DE1457046A1 - Rotary brush - Google Patents

Description

The invention relates to rotary brushes and, more particularly, to rotary brushes for cleaning the peripheral surface of rotating metal drums like those in machines can be used for making reproductions using jar powder.

So far, brushes of this type have been made by attaching an animal fur or fur around it made the outside of a cylindrical core.

Usually rabbit pelas were used for this, because rabbit fur is comparatively cheap and this one

Fur practically no abrasion on a Bietall drum

Patent attorneys Dipl.-Ing. Martin Licht, Dipl.-Wirtsch.-Ing. Axel Hansmqnn, Dipl.-Phys. Sebastian Herrmann 8 MÖNCHEN 2, THERESIENSTRASSE 33 · Telephone ι 292102 · Telegram address: Lipotli / Munich

exercises. Rabbit fur, however, has the approval that it with the color powders used in production machines charges like above. As a result, the brushes had to be replaced frequently. In some countries it is Rabbit fur is also relatively expensive.

The invention is based on the object of a improved brushes of the type mentioned above, whose hair surface has a longer lifespan and which is also cheaper to manufacture than the previously known brushes.

An improved brush of the type in question is to be obtained, the one with less animal fur than the previous brushes, but still a permanent wiping effect on the surface of the purifying drum exercises.

With the brush according to the invention, it should be possible better than before to remove existing pieces of animal To make effective use of fur

More precisely, the hair surface in the brush according to the invention is partly made of animal fur and partly made from synthetic hair.

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Other objects of the invention emerge from the following description and the claims in connection with the accompanying note »

Drawing t

Fig. 1 is a side view of an embodiment of a brush according to the invention;

Fig. 2 is an enlarged view of one end the Bürstet according to the invention and

* ~ Hg * 3 is a smaller scale one Developing a pliable bull covering the outer surface the brush forms »

The object underlying the invention is achieved in that one del brush core alternately with narrow Strips of clay animal peIa and synthetic easera covered. The alternately attached strips will be helically wound onto the core so that they overlap in the direction of the core. The synthetic Fibers are not dense enough to properly clean the drum. But you can use the pelas, which is preferable consist of rabbit fur, so arrange that the fur is constantly in contact with the drum to be cleaned stands · In this way one uses the desired retention properties of the fur continues to exist, but at the same time it achieves a longer lifespan because the synthetic

B0 9B 1 1/0 50 1

Fibers charge far more heavily than animal ones Fur. In addition, you can get by longer with a given supply of rabbit fur because you get less with each brush Fur needs and uses narrower strips than with the brushes completely covered with fur. That way you can you can also use skins that you would have rejected because of mistakes Skins can be cut into narrow strips that lead to Production of rotary brushes designed according to the invention are suitable.

Reference is now made to the drawing. DIq reference number 11 denotes an embodiment of the brush according to the invention. Piping consists of a relatively light, rigid, tubular core 12 made of cardboard 6äer like. Two diametrically opposed rabbit fur strips and two intermediate strips 14 of synthetic acrylic fiber such as "Orion * (trade name) are glued or otherwise attached to the outer surface of the core 12. The strips are wound in a helical manner and form a hair surface. As the figure shows in more detail, the ka. stripe skin form. their adjacent edges are alternately arranged strips sewn together by liähte fifteenth the fur strips 13 are twice as wide as the fiber strips in the manner shown

11/0501

Preferably, the two fur strips are arranged so that their hair with respect to the Eadien of the brush 11 in opposite directions. This increases the effectiveness of the brush.

When the pairs of strips 13 and 14 are sewn together have been, they form a shell that can be attached to the outside of the core 12 «Bas happens on those discussed in the co-pending patent application O 2θ 986 Ib / 67o (filed Jan. 24, 1963) Way. When the shell formed by the connected strips 13 and H on the outer surface of the core 12 has been attached, the strips 13 and 14 extend helically about the axis 16 of the core. The angle of incline the helix is relatively small. The angle of inclination for each fur strip must definitely be taken 13 be sufficient that his baths overlap the other fur strips and thus when the brush is turned on the drum constantly at least a part of the rabbit fur strips 13 is in contact with the drum.

Even if the synthetic hair tissue strips 14 are preferably also made of acrylic fiber, as it is available in the volume under the name "Orion ¹¹ ", other fibers of comparable rigidity and strength can of course be used

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1457Q46

Durability to be used

From the above description it can be seen that the new type of brush leads to a considerable saving in costs for cleaning brushes of the type mentioned. Since the fur strips ei 13 are twice as wide as the strips 14 made of the synthetic material, the brush 11 according to the invention requires a third less fur than the previous brushes 23a narrower fur strips 13 are used, the rabbit fur can also be cut in such a way that flaws fall out, and you can therefore take advantage of a given Pell better than would be possible with relatively broad stripes, since the synthetic "Jfeserstreifen have a longer life, the life of the brush is significantly increased, without, however, reduced the cleaning action of the brush noticeably were"

While the invention is based on a special embodiment Example has been described, it goes without saying that it can be modified.

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COPY

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Claims (1)

1.! Rotary brush with a rotating core and a the surface of the semes paved, soft, dense characterized in that the soft, dense belt (13) only partially surrounds the earn (12) and a & e «i in IMngsriohtu & g extending, in Dmfangariohtung Consists of mutually protruding strips, which are wound in a helical manner on the lern, alternating SU the strip (13) of the soft, dense Baarub s strips (14) made of harder, coarser hearts are arranged, which are also helical are wound up on the learners. 2 «rotary brush naoh inspzuoh 1, characterized dal the stripes consisting of which thick hair BAD ORlGiNAL CCFY Patent attorneys Dipl.-Ing. Martin Licht, Dipl.-Wirtsch.-Ing. Axel Hansmann, Dipl.-Phys. Sebastian Herrmann * MÖNCHEN 2, THERESIENSTRASSE 33 · T.lafont 292102 · Telegram-Adrais ·: Upatli / MOndwn Felt strips (13) are, while the alternate with it arranged strips of synthetic fibers. 3 · Turning door according to claim 1 or 2, characterized in that the hair is thick and thick. Strips (13) arranged in such a helical manner are such that each strip overlaps the next adjacent strip of the same type in the axial direction of the core. 4 * Most rotatable after any of the preceding Claims, characterized in that the strips consisting of soft, thick hair are twice as wide as the streaks are made of hard, coarser hair. 5 · Rotary brush according to any of the preceding Claims, characterized by the fact that the strips of rabbit fur, consisting of soft, served bears consist, stripping the hair of each of these with reference to an axial plane laid through the core opposite the hairs of the next adjacent strip are oppositely aligned * 6. Swivel brush essentially as referenced sjof the accompanying drawing is described. .. 'BAD ORIGINAL 809811/0501