbar, d.h. in ein und das selbe Lagergehäuse 40 können verschiedene Lagerachsen 20 mit daran angebrachten, unterschiedlichen Maschinenteilen einfach eingesteckt werden, wobei durch die erfindungsgemäße Stromführung der Stromweg jedes Mal ohne irgendwelche zusätzlichen Maßnahmen selbsttätig hergestellt wird.The bearing shaft 20 is rotatably mounted in the first bearing housing portion 42 by means of two bearing bushes L1 and L2 made of brass. The upper bearing bushing L1 in this case forms a thrust bearing, whereas the lower bearing bushing L2 represents a radial bearing, which is supported against an annular shoulder 42a in the region of the lower frontal end 42b of the first housing section 42. By the upper bearing bushing L1, the bearing axis 20 is fixed axially in the direction of its lower end face 20c relative to the bearing housing 40 in position. As can be seen from the single figure, on the other hand, the bearing shaft 20 is easily removable upwards, i. in one and the same bearing housing 40 different bearing axles 20 can be easily inserted with attached different machine parts, which is automatically produced by the inventive power supply of the current each time without any additional measures.

Durch das erfindungsgemäße Drehlager 10 verläuft ein Stromweg SW. Der Stromweg SW erstreckt sich von einem oberen lagerachsenseitigen Außenanschluss bzw. Außenanschlusselement 22, das aus einem elektrisch leitenden Material, wie vernickeltem Kupfer besteht und das eine Aufsteck-Anschlussfahne 22a aufweist, auf eine nachstehend noch näher beschriebene Weise durch das Drehlager 10 hindurch zu einem unteren lagergehäuseseitigen Außenanschluss bzw. Außenanschlusselement 48, das ebenfalls aus einem elektrisch leitenden Material, wie vernickeltem Kupfer besteht und das auch eine Aufsteck-Anschlussfahne 48a besitzt. Die Stromflussrichtung kann dabei sowohl von dem oberen Außenanschlusselement 22 zu dem unteren Außenanschlusselement 48 erfolgen als auch umgekehrt.By the pivot bearing 10 according to the invention a current path SW runs. The current path SW extends from an upper bearing axis-side outer terminal 22 which is made of an electrically conductive material such as nickel-plated copper and the one Aufsteck-terminal lug 22a has, in a manner described in more detail below by the pivot bearing 10 through to a lower bearing housing side outer terminal or outer terminal 48, which also consists of an electrically conductive material such as nickel-plated copper and also has a Aufsteck-terminal lug 48a. The current flow direction can take place both from the upper outer connection element 22 to the lower outer connection element 48 and vice versa.

Um das obere Außenanschlusselement 22 mit dem unteren Außenanschlusselement 48 elektrisch leitend zu verbinden, weist der Stromweg SW weiterhin einen Stromwegbolzen 24 auf, der in einer Durchgangsbohrung 20d der Lagerachse 20 angeordnet ist. Um den Stromwegbolzen 24 gegenüber der Lagerachse 20 elektrisch zu isolieren, ist der Stromwegbolzen 24 im Bereich der Durchgangsbohrung 20d der Lagerachse 20 vollständig von einer Hülle 26 aus einem elektrisch isolierenden Material, wie einem hiefür geeigneten Kunststoff umschlossen. Die Hülle 26 kann beispielsweise als Hülse ausgebildet sein, die vor dem Einsetzen des Stromwegbolzens 24 in die Durchgangsbohrung 20d der Lagerachse 20 auf den Stromwegbolzen 24 aufgeschoben wird.In order to connect the upper outer connection element 22 to the lower outer connection element 48 in an electrically conductive manner, the current path SW furthermore has a Stromwegbolzen 24, which is arranged in a through hole 20 d of the bearing axis 20. To electrically isolate the Stromwegbolzen 24 relative to the bearing axis 20, the Stromwegbolzen 24 in the region of the through hole 20d of the bearing shaft 20 is completely enclosed by a shell 26 made of an electrically insulating material, such as a suitable plastic for this purpose. The shell 26 may be formed, for example, as a sleeve which is pushed onto the Stromwegbolzen 24 before insertion of the Stromwegbolzens 24 in the through hole 20d of the bearing shaft 20.

