Abstract: The device for fixedly holding the head of a toothbrush in a processing machine comprises holding parts with a support surface that is formed on a holding flange. The holding flange is inserted between the bristle carrier and the holding plate of the head of the toothbrush and supports the bristle carrier with the support surface thereof.

Abstract: The device for fixedly holding the head of a toothbrush in a processing machine comprises holding parts with a support surface that is formed on a holding flange. The holding flange is inserted between the bristle carrier and the holding plate of the head of the toothbrush and supports the bristle carrier with the support surface thereof.

Abstract: The device for fixedly holding the head of a toothbrush in a processing machine comprises holding parts with a support surface that is formed on a holding flange. The holding flange is inserted between the bristle carrier and the holding plate of the head of the toothbrush and supports the bristle carrier with the support surface thereof.

Abstract: Device for manufacturing brushes, which mainly consists of a number of tools along which is provided a transport means (7), onto which transport means (7) is fixed at least one brush holder (12), characterized in that the device (1) is provided with coupling means which make it possible to couple and uncouple the brush holder (12) concerned to and from the transport means (7), and in that, opposite to at least one tool, a drive (35) is provided to position and move the uncoupled brush holder (12) in relation to said tool (2-6), whereby this drive (35) is provided with locking means which make it possible to fix an uncoupled brush holder (12) to this drive (35).

Abstract: A method and a device are described for manufacturing of a toothbrush from a starting-material which comprises a handle that runs into a neck part which divides into two equal and diverging arms/head parts, in which the bristle-carrying surface (bottom surfaces) of the head parts is approximately in a plane which runs parallel to the main axis of the toothbrush and head, and in which bristle which extend approximately vertically out from the surface is inserted and is of approximately equal of different lengths.

Abstract: The invention relates to a toothbrush which is produced by AFT and has a head part and at least one carrier element connected thereto, in the case of which the front surface of the head part, said front surface being formed by the top surfaces of the at least one carrier element, has a non-planar three-dimensional configuration and/or is capable of assuming such a configuration during intended use. The invention also relates to a process for producing such a toothbrush.

Abstract: A method of exerting a uniform force on bristle bundles in a clamp. Holes in a locking plate in a clamp are adjusted such that when the clamp is engaged, a specific force is exerted on the bristle bundles. The adjustment allows the holes to be displaced by different amounts for a given displacement of the locking plate.

Abstract: The present invention relates to a method for producing brushes, in particular toothbrushes, by way of injection molding, wherein a brush body is formed in a mold cavity, bristle filaments are connected to the brush body for forming bristles, and at least one flexible element extending substantially in parallel with the bristle filaments is preferably formed by injection onto the brush body. It is the object of the present invention to improve the above-mentioned method such that contouring and/or finishing of the bristle filaments can be carried out without any impairment by the flexible cleaning elements. According to the invention said object is achieved in that the useful ends of the brush are finished, the at least one flexible cleaning element being removed from the operative area of the finishing tool during said finishing operation.

Abstract: Apparatus for rounding the ends of brush fibers made of thermoplastic material includes a system for moving a smooth treatment surface relative to brush fiber ends at a relative speed and for a selected time to cause the brush fiber ends to be heated to their plastic deformation temperature to cause the brush fiber ends to become rounded. The treatment surface includes at least a portion which has substantially no abrasion, grinding or impacting properties relative to the brush fibers but only substantially friction heating properties relative to the fibers. A method for rounding brush fiber ends is described using the described apparatus.

Abstract: Methods and machines are disclosed to attach tufts of individual bristles to a toothbrush with a resiliently flexible head, wherein the flexible head may be segmented with joints connecting adjacent segments or it may be angled or curved or combinations thereof, and to then trim such tufts of individual bristles to a desired length--or lengths in the case of brushes with multi-level tufts--and to then round the free ends of the individual bristles in each such tuft. The disclosed method and apparatus require only the modification of conventional toothbrush tufting machines having tuft insertion tools that travel in a defined direction and the modification of conventional trimming machines and methods.

Abstract: An apparatus (1) is used in the production of brushes for the preparation of completely processed bristle bundles. Bristle strand material (4) is thereby conveyed with the aid of a feed mechanism (5) to a grinding device (6) where its free ends are processed into what will become the ultimate useful ends. By this processing, the free length of the bristle strand ends, and thus their ability to deflect laterally during grinding as well, can be exactly adjusted to this work procedure. This processing can be adapted to differing bristle material, or even adapted to differences in the desired rounding off results. The actual length of the final bristle bundles does not play a role in this, since the cutting of the bristle bundles to length does not take place until a following work step.

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.

