DE1171870B - Toothbrush - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school Class: A 46 b

German KL: 9b -9/10

Number: 1171 870

File number: M 57921III / 9 b

Filing date: August 22, 1963

Opening day: June 11, 1964

The invention relates to a toothbrush whose arched bristle carrier is rotatable on the front handle part is attached and can be adjusted and locked in the longitudinal and transverse position to the handle, for which purpose the front part of the handle is made thinner than the rest of the handle and this is provided with a step, into which one end of the bristle carrier engages in the longitudinal position to the handle.

Toothbrushes with bristle carriers that can be rotated relative to the handle are already known. An adjustability of the bristle carrier in the longitudinal direction or transversely to the handle allows a favorable adaptation of the Bristle carrier to the cleaning process when brushing your teeth.

It is also already known, in the case of a toothbrush, which can be pivoted relative to the handle Bristle carrier to make the front handle part thinner than the adjoining handle part. It is the middle part of the handle is provided with a gradation into which the bristle carrier has an end face in the longitudinal position to the handle locks, so that the existing made of elastic material, arcuate Bristle carrier is held straight in accordance with the handle part made of rigid material.

The aim of the invention is to use the arcuately curved bristle carrier even when it is positioned in the longitudinal direction to get curved to the handle. Furthermore, it should be achieved that the curved bristle carrier in the longitudinal position continuously merges into the handle.

To solve this problem, the invention provides that the made of elastic material front handle part of which, in a manner known per se, is covered with tufts of bristles on the concave surface, Bristle carrier made of rigid material in the longitudinal position of the bristle carrier according to the Curvature of the latter is kept bent.

Furthermore, the invention provides that the bristle carrier or the front handle part with a pin is provided, which engages in a recess of the front handle part or the bristle carrier and in this recess is held by a bead. According to a further proposal, the Invention of the pin resilient projections and the recess resilient latches that the Fix the bristle carrier in the longitudinal and transverse position to the handle.

In the following an embodiment of the toothbrush according to the invention with reference to the drawing explained. In the drawing shows

F i g. 1 a toothbrush from the side with in the same Direction as the handle placed bristle holder, toothbrush

Applicant:

Dr. med. Herbert Makowsky,

Bremen, Wielandstr. 25th

Named as inventor;

Dr. med. Herbert Makowsky, Bremen

Claimed priority:

Switzerland of December 8, 1962 (368 781)

F i g. 2 the brush with the handle placed perpendicular to it Bristle carrier, also from the side, partly in section, and

F i g. 3 shows a section along the line III-IH in Fig. 2.

The toothbrush has an elastic handle 1, in particular made of plastic, the front handle part 2 of which is intended to hold the arched, curved bristle carrier 4, is made significantly thinner than the rest of the handle part. This front handle part 2 is perforated so that it has a recess 8 which is provided with radial, flexible catches 10 and also with a slot 11 extending from the recess 8.

In the recess 8, the pin 7 of the brush holder 4 sits axially immovable, but rotatable. The cross section of the pin 7 is provided with four projections 9 evenly distributed around the circumference and has a radially projecting bead 12 at its end.

The slot 11 gives the edge parts of the recess 8 the ability to yield resiliently, so that they hold the pin 7 tight in the working positions of the bristle carrier. If the bristle carrier 4 is rotated from one position to the other with respect to the handle, the projections 9 cause an increasing widening of the recess 8 until the next projection 9 snaps into place behind the notches 10. The resilient resilience of the edge parts of the recess 8 also enables the bead 12 of the pin 7 to be passed through the recess 8 when inserting or replacing the bristle carrier 4 protruding plastic rivet achievable.)

409 599/8

Due to its small thickness, the front handle part 2 of the handle can be bent open. At the transition from the thick to the thin handle part is formed by a protruding nose 3. Under this Nose, one end 6 of the bristle carrier is pushed into its position in the same direction as the handle, whereby the part 2 of the handle of the curvature of the bristle carrier 4 is kept bent accordingly.

In the in F i g. The position of the bristle holder with respect to the handle shown in FIG. 1 is suitable for the brush for cleaning the molars, canines and incisors from the inside. The toothbrush is placed across the row of teeth guided back and forth in a horizontal position. During this movement, the bristles 5 penetrate the joints between the teeth and brush them along the entire length of the tooth, starting at the neck of the tooth completely, including the crowns of the molars. This cleaning must of course of advance one tooth to the other on both sides of the dentition, above and below.

Once the upper and lower parts of the denture have been cleaned from the inside, the bristle carrier is opposite the handle by 90 ° into the position shown in FIG. 2 position shown rotated.

To clean all teeth from the outside, the brush is now always the same from section to section covering several teeth above and below or, if desired, only above or below, on the teeth placed with the handle pointing vertically downwards. The curvature of the bristle carrier is chosen so that the bristles lie well against the curvature of the dentition. By moving up and down the brush can be used for a thorough and yet gentle cleaning of the front parts of all Achieve teeth right into the corners that are difficult to access with ordinary brushes.

The toothbrush not only cleans the teeth perfectly, it is also gentle on the tooth enamel, and it is convenient to use. Both the horizontal back and forth movements as well as the vertical up and down movements can easily be carried out with one hand.

Claims (3)

Patent claims: 1. Toothbrush, the arched bristle carrier of which is rotatably attached to the front handle and can be adjusted and locked in the longitudinal and transverse position to the handle, including the front one Handle part is made thinner than the rest of the handle and this is provided with a gradation, in which engages one end of the bristle carrier in the longitudinal position to the handle, characterized in that that the front handle part (2) made of elastic material of the in a manner known per se on the concave surface with bristle tufts (5) occupied, made of rigid material bristle carrier (4) Longitudinal position of the bristle carrier is held bent according to the curvature of the latter. 2. Toothbrush according to claim 1, characterized in that the bristle carrier (4) or the front handle part (2) is provided with a pin (7) which is in a recess (8) of the front Handle part (2) or the bristle carrier (4) engages and in this recess (8) through a bead (12) is held. 3. Toothbrush according to claims 1 and 2, characterized in that the pin (7) is resilient Projections (9) and the recess (8) have resilient detents (10) which the Fix the bristle carrier (4) in the longitudinal and transverse position to the handle (1, 2). Considered publications:
Austrian Patent No. 183 169;
U.S. Patent No. 1,471,626. 1 sheet of drawings 409 599/8 6.64 ® Bundesdruckerei Berlin