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: A method for making toothbrushes includes the steps of, providing a toothbrush, and providing an end-rounder secured to a support. The support is substantially fixed against movement. The toothbrush is moved towards the end-rounder such that free ends of bristles secured to a head of the toothbrush are rounded by the end-rounder.

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: Device for manufacturing brushes by means of successive operations, which mainly consists of a number of brush holders (9-11) which are provided on a means of transport and which can be moved between different posts (5-8) which are provided along the means of transport, more particularly working posts (6-8) where a processing can take place and/or waiting posts (5) where the brush holders (9-11) can be put in a wait position, characterized in that the means of transport is provided with means which make it possible to move the brush holders (9-11) independently from one another.

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: Method for manufacturing brushes, characterized in that a device is applied consisting of at least one carrier (2) with openings (3) which are mutually arranged according to a certain pattern, whereby the fiber bundles which have to be provided in a brush body (5) can be put in this carrier (2), and whereby this method further consists in the combination of at least four steps (6-8-9-11), respectively, the lateral separation of fiber bundles (4) from at least one quantity of loose fibers (7); the provision, in a mechanical manner, step-by-step, of the aforementioned fiber bundles (4) in the aforementioned carrier (2); the transfer of the fiber bundles (4) which are placed in the carrier by means of this carrier (2) to a holder (10); and, by means of this holder (10), the fixation of the fiber bundles (4) in the brush body (5), or at least in a portion of the brush body.

Abstract: A method and device for manufacturing brushes. The device includes at least one carrier (2) with openings (3) which are mutually arranged according to a certain pattern. The fiber bundles (4) are separated laterally from at least one quantity of loose fibers (7). The fiber bundles (4) are inserted in a mechanical manner, step-by-step, in the openings (3) of the carrier (2). An extremity of the fiber bundles (4) are transferred simultaneously in a mechanical manner from the carrier (2) toward a holder (10). The fiber bundles (4) are fixed in at least a portion of a brush body (5) by positioning the extremity of the fiber bundles (4) in a mold, such that the fiber bundles (4) extend through the holder (10). A synthetic material is injected in the mold and form at least a portion of the brush body (5).

Abstract: A method of trimming and end-rounding bristles and a device for carrying out the method are provided. The method includes providing a group of elongated continuous filaments arranged so that the longitudinal axis of each of the filaments is substantially parallel to the longitudinal axes of the other filaments and so that the ends of the filaments define a plane; advancing the group of filaments to an end-rounding device; end-rounding the group of filaments; and cutting the filaments to define a bundle of end-rounded filaments having a predetermined length.

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: A brush body feeding device for feeding individualized brush bodies from a collective supply (18) to a tufting station in a brush making machine comprises a discharging device (10) for successively discharging individual brush bodies from the collective supply (18). A delivering device (14) delivers brush bodies to the tufting station in a continuous stream of aligned brush bodies. A storage conveyor (36) is arranged between the discharging device (10) and the delivering device (14) perfoms a buffering function to compensate for any inconsistent operation of the discharging device (10).

Abstract: This invention refers to a device for selective separation of toothbrush bristles that allows the toothbrush bristles to be cut into different lengths and profiles in different selected areas. According to this invention, the device ;for selective separation of toothbrush bristles comprises a base with fixation means for a toothbrush having bristles, and a support assembled over the base, wherein the support comprises a pair of simetrically pivoting stems over a first geometric plane, the support being displaceable over a portion of the base along a geometric axle that is parallel to the first geometric plane, from a resting position to a position of contact between the stems and the bristles and a cam means cooperating with the respective portions of the stems, during at least part of the displacement of the support over the base, in order to cause the symmetrically pivoting movement of the stems.

Abstract: The brush manufacturing machine of the type wherein at least one rotary brush body carrying drum located at a machine workstation is cyclically supplied with empty brush bodies by a brush body feeding device and is cyclically rotated to cause each such brush body to be eventually presented in proper position before a filling tool for filling of the brush body with brush fibers, wherein the machine includes at least two drums located at sequential workstations, at least one filling tool at each workstation cooperating with each respective drum for delivering brush fibers to the brush bodies carried by the drums, at least one manipulator operable so as to periodically engage and transfer brush bodies from at least one drum to another drum following the one drum, and a transport device for carrying filled brush bodies away from a drum of the machine.