Abstract: Apparatus and methodology for rounding the bristle tips of twisted wire brushes. Each twisted wire brush is mounted in a carrier by means of a spindle which permits the brush to be rotated along its longitudinal axis. The melting of the synthetic bristle tips takes place in a heated chamber which includes one or more heated cylindrical cavities which may extend over a portion or the whole of the length of each brush. When the carrier approaches the chamber, the chamber is lowered over the carrier so that each of the individual brushes is inserted into a heated cavity. When inserted in the cavity, the brush is rotated on the spindle while it is heated. The rotation and heating causes the individual bristle tips to melt into a rounded ball without adhering to each other. Thereafter, the heating chamber is raised, the carrier is indexed, and the process is repeated.

Abstract: A method and fixture (10) for assembling compliant seals (30) includes an aligning member (12) having a grooved surface (14) for receiving a plurality of loose bristle elements (16). The bristle elements (16) are received within the grooves (26) and aligned thereby. First and second backing rings (20, 22) sandwich the aligned bristles (16) and are clamped by first and second clamping members (18, 24). The clamped rings (20, 22) and bristle elements (16) are then removed from the aligning member (12) and permanently secured together, forming the finished seal (30).

Abstract: A process for producing brush heads is disclosed which includes providing a bundle of brush material, which is separated into a plurality of bunches of brush material to provide respective brush heads. The plurality of bunches of brush material are inserted into apertures in an apertured plate, with support needles engaged in the respective bundles in the apertured plate. The number, length, shape and thickness of the needles are dependent on the nature, amount, length and shape of the brush material. The apertured plate with the bunches of brush material in the apertures thereof is then fitted to a shaping unit, with the brush material being slid into shaping sockets in the shaping unit, the tips of the bunches providing the respective brush heads assuming the configuration imparted thereto by the blind ends of the shaping sockets.

Abstract: This invention relates to a new and useful apparatus and method of manufacture of an end brush, comprised of thermoplastic bristles. The apparatus comprises a fiber feed guide eye for fiber skein, a fiber bundle adjustable aperture plate, electric induction heater coil surrounding a tapered splined male pin and a source of cold air blast, and the tapered splined male pin activated by a compression spring to force the heated tapered splined pin into the fiber bundle held in the adjustable aperture plate. The movement of the tapered splined male pin is limited by stops. The subsequent cooling of the tapered splined pin withdraws the fused end brush from the open adjustable aperture plate and the bristles of the end brush are severed from the skein of fibers, and the end brush attached to the tapered splined pin is subsequently knocked off of the pin by means of a hammer.

Abstract: Brush-manufacturing machine of the type equipped with a drum (1) for the transportation of the brush bodies (2) along the various processing stations, having the characteristic that the drum (1) is equipped with brush body holders (12-13-14-15) which at least at their clamping sides facing the brush bodies (2) can be revolved and/or removed from their respective sides with which they work in concert with the drum (1).

Abstract: Universal brush clamp characterized by the fact that it consists essentially of first and second elements between which a brush body is clamped, the clamping distance between these above-named elements being adjustable so as to be able to adapt the brush clamp for clamping brush bodies of any shapes and/or dimensions.

Abstract: An apparatus for positioning or holding a brush body for insertion of bundles of bristles is provided. The apparatus comprises a carrier movable relative to a fixed guide and having a pivotable brush body holding mounted to it. A follower slidably mounted on the carrier is biased to follow the fixed guide as the carrier moves. A pivotal connection between the follower and the holder causes the holder to pivot as the follower follows the fixed guide. Use of a specifically contoured fixed guide permits corresponding pivoting of the holder so that the brush body can be variably aligned to accommodate a range of bristle inserters.

Abstract: A brush manufacturing machine comprising a brush body carrier for holding a brush body by its opposite ends, the carrier including two clamping components disposed in line with each other for engaging the opposite ends of the brush body, the clamping components being carried on rotatable pins that move the components towards and away from each other and rotate the brush body.

Abstract: A machine for the manufacture of brushes having at least one brush head mounting structure for brush heads. The mounting structure is pivotal about two axes and furthermore is longitudinally movable. The machine comprises a bristle bunch holder for holding bristle bunches and movement devices for guiding the bristle bunch to a brush head. Between the bunch holder and the brush head there is arranged at least two heating elements with contact heating surfaces thereon. The heating elements are provided on a movable heating-element carrier which can be moved between an engaging position, in which one heating surface is adjacent to the brush head and the other adjacent to the bunch holder, and a rest position, which lies outside of the range of movement of the bristle bunch holder.

Abstract: Device for handling brush bodies made of flexible material, characterized by the fact that it mainly consists of the combination of means for liberating brush bodies one at a time, means which punch holes in this brush bodies and means which maintain the brush body in the correct location during the punching of aforesaid holes; and means which maintain the brush body in the correct location during the filling thereof with fibres.