Wie aus der einzigen Zeichnungsfigur weiterhin hervorgeht, steht der Stromwegbolzen 24 über das obere stirnseitige Ende 20a der Lagerachse 20 über. In diesem Bereich ist der Stromwegbolzen 24 mit einem Gewindeabschnitt 24a versehen. Auf diesen Gewindeabschnitt 24a ist das lagerachsenseitige Außenanschlusselement 22, welches hierzu eine Öse 22b aufweist, aufgeschoben und dort mittels zweier Muttern M1, M2, welche die Öse 22a des Außenanschlusselements 22 zwischen sich aufnehmen, festgelegt. Die untere Mutter M2 stützt sich dabei unter Zwischenschaltung einer oberen Isolierlage 28 aus elektrisch nicht leitendem Material ab, wobei die Isolierlage 28 die Isolierhülle 26 um den Stromwegbolzen 24 an dem Austritt des Stromwegbolzens 24 aus der Durchgangsbohrung 20d überlappt. Wie aus der Zeichnungsfigur ebenfalls hervorgeht, kann hierbei die obere Mutter M1 eine Hutmutter sein.As can also be seen from the single drawing figure, the Stromwegbolzen 24 via the upper end face 20a of the bearing axis 20 via. In this area, the Stromwegbolzen 24 is provided with a threaded portion 24 a. The bearing axis-side outer connection element 22, which has an eye 22b for this purpose, is pushed onto this threaded section 24a and fixed there by means of two nuts M1, M2, which receive the eyelet 22a of the outer connection element 22 between them. The lower nut M2 is supported with the interposition of an upper insulating layer 28 of electrically non-conductive material, wherein the insulating layer 28, the insulating sleeve 26 to the Stromwegbolzen 24 at the outlet of the Stromwegbolzens 24 from the Through hole 20d overlaps. As can also be seen from the drawing figure, in this case the upper nut M1 can be a cap nut.

Der Stromwegbolzen 24 steht ebenfalls über das untere stirnseitige Ende 20c der Lagerachse 20 über und endet in einem Kopf 24b, dessen vorzugsweise kreisförmige Querschnittsfläche größer ist als die vorzugsweise kreisförmige Querschnittsfläche des Stromwegbolzens 24. Die in Richtung des unteren Endes des Drehlagers 10 weisende Fläche des Kopfes 24b bildet einen Berührungskontaktbereich in Form einer Schleifkontaktfläche, die zur Herstellung einer elektrischen Verbindung zwischen dem Stromwegbolzen 24 und dem lagergehäuseseitigen Außenanschlusselement 48 mit einem lagergehäuseseitigen Berührungskontaktbereich elektrisch leitend in Verbindung steht. Der Berührungskontaktbereich des Lagergehäuses 40 ist durch einen aus elektrisch leitendem Material, wie Edelstahl bestehenden Kontaktring 50 gebildet, welcher mittels einer Schraube S3 an dem Lagergehäuse 40 im Inneren der Ausnehmung 44b des zweiten Gehäuseabschnitts 44 fixiert ist. Die in Richtung des Stromwegbolzens 24 weisende Fläche des Kontaktrings 50 bildet den lagergehäuseseitigen Berührungskontaktbereich, wobei diese ebenfalls als Schleifkontaktfläche vorgesehen ist. Die beiden Schleifkontaktflächen des Kopfes 24a und des Kontaktrings 50 liegen planparallel aufeinander und weisen annähernd die gleichen Außenabmessungen auf. Es ist noch zu bemerken, dass der Berührungskontaktbereich des Stromwegbolzens 24 und des Kontaktrings 50 den Berührungskontaktabschnitt des Stromweges SW bilden.The Stromwegbolzen 24 is also on the lower end-side end 20c of the bearing axis 20 and ends in a head 24b, preferably circular cross-sectional area is greater than the preferably circular cross-sectional area of the Stromwegbolzens 24. The pointing in the direction of the lower end of the pivot bearing 10 surface of the head 24b forms a touch contact area in the form of a sliding contact surface, which is electrically connected to a bearing housing side contact contact area for establishing an electrical connection between the Stromwegbolzen 24 and the bearing housing side outer terminal member 48. The contact area of contact of the bearing housing 40 is formed by a made of electrically conductive material, such as stainless steel contact ring 50 which is fixed by means of a screw S3 to the bearing housing 40 in the interior of the recess 44b of the second housing portion 44. The facing in the direction of Stromwegbolzens 24 surface of the contact ring 50 forms the bearing housing side contact contact area, which is also provided as a sliding contact surface. The two sliding contact surfaces of the head 24a and the contact ring 50 are plane-parallel to each other and have approximately the same outer dimensions. It should be noted that the touch contact portion of the current path pin 24 and the contact ring 50 constitute the touch contact portion of the current path SW.

