EP0398320B1 - Porte-balai pour balai en charbon - Google Patents

Porte-balai pour balai en charbon Download PDF

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Publication number
EP0398320B1
EP0398320B1 EP90109318A EP90109318A EP0398320B1 EP 0398320 B1 EP0398320 B1 EP 0398320B1 EP 90109318 A EP90109318 A EP 90109318A EP 90109318 A EP90109318 A EP 90109318A EP 0398320 B1 EP0398320 B1 EP 0398320B1
Authority
EP
European Patent Office
Prior art keywords
carbon brush
brush holder
wall
fastening
projections
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
EP90109318A
Other languages
German (de)
English (en)
Other versions
EP0398320A3 (fr
EP0398320A2 (fr
Inventor
Walter Köster
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.)
Schunk Motorensysteme GmbH
Original Assignee
Schunk Motorensysteme GmbH
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 Schunk Motorensysteme GmbH filed Critical Schunk Motorensysteme GmbH
Publication of EP0398320A2 publication Critical patent/EP0398320A2/fr
Publication of EP0398320A3 publication Critical patent/EP0398320A3/fr
Application granted granted Critical
Publication of EP0398320B1 publication Critical patent/EP0398320B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/38—Brush holders
    • H01R39/40—Brush holders enabling brush movement within holder during current collection

Definitions

  • the invention relates to a carbon holder made of stamped and folded sheet metal material for fastening to a holding support such as a plastic support, with flat projections extending from the coal holder and aligned with a fastening surface of the holding support engaging in associated recesses in the holding support.
  • a corresponding carbon holder can be found in US-A-3,656,018.
  • a bottom surface has a recess on the one hand and, on the other hand, triangular projections extending from this and from sections of the bottom wall, which are bent out of the plane of the bottom surface in order to engage in a recess of a holding support.
  • a brush holder for electrical machines is known from DE-A-27 33 130, in which the housing has laterally projecting tabs which can be inserted into slot guides of a brush guide. The rags must also be punched out of the sheet metal from which the sections for the Housing of the carbon brush are punched.
  • a sheet metal blank is selected that only enables the carbon brush to be inserted into the housing from the front end, that is to say from the side on which the carbon brush rests on a commutator or slip ring.
  • DE-A-37 26 894 describes a carbon holder in which the attachment of a strand element extending from the carbon brush can be introduced in a sleeve spanning a slot in a wall of the carbon holder.
  • the object of the present invention is to enable the carbon holder to be securely fixed on a holding support such as a plastic support using structurally simple means.
  • a tension-free fixation in the support bracket should be possible, with a hooking in the desired positions if necessary.
  • the carbon brush can be inserted into the carbon holder from the rear, so that the advantages that can be achieved in this way can be retained when equipping the carbon holder.
  • the object is achieved in that the projections run parallel to the mounting surface and are cut out from walls running perpendicular to the mounting surface of the support bracket, to which the walls are folded away, and / or that the projections are extensions of a wall section extending parallel to the mounting surface are dovetail-shaped teeth, which is present in the wall facing the mounting surface of the support bracket.
  • the projections can preferably be designed as latching hooks.
  • the locking hooks preferably have the shape of an unequal leg triangle, the long side legs of which extend in the direction of the front end face of the carbon holder.
  • the projections are extensions of the sections of the carbon holder forming the parting line, it is necessary that, in contrast to the alternative in which the sections form part of the walls running perpendicular to the fastening surface, slightly more sheet metal material is required. Nevertheless, the projections are quasi sections of a wall of the carbon holder, which are predetermined by the course of the wall itself.
  • Each carbon holder 10, 44, 54, 60 and 70 has a cuboid housing 12, the side walls 14 and 16 of which have bulges in order to accommodate a spring element (not shown), preferably a helical spring element, which is attached to the carbon in the direction of the front end face 18 of the Coal holder 10, 44, 54, 60 and 70 exerts directed force.
