DE3738504A1 - Casing for carbon brushes - Google Patents

Casing for carbon brushes

Info

Publication number
DE3738504A1
DE3738504A1 DE19873738504 DE3738504A DE3738504A1 DE 3738504 A1 DE3738504 A1 DE 3738504A1 DE 19873738504 DE19873738504 DE 19873738504 DE 3738504 A DE3738504 A DE 3738504A DE 3738504 A1 DE3738504 A1 DE 3738504A1
Authority
DE
Germany
Prior art keywords
carbon
carbon brush
casing
quiver
spring
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.)
Withdrawn
Application number
DE19873738504
Other languages
German (de)
Inventor
Karl Dipl Ing Peitsmeier
Gerhard Walter
Wolfgang Dipl Ing Russ
Helmut Ing Grad Patzelt
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE19873738504 priority Critical patent/DE3738504A1/en
Publication of DE3738504A1 publication Critical patent/DE3738504A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01R39/02Details for dynamo electric machines
    • H01R39/38Brush holders
    • H01R39/40Brush holders enabling brush movement within holder during current collection
    • 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
    • H01R39/02Details for dynamo electric machines
    • H01R39/18Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/26Solid sliding contacts, e.g. carbon brush
    • H01R39/27End caps on carbon brushes to transmit spring pressure

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Abstract

The application relates to a casing for carbon brushes, in which a carbon brush is supported such that it can be displaced axially against the force of a compression spring and is additionally held at right angles thereto (radially) by spring force. In order to construct such a carbon brush guide in a particularly simple manner and at the same time without any play, it is provided according to the invention that the casing consists of an elastic synthetic material and that, in the region of its open end, which is used for the carbon brush to pass through, at least one walled region is constructed as an inwardly extended leaf spring, which acts on the carbon brush in a sprung manner, is held at at least one end, and presses the carbon brush against an opposite, inner guide surface of the casing.

Description

Die Erfindung betrifft einen Köcher für Schleifkohlen, in dem die Schleifkohle gegen die Kraft einer Druck­ feder axial verschiebbar gelagert und zusätzlich senk­ recht dazu (radial) durch Federkraft gehalten ist.The invention relates to a quiver for carbon brushes, in which the carbon brushes against the force of a pressure spring axially slidably mounted and additionally lower right to it (radial) is held by spring force.

Ein derartiger Köcher ist bereits der DE-OS 31 42 879 als bekannt zu entnehmen. Dort ist in ein Gehäuse eine U-förmig gebogene Blattfeder eingesetzt, die die Schleif­ kohle an zwei gegenüberliegenden Seiten federnd beauf­ schlagt. Dies hat einerseits den Nachteil, daß in Form der Blattfeder ein zusätzliches Bauteil erforderlich ist. Andererseits ist die Schleifkohle in Federbeauf­ schlagungsrichtung im Austrittsbereich aus dem Köcher ungeführt, was zu Kippbewegungen z.B. im Falle von Drehrichtungsänderungen führen kann.Such a quiver is already DE-OS 31 42 879 as known. There is one in a case U-shaped leaf spring inserted, which the grinding carbon resiliently applied on two opposite sides strikes. On the one hand, this has the disadvantage that in form the leaf spring requires an additional component is. On the other hand, the carbon is in spring direction of impact in the exit area from the quiver unguided, which leads to tilting movements e.g. in case of Changes in the direction of rotation can result.

Der vorliegenden Erfindung lag daher die Aufgabe zu­ grunde, die Nachteile der bekannten Einrichtung zu ver­ meiden und einen gattungsgemäßen Köcher so auszuge­ stalten, daß die gesamte Schleifkohlenführung einfach und preiswert herzustellen ist, und eine genaue, spiel­ freie Führung der Schleifkohle sichergestellt ist.The present invention was therefore the object reasons to ver the disadvantages of the known device avoid and to extract a generic quiver design that the entire carbon guide is easy and is inexpensive to manufacture, and an accurate, playful  free guidance of the carbon is ensured.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Köcher aus elastischem Kunststoff besteht und im Bereich seines offenen, dem Durchtritt der Schleifkohle dienenden Endes mindestens ein Wandbereich als nach innen ausgestellte, die Schleifkohle federnd beauf­ schlagende, mindestens einseitig gehaltene Blattfeder ausgebildet ist, die die Schleifkohle gegen eine gegen­ überliegende, innere Führungsfläche des Köchers drückt.This object is achieved in that the quiver is made of elastic plastic and Area of his open, the passage of the abrasive carbon serving at least one wall area as after issued inside, the abrasive carbon resiliently applied striking leaf spring, held at least on one side is formed, the abrasive carbon against one against overlying inner guide surface of the quiver.

