Bristle treatment
AssigneeCoronet-Werke Heinrich Schlerf GmbH
InventorGeorg Weihrauch
Life of this patent
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Abstract
For the treatment of bristles of brushes, the bristles are fixed in spaced manner from the use-side ends, which are cut to size and subsequently treated by a planar abrading surface arranged at right angles to the bristle extension and all of whose points are moved on circular paths having the same diameter. For setting the contact pressure the abrading surface is fed in the direction of the bristles and for influencing the treatment result the bristles are laterally supported between their fixing point and their use-side ends in a variable spacing from the abrading surface, but which is always the same for all the bristles.
Claims21
Process for treating a use side end of bristles of brushes the process comprising the steps of:
- fixing the bristles at a distance from the use side ends,
- abrading said use side ends of said bristles by an abrading surface positioned substantially at right angles to an extension of the bristles and having all abrading points moved on circular paths of the same diameter,
- supporting the bristles by the abrading surface with a variable spacing, but which is always at an identical spacing for all of the bristles between a fixing point of the bristles and said use-side ends to control a configuring of the use-side ends.
Apparatus for treating use-ends of bristles of brushes, the apparatus comprising:
- a fixing device for fixing the bristles,
- a cutting device for cutting the bristles to a desired length and an abrading member with an abrading surface disposed substantially at right angles to an extension of the bristles,
- eccentric drive means for driving the abrading surface such that each point of the abrading surface moves on a circular path of the same diameter,
- a device for varying a spacing between the fixing device and the abrading surface,
- a support provided at a distance from the fixing device, said support surrounding the bristles substantially on all sides and being adapted to be movable in parallel to the bristle in a plane parallel to the abrading surface.
Apparatus according to one of claims 8, 11 or 12, wherein the support simultaneously serves a shear surface for the cutting device.
Dependencies are inferred from the claim text.