  • Bendable webs 20 are provided on the back, which serve as spring brakes. As a result, the abrasive carbon with the spring element can be pushed into the carbon holder 10, 44, 54, 60 and 70 from the rear thereof. After the introduction of grinding carbon and spring element, the webs 20 are then bent to partially close the rear end face.
  • a slot 22 is provided in the bulged side wall 16 at a distance from the end region 18 and from the rear brakes 20 consisting of web-like elements, through which a stranded element starting from the carbon can be freely moved around it to connect at its front end with a mounting 24 extending from the housing 12.
  • the attachment 24 is from the wall 16 cut out and bent so that it runs approximately perpendicular to this. This results in a rectangular or square flat surface, which serves as an attachment 24 for the strand element.
  • the attachment 24 is located in the axial direction of the holder 10 in front of or behind the slot 22.
  • the slot 22 only extends over a certain area of the wall 16, the braid can be moved freely. Due to the small extent of the slot 22, however, a high stability of the carbon holder 10 or 44 itself is ensured.
  • the carbon holder 10, 44, 54, 60 and 70 consists of stamped and folded sheet metal material, the edges to be joined together being assembled by a dovetail-shaped connection 30 in the upper wall 32.
  • the opposite wall which forms the underside, can be arranged on a fastening surface, not shown, of a holding support.
  • protrusions 36, 38, 40 emanate from the lower edge region 42 of the walls 16 and 14, respectively. These projections 36 38, 40 remain in the plane of the lower wall to which the side walls 14 and 16 are folded.
  • the projections 36, 38, 40 can be inserted into assigned slot-shaped recesses in the holding support, so that the holder 10 or 44 is preferably fixed in a plastic support without tension.
  • the projections 36, 38, 40 may be round or barbed. The latter is the case when an uncontrolled movement of the carbon holder 10 is to be prevented.
  • a shape of an isosceles triangle is preferably selected, the long leg 56 (see FIG. 4) of which preferably faces the front end face 18 of the respective carbon holder 10, 44, 54, 60 or 70 .
  • the carbon holder 44 according to FIG. 3 differs from that of FIGS. 1 and 2 in that the wall 32 having the dovetail-shaped parting line 30 can also have projections 46 and 48 which run parallel to the wall 32 and can interact with a holding support. For this purpose, it is not necessary that 16 sections are punched out of the walls, even if this is additionally possible, as the projection 40 shows.
  • the projections 46 and 48 of the carbon holder 44 which produce the connection to the holding carrier are preferably formed by sections of toothing which otherwise form the connection between the mutually facing sections 50 and 52 of the wall 32 of the carbon holder 44. It is therefore only necessary that some gears are punched out of the sheet-like base material over a large area and the associated opposite sections of the edge sections 50 and 52 are removed in order to allow the extended gears, i.e. the projections 46 and 48, to run flush in the plane 32. Of course, one can Overlap takes place in the area of the projections 46 and 48 in the area of the sections 50 and 52, so that the projections 46 and 48 rest on the wall 32.
  • Fig. 4 it can be seen in relation to the projections 36 which fix the carbon holder 54 in a carrier plate (not shown) that these can be designed as latching hooks, so that they can be fixed immovably at a specific position of the carrier plate.
  • the projections 36 have the geometry of an unequal-legged triangle, the longer side leg 56 facing the front end face 18 of the carbon holder 54.
  • the charcoal holder 60 according to FIG. 5 has a special feature with respect to the parting line 62 provided in the wall 32.
  • sections 64, 66 of the parting line can be extended beyond the wall 32 and then have parallel sections 68 and 70 parallel to the side walls 14, 16, which e.g. serve as an attachment of the carbon strand, making the attachment plate 24 unnecessary, or as an attachment for e.g. a choke can be used.
  • fastening sections 36, 38 and 74, 76 which each consist of sections of the wall 16 and the wall 32, run both in the plane of the wall 72 and the wall 32 having the parting line 62 opposite wall are formed. This allows the carbon holder 70 to be easily attached to a support in any desired position.
  • FIG. 6 shows a further feature to be emphasized.
  • the fastener 24 to a recess such as e.g. Longitudinal bead 77 may be provided.
  • a depression in the form of an indentation or the like is also possible.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Stringed Musical Instruments (AREA)

