The present invention relates to a toothbrush head having a plurality
elastic cleaning elements, preferably on a cleaning element carrier
are attached and stand out from this. The invention further relates
a method of making such a toothbrush head.
Toothbrush heads become
Filaments or bristles to tufts
and as bristle tufts
the cleaning element carrier
attached to the toothbrush head.
This can be done either by a so-called anchor plug process,
where the bristles are U-shaped
be turned over, so that a
between the thighs of the bristles is taken. The bristle tuft is
while stuffed into a hole in the cleaning element carrier, the anchor plate itself
the bristles extending into the recess is injected so that it to
whose walls are anchored and the bristles in the recess
For this purpose, it has become known, the combined into a tuft bristles
to pour in the injection-molded plastic injection element carrier, wherein
here the bristle tufts
with their inflowing
Ends in the injection mold
can be introduced
so that you
in injection molding
of the cleaning element carrier in
be poured this.
Toothbrush heads is
However, it sometimes difficult, the bristles or bristle tufts directed
to give mechanical properties. For example, it may be desirable
be, the bristles and the bristle tufts formed therefrom in
to give one direction less rigidity than another
Direction, for example, when cleaning in one direction large forces, for example
to be able to apply on the plaque, while cleaning movements in one
other direction smaller forces
should be produced, for example, around the gums and the oral mucosa
not to hurt, just to gently massage. Also, the
Tufts of tufts only
be trimmed into a limited number of forms or are more complicated
Head shapes of bristle tufts
just difficult to achieve. The heads
the bristles themselves can
WO 01/12013 A1 is a toothbrush and a method to
their preparation is known in which serving as bristles filaments
in series one behind the other with their base portions on a band
glued or welded
become. By rolling up the tape with the attached bristles
becomes a bristle tuft
produced, which is then attached to a bristle carrier. Advantageous
is here that through
Stringing different lengths and / or different solid
Bristles targeted properties of the resulting bristle tufts achieved
However, it is also difficult here, ultimately actually directed
To obtain mechanical properties of the bristle tufts, in particular
the mechanical properties of the bristles themselves are not in the desired
Way directionally changed
The present invention is based on the object,
an improved toothbrush head
and to provide an improved process for its production,
avoid the disadvantages of the prior art and the latter in
advance advantageously. In particular, it should be easier
Way producible toothbrush head
be created, the cleaning elements and Putzelementebüscheln in
easy way the desired
different mechanical properties can be given.
According to the invention this
Task through a toothbrush head
solved according to claim 1.
In procedural terms, the said task is through
a method according to claim
Preferred embodiments of the invention are the subject of the dependent claims.
According to the invention
So as cleaning elements no conventional
Bristles or filaments used as the starting form regularly individual
Use plastic fibers, which then to the necessary length of the
and to clumps
become. Instead of such bristles or filaments with non-directional,
i.e. in all directions transverse to the longitudinal axis same mechanical
the present invention, as cleaning elements to use film strips,
the by a suitable separating forming process from a foil sheet
be made. Such film strips can by suitable choice of
Starting film, in particular its thickness and material composition,
as well as suitable choice of geometry the desired mechanical, in particular
directed properties are given. That's the way it is
in a simple way,
the film strip in different directions transverse to its longitudinal axis
various mechanical properties such as bending force, elasticity, restoring force,
Bend curve, etc. to give.
In particular, as a starting material for the production of the film strip, a thin films be used material and the film strips are given a blank, so that the individual cleaning elements have a rectangular cross-section, the length is preferably a multiple of its width. In particular, as a starting material, a film having a thickness in the range of 10 .mu.m to 500 .mu.m, preferably about 50 .mu.m to 250 .mu.m can be used. The film strips are preferably made of such a film in a strip width which corresponds at least ten times, preferably at least fifty times, the thickness of the film. For example, foil strips with a strip width of 1 to 5 mm can be produced.
