DE81382C - - Google Patents

Description

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IMPERIAL

K. PATENT OFFICE.

CLASS 30: Health Care

LUDWIG EHRLICH in BERLIN.
Toothbrush.

welösch

The use of previous toothbrushes, which only brushed in a horizontal direction making it possible had the great disadvantage that it was not only impossible was to remove the remains of food sitting between the teeth, but also to remove them The impurities lying on the surface of the teeth are brushed into the spaces between them and there the decomposition of the enamel and thus the hollowing of the teeth were essential promoted. That, in spite of this disadvantage, the ordinary toothbrushes are almost still used are exclusively in use, is explained by the fact that the aids, which Served for vertical brushing of the teeth, were consistently unsuitable and especially do not allow comfortable handling.

The present toothbrush, the handling of which is both comfortable and easy, like that of the previous brushes that can be moved horizontally, is supposed to cope with the abovementioned disadvantages remove.

The accompanying drawing shows three different types of this brush, by Fig. 1 and 2 a brush for cleaning the outer tooth surfaces in the vertical direction, 3 shows a brush for cleaning the inner tooth surfaces in the vertical direction and FIGS. 5 to 10 combine the two Brushes to show a single one and its individual parts.

As can be seen from the top view shown in Fig. 1, the above-mentioned purpose is achieved by the fact that the bristles are attached to a bristle holder α curved according to the outer tooth shape, so that their surface also assumes the shape of the tooth and it does so when it is applied penetrate into the tooth joints, so that all food residues are absolutely removed with only a few up and down movements. The movement in the vertical direction is made easy and comfortable by the fact that the handle b, Fig. 2, is firstly mounted vertically in the middle of the bristle holder α and is also bent downwards at right angles at c. FIGS. 3 and 4 show the brush, constructed similarly to the one described above, intended for cleaning the inner tooth surfaces. The bristle holder d is also curved here, but much smaller and adapted to the inner Gebifsform; Here, too, the handle e attached in the middle of the bristle holder d and perpendicular to the same, as well as its right-angled crank e ^l downward, makes the brush easy to handle.

If, on the one hand, only one brush is to be used and, on the other hand, the same effect as that described above is desired, then the toothbrush shown in FIGS. 5 to 10 in twice the natural size is used. Fig. 5 shows a basic outline of the brush, Fig. 6 shows a section according to xx of Fig. 5, Fig. 7 shows a rear view, Fig. 8 shows a section r \ & c \\ yy of Fig. 5. -Fig. 9 and 10 show individual parts. The bristle holder h is curved so that it has a concave and a convex surface g , of which the former is intended for the external, the latter for the internal cleaning of the teeth.

Claims (2)

In order to use both surfaces alternately, the handle i must be adjustable, e.g. B. is shown by Fig. 6, the position of the handle when the concave side f is used, while in the other case the handle can be brought to the opposite side. It is necessary to turn the handle 180 ° around the bolt k in the direction of the arrow and then turn the hinge band / around the bolt m by 180 °. Around the handle i to determine the joint band, attached to the same two elastic lateral plates with Z ¹ Lächern Z ^2, in which the handles provided at the side warts i ^i: intervene. In Fig. Ίο the hinge is shown in a view and a section according to ^ - ^. Fig. 9 shows the handle i in two views. A similar device is used to fix the hinge band in its two positions on the bristle holder. In the same there is a recess h ¹ , in which two vertically resilient plates n, which are embedded in the bristle holder, carry the hinge pin m, and each of which has two holes 0 which are symmetrical to the axis of rotation and into which the studs Z ³ attached to the hinge / attached jump. In Fig. 5 these holes are dotted, in Fig. 6 only one is shown, since the other is covered by the hinge. Since there is some air left between the resilient plates and the walls of the recess Ji ^l , they can give way to the side when the hinge is turned and let the warts pass until they finally jump into the holes on the other side . Pateντ claims: i. ' .A toothbrush with the Gebifs accordingly concave or. convex curved ^: tem bristle holder and a handle attached in the middle of the holding back and perpendicular to the same, for the purpose of using the brush when cleaning the teeth from the inside or from the inside. to be able to move comfortably in a vertical direction from the outside. 2. A toothbrush with a concaveh 'and a convex brush surface, characterized in, that the handle, convenient to use every brushing surface ,, is hinged to .the brush and by two by a joint (k) connected to the parts (i, and I) exists. 1 sheet of drawings.