Auf die Schraube S3 ist das lagergehäuseseitige Außenanschlusselement 48, welches hierzu eine Öse 48b besitzt, aufgeschoben und mittels einer Kontermutter 52 an der Schraube S3 außerhalb des zweiten Gehäuseabschnitts 44 gesichert.The bearing housing-side external connection element 48, which has an eyelet 48b for this purpose, is pushed onto the screw S3 and secured by means of a lock nut 52 on the screw S3 outside the second housing section 44.

Um Fertigungstoleranzen zwischen der Lagerachse 20 und dem Lagergehäuse 40 ausgleichen zu können, wird der Kopf 24b des Stromwegbolzens 24 mittels einer Druckfeder 30 gegen den Kontaktring 50 des Lagergehäuses 40 gedrängt. Hierbei stützt sich die Druckfeder 30 über einen Gleitring 32 unter Zwischenschaltung einer unteren ringförmigen Isolierlage 34 aus einem elektrisch isolierenden Material an dem unteren stirnseitigen Ende 20c der Lagerachse 20 ab. Es ist noch anzumerken, dass die untere ringförmige Isolierlage 34 die Isolierhülle 26 um den Stromwegbolzen 24 an dem Austritt des Stromwegbolzens 24 aus der Durchgangsbohrung 20d überlappt.In order to compensate for manufacturing tolerances between the bearing shaft 20 and the bearing housing 40, the head 24b of the Stromwegbolzens 24 urged by a compression spring 30 against the contact ring 50 of the bearing housing 40. Here, the compression spring 30 is supported via a slide ring 32 with the interposition of a lower annular insulating layer 34 made of an electrically insulating material at the lower front end 20c of the bearing shaft 20 from. It should also be noted that the lower annular insulating layer 34 overlaps the insulating sheath 26 around the current path pin 24 at the exit of the current path pin 24 from the through-hole 20d.

Claims (10)

