According to a method or an apparatus for fastening bristles in a bristle carrier (10) without using an anchor a heating (39) is provided in a tool part configured to transport the bristles. After inserting the bristles into anchoring openings (12) in the bristle carrier (10), the anchoring openings are closed by applying pressure.

The invention concerns a toothbrush head comprising a brush head housing, and a bristle carrier movable relative to the brush head housing around an axis of pivoting, the bristle carrier containing a plurality of tooth cleaning elements, wherein a first portion of bristles is arranged annularly and disposed in an outward leaning angle compared to the axis of pivoting by means of a wedge ring, and a second portion of bristles is arranged radially inwards of the first portion of bristles. The invention also concerns a method for manufacturing a toothbrush head.

A feeding device for feeding batches of bristle filaments to a bristle filament cassette includes a vertical magazine and at least one batch of bristle filaments arranged therein. In order to prevent individual bristle filaments from being pressed out of the batch of bristle filaments and to provide an ecologically optimized device, the batch of bristle filaments is held in a reusable and circumferentially enclosed batch carrier. A tufting device with the feeding device of a bristle filament cassette and a transfer device between the bristle filament cassette and the feeding device are provided. A corresponding method for fitting a brush is also provided.

The invention relates to a brush including a brush head body which includes a recess through which a bundle of bristles passes, the securing-side end of which is provided by means of a melt process with a thickened portion for securing the bundle of bristles to the brush head body, wherein the brush head body forms a collar which extends up to the thickened portion and circumferentially surrounds the bundle of bristles and which is provided at a distance from a brush head body surface projected over by the bundle of bristles at the use side, and is bonded to the thickened portion by means of a melting process.

A method and device for manufacturing bristle arrangements for brushes. The brush is populated with a carrier pad, and to enable simplification of the manufacture of bristle arrangements for brushes, the bristle bundles which are conveyed by a gas or air stream through the conveying device to the bundle-retaining plate, when being conveyed through the conveying device are electrostatically discharged, such that they are more easily conveyed through the conveying device, and in that they reduce the complexity in the fastening of bristle bundles in a carrier pad without anchoring, since the carrier pad on the rear side has material protrusions which are fused and thereafter interference-fitted in a bundle-fastening plane, in order for bristle bundles which have been incorporated into the perforations of the carrier pad to be connected in a form-fitting and/or force-fitting manner to the carrier pad in a simple manner.

A method and device for manufacturing bristle arrangements for brushes. The brush is populated with a carrier pad, and to enable simplification of the manufacture of bristle arrangements for brushes, the bristle bundles which are conveyed by a gas or air stream through the conveying device to the bundle-retaining plate, when being conveyed through the conveying device are electrostatically discharged, such that they are more easily conveyed through the conveying device, and in that they reduce the complexity in the fastening of bristle bundles in a carrier pad without anchoring, since the carrier pad on the rear side has material protrusions which are fused and thereafter interference-fitted in a bundle-fastening plane, in order for bristle bundles which have been incorporated into the perforations of the carrier pad to be connected in a form-fitting and/or force-fitting manner to the carrier pad in a simple manner.

This method of manufacturing a brush 1 comprises: a first step of forming a support body 10 in which through holes 14 are formed; and a second step of inserting a brush bristle 20 in a bent state into each through hole 14 from one side of the through hole 14 to cause a looped bristle to project from the through hole 14 on the other side.

This method of manufacturing a brush 1 comprises: a first step of forming a support body 10 in which through holes 14 are formed; and a second step of inserting a brush bristle 20 in a bent state into each through hole 14 from one side of the through hole 14 to cause a looped bristle to project from the through hole 14 on the other side.

Provided is a radial vane with which manufacturing is possible with superior economy, without incurring a cut loss associated with vane separation in a weld part of a thread bundle. With a longitudinal intermediate part of a contiguous bundle of threads being a fold-over part, both end parts of the fold-over part of the thread bundle are opened into radial shapes and superpositioned, leaving a space in the center part of the fold-over part, a ring-shaped fold-over part (12) is formed within the circumference of the space in the center part thereof. The outer part of the ring-shaped fold-over part (12) is welded in a ring shape, forming a ring-shaped core part (13). A through hole (11) is formed in the inner side of the fold-over part (12), and radial vane parts (14) are formed in which a plurality of thread materials (21) extend outward from the core part (13) toward the outer circumference side from all regions of the circumference direction. The ring-shaped fold-over part (12) is either an un-welded part or an incompletely welded part which protrudes in a dome shape in both surfaces and protrudes in an arch shape into the center, and is also efficacious as a boss part for gap adjustment when a plurality of radial vanes (10) are fixed in an axle, forming a brush head, as well as functioning simultaneously as a slide part which makes fixing easy, and as a grip part which anchors the fixed vanes.

Provided is a radial vane with which manufacturing is possible with superior economy, without incurring a cut loss associated with vane separation in a weld part of a thread bundle. With a longitudinal intermediate part of a contiguous bundle of threads being a fold-over part, both end parts of the fold-over part of the thread bundle are opened into radial shapes and superpositioned, leaving a space in the center part of the fold-over part, a ring-shaped fold-over part (12) is formed within the circumference of the space in the center part thereof. The outer part of the ring-shaped fold-over part (12) is welded in a ring shape, forming a ring-shaped core part (13). A through hole (11) is formed in the inner side of the fold-over part (12), and radial vane parts (14) are formed in which a plurality of thread materials (21) extend outward from the core part (13) toward the outer circumference side from all regions of the circumference direction. The ring-shaped fold-over part (12) is either an un-welded part or an incompletely welded part which protrudes in a dome shape in both surfaces and protrudes in an arch shape into the center, and is also efficacious as a boss part for gap adjustment when a plurality of radial vanes (10) are fixed in an axle, forming a brush head, as well as functioning simultaneously as a slide part which makes fixing easy, and as a grip part which anchors the fixed vanes.