DE8528620U1 - Machine round brush - Google Patents

Description

The invention relates to a round machine brush, in particular for grinding and deburring machines, also referred to as a so-called braided brush , in which radially directed bristles formed from several individual wires pass through holes in a disk-like or ring-like carrier and the individual wires of the bristles on the outside in each case are twisted, the twisted portion is wholly or partially covered by the carrier coaxially arranged steel plates from the outside.

«I Il t * * # ♦ · * · ♦

ι ti ι * ι »· · φ i

I ifi I · · «a ···

till t I f · f

It Il fit ·· *** ··

In practice, there is premature wear of the individual bristles in the covered stranded area, so that Brushes of this type are generally not due to the wear of the individual bristles from the face, but rather through the damage caused by the sea is limited in its service life are * Obviously, these individual ranks lead to the routing Use of the round brush to prevent swaying lateral movements that lead to friction in the area of the necessary cover disks lead out of steel.

The object of the invention is to prevent this damage to prevent the bristles in the area of the covering steel discs.

To solve the problem of the invention, a round brush of the initially mentioned type proposed, which is characterized in that the steel discs inside with plastic or a other material with a lower hardness than the steel disks are lined.

According to a preferred embodiment, between the | Steel disks an annular insert made of plastic, cork or paper with a U-shaped cross-section is provided.

«I« I ft ** · ···

ItII ··· ·· t · ·

tit · · i * · ·

ι ir O * ft · * «·· *«

Due to the inventive arrangement of plastic linings in the area of the steel disks, the wear that occurs during operation of the brush is in the stranded lower fastening area of the bristles avoided, thereby achieving a considerably longer service life of the round brush according to the invention Will.

Based on an illustrated embodiment, the
Invention explained below. Show it:

Fig * 1 is a side view of a round brush
and

Fig * 2 shows a section along the line I - I
in Fig. 1

The illustrated round machine brush is designated as a whole with the number 1. In holes in the edge area
a disk-like carrier 2 are directed radially
Bristles 5 attached. These bristles consist of individual wires that are passed through the bores in tufts and are fastened in their lower region 51 by braided stranding.

1 1 ι t III ··· ft
II ■

Coaxially to the shaft receptacle 21 of the disk-like carrier 2, the steel disks designated as a whole by the number 3 are held from the outside on the carrier. These two steel disks 3 each form with their outer angled ends 31 a receptacle which is fork-shaped in cross section and with which they laterally cover the fastening area of the wallets 3. Inside, this area 31 of the steel disks 3 is lined with plastic. _{For this purpose, an annular plastic insert 4 t} with a U-shaped cross section is provided, which slightly protrudes outwardly beyond the steel disks or their section 21.

Claims (2)

Protection claims . Round machine brush, in which radially directed bristles formed from several individual wires are passed through holes in a disk-like or ring-like carrier and the individual wires of the bristle are each partially roped on the outside, the stranded area being wholly or partially through steel disks of is covered on the outside, characterized in that the steel disks (3) are lined on the inside with plastic (4) or another material with a lower hardness than the steel disks. 2. Round brush according to claim 1, characterized in that between the steel discs (3) an annular, im Cross-section of a U-shaped insert (4) made of plastic, cork or paper is provided.