Another advantage of such cleaning elements consisting of film strips,
more precisely their rectangular cross-section with a large ratio of
to its width compared with conventional bristles with round cross-section
in the improved toothpaste application on the teeth to be cleaned. While at
Filaments the abrasive elements of the toothpaste due to the convex bases of the toothpaste
Bristles relatively fast outside
the cleaning area of the bristle tufts, the
flat or flat
Film strips better the toothpaste and its abrasive elements
at the head of the cleaning tufts
hold and thus over
the tooth surface to be cleaned
wipe, which is beneficial for plaque removal
Production of film strips from a foil sheet can be up
to resort to different separating forming processes. After a preferred
According to the invention, the film strips are punched out of the film sheet.
On the one hand high processing speeds are achieved, on the other hand
are the geometric diversity of the film strips almost
in the production of film strips and cutting methods such as
Laser cutting be used. This can be done with the help of cutting tools
Cut introduced into the starting film and in this way
the original one
Foil individual cleaning elements are produced in the form of film strips.
The advantage of this method lies in the simple manufacturing process, however
In this case no arbitrarily shaped structures are generated.
by the aforementioned punching can the cleaning elements to their
the tooth surface
be given a variety of forms. For example, after
an advantageous embodiment
the invention the heads
the film strip have multiple peaks, causing the cleaning effect
the individual plaster elements can not be improved insignificantly,
because their cleaning effect emanates mainly from their tips.
Development of the invention, the cleaning elements of a plastic film
manufactured. To better the properties of the individual plaster elements themselves
to be able to vary
These are made of a multilayer film. in this connection
in particular, combinations of different materials use
find, for example, different plastic layers to a multi-layered
Composite foil joined together
be. Advantageously, can
the cleaning elements also from a mixture of plastic and a
other non-plastic material, in particular of a plastic-paper mixed film,
a so-called plastic paper blend are formed. In production
the cleaning elements of such plastic paper blends in which
The paper content can be variably adjusted, in particular
of the paper for holding various liquids, in particular of
Water are used. Due to the higher liquid absorption capacity of paper
in this liquid
or liquid-soluble applicator substances
which are released during use in the mouth.
In particular, it is better possible chemotherapeutic
To bring substances to the place where they should work, namely, for example
directly on the tooth or on the gums. Here, different applicator substances such as
For example, flavorings, antibacterial agents, circulation-promoting
Applicators etc. are introduced.
such applicators also by means of a surface coating
be applied to the foil strips, which in the case of foils
as a starting point for the
Cleaning elements is easier than using single filaments
Foil strip individually arranged on the plaster element carrier and at this
be attached. Preferably, however, the cleaning elements are made
from foil strips to tufts
and in tufts together
on the cleaning element carrier
attached. Preferably, at least some of them become one
Cleaning elements connected to each other at their base, preferably
integral in one piece
formed with each other, wherein the cleaning elements with their each other
Connected base then be attached to the cleaning element carrier.
In terms of manufacturing technology, it is here at particularly advantageous when not individual film strips are cut out of the film sheet, but a number of juxtaposed film strips are made, which are connected by a strip-shaped strip at its base. By folding or winding the band-shaped base of this film blank or punched part with the foil strips arranged thereon, a tuft foil strip can be formed, which can then be fastened to the cleaning element carrier, if appropriate after combining with further foil strips or foil strip tufts.
the foil strip tufts
be formed by several
such foil strip bandages connected by a common base to each other
be stacked. By connecting the superimposed base sections
for example, by gluing or joining by heating with infrared light
or by welding
can be easily formed a foil tufts. Especially
advantageous to this is that also
Foil strips made of different starting films with different material properties
can be stacked on top of each other,
to specifically control the properties of the foil tuft.
Foil strips with different geometries and / or orientations
Stacked on top of each other for mechanical properties
to control the resulting foil strip tuft. For example
alternately foil strip tapes
with foil strips tilted to the left via foil strip tapes
stacked to the right inclined foil strips, so that a
high bending stiffness results in both cleaning directions. alternative
the individual foil strip rows with the foil strips in superimposed
Rows offset from one another, resulting in a
very dense cleaning element arrangement results. Likewise, foil strips
and / or different width and / or different thickness one above the other
Attachment of the film strips in particular summarized to foil strip tufts on the
Cleaning element carrier
done in different ways. After a favorable
of the invention
the film strips stuffed with their base in a recess in the cleaning element carrier
and there by means of a cross over the base portion of the
anchored respective film strip extending anchor element.