Der Gegenstand der Erfindung soll im folgenden anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert werden.The subject matter of the invention will be described in the following of an embodiment shown in the drawing are explained in more detail.

In der Zeichnung zeigenShow in the drawing

Fig. 1 eine teilweise geschnittene Seitenansicht eines Köchers ohne Schleifkohle, Fig. 1 is a partially sectioned side view of a quiver without grinding coal,

Fig. 2 eine gegenüber Fig. 1 um 90° gedrehte Seitenansicht, und Fig. 2 is a comparison with FIG. 1 rotated by 90 ° side view, and

Fig. 3 einen Teilschnitt entsprechend Fig. 1, jedoch mit eingesetzter Schleifkohle. Fig. 3 is a partial section corresponding to FIG. 1, but with the carbon used.

Der in der Zeichnung dargestellte, aus Kunststoff be­ stehende Köcher 1 dient der Aufnahme und Führung einer Schleifkohle 2, die in axialer Richtung durch eine Druck­ feder 3 beaufschlagt ist, Ein aus dem Köcher 1 heraus­ geführter Bodenanschluß 4 dient der elektrischen Kontaktierung. The illustrated in the drawing, plastic be standing quiver 1 serves to receive and guide a carbon brush 2 , which is acted upon in the axial direction by a compression spring 3 , a bottom connection 4 guided out of the quiver 1 serves for electrical contacting.

Im Bereich des offenen, dem Durchtritt der Schleifkohle 2 dienenden Endes des Köchers 1 ist aus seiner Seiten­ wand eine ausgeschnittene, ausgestellte, die Schleif­ kohle 2 federnd beaufschlagende, einseitig gehaltene Blattfeder 5 ausgeformt, die die Schleifkohle 2 gegen eine gegenüberliegende, innere Führungsfläche 6 des Köchers 1 drückt und so einen spielfreien Sitz der Schleifkohle 2 sicherstellt.In the area of the open, the passage of the carbon brush 2 serving end of the quiver 1 is a cut, flared, the carbon brush 2 resiliently acting, one-sided leaf spring 5 formed from its side wall, the carbon brush 2 against an opposite, inner guide surface 6 of the Quiver 1 presses and thus ensures a backlash-free fit of the carbon 2 .

Claims (1)

Köcher für Schleifkohlen, in dem die Schleifkohle gegen die Kraft einer Druckfeder axial verschiebbar gelagert und zusätzlich senkrecht dazu (radial) durch Federkraft gehalten ist, dadurch gekennzeichnet, daß der Köcher (1) aus elastischem Kunststoff besteht und daß im Bereich seines offenen, dem Durchtritt der Schleifkohle (2) dienenden Endes mindestens ein Wand­ bereich als nach innen ausgestellte, die Schleifkohle (2) federnd beaufschlagende, mindestens einseitig ge­ haltene Blattfeder (5) ausgebildet ist, die die Schleif­ kohle (2) gegen eine gegenüberliegende, innere Führungs­ fläche (6) des Köchers (1) drückt.Quiver for carbon brushes, in which the carbon brushes are axially displaceable against the force of a compression spring and additionally held perpendicularly (radially) by spring force, characterized in that the quiver ( 1 ) consists of elastic plastic and that in the area of its open, the passage the abrasive carbon ( 2 ) serving at least one wall area is designed as an inward-facing leaf spring ( 5 ) which acts resiliently against the abrasive carbon ( 2 ) and holds the abrasive carbon ( 2 ) against an opposite, inner guide surface ( 6 ) of the quiver ( 1 ).
DE19873738504 1987-11-13 1987-11-13 Casing for carbon brushes Withdrawn DE3738504A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873738504 DE3738504A1 (en) 1987-11-13 1987-11-13 Casing for carbon brushes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873738504 DE3738504A1 (en) 1987-11-13 1987-11-13 Casing for carbon brushes

Publications (1)

Publication Number Publication Date
DE3738504A1 true DE3738504A1 (en) 1988-09-22

Family

ID=6340384

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873738504 Withdrawn DE3738504A1 (en) 1987-11-13 1987-11-13 Casing for carbon brushes

Country Status (1)

Country Link
DE (1) DE3738504A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1265873A (en) * 1917-01-27 1918-05-14 Stewart Warner Speedometer Brush-mount for electric motors.
DE8411655U1 (en) * 1984-04-13 1984-08-02 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Brush holder for carbon brushes on electric motors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1265873A (en) * 1917-01-27 1918-05-14 Stewart Warner Speedometer Brush-mount for electric motors.
DE8411655U1 (en) * 1984-04-13 1984-08-02 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Brush holder for carbon brushes on electric motors

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OP8 Request for examination as to paragraph 44 patent law
8130 Withdrawal