DE2002984A1 - Toothbrush - Google Patents

Description

Dr. med. Herbert Mäko'wsky

2800 B r em e η

Wielandstrasse 25

Z a h η b Ur 9 t e

The invention relates to a toothbrush with a relatively hemispherical handle ¹ ver pivotable em Bore ten- »carrier, which consists of preferably two curved parts with the ends facing each other pivotably mounted on the handle bristle carrier parts *

Toothbrushes with split bristle carriers, whereby the Börstenträgörteiie can alternatively be swiveled into a position transverse to the handle and into a position in the longitudinal direction of the handle, are already described in the German iatents ^ hrifteh 1 135 UT and 1 252 Ϊ70 * ■■

Toothbrush according to the first-mentioned patent specification , the operation of the bristle carrier in the illustrated,

Aueführungebeispiel ay slide provided abeiförmiges, the bristle carrier parts trains end to them by jeweil · one in a long

Bristle carrier parts admitting pins connected

By moving the slider · in the longitudinal direction · the two boret support parts are in

or another position yerechwenkt, whereby the long loops slide "

In the case of the toothbrush according to DPS 1 252 170, a toothed rack that can be moved by the slide in the longitudinal direction of the handle is used to actuate the two bristle carrier parts provided with toothed segments arranged on the facing ends of the bristle carrier parts combs

The invention is based on the object of further developing and improving toothbrushes with bristle holders that can be pivoted relative to the handle. In particular it is about improving the possibilities of economical machine or automatic mass production.

The toothbrush according to the invention is characterized in that the slide is connected to the bristle carrier parts by deformable pull and push members. Preferably the connection between the train and Push members on the one hand and the bristle carrier parts on the other hand in such a way that these parts consist of a single : gen, coherent workpiece can be produced, a 'preferably by injection molding from plastic. There furthermore, the pull and push members are integrally connected to the slide, the toothbrush is according to FIG Invention, in spite of the highly mechanized actuation of the bristle carrier parts, is designed in such a way that it consists only of two Jora parts, namely injection molded parts, which are also assembled in a simple manner · This toothbrush is the basis for economical mass production and assembly given in an optimal way.

Further characteristics of the discovery concerned education and arrangement of the slide «as well as the connection of the

Boritenirlgerttile bit the handle.

■ $ 109140 / OOit

Further details are provided below using in Embodiments shown in the drawings explained in more detail. It shows!

Mg. 1 shows an overall view of the toothbrush according to FIG Invention when the bristle carrier parts are positioned transversely to the handle

Pig. 2 a part of the toothbrush according to Pig * 1 a position of the bristle carrier parts in ■ Longitudinal direction of the handle; ; '"ll

Pig. 3 shows a longitudinal section through the toothbrush according to FIG Pig. 1 and 21

Pig. 4 shows a cross section IV-IV from Pig. 2, on an enlarged scale; ., --.-,

Pig. 5 shows a cross section VV through the slide in - - .- '-Pig. 3f "" ■ · ^: --ν-.; ■ ..; .. ■■ ■■ .. '■■■. . '. -

Pig. 6 shows a rear view of part of the toothbrush,.: With the attachment of the bristle carrier parts to the. '- ύ

Pig., 7: an illustration corresponding to Pig. 6 with a Another embodiment of the fastening of the. • iBoiet holder parts on the handle f. *;

Pig. 8 a section VII / MFIII to Pig. 7 * -

In the illustrated embodiment of a toothbrush, two coincidentally formed, curved ones are Boretone support parts 10 and 11 on a handle 12

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pivoted. The two bristle support parts 10 and 11 are each around a pivot bearing 15 and, respectively 14 in a position transverse to the handle (Pig. 1) and alternatively in a position in the longitudinal direction dee handle (Mg. 2) movable. The two different positions of the bristle support parts 10 and 11 correspond to the cleaning positions required for optimal dental care certain tooth areas.

The movements of the bristle support parts 10 and 11 are effected by a slide 15. This slide 15 is on the handle 12 in its longitudinal direction movably mounted and can be operated by hand, for example by the hand holding the toothbrush.

