DE1181162B - Method for producing a ring brush for shoe shine machines - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school Class: A 46 b

Number: File number: Registration date: Display day:

German class: 9b-7/02

1181162
H47130III / 9b
October 12, 1962
November 12, 1964

A foot brush is known which is inserted into a stationary sleeve and which consists of a bundle of bristles provided, seated in the lower sleeve part and on the two long sides of the base plate consists in rows exclusive, also provided with bristle rods. The rows of bars are held together by arc-shaped steel brackets, which the rows of bars with their inwardly protruding Resilient bristles to form a half-ring brush, the one with the bristle-studded base plate include a semi-cylindrical cavity. This finds out when inserting something to be cleaned A resilient extension of the foot, as there is enough between the rows of rods and the inside of the sleeve Game is provided for evading the bars to the outside.

There are also ring brushes for shoe shine machines known, the bristle bundles on the inside are arranged. These ring brushes have a one-piece brush back with relatively small diameter, whereby the production of the to receive the bristle bundle Required holes is made difficult because they have a conical, inwardly expanding shape and can therefore only be produced by machine from the inside. Also the manufacture of the ring brush body from plastic in molds is associated with analogous difficulties because the to Formation of the mentioned holes specific mold cores afterwards to the inside from the finished brush backs have to be pulled out and the space required for this is hardly sufficient. In addition, one-piece ring brushes have the disadvantage that even with unevenly over the whole Circumference of distributed bristle wear, the entire ring brush is always replaced with a new one must become. The wear is always uneven, especially when it comes to ring brushes for shoe shine machines, in which the brush does not rotate, but in the area of an or several circular segments reciprocating rotary movements. Here the concerned Circular segments have different types of bristles.

The invention overcomes these difficulties in that known brushes that one have flexible backs of reduced thickness on the bristle side between the plug holes, Curved into one ring segment each, strung together and forming a closed one Ring can be used in a retaining hoop by which they are held together in the ring shape.

This makes it possible to use any brush ring method for producing a ring brush
for shoe shine machines

Applicant:

Fritz Herrmann,

Neuenhain (Taunus), Hubertusstrasse

Manned as inventor:

Fritz Herrmann, Neuenhaiin (Taunus)

Claimed priority:

Switzerland of 5 September 1962 (10 534)

segment for itself and to replace it, as well as benefit from the advantages of the make use of the known brushes mentioned by the flexible back of each segment first provided with the conical holes in the stretched position and equipped with bundles of bristles and then can be inserted into the annular holder as required.

The one produced by the process of the invention The brush is characterized in that the ring segments are spaced with interposition at least one preloaded compression spring are strung together. It is appropriate that the Retaining hoops and the ring segments by projections of one part and corresponding indentations of the other part are connected to each other. The projections as ribs and the indentations are advantageous designed as grooves or grooves.

The method according to the invention is explained in more detail below with reference to the drawing, for example explained. It shows

F i g. 1 a starting product in side view,

F i g. 2 in the same illustration the end product,

F i g. 3 shows a cross section along the line III-III in Fig. 2,

F i g. 4 shows the starting product of a further exemplary embodiment in a view from the concave side,

F i g. 5 the side view,

F i g. 6 in the same representation as FIG. 2 the process product and

F i g. 7 shows, on a larger scale, a section along the line VII-VII in FIG. 4th

409 727/27

I 181

In the embodiment according to FIGS. 1 to 3, a brush with a flat brush back 1 went out. The back of the brush is on the inside width between the holes for the bristle bundles 2 each provided with a transverse slot 3 running across the entire width of the back. Then the The back of the brush is curved into a ring segment with bundles of bristles on the inside. The radius of curvature depends on the predetermined radius of the brush ring to be produced. Further ring brush segments are produced in the same way. Then there are each a sentence of ring segments that complement each other to form a ring brush with a predetermined mutual space, lined up and inserted into a retaining hoop 4. The ring segments are at each end provided with an end bore 5, a helical compression spring 6 being inserted into adjacent bores will. The compression springs 6 are held under such bias that the ring segments in the ao a predetermined extent rest against the inside of the retaining hoop 4 in a non-positive manner. This is with after provided internally projecting ribs 7, which by rolling in notches 8 of the Outside can be formed. The brush ring segments are provided with matching ring grooves or grooves on the outside. This will be the ring segments inevitably secured against axial displacement and the non-positive adhesion the ring segments increased in the peripheral direction compared to the retaining hoop 4.

Conversely, the retaining hoop on the inside with annular grooves or grooves and the brush segments can also be used be provided with ring ribs on the outside.

In the second embodiment according to FIGS. 4 to 7 is supported by a flat back of the brush assumed that the hollow pin 9 which forms on the inside with brush bundle mounts is provided is. These are dimensioned so long that in their cavity 10 and the latter extending to the outside conical hole 11 each a brush bundle can be used. The thickness of the back of the brush between the tenons 9 is kept so small that the flexural rigidity of the brush back at these points is the predetermined Bending resistance does not exceed. The back of the brush is then deformed with the formation of brush ring segments and the holder in a tire or the like with the interposition of peripheral compression springs. Here, too, annular grooves 12 are provided in the back of the brush, in which corresponding inwardly projecting annular ribs of the retaining hoop (not shown) intervention.

Claims (4)

Patent claims: 1. Method for making a ring brush for shoe shine machines with on the circumference The bristle bundles arranged on the inside, characterized in that brushes known per se, one on the bristle side have flexible backs (1) of reduced thickness between the plug holes (10, 11), Curved into one ring segment each, strung together and forming a closed one Ring can be used in a retaining hoop (4), through which they are held together in the ring shape will. 2. ring brush, produced by the method according to claim 1, characterized in that the ring segments with spacing with the interposition of at least one preloaded each Compression spring (6) are strung together. 3. Ring brush according to spoke 2, characterized in that the retaining tire (4) and the Ring segments by projections (7) on one part and corresponding indentations on the other Partly connected to each other. 4. ring brush according to claims 2 and 3, characterized in that the projections (7) are designed as ribs and the indentations as grooves or grooves. Considered publications:
German Patent No. 13,546;
Swiss Patent No. 12 295;
U.S. Patent No. 3,000,030. 1 sheet of drawings 409 727/27 11.64 © Bundesdruckerei Berlin