DE2814009A1 - PLASTIC HAMMER BRUSH HOLDER - Google Patents

Description

2814003

SIEMENS AKTIENGESELLSCHAFT Our symbol Berlin and Munich VPA 7g ρ 3 0 6 0 BRD

Plastic hammer brush holder

The invention relates to a plastic hammer brush holder with at least one winding ends inserted into recesses in the hammer brush holder suppression choke held on this.

In a known plastic brush holder of this type (DE-Gbm 69 46 091) the brush holder is provided as a semi-finished part with grooves lying transversely to one another, from one for holding the line ends of the interference suppression choke and the other for guiding the other connecting lines should serve. To hold the interference suppression choke on the hammer brush holder it is provided that the grooves are closed after the winding ends have been inserted, for example by fusing the plastic will.

The object of the present invention is to provide a hammer brush holder to create that in compared to the known solution simplified manufacture and assembly

Bk 2 Bim / 3/30/1978

809840/0394

2814003

- -2- - VPA 78 P 3 0 δ 0 BRD

Attachment of interference suppression chokes with different and / or relatively rigid inductor wire ends allowed.

The solution to the problem posed is with a plastic Hammer brush holder of the type mentioned above is possible according to the invention in that on the plastic hammer brush holder at least partially elastic, different diameters of the winding ends of the Suppression choke adapted fastening pockets are formed, in which the winding ends in the sense of a fixed Holder of the interference suppression choke can be inserted; this makes it possible to vary over a certain range Throttle wire diameter when using only a single unit hammer brush holder without further additional processing on the brush holder simply by sticking the winding ends in the Bags to hold the interference suppression choke in place.

The invention and further advantageous refinements are explained in more detail in the drawing with the aid of a schematically illustrated embodiment. In this demonstrate:

Figure 1 shows a plastic hammer brush holder in one Longitudinal section,

Figure 2 shows the plastic hammer brush holder in Figure 1 in a plan view of the brush holder back, Figure 3 is a detailed sectional view along the cutting line

III - III and

FIG. 4 shows a detailed sectional view along the cutting line

IV - IV of the brush holder shown in FIG.

$ 09840/0394

28U009 - ^ - VPA78P3060 BRD

The hammer brush holder 1 is made of a plastic and has at one end a half-shell-shaped recess 2, which is not for inserting a Cutting edge shown in more detail is used for pivoting storage on a brush bridge, and at its other end a pocket-shaped recess 12 into which a carbon brush 5 simultaneously with one of the power supply serving strand 7 is pressed. On the back of the hammer brush holder 1 is between its two the aforementioned ends of an interference suppression choke 4, one of which ends in a winding -41 in an eyelet 43, to which the outer Stromzuführurigsleitung can be soldered, and the other winding end 42 by means of of a clip 8 is connected to the free end of the strand 7 led out through a recess 6.

The inductor winding wire and thus the winding ends 41, 42 are relatively flexible, so that the inductor secured by fixing the winding ends 41, 42 in their position on the back of the hammer brush holder can be.

To fix the interference suppression choke .4 over its winding end 42 of the choke winding wire on the brush side End of the hammer brush holder 1 is provided that the side next to the recess 6 for implementation the strand 7 contacted with the carbon brush 5 has a fastening pocket 2 in one piece on the hammer brush holder 1 is cast on; for this purpose it is provided according to one embodiment of the invention that the fastening pocket 2 of two spaced apart, with their foot end on the outer contour of the hammer brush holder 1 there is formed webs 21, 22, the free ends of which initially have an insertion funnel 23 form for the winding end introduced from the outside, then in a narrowed area 24 with im

Θ09840 / 0394

2814GQ3 έ - M - VPA 78 P 3 O 6 O BRB

Compared to the maximum diameter of the winding end 42 reduced mutual distance and then into a depot space area 25 provided with undercuts and formed by them with a comparison go over to the maximum diameter of the winding end 42 of the same size or increased clearance. The fastening pocket 2 is therefore, as in particular, from the sectional view according to Figure 3 emerges, designed so that winding ends with over a certain area different diameter in the same execution of a fastening pocket through the insertion funnel introduced and stored after overcoming the constriction secured in such a way that the throttle is radial through the winding end stored in the depot area 25 and axially through a possible stop of the one end face of the throttle 4 is secured against the webs 21, 22.

