DE1185147B - Toothbrush - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school Class: A 46 b

Number:
File number:
Registration date:
Training day:

German class: 9b-9/10

1185 147
M54068III / 9b
August 29, 1962
January 14, 1965

toothbrush

The invention relates to a toothbrush with a sliding mechanism relative to the Handle swiveling bristle carrier.

Toothbrushes with brushes pivotably arranged on the handle are available in different embodiments known. The pivotability of the brush has the purpose of making the toothbrush different Adapt sections of the dental arch when brushing your teeth, e.g. B. to the front of the cutting and the molars or the back of the teeth.

In a known embodiment of this type of toothbrush, the brush is at the end of an im hollow handle guided, spring-loaded rod arranged. By pulling out the rod against the spring load can move the brush part mounted in a fork of the handle into one position be swiveled across or parallel to the handle.

This is the case with another known toothbrush Brush part with a pin in a fork-shaped recess formed at the end of the handle held. The holding force is provided by a fastening element that is wedge-shaped at one end generated between the outer surface of the brush as part and the facing surface of the handle is such that an extension at the end of the pin under constant tension on the outer surface of the handle. To carry out pivoting movements of the brush part, the loading 3c fastening element by hand and with the help of a button attached to its end from the clamping position pushed so that the brush part is removed or removed from the recess of the handle. can be twisted.

In another already known toothbrush, the position of the brush part is relative to the handle determined by a rectangular button attached to the bristle carrier, which is also in a rectangular recess of the handle is located. The handle is in the area of the pivot bearing of the bristle carrier is fork-shaped. By squeezing the fork comes the Button of the brush part out of the rectangular recess, and the brush part can be free of Hand rotated.

Finally, a toothbrush is known in which the bristles are curved on the outside Brush part are arranged. The brush part is pivotably mounted on the handle in its center. at the position in the longitudinal direction to the handle, the position is secured by the fact that the elastic Applicant:

Dr. med. Herbert Makowsky,

Bremen, Wielandstr. 25th

Material of the existing brush part is under tension on the straight handle.

All known embodiments of toothbrushes with pivotable relative to the handle Brush part has the common disadvantage that the brush part can only be pivoted by hand is.

The object of the invention is to propose a toothbrush in which the brush part is pivoted by the sliding mechanism without touching the brush part by hand can be.

According to the invention it is proposed that the bristle part consists of two curved brushes which are pivotably mounted on the handle with mutually facing ends, on which the handle on the handle adjacent and movably guided slide is articulated.

When the slide is moved in the longitudinal direction of the handle, depending on the direction of movement achieved that either the two brushes lying next to each other in the longitudinal direction to the handle or be pivoted into a position transverse to the handle. This movement takes place without touching the two brushes.

Another advantage of dividing the brush part in two is that for the position of the brush part, in which the front of the teeth is to be cleaned by moving up and down, an elongated one Brush part is given, while when cleaning the back of the teeth the lengthways of the handle extending brush part is short and relatively wide, as a result of the two adjacent brushes.

Further features of the invention provide that the facing ends of the brushes are rounded are, the front end of the slide is designed as a two-pronged fork and one each on one Tine tip of the fork attached pin slidable and extendable in a slot each of a brush borders.

Further features of the invention relate to the design of the slide and the handle the toothbrush.

409 768/21

An exemplary embodiment of the subject matter of the invention is shown in the drawings. It shows

F i g. 1 a toothbrush with brushes swiveled out to the side in plan,

F i g. 2 the toothbrush according to FIG. 1 in side view,

F i g. 3 the toothbrush according to FIG. 1 and 2 seen from the side of the bristle carrier,

Fig. 4 is a side view of the brush with a modified one Position of the bristle carriers,

FIG. 5 is a plan view corresponding to FIG. 4,

F i g. 6 is a plan view of the handle of the toothbrush,

F i g. 7 a side view of the handle,

F i g. 8 is a plan view of the slide and FIG. 9 is a side view of the slider showing

Figs. 10 and 11 show the design of the two Brushes on the back.

The bristle carrier of the toothbrush consists of two curved brushes b _x and b ₂ . On the side of the brushes b ₁ and b facing away from the bristles. _? a pivot bearing Z ₁ and Z _{2 is} provided, which connect the facing ends of the brushes b _x and b ₂ to the upper end of the handle α of the toothbrush. The ends of the brushes b ₁ and b ₂ facing one another are arranged at a distance from one another and rounded, so that an unimpeded rotational movement is possible.

