DE1939200U - COLLECTOR BLADE WITH ANCHORING CLAWS EMBEDDED IN THE INSULATING FABRIC OF THE COLLECTOR HUB. - Google Patents

Description

^ • 561777 * 10/26/65

R ₀ no. 8485

19ο10ο1965 Ws / Ep

Annex to the utility model registration

ROBERT BOS C H__ GMBH, Stuttgart W, Breitscheidstrasse

Kollektorlamellenjnlt ^ J.m Isolierst off _ the collector hub

embedded anchor claws

The innovation relates to a roller collector for electrical machines, whose collector lamellas are made of a copper strip Embossing are made and peeled off in pairs from the underside of the anchorage claws and inserted into an insulating hub = are in bed ",

-

Robert Bosch GmbH 'R ₀ = No. 8485

- Stuttgart - October 19, 1965 Ws / Ep

It is known in pairs auszuschälen the anchoring claw of the collector segments of 'the laminations end faces with a rectangular trapezoidal or oval profile from the LaraeXIenmaterlai "It ssur avoidance is a short circuit between adjacent slats limited width of peeling at about 80% of the leaf width _B so that" laterally s Narrow shoulders remain standing "With particularly narrow lamellas, it is therefore not possible to peel off sufficiently strong anchoring claws. In collectors whose lamellae are exposed to particularly high centrifugal forces at high speeds, pairs of claws lying one behind the other are often peeled off from the lamellar material." The rear claw pair is peeled off then peeled a little narrower from the bottom of the hats that were created on the back of the lamellae by peeling off the front pair of claws pferBand balanced, which in turn results in additional claw stress at high speeds,

The task of the innovation is _{s to design} the anchoring claws in such a way * that sufficiently strong anchoring claws can be peeled out of the back of the lamella with the least possible amount of material

This is achieved according to the invention in that at least one pair the anchoring claws has a U-shaped profile. Dadureh it is possible - with a shallow peeling depth and little material expenditure to form strong Verarakerungskrallen, »

Robert Besen GmbH ■ R ₀ = No. ₆ 8485

Stuttgart 19.IO.I965

Such anchoring claws are over the whole width of the larvae peeled off * so that even narrow slats are sufficiently strong Anchoring claws can be provided =, It is an advantage «= adhesive- "to turn the claws in the end area on their sides inwards" bend * to further increase the strength of the lamellas in the axial and radial direction of the collector and also Avoid touching the anchoring claws of neighboring lamellas with safety. * The claws preferably have one curved profile base so that it is better guided when peeling and do not move sideways.

On the exemplary embodiments shown in the drawing the subject of the control explained in more detail

1 shows several in an enlarged spatial representation Collector lamellas, the bus embossed a copper band and are provided with four anchoring claws »

shows a roll collector in a spatial representation ^ its collector lamellas each with Ewei anchoring claws are fastened in the collector hub «, In

is a collector lamella of the R © llk © ll @ kt @ rs according to Pig » shown enlarged in space

In Fig. 1, the collector lamellae are denoted by 10. They are and are stamped in a stamping device from a copper tape only connected to one another on their tread 11 by bridges 12, which will later rotate abge. On the back of the slats are then initially through. opposite from the end faces 14

c 4 -

Bobert Bosch -GhnbH R ₀ = No. 8485

- Stuttgart I9.IO.I965 Ws / Ep

of the lamellae 10 working, not shown paring knife,

'Anchoring claws 15 peeled off in a known manner * You have a rectangular profile and are not peeled over the full width of the slats, so that there are narrow shoulders l6 at the sides .. -,remain. With two other counter-rotating and channel-shaped

. The external anchoring claws are then used for half-cut knives ■ 17 over, the full width of the lamellae peeled off in such a way that the lateral shoulders 16 are also lifted off. This gives the cons

• aakerungskrallen 17 a "U-shaped profile with a curved profile- ' Grund 18. Di® peeling depth for the external anchoring claws

.- 17 is very small * The shoulders 16 ″ are bent inwards towards the end of the anchoring claws 17.

The Pig, 2 shows a roller collector provided with a cutout, in which the collector lamellas 20 are pressed with an insulating hub 21 »The collector lamellas 20 each have on their rear side stripped and embedded in the insulation hub 21® anchoring

In Fig «, -3 is a collector ^{lamella 2O 9 of} the roller collector according to Figo 2 shown enlarged The swel anchoring claws 22 ⁸ are also peeled over the entire width of the lamellae and have a curved profile base 23 * The initially straight sides 24 are bent up towards the claw end ^ so that the anchoring claws are given a U-shaped profile.

Claims (2)

P.A.56Ί 777 * 10/26/65 Robert Bosch GmbH R ₀ = No. ,, 8485 Stuttgart. October 19, 1965 Ws / Ep "1. Roll collector for electrical machines, the collector waves of which are produced on a copper band by embossing and from the bottom of which anchoring claws are peeled off in pairs and embedded in an insulating hub, characterized in that at least one pair of anchoring claws (17, 22) have a ] Λυ-shaped a profile has » · ■ '■. ■ ' 2. Roll collector according to claim 1, characterized in that the anchoring claws (17, 22) are peeled with a misshapen profile over the entire width of the slats. 3 · Roll collector according to claim 1 and 2, characterized in that the anchoring claws (1Ϊ, 22) have a curved profile base (18, 23). 4 ο roll collector according to claims 1-3, characterized in that the lateral shoulders (l6 ⁸⁾ are bent in the end region of the anchoring claws (17) inwardly " 5 «roll collector according to claim 1 =» 3> characterized in that the anchoring claws (22) in the end region on their sides are bent up.