DE3319036A1 - Rolling paintbrush for coating large surfaces - Google Patents

Abstract

Rolling paintbrush for evenly and smoothly coating large surfaces is constructed from a core cylinder (1) rotatably mounted on the mandrel (17) of a handle (8) and having attached to its outside surface bristle bundles (3) having a free length of preferably 5 mm and less. The bristle bundles (3) stand out radially from the core cylinder (1) and perpendicularly to its longitudinal axis, and are equidistantly arranged along evenly distributed envelope lines of the core cylinder (1) having a diameter of 15 mm and less.

Description

Rolling brush for painting large ones

Surfaces.

The invention relates to a rolling brush for painting large Surfaces, which consist of a core cylinder rotatably mounted on the mandrel of a handle, on the outer surface of which color-distributing agents are attached, is built up.

In known rolling brushes, the core cylinder can with a foam be covered as a color-distributing agent.

However, foams are relatively soft, so that the to be spread Paint is squeezed off irregularly, or an even, very smooth paint or glaze surface can only be achieved with considerable skill. For painting are also rolling brush of the generic type known whose core cylinder with a mohair plush is covered with approximately vertical fibers as a paint-distributing agent. To a with a simple connection of the mohair plush along a surface line of the Core cylinder looming in the paint surface after each rotation of the rolling one The mohair plush is designed in a spiral shape to avoid repeated joints attached to the core cylinder. However, this spiral configuration results in a Desired, sideways running away or

an inclination of such a rolling brush, so that a clean guidance of the rolling brush that compensates for any unevenness in the paint application is difficult.

Therefore, the present invention has for its object to be a To provide rolling brush of the type mentioned above, with the completely even, very smooth lacquer or glaze surfaces can be produced, and with the one neat guidance of the rolling brush every unevenness in the paint application can be leveled out is.

This object is achieved according to the invention in that the paint-distributing Means protruding radially from the core cylinder and perpendicular to its longitudinal axis Surface lines are bundles of bristles arranged equidistantly in rows, the free length of which is less than 8 mm. This is a neat guidance of the rolling in an advantageous manner Brush reached and it is relatively easy to do even large areas completely flat and to be covered smoothly with varnish or glaze. Preferably the core cylinders have one Outside diameter of 15 mm and less and the bristle bundle a free length of 5 mm and less.

This advantageously results in a mechanically very stable Core cylinder with short bundles of bristles, i.e.

a compact design of the rolling brush, with which a completely flat, very smooth lacquer or glaze surface can be produced.

The bristle bundles with a base of at least 1.5 mm in diameter are fastened in blind holes arranged in the core cylinder, this fastening can be done by punching or preferably by gluing the bundle of bristles. The bundles of bristles must by no means be led diagonally, but rather they are fixed equidistantly on uniformly distributed surface lines of the core cylinder so a straight guidance of the rolling brush is guaranteed. A significant advantage is achieved when the fastened near the opposite end faces Bundles of bristles arranged obliquely to the longitudinal axis of the core cylinder directed outwards are, so that there is a frustoconical groove on both sides. Because of this inclination the frontal bristle bundles are otherwise difficult to carry out and roll out corners Painting work possible. So that the rolling brush in the for making very The mechanical stability required for smooth lacquered or glazed surfaces is low Has weight, the core cylinder is rotatable as a on a mandrel of the handle mounted hollow body secured against axial displacement and stiffened by ribs made of plastic.

An embodiment of the invention is shown in the drawing. On the mandrel 17 of the egg handle 8 is on a central tubular part 6 by means of radial molded ribs 5 a core cylinder 1 concentric to the pipe part 6 rotatably mounted, the two end faces of which are closed by plugs 4.

This results in a mechanically stable structure that is relatively small Weight. To secure the core cylinder 1 against axial displacement is on the mandrel 17 a known clamp 7 is arranged. In the outer surface of the core cylinder 1 are equidistantly blind holes along uniformly distributed surface lines 15 present, to which the base of the bristle bundle 3 is adapted according to its dimensions, and in which the bristle bundles 3 are attached by their base. The bristle bundles 3 stand from the core cylinder 1, which has a maximum diameter of 15 mm, radially and perpendicular to its longitudinal axis and have between the outer surface of the core cylinder 1 and the concentric, cylindrical jacket envelope 13 of the rolling Brush has a free length of a maximum of 8 mm, preferably in the order of magnitude of 5 mm and less. In that the near the opposite end faces 14 on the core cylinder 1 attached bristle bundles 3 to the longitudinal axis of the core cylinder 1 are attached obliquely outwards, there is a width on both sides between 150 mm and 300 mm having rolling brush one each frustoconical chamfer, so that otherwise only complicated in an advantageous manner Corners and angles to be painted can be painted very easily by rolling out corners.

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Claims (5)

REQUIREMENTS:. ;.! r. 1. Rolling paintbrush for painting large areas from one to one the mandrel of a handle rotatably mounted core cylinder on its outer surface Paint-distributing means are attached, is constructed, characterized in that the paint-distributing means from the core cylinder (1) radially and to its longitudinal axis Bundles of bristles that protrude vertically and are arranged equidistantly in rows on surface lines (3) whose free length is less than 8 mm. 2. Rolling brush according to claim 1, characterized in that the core cylinder (1) has an outside diameter of 15 mm and less and the bristle bundles (3) have a free length of 5 mm and less. 3.3.Rolling brush according to claim 1 or 2, characterized in that that the bundle of bristles (3) with a base of at least 1.5 mm in diameter are fixed in blind holes (15) in the core cylinder (1). 4. Rolling brush according to one of claims 1 to 3, characterized in that that the bristle bundles fastened in the vicinity of the opposite end faces (14) (3) to the longitudinal axis of the core cylinder (1) arranged obliquely outward are, so that there is a frustoconical groove on both sides. 5. Rolling brush according to one of claims 1 to 4, characterized in that that the core cylinder (1) is a rotatably mounted on the mandrel (17) of the handle (8), Hollow body secured against axial displacement and reinforced by ribs (5) is made of plastic.