DE1200785B - Process for making ring brushes - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

Number:
File number:
Registration date:
Display day:

A46b

German class: 9Ö-3/12

1200785
G36799III / 9b
January 8, 1963
September 16, 1965

The invention relates to a method for producing ring brushes in which the bristle ends be clamped in the bristle carrier ring by an expanding stopper and this at the end on the handle side is closed by a cover designed as a handle holder.

In the case of brushes of this type, the handle has hitherto been in the cover plate, which is usually made of plastic and this is only clamped in the bristle carrier ring by tongue and groove. the end For reasons of production technology, it has not been possible so far, in every case a fixed and permanent one To achieve connection of the cover with the bristle carrier ring, as the diameter dimensions these components are subject to tolerances in mass production. The consequence of this is that either the handle in the cover or this in the bristle carrier ring sits loosely, so that a perfect Working with such a brush is not guaranteed.

In order to remedy this deficiency in ring brushes, it has already been proposed that of the stick Worn filling disc - which is provided with perforations in the bottom that are arranged in a radial pattern is - when driving in the conical handle to blast into individual Baeken, which are further Driving in the handle press against the jacket of the end cap, causing the latter against the bristle carrier ring is pressed.

However, this proposed manufacturing method can only be used for ring brushes which the bristles are attached to the bristle carrier ring by the driven-in handle, but not in Ring brushes in which the bristle ends are clamped in the bristle carrier ring by an expanding stopper.

The object of the invention is to remedy the deficiencies mentioned in the case of ring brushes of the type mentioned at the beginning Eliminate the genus and use a simple process to manufacture it which a permanent tight fit of all components, preferably made of plastic, with one another is guaranteed.

This object is achieved according to the invention in that in the remaining cavity of the to the bristle ends of the slightly conical bristle carrier ring - the one over the entire height its inner surface is provided with fine, closely spaced circumferential grooves - initially an insert washer that holds the thick end of the handle and is provided with a ribbed conical outer surface pressed against the bristle ends Process for the production of ring brushes

Applicant:

Rudolf Geitz,

Schwelm (Westphalia), Kölner Str. 68

Named as inventor:

Rudolf Geitz, Schwelm (Westphalia)

is and then against this disc with a passage opening for the handle and ribbed conical End cover provided with lateral surface is pressed in.

This method of fastening gives the insert disc carrying the handle in the bristle carrier ring permanent press fit. Existing tolerances in the outer dimensions of the insert washer are compensated, because the insert washer inevitably clamps in the bristle carrier ring and in the respective End position is held by the locked grooves.

In order to keep the press fit of the insert disk and the bristle ends in the bristle carrier ring consolidate, according to the invention, the plate-shaped insert disk in the bottom has several funnel-shaped Perforations into which the binding agent sticking together the bristle ends penetrates.

This design of the insert disk ensures that the insert disk is in the clamped end position the binding agent of the bristle bundle penetrates through the perforations of the filling disc and thus afterwards the hardening of the binding agent a mutual anchoring of the bristle bundle end with the insert disk is brought about.

A ring brush produced by the method according to the invention is in the drawing in one Embodiment shown, namely shows

F i g. 1 shows a cross section through the cover plate,

F i g. 2 shows a cross section through the insert disk carrying the handle,

F i g. 3 shows a cross section through the bristle carrier ring and the bundle of bristles fastened in this and FIG. 4 is a cross-section through the assembled Ring brush.

509 687/22

In the case of the ring brush, the bristle ends of the bristle bundle 1 soaked with a binding agent are partially in the bristle carrier ring made of plastic2 used and clamped there by driving in an expansion plug 3.

The bristle carrier ring 2 is slightly conical and over the entire height of its inner surface provided with fine, tightly spaced circumferential grooves 4 through which the bristle bundle end receives good adhesion in the bristle carrier ring 2. The thick end of the stem 5 is in a plate-shaped insert disc 6 held, which is provided with a ribs 7 having, conical lateral surface 6 '. When driving the insert disk 6 carried by the handle 5 (in the direction of the arrow, FIG. 2) into the The bristle carrier ring 2 engages its ribs 7 in the grooves 4 of the bristle carrier ring 2. The insert washer 6 also has several funnel-shaped holes 8 in the bottom, into which the bristle ends Adhesive binders can penetrate, whereby after the hardening of the same additionally a Anchoring of the insert disk 6 with the bristle bundle 1 is brought about.

The end of the bristle carrier ring 2 on the handle side is secured by a cover 9 designed as a handle holder completed, which is also provided with a slightly conical outer surface 9 ', are also attached to the circumferential ribs 10. If the end cover 9 after fastening of the insert disk 6 is driven into the bristle carrier ring 2, so the provided on its outer surface 9 'lock Ribs 10 into the grooves 4 provided in the bristle carrier ring 2.

The handle 5 penetrates the cover 9 in a force-like central passage opening, which holds and guides the stem 5 on a long storage route. All components of the ring brush are permanent, inextricably and rigidly connected to one another.

Claims (2)

Patent claims: 1. Process for the production of ring brushes, in which the bristle ends through an expanding stopper are clamped in the bristle carrier ring and this through at its handle-side end a clamped lid designed as a handle holder is closed, characterized in that, that in the remaining cavity of the bristle carrier ring (2) which tapers slightly conically towards the bristle ends (1) - the one over the entire height of its inner surface with fine, tightly spaced circumferential Grooves (4) is provided - first one, the thick end of the stem (5) holding, with ribbed conical outer surface (6 ') provided insert washer (6) against the bristle ends (1) is pressed in and then against this disc (6) with a passage opening for the handle (5) and ribbed conical outer surface (9 ') provided cover (9) is pressed. 2. ring brush, produced according to the method according to claim 1, characterized in that the plate-shaped insert disc (6) has several funnel-shaped holes (8) in the bottom, into which penetrates the binding agent sticking together the bristle ends (1). Considered publications:
German utility model No. 1 849 715. Legacy Patents Considered:
German Patent No. 1152 382. 1 sheet of drawings 509 687/22 9.65 © Bundesdruckerei Berlin