SK5791Y1 - Head of the electric toothbrush - Google Patents

Abstract

Head to the electric toothbrush using the handles (1) mounted in the body electric toothbrush. The handle (1) is fitted with a shaft (2), which is the axis of rotation and which are mounted rotary bristle brushes (3), which are partly covered with a protective cover (4).

Description

Technical field

The proposed technical solution concerns the field of personal oral hygiene articles - electric toothbrushes.

BACKGROUND OF THE INVENTION

Nowadays, in addition to classic manual toothbrushes, electric toothbrushes are used for brushing teeth. Electric toothbrushes use an active movement of the cleaning head to brush teeth to increase the efficiency of tooth brushing. In the case of electric toothbrushes, the movement of the brushing head is due to the rotary movement of the electric motor integrated in the hand and powered from the replaceable batteries or integrated accumulator. eccentric disc, possibly other and subsequently on the brush, which performs rotary or oscillatory movements or a combination thereof, for example, the cleaning head can perform a rotary reciprocating motion with different deflection angle most often from 35 ° to 65 ° (according to manufacturers data) up to 7500 / min. Cleaning heads - electric toothbrush handpieces are manufactured as self-replaceable parts, which are replaced after a period of time after wear of the bristles and for hygienic reasons. The brush itself has bristles arranged in tufts - bundles which are perpendicular or approximately perpendicularly embedded in plastic on a flat surface of a circular or oval shape, similar to manual toothbrushes. Some technical solutions of electric toothbrushes are described in the following patent documents: EP 0 560 758 B1, US 6 795 993 B2, US 7 024 718 B2. Another and latest type of electric toothbrushes are sonic toothbrushes, which instead of a simple electric motor use the principle of sonic technology or sound energy in the high frequency range of 30 - 40 thousand oscillations per minute. The source of the high frequency is an electronic chip that generates electromagnetic waves that vibrate the bristles in the handpiece. These vibrations are transmitted to the dental plaque particles and cause them to separate.

The biggest advantage of electric toothbrushes is that they shorten the brushing time because the cleaning effect is much higher than when brushing with a manual toothbrush. The disadvantages of electric toothbrushes are the high frequency of movement of the head from 2500 to 7500 rpm, which ensures high removal efficiency, but also causes mechanical damage to the tooth surface, excessive abrasion of tooth enamel especially where tooth enamel is the thinnest and most sensitive , in the area of dental necks.

Similarly, when using sonic toothbrushes, tooth enamel can be damaged by sensitive teeth due to the high frequency that vibrates solid particles.

The essence of the technical solution

The essence of the invention relates in particular to an electric toothbrush head and consists in that the electric toothbrush cleaning head is designed as a radial rotating brush of cylindrical or approximately cylindrical shape, which has resiliently flexible bristles mounted on a shaft which is and the brush rotation axis. The shaft is mounted in the handpiece and is driven by an electric motor integrated in the handle. Another important part of the cleaning head is a cover that covers a portion of the brush and serves to protect the inside of the cheeks and tissues of the oral cavity while brushing teeth. The brush is used by applying appropriate pressure to the teeth and the bristles rotate relative to the teeth in a vertical direction from the gums to the ends of the teeth, which is recommended as the most suitable way of brushing the teeth. By attaching the brush to the teeth when brushing from different sides and to different parts of the teeth, e.g. the upper teeth from the front from the back, as well as the lower teeth and the movement of bristles should always be directed from the gums to the ends of the teeth during brushing must change the rotation direction of the brush, so reversing revolutions - change direction. Technically, it is possible to change the direction of brush rotation electrically by reversing the speed of the electric motor, or mechanically by means of suitable gearing. In practice, the user is best able to change the speed by pressing the ergonomically positioned speed switch on the electric toothbrush handle, by switching the user to change the direction of rotation of the brush as needed. The reversing speed must be instantaneous and without shocks. The brush speed is in the order of tens to hundreds of revolutions per minute. The dimensions of the brush must be compact and proportionate to the intended use, for example the length of the bristles should be 15 mm and the brush diameter 15 mm.

The advantage of the proposed technical solution is that the brush bristles move the gums from the gums towards the end of the teeth, which is recommended by dentists as the most suitable for effective removal of the dental plaque and the speed of bristles movement is lower and even more gentle to tooth enamel. electric toothbrushes that perform high frequency movements. The disadvantage may be the need to change the direction of rotation of the brush by the user, using a switch.

SK 5791 Yl

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution will be explained in more detail by means of the drawing, where in FIG. 1 is a cross-sectional view of an electric toothbrush head. In FIG. 2 is a top view.

Examples of technical solution

The electric toothbrush head, which consists of a handpiece 7, is provided in the handpiece 4 with a shaft 2 which is also the axis of rotation and on which a rotating brush 3, which is partially covered by a protective cover 4, is radially mounted.

Claims (1)

PROTECTION REQUIREMENTS Electric toothbrush head, characterized in that it comprises a rotary brush (3) having resiliently flexible bristles mounted on a shaft (2) mounted in a handpiece (1) which is also the axis of rotation of the brush (3), the brush (3) is covered with a protective cover (4).