Claims (10)

  1. Porte-balai pour balai en charbon (10, 44, 54, 60, 70) réalisé en tôle estampée et pliée, pour être fixé à un support de retenue tel qu'un support en matière plastique, et partant du porte-balai, des saillies (36, 38, 40, 46, 48, 74, 76), plates, dirigées vers une surface de fixation du support de retenue, viennent prendre dans des découpes associées du support de retenue, porte-balai caractérisé en ce que les saillies (36, 38, 40, 74, 76) sont parallèles à la surface de fixation et sont des segments découpés dans des parois (14, 16) du support de retenue s'entendant perpendiculairement à la surface de fixation, et par rapport auxquelles on a dégagé par pliage les parois (14, 16) et/ou les saillies (46, 48) sont des prolongements d'une denture (30) en queue d'aronde, parallèle à la surface de fixation et partant des segments de paroi, ces prolongements étant prévus dans la paroi (32) tournée vers la surface de fixation du support de retenue.
  2. Porte-balai selon la revendication 1, caractérisé en ce que les saillies (36, 38, 40, 46, 48, 74, 76) sont des crochets d'encliquetage.
  3. Porte-balai selon au moins l'une des revendications 1 ou 2, caractérisé en ce que dans les plans de paroi (24, 32), opposés, parallèles aux surfaces de fixation il y a des saillies (36, 38, 40, 46, 48).
  4. Porte-balai selon la revendication 2, caractérisé en ce que les crochets d'encliquetage (36) ont la forme d'un triangle irrégulier dont le côté le plus long (56) est dirigé dans la direction de la surface frontale avant (18) du porte-balai (10, 44, 54, 60, 70).
  5. Porte-balai (10, 44, 54, 60) selon la revendication 1, réalisé en une matière conductrice d'électricité pour un balai frottant notamment d'un moteur électrique, comprenant un boîtier (12), de préférence quadrangulaire, dont la surface avant (18) peut être traversée de manière mobile par un balai en charbon coulissant axialement dans le boîtier, un élément à ressort agissant axialement sur le balai étant logé dans le boîtier, et un élément de cordon partant du balai ainsi qu'une fente longitudinale (22) prévue dans une paroi latérale (16) du boîtier, qui reçoit de manière libre en mouvement, au moins un segment de l'élément de cordon, et au niveau de la paroi ayant la fente longitudinale, il est prévu un segment comme moyen de fixation (24) pour l'extrémité libre de l'élément de cordon, caractérisé en ce que le segment qui forme le moyen de fixation (24) est en saillie latéralement de la paroi (16) et se trouve devant ou derrière la fente longitudinale (22).
  6. Porte-balai selon la revendication 5, caractérisé en ce qu'entre le moyen de fixation (24) et la fente longitudinale (22) il est prévu un frein à cordon (26, 28) limitant le mouvement du cordon en direction de la face avant (18).
  7. Porte-balai selon la revendication 5, caractérisé en ce que le frein à cordon est prévu dans la zone de la paroi du porte-balai entre la fente longitudinale (22) et le moyen de fixation (24).
  8. Porte-balai selon la revendication 5, caractérisé en ce que le segment (24) qui forme le moyen de fixation est essentiellement perpendiculaire à la paroi (16) et de préférence plan.
  9. Porte-balai selon la revendication 1, caractérisé en ce que le porte-balai (70) réalisé en tôle estampée et pliée présente un joint (62) de séparation en queue d'aronde, au moins un segment (64, 66) du joint s'étendant sur la paroi (14, 16) dirigée perpendiculairement à la surface munie du joint de séparation, et, de préférence, recourbé parallèlement à cette paroi, le segment d'extrémité (68, 69) étant réalisé sous la forme de fiches ou de moyens de fixation par exemple pour une bobine.
  10. Porte-balai selon la revendication 5, caractérisé en ce que le moyen de fixation (24) comporte une cavité telle que par exemple une rainure (77) pour fixer de manière contrôlée, l'élément de cordon.
EP90109318A 1989-05-18 1990-05-17 Porte-balai pour balai en charbon Expired - Lifetime EP0398320B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8906152U DE8906152U1 (fr) 1989-05-18 1989-05-18
DE8906152U 1989-05-18

Publications (3)

Publication Number Publication Date
EP0398320A2 EP0398320A2 (fr) 1990-11-22
EP0398320A3 EP0398320A3 (fr) 1991-10-16
EP0398320B1 true EP0398320B1 (fr) 1994-11-30

Family

ID=6839316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109318A Expired - Lifetime EP0398320B1 (fr) 1989-05-18 1990-05-17 Porte-balai pour balai en charbon

Country Status (3)

Country Link
EP (1) EP0398320B1 (fr)
AT (1) ATE114883T1 (fr)
DE (2) DE8906152U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1109272A2 (fr) * 1999-12-15 2001-06-20 Schunk Italia S.r.l. Porte-balai pour balai en charbon

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19717594B4 (de) * 1997-04-25 2017-09-07 BSH Hausgeräte GmbH Bürstenanordnung an einer elektrischen Maschine
US7545072B2 (en) 2005-10-13 2009-06-09 Culsforth Products, Inc. Resilient member for a brush holder assembly

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656018A (en) * 1970-11-25 1972-04-11 Gen Electric Brush holder assembly
FR2315790A1 (fr) * 1975-06-26 1977-01-21 Sev Marchal Guide de balai perfectionne pour machine electrique tournante et machine correspondante
US4074162A (en) * 1976-06-24 1978-02-14 Dynamics Corporation Of America Brush spring assembly
DE7715158U1 (fr) * 1977-05-12 1978-10-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen
DE2733130A1 (de) * 1977-07-22 1979-02-01 Bosch Gmbh Robert Buerstenhalterung fuer elektrische maschinen
DE2823991C2 (de) * 1978-06-01 1986-06-05 Robert Bosch Gmbh, 7000 Stuttgart Bürstenhalter für eine elektrische Maschine
GB2094069A (en) * 1981-03-04 1982-09-08 Carbone Ltd Holder for an electrical conductor brush
DE3726689C2 (de) * 1986-08-13 2001-07-26 Schunk Motorensysteme Halterung für eine Kohlebürste
DE3726894A1 (de) * 1986-08-13 1988-02-18 Schunk Motorensysteme Halter fuer eine schleifkohle
DE3627529A1 (de) * 1986-08-13 1988-02-25 Schunk Motorensysteme Halter fuer eine schleifkohle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1109272A2 (fr) * 1999-12-15 2001-06-20 Schunk Italia S.r.l. Porte-balai pour balai en charbon
EP1109272A3 (fr) * 1999-12-15 2002-02-06 Schunk Italia S.r.l. Porte-balai pour balai en charbon

Also Published As

Publication number Publication date
DE59007800D1 (de) 1995-01-12
EP0398320A3 (fr) 1991-10-16
EP0398320A2 (fr) 1990-11-22
ATE114883T1 (de) 1994-12-15
DE8906152U1 (fr) 1989-11-16

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