DE8214872U1 - Carbon brush holder - Google Patents

Description

DIPL.-IXG. VT. GOIiLWTTZBR - DEPL.-TTfG. F. ~ W. MINOR

674O LAKDATT / PKALZ - TALFEBTKASSE 5

IOS ¹ CFACH SOSO - TELEFOK 06341/8 7000, 6O35 - TELEX 0453333 POSTSCHECK LUDWIGSHAFEK 27 5β2-β7β DEUTSCHE BANK LAKDATJ O2 154OO (BLZ 548TOO 93)

- 2 - May 19, 1982

Mr.

Heid & Co., G.m.b.H., limited partnership, carbon brushes and Brush holder factory, Neustadt / Weinstrasse

"Carbon brush holder ¹¹

The innovation concerns a carbon brush holder made of plastic, such as that used on electrical machines used to hold carbon brushes that interact with corresponding rotating parts of the machine will. The plastic body takes guides off electrically conductive material for the carbon brushes and carries pressure bar, cLle on the carbon brushes, under the force of a Return spring standing, press. Due to the plastic body, there is no electrical contact between Carbon guides and pressure brackets, if the latter are equipped with a plastic cap.

The object of the innovation is to provide a display by providing an electrical connection 2visshert carbon or carbon guide and pressure bar to be produced when the carbon ^{1 has reached a certain degree of wear}

The innovation solves the problem in such a way that

I that a metallic leaf spring is attached to each pressure bracket

see is. for example when reaching the Endabnutzungs- \ degree of the carbon brush, standing under low mechanical bias to the carbon brush guide for bearing overall ι reached, further wherein the Federhaitestift for the Fe- I where the individual pressure clamp an electrically conductive "connection to the outside having.

The innovation will be explained in the following on the basis of the following description of one in the accompanying drawing schematically and for example reproduced embodiment of the innovation subject further explained.

In the drawing, a brush holder 1 is in cross section through one of the brush guides 9 with a pressure bracket shown. The pressure bracket 14 is arranged pivotably about the bearing pin 19 in the brush holder body 1, pressure bracket 14, tension spring 39 and spring retaining pin 27 are metallic.

The pressure bracket 14 is equipped with an electrically insulating cap 43 with which it presses on the carbon brush 42. There is therefore no electrical contact between the carbon brush 42 and the brush guide 9 surrounding it, on the one hand, and the pressure bracket 14, on the other hand. The pressure bracket 14 is also equipped with a leaf spring 44 which, together with the cap 43, can be fixed to the pressure bracket 14 by a single fastening means 45.

If the pressure bracket 14 reaches the position 14 'shown in dashed lines with corresponding wear of the carbon brush 42, then the leaf spring 44 comes into electrical contact with the brush guide 7 with little mechanical pretension. It is then simply sufficient, for example, shown purely schematically on the spring clip 37

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electrical connection 46 to be provided. This creates an electrical display option that shows that the End and replacement position of the carbon brushes 42 indicates.

Claims (1)

DTPX1.-TSG. W. GOLLWTEZEK - DIPL.-UfG. F. "W. MÖI1 S7-TO LAKBAXJ / PALATINATE LAXeSTKASSE 5 POSTFACE 2Ο8Ο - TEI ^ EFOIf 063 * 1/87000, 6Ο35 - TEtEX O45S333 FOSISVÜECE X.XTDWIGSHAFEX 2ί 502-β7β - TI-RTiTSIi H H BAKK T. «TC T» «TT OI 154OO (BLZ 548700 83) May 19, 1982 Mr. Heid & Co., GmbH , Konsnanditgesellschaft, Kohlebürstentmd Bürsteniialterfabrik / Neustadt / Weinstrasse "Carbon brush holder" Claim to protection Carbon brush holder with a body made of plastic, which is made of electrically conductive material for guides picks up the carbon brushes and carries pressure brackets that are on the carbon brushes, under the force of a return spring standing, press, characterized in that the pressure bracket with an insulating against the carbon brushes Cap and an electrical contact between the pressure bracket and the carbon brush guide when reaching the End position of the pressure bracket producing, prestressed leaf spring are provided and the spring retaining pin for the springs of the individual pressure bracket with is equipped with an electrically conductive connection to the outside.