  1. A pivot bearing with current feedthrough for a sausage clipping machine, containing a bearing housing (40) and a bearing shaft (20) rotatably held therein, the bearing housing (40) and the bearing shaft (20) being made at least in part from an electrically conductive material,
    with at least one current path (SW) which passes through the bearing housing (40) and the bearing shaft (20) being provided, which current path is electrically insulated at least with respect to the electrically conductive sections of the bearing shaft (20) and of the bearing housing (40) and which has at least one external connection (22, 48) provided in each case on the bearing housing (40) and the bearing shaft (20), and
    the current path (SW) having a current path bolt (24) of electrically conductive material inserted into a through bore (20d) in the bearing shaft (20),
    characterised in that the current path bolt (24) protrudes from the bearing shaft (20) at its one face end (24a) and forms the external connection (22) to the bearing shaft (20), and at its other face end has a contact region (24b) which is connected in electrically conductive manner to a contact region (50) of the bearing housing (40) to form the contact section (24b, 50) of the current path (SW),
    the contact section (24b) of the current path bolt (24) being elastically prestressed by means of a spring element (30) in the direction of the contact region (50) of the bearing housing (40), and
    the spring element (30) being supported in electrically insulated manner on the end face (20c) of the bearing shaft (20) fixed in its axial position towards the contact region (50) of the bearing housing (40).
  2. A pivot bearing according to Claim 1,
    characterised in that the current path (SW) between the bearing shaft (20) and the bearing housing (40) has a contact section (24b, 50) which permits at least a rotary movement between the bearing shaft (20) and the bearing housing (40) without loss of the electrical conductivity of the current path (SW), which section is composed of a contact region (24b, 50) on the bearing housing side and on the bearing shaft side.
  3. A pivot bearing according to Claim 1 or 2,
    characterised in that the current path (SW) runs coaxially to the centre line (ML) of the bearing shaft (20).
  4. A pivot bearing according to one of Claims 1 to 3,
    characterised in that the current path (SW) is formed by machine elements (22, 24, 50, 48).
  5. A pivot bearing according to one of Claims 1 to 4,
    characterised in that the contact region (24b) of the current path bolt (24) has a contact surface which is larger than the cross-sectional surface of the current path bolt (24).
  6. A pivot bearing according to one of Claims 1 to 5,
    characterised in that the spring element (30) is supported in electrically insulated manner on the end face (20c) of the bearing shaft (20) fixed in its axial position towards the contact region (50) of the bearing housing (40) with the interposition of a slip ring (32).
  7. A pivot bearing according to one of Claims 1 to 6,
    characterised in that the spring element (30) is supported in electrically insulated manner on the end face (20c) of the bearing shaft (20) fixed in its axial position towards the contact region (50) of the bearing housing (40) by an annular insulating layer (34).
  8. A pivot bearing according to one of Claims 1 to 7,
    characterised in that the external connection (22) of the current path bolt (24) is electrically insulated with respect to the bearing shaft (20), preferably by means of an annular insulating layer (28).
  9. A pivot bearing according to one of Claims 1 to 8,
    characterised in that the contact region of the bearing housing (40) is formed from a contact ring (50) made of an electrically conductive material which is held in the bearing housing (40), the contact surface of which ring preferably, at least in its external dimensions, corresponds to the contact surface of the current path bolt (24).
  10. A pivot bearing according to one of Claims 1 to 9,
    characterised in that the bearing housing (40) in the direction of the axes of rotation has a first and a second bearing housing section (42, 44), the second bearing housing section (44) being provided in the region of the external connection (48) of the bearing housing (40) and consisting of an electrically insulating material.
EP05716370A 2004-03-29 2005-03-24 Pivot bearing with electrical continuity Not-in-force EP1733459B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004015313A DE102004015313B3 (en) 2004-03-29 2004-03-29 Rotary bearing with current lead-through, used in sausage clipping machine, includes bolt projecting from ends of bearing axle, which forms insulated current path
PCT/EP2005/003173 WO2005093913A1 (en) 2004-03-29 2005-03-24 Pivot bearing with electrical continuity

Publications (2)

Publication Number Publication Date
EP1733459A1 EP1733459A1 (en) 2006-12-20
EP1733459B1 true EP1733459B1 (en) 2007-12-05

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EP05716370A Not-in-force EP1733459B1 (en) 2004-03-29 2005-03-24 Pivot bearing with electrical continuity

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US (1) US7387514B2 (en)
EP (1) EP1733459B1 (en)
DE (2) DE102004015313B3 (en)
WO (1) WO2005093913A1 (en)

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Also Published As

Publication number Publication date
EP1733459A1 (en) 2006-12-20
WO2005093913A1 (en) 2005-10-06
DE102004015313B3 (en) 2005-09-08
US7387514B2 (en) 2008-06-17
US20070218708A1 (en) 2007-09-20
DE502005002161D1 (en) 2008-01-17

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