In order to carry out pivoting movements of the brushes b _t and b ₂ (e.g. between the position of FIG. 1 and that of FIG. 5), a slide c, which is movably guided in the longitudinal direction on the handle α , is provided. The pivot bearing J ₁ and Z _{2 of} the brushes O ₁ and b ₂ is designed so that a gap remains between the back of the brush and the facing side of the handle, which is used to accommodate the upper, fork-shaped ends d _t and d _{2 of} the slide c serves. The flat slide rests on the handle a along its entire length.

At the ends d _x and d _{2 of} the slide c there is a pin h _v h ₂ with a head, each of which engages a brush O ₁ , b _{2 in a} guide slot k _t , k _2. The slots Ar ₁ and k _{2 of} the brushes are eccentric to the pivot bearing Z ₁ and Z ₃ , so that with a longitudinal movement of the slide c, both brushes b _t and b ₂ are pivoted about the pivot bearings Z ₁ , Z ₂ , the relative movement between Brushes b _x and b ₂ on the one hand and the ends ά _Λ and d. _{2 of} the slide on the other hand is compensated by the guide slot k _x and k _2. In this way, the two brushes b ₁ and 6 _{2 can be} pivoted from a position transverse to the handle α, for example, into a position parallel to one another and in the longitudinal direction of the handle. In one case there is an elongated, transverse bristle carrier b and in the other case a relatively short, but all the wider bristle carrier b. The individual parts are expediently dimensioned in such a way that the two previously mentioned end positions are reached when the slide is moved by Vs to 1 cm.

In order to ensure adequate guidance between the flat handle and the also flat slide guided on it, a guide slot r _{t is} provided in the handle α in the longitudinal direction, which is provided with, for example, wave-shaped profiling. On the side facing it, the slide is provided with a correspondingly profiled tongue r ₂ , which engages in the shape of a notch in the profile of the longitudinal slot r _x . The elasticity of the material used for the handle enables the slide to move longitudinally against a resilient resistance.

A further securing of the slide in the end positions results from the fact that both the handle and the slide are held when brushing the teeth by grasping the handle. The handle is compressed so that movement of the slide relative to the handle is avoided. Appropriately, there are both the handle and the slide made of an elastic material, for. B. from an injectable plastic.
To facilitate the longitudinal movements of the slide on the one hand and to ensure a better grip when brushing the teeth, the outward-facing side of the slide is provided with a transverse profile ^ ₁ . Likewise, the handle is designed with a profile g ₂ on the opposite side.

Claims (6)

Patent claims: 1. Toothbrush with a bristle holder pivotable by a sliding mechanism relative to the handle, characterized in that the bristle holder consists of two curved brushes (b _v b ₂ ) which are pivotably mounted with mutually facing ends on the handle (a) on which the handle on the handle (A) adjacent and movably guided slide (c) is articulated. 2. Toothbrush according to claim 1, characterized in that the facing ends of the brushes (p _v b ₂ ) are rounded. 3. Toothbrush according to claims 1 and 2, characterized in that the front end of the slide (c) is designed as a two-pronged fork and a pin Qi ₁ , Ji ₂ ) attached to each prong tip of the fork rotatably in a slot (k _x , k ₂ ) a brush Q) ₁ , b ₂ ) . 4. Toothbrush according to claims 1 to 3, characterized in that the slide (c) with a tongue Q ₂ ) is guided in a longitudinal slot Q ₁ ) of the handle (α), the edges of the tongue Q ₂ ) being led to one another. and the longitudinal slot Q ₁ ) are provided with a profile that fits into one another. 5. Toothbrush according to the preceding claims, characterized in that at least the handle is made of elastically deformable material. 6. Toothbrush according to claims 1 to 5, characterized in that the outwardly facing surfaces of the handle (a) and the tongue Q ₂ ) have profiles (g _v g ₂ ) . Considered publications:
German Patent No. 478,382;
Austrian Patent No. 183 169;
U.S. Patent Nos. 1471,626, 1,260258. 1 sheet of drawings 409 768/21 1.65 © Bundesdruckerei Berlin