The movements of the slide 15 are transmitted to the bristle support parts 10 and 11 via deformable, namely elastic pulling and pushing members 16 and 17. The pulling and pushing members 16, 17 are connected to the bristle carrier parts 10 and 11 at the rounded end faces 18 and 19 'facing one another, specifically in an area remote from the slide 15. At least in the area of the front ends 18 and 19, the pull and push members 16, 17 are deformable. The material of the pull and push members 16 and 17, in particular plastic, is selected so that it exists in one direction of movement, namely when moving out of the position according to Pig. 1 into the Pig. 2, the slide 15 being moved away from the bristle carrier parts 10 and 11 »tensile forces in the pulling and pushing members 18 and 19 can be absorbed and transferred to the bristle carrier parts 10 and 11 so that they are pivoted . In the reverse direction of movement, about the tension and Sohubglieder 16 and 17 Druok forces on the

109840/0061

Transferring bristle carrier parts 10 and 11, whereby a Pivoting is effected in the opposite sense.

In the illustrated embodiment, the Pull and push members 16 and 17 formed in that a push rod 20 connected to the slide 15 in FIG a region facing the bristle carrier parts 10 and 11 is split.

A special feature of the invention consists of the slide 15, the push rod 20, the pull and push members 16 and 17 as well as the two bristle support parts 10 and 11 from a single, coherent workpiece, preferably molded in a plastic injection molding, which can be simply -Mounting measures, namely by pressing, is connected to the handle 12. This facilitates both the production of the individual parts as well as their assembly «-...." ■■ ".. ■ '■"■; .-

The slider 15 is by lateral dovetail ^λ guides 21 and 22 (Fig. 5) positively connected to the handle 12. The Eigenschaften.des material (I, for example, nylon) of the slide 15 enable IE &, ά during installation, the "slide 15 transverse to the handle :; to be pressed into the dovetail guides 21 and 22 · The assembly can also be done by sliding onto the handle

The Setieber 15 is sohwenk- with a about an axis 25. Baren ijjnschlagstück 24 provided “This is used to fix the bristle carrier parts 10 and 11 in their end positions f For this purpose, two spaced stops 25 and 26 are provided on the handle 12”

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be formed by the end edges of a recess 27 in the handle 12. In each of the end positions, Pivoting of the stop piece 24, its edges 28 on the stop 25 or its edge 29 on the stop brought to the facility. The bristle carrier parts 10 and 11 are thereby fixed in one direction of movement. The fixation in the other direction of movement the length of the pulling and pushing members 16 and 17t results in a movement beyond the set end position addition do not allow.

The push rod 20, the cross section of which decreases in the direction of the bristle support parts 10 and 11, is on the The side facing the handle 12 in a groove, in particular a dovetail groove 30, of the handle 12 led to increase the stability, especially when transferring the pressure forces. Furthermore, the distance is between the front ends 18 and 19 of the bristle carrier parts 10 and 11 is kept to a minimum, on the one hand by as much as possible To achieve seamless bristles 31, on the other hand to the pulling and pushing members 16 and 17 a certain lateral To ensure coincidence.

The stop piece 24 is uniformly formed together with the slide 15 in one injection cycle and at the same time pivotably connected to the slide 15 by the shaft, which is also made of plastic, so that there are actually only two moldings in total.

The pivot bearings 13 and 14 for the bristle support parts 10 and 11 are designed so that an easy, straight-line assembly is possible. In the embodiment according to fig. 6 are formed on the sides of the bristle carrier parts 10 and 11 facing away from the bristles 31 pegs 32 and 33, the duroh holes 34 and 35 in the hand

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handle 12 step through. The pins 32 and 33 are with elongated, bolt-like / heads 36 and 37 provided * Holes 34 and 35 »through which heads 36 and 37 are passed through during assembly are so - court tet that when using the toothbrush the heads 36, 37 in no position of the bristle carrier parts 10 »11 are congruent with holes 34 and 35 lie.

In the embodiment according to FIGS. 7 and 8, pins 38 and 39 are also provided, which pass through, for example, circular holes 40 and 41 in the handle 12 and which are fixed by a, for example, circular head 42 and 43. The heads 42 and 43 are elastic in this case, in such a way that: during assembly they are deformed through the holes 40 ^; and 4Ί can be pushed through. If necessary, a relief slot 44 can be provided in the handle 12, which allows the holes 40 and 41 to be widened during assembly. In the assembled state, the heads 42 and 43 are preferably countersunk in the bristle carrier parts 10 and 11.