Abstract: The present invention relates to a bristle finishing fork for isolating bristles affixed to a toothbrush head within a bristle finishing region comprising two elongated prongs having tips spaced at a distance "A" defining the width of the bristle swath to be isolated, wherein starting at said tip, the distance between the prongs increases to a distance "B" defining the sidewall of the bristle finishing region.

Abstract: Method for manufacturing brushes of the type whereby use is made of a boring tool (2) and a filling tool (5), for making openings (3) in brush bodies (4) and providing brush bristles (6) in these openings respectively, characterized in that a circuit is provided to this end in which at least three brush body holders (11, 12, 13) are used, of which each time two holders present two brush bodies (4) to the boring tool (2) and the filling tool (5) respectively during a work cycle, whereas the other brush body holder carries off a filled brush body (4) and/or supplies an empty brush body (4), and in that the three brush body holders (11, 12, 13) are automatically carried to the next work station according to a closed circuit at the end of each work cycle.

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: A brush filling machine is provided wherein two brush bodies are supplied at one time to one lateral gripping face of a rotary turret while two other brush bodies are being filled with fiber tufts on an adjacent lateral gripping face of the turret. The turret is indexed after each completed brush body filling cycle to present a new pair of brush bodies to be filled with fiber tufts by a pair of filling tools I. A specific arrangement of the various operating units of the machine is disclosed which permits the spacing a between the pair of filling tools, to be minimized thereby reducing the required radial dimensions of the rotary turret. Due to the low inertia of the rotary turret, the indexing thereof can be performed within the time of one filling stroke so that indexing of the turret causes no wait state of the filling tools.

Abstract: Bristle articles can be manufactured in that the bristle carrier and optionally the ends of the bristles are melted and brought together under pressure, or the bristles are introduced into an injection or foaming mould for the bristle carrier and are embedded in the bristle carrier material by injection moulding or foaming. The cycle time of these processes is extremely long as a result of the thermal processes (heating, melting, injection moulding, cooling). It is possible to significantly reduce the same in that the tools for holding or producing the bristle carrier on the one hand and the clamping devices for the bristles on the other are moved on closed paths and the clamping devices at at least one common station are transferred to the path of the tools and at least during the thermal processes are jointly moved with the tools and are subsequently returned to their movement path.

Abstract: This invention provides an apparatus for and method of manufacturing a brush seal. The apparatus comprises an annular former 22 having a radially outer 24 and a radially inner 30 portion radially separated from each other by an amount G and held relative to each other by locating means 32, and further includes a travelling wire electro discharge machining device and a guide tube. A brush seal 10 is wound onto the former in the usual manner and the filament material 38 cut in the region of the gap G by the travelling wire 44. The wire is inserted between the filaments by first inserting a tube 52 therebetween and passing the wire 44 therethrough. Machining of the filament material is achieved by traversing the wire around the gap G.

Abstract: Brush filling apparatus comprising(a) longitudinally axially spaced rotary heads,(b) first structure to releasably couple three longitudinally extending brush cores to two of the heads, with the cores spaced about the axis,(c) second structure to rotate at least one of the heads about the axis, to rotate the cores between three index positions,(d) third structure to drill bristle receiving holes in a core at one of the positions,(e) fourth structure to fill bristles into the holes at a second of the positions, and(f) fifth structure to trim the filled bristles at a third of the positions.

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 switching device for the displacement of the brush body holders in brush manufacturing machines during the drilling and stuffing operations in the production of brushes. Necessary displacements can be accomplished simply and accurately for any shapes of brush bodies without requiring any machine modification or readjusting by utilizing a programmable logic control system and hydraulic linear force amplifiers.

Abstract: This invention provides an apparatus for and method of manufacturing a brush seal. The apparatus comprises an annular former 22 having a radially outer 24 and a radially inner 30 portion radially separated from each other by an amount G and held relative to each other by locating means 32, and further includes a travelling wire electro discharge machining device and a guide tube. A brush seal 10 is wound onto the former in the usual manner and the filament material 38 cut in the region of the gap G by the travelling wire 44. The wire is inserted between the filaments by first inserting a tube 52 therebetween and passing the wire 44 therethrough. Machining of the filament material is achieved by traversing the wire around the gap G.