The corresponding anchor element can be shot in the plaster element carrier
be so that
its end portions in the surrounding the recess walls of the
Cleaning element carrier
extend and are fixed there. This type of attachment can
be particularly advantageous if in the aforementioned
Way foil dressings
with juxtaposed strips of foil at their base
integral in one piece
are used together. The respective anchor element
can cross over here
Base portion of the foil strip line extend.
to the aforementioned anchor plug method, the film strips can also
on the cleaning element carrier
fastened, in particular be poured into this. Preferably
the to foil strip tufts
Foil strips introduced with their base portions in the corresponding injection mold
be before the grout wearer
is injection molded. The introduced into the injection mold material
the base portions of the film strips, so that they are poured.
It may be particularly advantageous if in the einzugießenden base sections
the film strip recesses are introduced, the pouring into the plaster element carrier of
the casting material
so that in addition to
the power or material connection also
still a form-fitting
Connection is made.
and other features and advantages of the invention will be appreciated
the claims as well
from the following description of preferred embodiments
based on associated drawings
out. In the drawings show
1 FIG. 2: a schematic side view of a toothbrush head according to a first embodiment of the invention, showing the arrangement of the cleaning strips in the form of foil strips, FIG.
2 : a top view of the brush head 1 .
3 1 is a schematic partial side view of a toothbrush head according to a further preferred embodiment of the invention, showing the arrangement of the cleaning elements in the form of film strips,
4 : A top view of the toothbrush head 3 .
5 FIG. 2 is a schematic side view of a toothbrush head according to a further embodiment of the invention, showing the arrangement of the cleaning strips in the form of film strips. FIG.
6 : a top view of the brush head 5 .
7 FIG. 2 is a schematic side view of a toothbrush head according to a further embodiment of the invention, showing the arrangement of the cleaning strips in the form of film strips. FIG.
8th : a top view of the brush head 7 .
9 FIG. 2 is a schematic side view of a toothbrush head according to a further embodiment of the invention, showing the arrangement of the cleaning strips in the form of film strips. FIG.
10 : a top view of the brush head 9 .
11 : An overall perspective view of a toothbrush with cleaning elements in the form of film strips, wherein the arrangement of the film strips similar to 1 is trained,
12 FIG. 2: a perspective view of a foil strip blank for forming a cleaning element tuft of a toothbrush according to one of the preceding FIGS.
13 a schematic perspective enlarged view of a formed from several stacked foil strip rows of plaster elements, and
14 : An enlarged fragmentary plan view of a toothbrush head of a preferred embodiment of the invention, showing the arrangement of the individual foil strips in the cleaning tufts.
The toothbrush heads shown in the figures 1 basically consist of a cleaning element carrier 2 , which can be injection molded from plastic, as well as a variety of elongated, roughly bristle-shaped cleaning elements 3 All of them on the mentioned plaster element carrier 2 are attached and stand out from this.
At least a part of said cleaning elements 3 consists of foil strips 4 with their base on the cleaning element carrier 2 are attached and stand out from this. The foil strips 4 are all elastically formed, but advantageously formed by their geometry and their material structure with different mechanical properties in different directions.
The foil strips 4 are summarized in itself similar to conventional toothbrushes to Putzelementebüscheln. In the execution of the 1 and 2 is a cleaning element tuft 5 with to the head of the toothbrush inclined foil strips, a centrally arranged cleaning tufts 6 with of the cleaning element carrier 2 vertically projecting foil strip and a cleaning tufts 7 with back to the stem 8th provided the toothbrush inclined foil strips. As 2 shows, a total of four rows of Putzelementebüscheln are provided, in the illustrated embodiment, each row 9 . 10 . 11 and 12 consists of the above-mentioned three groups of different inclined Tutzelementebüschel.
