DE1617388U - BRUSH EQUIPMENT FOR ELECTRIC TOY MOTORS, IN PARTICULAR TOY OR MODEL RAILWAYS. - Google Patents

Description

Kari A, Brost da IJIIQ01 111 R (I f

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Br./Me, Moers, November 10th, 1950

Re. j Bürs part device for electric toy motors, especially toy or Iode 11 railways.

Anmeldert Bobert K ahr m ann & Go., Iobberich

In the case of electric toy motors, such as those in electric game ag or model railways use find it is known * the brushes under the pressure of a To bring the spring to the collector to the plant, here you either used the spring itself as a brush, or but arrangements were made in which one was mostly within a cap nut arranged compression spring a carbon or wire brush presses on the collector. The latter type was especially common for toy and model trains

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According to the knowledge on which Neueroag is based, such a design is to be regarded as extremely disadvantageous insofar as a moment that is so essential for the operation of the motor as the brush pressure in general and especially when changing the brushes is exposed to the arbitrariness of the general rule however, particularly in the case of engines of such small dimensions, it is extremely disadvantageous. If the brush pressure is set too high, most of the motor torque is consumed by the friction of the brush on the collector, while a brush pressure that is too low can lead to bad contacts, sparks and premature burns to the brush and collector spring an off his glühen'aus set. also the fact "that in the known design, the spring had to take a substantial part of the brush current with the associated färmewirkungen is to say, exceptional detrimental to look at. ^l

The heating relates to a brush device for electrical Toy motors of all kinds, in particular toy or ModellisenbahnM, in which the brush is held by a spring on the Collector is pressed and has set itself the goal of eliminating these disadvantages. According to the fire according to the invention this is achieved by putting the spring outside

the area of external access is arranged withdrawn from improper intervention by the layperson and the professional handling of the manufacturing site or the repair specialist keep the gate. In particular, here the spring pressure set in the factory at the Replacement of brushes not changed · In addition another step in the back of the innovation goes there »the spring to be arranged outside of the flow of electricity and heat, so that it is no longer subject to their harmful effects. In the context of these basic ideas of the innovation are the most different Structural embodiments given in a particularly preferred embodiment example, the fire can be achieved in such a way that the spring is arranged parallel to the brush shaft and via a lever on di © Brushing works. In addition to the advantages already mentioned, firing also offers further advances »so will in particular larger for the dissipation of the corresponding heat Areas created and it is also possible to use the the width of the space required by the burst device significantly reduce what affects the choice of (overall dimensions of the vehicle has a beneficial effect.

Further details of the firing system can be found in the Drawing can be seen in which the firing is compared with a known burst device, for example is explained * Is shows s

Fig. 1 a brush device of known type Fig. 2 a brush device after firing

In both embodiments, I denotes the collector of the motor and B denotes the barst ©

In the embodiment according to Fig. 1, the compression spring F printed by the cap nut I on the brush B namely About the leadership &. So here is the regulation of the bridge the spring F subjected to an action by every layperson, This means that you can see all of the bad parts described at the beginning. «JDi © Spring F is also within the flow of electricity and heat of the collector and is therefore particularly improper low setting of the spring pressure of the risk of burnout exposed · Whenever brush B is replaced

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to expect that the pressure of the spring F is set incorrectly

In the embodiment corresponding to the fire & a © h Fig. 2, the spring 1 is beyond the possibility an external engagement and parallel to the axis of the brush I. arranged. At the same time, it is also outside the and heat flow and acts via the lever, which is designed as a lever Sleeve £ 1 on brush B. The size of the cap nut H 1 is significantly smaller than that of cap nut I. Aweekmässlg slotted »to hold the brush B * Avoidance the possibility of external access, protection against damage due to the flow of heat and electricity, large cooling surfaces The lower width stresses are those on the basis of the comparison Fig. 1 and 2 clearly visible essential advantages of the innovation *

The firing is by no means exhausted with the exemplary embodiments described and illustrated; all kinds of small and toy niggers application can find and thank those on which it is based construct can still be realized in manifold forms

Claims (2)

Protection claims! 1 · Brush assembly for electric toy motors, in particular Toy or model trains in which the brush is pressed by spring pressure on the collector, characterized »that the spring is arranged outside the area of an external access · 2. Device according to claim 1, characterized in that the spring is arranged outside of the flow of current and Mrme. 5. Device according to claim 1 and 2, characterized in that that the spring is arranged parallel to the brush axis and acts on the brush via a lever