Per se, the other end of the winding 41 on the edge bearing end of the Hammer brush holder 1 a similar fastening pocket as described above can be provided. Especially However, a simple casting technique in the production of the entire hammer brush holder 1 is one further fastening pocket arrangement is provided, which is characterized according to one embodiment of the invention is that at least two each in a different, the diameter of the winding end 41 corresponding spacing of opposing webs 31, 33 or 32, 34 to the outer contour of the hammer brush holder 1 are molded on. As can be seen in particular from the sectional view according to FIG. 4, this is expedient provided that the space between the webs 31 and 33 is greater than that between the webs 33 and 34; this means that up to a certain size of the diameter of the winding end 41 this

909840/0394

28U009

-JSr- VPA 78 P 3 0 60 BRD

to the fixed holder in the right narrower gap between the webs 32 and 34 and after exceeding this diameter dimension are to be clamped in the left gap formed by the webs 31 and 33. Simultaneously The space between the middle webs 33 and 34 can also be different from the two be formed other slot-shaped spaces and a further third diameter dimension Winding end 41 be adapted. However, in the embodiment according to FIG formed fastening pocket shaped in the embodiment according to Figure 3, whereby an even more universal Use of the standard hammer brush holder for a even greater range of variation with regard to the diameter of the winding ends to be held or Suppression chokes results.

The soldering of the outer connection line to the eyelet or the connection of the strand 7 to the end of the winding 42 by means of the clip 8 is expediently carried out only after the interference suppression chokes have been inserted with their Winding ends 41, 42 in the fastening pockets 2, 3. The entire assembly process of the with an interference suppression choke provided hammer brush holder can due to the advantageous inventive embodiment of the plastic hammer brush holder machine with simple means. take place.

4 figures

4 claims

903840/0394

Blank page

Claims (4)

Claims (■ 1. ) Plastic hammer brush holder with at least one interference suppression choke held on it via its winding ends inserted into recesses of the hammer brush holder, characterized in that at least partially elastic, different diameters of the winding ends (41, 42) of the interference suppression choke on the plastic hammer brush holder (3) (4) adapted fastening pockets (2, 3) are formed into which the winding ends (41, 42) can be inserted in the sense of a fixed mounting of the interference suppression choke (4). 2. Plastic hammer brush holder according to claim 1, characterized in that the fastening pocket (2) consists of two spaced apart, there are webs (21, 22) formed with their foot end on the outer contour of the hammer brush holder (1), the free ends of which initially have an insertion funnel (23) for the winding end (42) introduced from the outside, then in a narrowed area (24) with compared to the maximum diameter of the winding end (42) reduced mutual distance and then in a depot area (25) provided with undercuts with a compared to the pass over the maximum diameter of the winding end (42) of the same size or increased clearance (Fig. 3). 3. Plastic hammer brush holder according to claim 1, characterized in that the fastening pockets (3) are at least two each in different, the diameter of the winding end (41) corresponding distance opposite Bars (31, 33 or 32, 34) are molded onto the outer contour of the hammer brush holder (1) (Fig. 4). 909840/0394 ORIGINAL INSPECTED 281400S - 2 - VPA 78 P 3 O δ 0 BRD 4. Plastic hammer brush holder according to one of the claims 1 to 3, characterized in that the interference suppression choke (4) in the longitudinal direction of the brush holder back between its ends arranged and at which the carbon brush (5) receiving one end next to a recess (6) for implementation the stranded wire (7) contacted with the carbon brush (5) has a fastening pocket (2) according to the design according to claim 2 and at the other end serving for the pivotable mounting a fastening pocket (3) according to the embodiment according to claim 3 is provided is (Fig. 2).