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Claims (1)

Expectations Toothbrush with a bristle carrier which can be pivoted relative to the handle by means of a slide and which consists of preferably two curved, with the ends facing each other pivotably mounted on the handle Bristle carrier parts, characterized in that the slide (15) by deformable tension and push members (16, 17) with the bristle carrier parts (10, 11) is connected. 2. Toothbrush according to claim. 1, characterized in that that the deformable pull and push members (16, 17) and the bristle support parts (10, 11) as well preferably also the slide (15) from a uniform, preferably in one injection cycle Plastic manufactured workpiece is made. 3 »Toothbrush according to claim 1 and / or 2, characterized in that the pull and push members (16, 17) formed on the facing ends (18, 19) of the bristle carrier parts (10, 11) are. 4. Toothbrush according to claim 3, characterized in that the pull and push members (16, 17) in merge into the bristle carrier parts (10, 11) in an area remote from the bottom slide (15). 109840/0081 Λ ' .5 »Toothbrush according to one or more of the claims 1 Ibis 4, characterized in that the facing ends (18, 19) of the bristle carrier, tfile (10, 11) are rounded and the pull and Söhubglieder (16, 17) in the transverse graduation of the bristle carrier parts (10, 11) rest against their front ends (18, 19). 6. Toothbrush according to one or more of the claims 1 to 5 »characterized in that the bristle ..- ■ m carrier parts (10, 11) are fixed in each of the two end positions in one direction of movement by corresponding dimensions of the pull and push members (16, 17) . *". "; ... "■■." ■■. '· ■■ ■■ "- ■." 7. Toothbrush according to one or more of the claims to 6, characterized in that the bristle carrier parts (10, H) fixed at least in one direction of movement in each end position by a lock are, 8. Toothbrush according to claim 7 and optionally one or more of the further claims, characterized in that a β pivotable stop piece (24) is attached to the slide (1.5), which? ^f fn the end positions of the Borstenträgerieil # (10, 11) (26, 25) vorzugSTiieige are formed by a recess (27) in the handle (12) on stops, alternatively bears. 9. Toothbrush according to Anapruch 8, characterized in that jd that the Ansöhlagetüok (24) is in one piece with the Slide (15) is connected, in particular by . \ ■ ^:. - ■ * ■■ ^{'■■■■■;.} - - - ίο - Production in one injection cycle, with the formation of the slide (15) and the stop piece (24) with one another connecting axis (25). 10. Toothbrush according to one or more of the claims • "1 to 9" characterized in that the slide (15) via a push rod (20) with the pull and Push members (16, 17) is connected, the last- : re are formed by the fact that the bristle carrier share (10, 11) facing end of the push rod (20) ™ is split in the middle. 11. Toothbrush according to one or more of claims 1 to 10, characterized in that the distance between the front ends (18, 19) of the bristle carrier parts (10, 11) from one another is only slightly greater than the combined cross section of the pull and push members (16, 17) in this area. 12. Toothbrush according to claim 10, characterized in that the push rod (20) on the handle (12) is guided, in particular by a dovetail P groove (30). 13 · Toothbrush in particular according to one or more of claims 1 to 12, characterized in that the bristle carrier parts (10, 11) with pegs (32, 33) arranged in holes (34, 35) on the side facing away from the bristle (31) the handle (12) are mounted, wherein the provided with heads (36, 37) pegs (32, 33) in the holes (34, 35) inserted into a non occurring during use of the toothbrush relative position of the bristle carrier parts (10, 11) are. 109840/0061 14. Toothbrush according to claim 13, characterized in that the handle (12) with elongated holes (34> 35) is provided> through which appropriately designed heads (36, 37) pass during assembly, \ wherein the Löoher (34, 35) and the heads (36, 37) are congruent in any position of the bristle carrier parts (10, 11) during use of the toothbrush. "- 15. Toothbrush according to one or more of the claims; _ , 1 to 12, characterized in that with deform H pegs (38, 39) provided with bar heads (42, 43), during assembly through holes, in particular circular holes (40, 41) of the handle (12) ' are penetrable. For the applicant: Meissner & Bolte Patentanwälte Applicant; . - Br. Med. Herbert Makowsky B r e m e η vaelandstr. 25th Bremen, January 21, 1970
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