The cleaning tufts 5 . 6 and 7 each consist of stacked film strips. More specifically, each foil tuft consists 5 . 6 and 7 made of several stacked foil strip assemblies 13 , as exemplified by the 12 shows. A variety of foil strips 4 are arranged in a row and with their base section 14 integral integral with each other. The foil strip association 13 forms a comb, so to speak, from its base section 14 lined up in a row a variety of film strips 4 protrude. These foil strip associations 13 can in particular by punching or cutting from a sheet of film, which serves as a starting material, are produced, wherein in the aforementioned manner, various films such as multilayer composite films comprising plastic layers and paper layers can be used. Around a bristle tuft 5 . 6 or 7 To form, several of the in 12 shown foil strip bandages 13 stacked one above the other and each at the base portion 14 connected with each other. This can be done, for example, non-positively by gluing or cohesively by welding. Alternatively or additionally, a stacking of the film strips 4 also be done by a film strip association 13 like him 12 shows, folded or wound, so that several film strips come to lie one above the other. It can be in different ways geometrically equal shaped film strips 4 congruent superimposed and / or geometrically identically formed film strips in the longitudinal direction of the base portion 14 and / or in the longitudinal direction of the film strips 4 staggered one above the other and / or geometrically differently formed film strips 4 be stacked on top of each other. It is also possible to use foil strips 4 stack with different material properties on top of each other to determine the mechanical properties of the foil strip tuft in different directions, optionally different.
After the film strips 4 stacked in the above-mentioned manner and connected to each other, they can in the manner described above on the plaster element carrier 2 be attached, in particular by pouring, encapsulation, but also by a herkömmli in itself Ches anchor plug method.
As with the in the 1 and 2 shown embodiment are the film strips 4 of each foil tuft 5 . 6 and 7 each congruently stacked on top of each other. Although the film strips differ 4 in their orientations from foil tuft to foil tuft, in the same foil tuft 5 . 6 or 7 however, the foil strips are 4 geometrically the same design and stacked congruently stacked. As 2 shows, in each case three foil strip associations 13 per foil strip tuft 5 . 6 or 7 be stacked on top of each other. As 1 shows, advantageously, the film strips 4 at its free end with two spikes 15 and 16 be punched or cut, whereby the cleaning effect can be noticeably improved.
In the execution after 3 and 4 are all foil strips 4 to a single foil tuft 5 summarized, with the film strips 4 also here in the manner described above from punched or cut foil strip associations 13 are made, which are stacked on top of each other. As 3 and 4 show, but here are film strips 4 different geometry stacked one above the other stacked. As 3 shows, the film strips differ 4 especially in their length. In addition, how are 4 shows the foil strips 4 in the longitudinal direction of the foil strip bandages 13 considered staggered to each other.
In the execution of the 5 and 6 includes the toothbrush head 1 external cleaning tufts 5 . 6 and 7 , each rows of cleaning elements 9 and 10 form (cf. 6 ). Between these two rows of cleaning elements 9 and 10 are conventional bristle tufts 17 on the cleaning element carrier 2 attached.
The from foil strips 4 existing cleaning tufts 5 . 6 and 7 are distinguished in this embodiment by their different geometry and optionally under different material properties. In the head of the cleaning element carrier 2 lying foil tuft 5 are curved foil strips 4 arranged, which are curved towards the head of the toothbrush. The centrally arranged foil tufts 6 consist of vertically projecting foil strips 4 small width (see. 5 ). The stalk 8th arranged film strips 4 holding the foil tuft 7 form, however, have a considerably greater width. In addition, they are each with several tips 15 . 16 Mistake.
In the in the 7 and 8th shown execution of the foil strips 4 existing foil tufts 5 star-shaped on the plaster element carrier 2 distributed, with each foil tuft 5 overall has a rectangular cross-section. Each foil tuft 5 is here in the manner described above from several foil strip associations 13 connected in series with one another film strips connected by a common base portion 14 built, which were stacked on top of each other. Here, for example, the film strips 4 be arranged offset from each other so that a dense packing of film strips 4 arises. In the center of the star-shaped foil tuft arrangement sits a bristle tuft 17 from conventional bristles or filaments. As 7 shows, those from foil strips 4 formed cleaning elements 3 have a considerably shorter length than the conventional bristle tufts 17 ,
By punching out the foil strips 4 made of plastic or laminated film can foil the strip 4 be given almost any shape, like this 9 shows. The at the head of the cleaning element carrier 2 lying foil tufts 5 consists of foil strips 4 with a jagged contour while falling to the stem 8th arranged towards the foil tuft 6 from foil strips 4 with it towards the top about volcanic tapering foil strips 4 is trained. As 10 shows, here are several foil strip associations 13 stacked.