Abstract: The oral hygiene device, particularly a toothbrush, has in the neck part, a cavity, which is closed off from the surroundings and in which a snap dome is arranged. This snap dome produces an acoustic warning signal when a limiting bending of the neck part is exceeded as a result of a limiting pressing force with which the head part is pressed, for example, against the teeth and gums is exceeded. On the one hand, this has the effect of protecting the snap dome, usually produced from metal, from corrosion and, on the other hand, the cavity serves as a resonance chamber to amplify the warning signal.

Abstract: A unitary two component article for personal hygiene, such as a toothbrush, wherein the same is formed by injection molding of two differing plastic materials. The plastics do not adhesively or chemically bond to each other. The two differing plastic parts of the toothbrush are mechanically connected, such as by interfitting portions of the two plastic components or by shrinking one plastic component about the other.

Abstract: A brush, in particular a toothbrush, comprising a head part with a cleaning structure featuring bristles, a hand part and a neck part, and a cavity located in the head or neck part comprising at least one outlet opening for an active substance. In one embodiment, the cavity incorporates an active substance element, which contains the active substance in a carrier material and releases said substance in a controlled manner when it comes into contact with water. In another embodiment, the cavity is adapted to the shape of an active substance element by means of defined external contours. The volume of the cavity is preferably 1-2 times and no more than 4 times greater than the volume of the active substance element, ensuring that the latter is preferably surrounded by water during use. This allows the active substance to be effectively metered and ensures the brush is easy to use.

Abstract: In the production of toothbrushes, the neck part and the head part are bent relative to each other from the original shape thereof by a predetermined angle (?) in the hot state of the toothbrush body. Thereafter, the force applied to the toothbrush body by the stretching device in order to bend the toothbrush body is removed so that the toothbrush body can bend back into the original shape thereof. The risk of fractures, in particular brittle fractures, can be greatly reduced by said action. The method is advantageous, in particular, if the toothbrush body was heated during processing by ultrasonic welding.

Abstract: A toothbrush has a removable end cap at its free end area directed away from the bristles, which end cap closes off an inner space of a grip element. The end cap accommodates an electrical control element, in particular a potentiometer, which can be adjusted via an adjustment element arranged rotatably on the end cap. The toothbrush also comprises an electrical power consumption unit, in particular an electric motor, which is designed to set the bristles in vibration. The energy supply from an energy reservoir arranged in the interior to the electrical power consumption unit can be adjusted continuously by means of the control element, as a result of which the vibration intensity of the bristles can be steplessly adjusted.

Abstract: The brush head of the toothbrush has filaments that are pointed at one end and led through clearances in the bristle carrier. These filaments have a length of about 10-20 mm. The tips of the pointed filaments produce a height profile other than that of a plane and the ends of the pointed filaments that are remote from the tips are melted.

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

Abstract: The wire of the interdental treatment part is inserted into a shaft opening of the injection molding tool, preferably into a strip of the injecting molding tool such that said treatment part projects with a mounting section thereof into a cavity connected to the shaft opening. Preferably, a first cavity section is configured is configured on the strip, and a second cavity section is configured on a cavity body, to with the strip abuts at least during the injection molding process. After injection of plastic into the cavity, and after the at least partial curing thereof, the handle part thus formed is moved by a distance in the direction against the cavity along with the interdental treatment part, and the handle part is removed from the opened injection molding tool.

Abstract: The tips of pointed bristles are mechanically processed in order to remove any corroded threads or residual threads from the tip. Mechanically processed pointed bristles are fed to a receptacle recess of a tool in bundles, and aligned by means of a pin guided in the receptacle recess. The pointed bristles are pushed through the passage of the bristle carrier plate, and the end section are subsequently melted by means of a heating die in order to attach the pointed bristles to the bristle carrier plate. The mechanical processing of the tips of the bristles enables an error-free further processing of the pointed bristles utilizing the bristling method, particularly the AFT method.

Abstract: The toothbrush according to the invention is equipped with a handle of which the surface is formed, at least in certain sections, in a facet-like manner by way of multiplicity of planar surface-area elements. The surface-area elements are arranged directly adjacent to one another and form a network of element edges. The multiplicity of surface-area elements reproduce, more or less, an essentially rounded handle form, this ensuring comfortable use of the toothbrush in different rotary positions in relation to its longitudinal axis.

Abstract: The invention relates to a toothbrush that is produced by AFT and has a head part and at least one carrier element connected thereto. A front surface of the head part is formed by the top surfaces of the at least one carrier element and has a non-planar three-dimensional configuration, 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 brush, in particular a toothbrush, including a head part with a cleaning structure with bristles, a handle part and a neck part, a cavity with at least one outlet opening for an active substance being located in the head or neck part. In one embodiment, the cavity incorporates an active substance element, which contains the active substance in a carrier material and releases the substance in a controlled manner when it comes into contact with water. The cavity may be adapted to the shape of an active substance element by means of defined external contours. The volume of the cavity is preferably 1-2 times and no more than 4 times greater than the volume of the active substance element, ensuring that the latter is preferably surrounded by water during use. This allows the active substance to be effectively metered and ensures the brush is easy to use.

Abstract: The inventive handle for a brush, in particular for a toothbrush or a domestic brush, has an integral handle body with a hollow space which is surrounded by a wall. Recesses which are offset in relation to one another and open into the hollow space are formed in the wall. The handle is produced from a plastic in an injection-molding process using an injection-molding die which has finger elements, with sections of these finger elements touching in a sealing manner when the injection-molding die is in the closed state and, as a result, these finger elements forming the recesses and the hollow space in the hardened handle.

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 transmission according to the invention for an electric toothbrush serves for the transmission and reforming of a rotational movement provided by an electric motor into a particularly careful and effective cleaning movement of a cleaning element. The ratio of the distance between the longitudinal mid-axis of an output shaft and the longitudinal mid-axis of a drive shaft of the transmission and of the distance between the longitudinal mid-axis of a shaft driving a cam of the transmission and the longitudinal mid-axis of the cam amounts to at least 10:1.

Abstract: The invention relates to a toothbrush having a handle and a head part, on which bristle filaments and at least one flexible cleaning element are arranged. According to the invention, the at least one flexible cleaning element is arranged on a carrier element which consists of a hard material and is connected to the head part. The invention also relates to a process for producing such a toothbrush.

Abstract: The invention relates to a toothbrush having a handle and a head part, on which bristle filaments and at least one flexible cleaning element are arranged. According to the invention, the at least one flexible cleaning element is arranged on a carrier element which consists of a hard material and is connected to the head part. The invention also relates to a process for producing such a toothbrush.