DE2160719A1 - hairbrush - Google Patents

Description

Applicant: Stance Industries, Inc., 1425-37th Street, Brooklyn,
NY 11218, USA

hairbrush

The invention relates to a hairbrush with stiff

Bristles.

The main criteria of construction stiffer
Hairbrushes have long been known. One goal is to make a hairbrush that goes deep into the hair. Through this
Brushing of all hair is favored, both those in
near the surface as well as those near the scalp and in the space in between. Also, because more hair is brushed with each movement, the deep penetration results in less time being required.

Another goal in the design of hairbrushes
is that the bristles easily slide past knots or the like entanglements of the hair. This is special
important for hairbrushes for wigs or other hairpieces. If a brush does not slide past a topknot, there is a risk that hair will be torn out of the knot base with a wig. In the case of natural hair, this is known to be associated with a certain amount of pain.

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There are numerous suggestions for achieving these goals known. Hairbrushes have been designed with stiff bristles. These brushes penetrate the hair easily and deeply. But when If a topknot is present, the knot is engaged and a pull is exercised on the relevant knot Hair.

It is also known to use hairbrushes for these reasons to be provided with flexible bristles. Although these bristles easily slide past buns, the brushing effect is not as satisfactory. These bristles do not penetrate the hair. However, as a result of normal brushing, matted hair will be affected the tangles or similar irregular arrangements of the hair are not brushed out. They are therefore used to straighten the hair a particularly large number of brushing movements are required.

Other known brushes have a combination of stiffer Bristles with a flexible carrier plate. These bristles are made of a stiff material such as spring steel and are supported by a flexible rubber support plate. The stiff metal bristles allow deep penetration into the hair, while the flexible rubber carrier plate allows the stiff bristles to be bent over at the anchorage in the carrier plate. This allows the stiff bristles to slide past knots. Even though t this hairbrush the basic to be put to the construction When it meets requirements, it has many practical drawbacks. The manufacture of anchored in a support plate made of rubber Metal bristles are expensive and can only be automated with considerable difficulty. Therefore these brushes are proportionate expensive. The arrangement of the metallic bristles in the rubber carrier plate also presents many difficulties. First the stiff metal causes the adhering metal to break down over time Connection between metal and rubber, so that the metallic bristles are pulled out of the carrier plate after a certain time. Second, the metal is subject to corrosion and fatigue, which can break even with normal use the bristles can lead.

In another known hairbrush, attempts were made to overcome the disadvantages of these hairbrushes mentioned in the last paragraph

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avoid. This brush has metallic bristles instead Use of nylon bristles. Although this avoids the problems of corrosion, the problem of the adherent remains Connection of the bristles with the rubber, as well as the signs of fatigue the bristles. Although this brush is a little cheaper because of the plastic bristles, its normal lifespan is somewhat less. Nylon can show signs of fatigue more quickly, and the bonding of the nylon bristles to the rubber backing plate is more difficult.

It is therefore the object of the invention to avoid the disadvantages and difficulties mentioned as far as possible to design a hairbrush so that it allows deep penetration and, on the other hand, allows it to slide past buns permitted. The hairbrush should enable the use of stiff bristles and a flexible carrier plate and still be proportionate be cheap to manufacture and have a long service life.

This task is done with a hairbrush with stiff bristles solved by the subject matter of the invention in that the carrier plate is formed by a number of concentric rings is that webs connect adjacent concentric rings flexibly, and that the stiff bristles on the concentric rings are arranged. The stiff bristles can therefore penetrate deeply into the hair, but easily slide past knots, what is made possible by rotating the concentric rings around their flexible webs.

In an advantageous development of the invention, both the bristles and the concentric rings on which the Bristles are arranged to be formed from the same material. The production can therefore be carried out in one step. The manufacturing cost can be reduced considerably as a result.

Preferably the hairbrush is molded from polypropylene containing about 10 percent by weight oleic acid. This composition enables a "lubricant effect", which encourages the bristles to slide past the hair knot ·

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In an advantageous further development of the invention, the webs which connect the concentric rings with a specific Geometry arranged. The webs are arranged opposite one another in a special way and so that those webs which connect a first pair of concentric rings, about around 90 are offset with respect to the webs, which a third concentric Connect the ring to the adjacent one of the first two rings. As a result, the concentric rings allow the cheapest Degrees of freedom. In contrast to the two outermost concentric ones Rings each of the inner rings can have three degrees of freedom.

H There is preferably one under the concentric rings

arranged flexible support material. This support material limits the movement of the concentric rings. The support material also provides support the rings further inside at a greater height. This enables a curved arrangement. That's why the central bristles penetrate deeper into the hair. Since these bristles have the greatest freedom of movement, they can move more easily on topknots as the outer purse glide along. Because of the Bulge, the outer bristles do not reach as deeply and not into so much hair that it doesn't require as much freedom of movement.

The invention is to be explained in more detail with the aid of the drawing be fc. Show it:

Fig. 1 is a view of a hairbrush according to the invention; Fig. 2 is a rear view of the hairbrush in Fig. 1?

Fig. 3 is a longitudinal section along the line 3-3 in Fig. 1;

Figure 4 is a cross-sectional view taken along line 4-4 in Figure 1; and .

5 shows a partial section through the bristle part of the hairbrush according to the invention, which to facilitate freedom of movement the concentric rings is used.

Fig. 1 shows the preferred embodiment of a hairbrush according to the invention. The hairbrush has a base

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part 3 with a handle 5 and a support frame 7 for a carrier plate. The base part 3 consists of polypropylene with 10 Weight percent oleic acid.

The support frame 7 has an elliptical opening 9. In the elliptical opening 9 are a number of concentric ones Rings 11 arranged. In the central elliptical ring lic an elliptical plate 13 is provided. Although the concentric Rings are elliptical in the preferred embodiment, can also be used for special requirements another training can be chosen.

Web 15a connect the outer concentric ring 11a with the support frame 7. As shown in Fig. 1, four webs 15a are provided, which are about 45 opposite the main axis and the minor axis of the elliptical opening 9 are offset. The bridges 15a allow only one degree of freedom of movement for the outer rings 11a. The outer ring lla can therefore only be in move in a direction perpendicular to the plane of Fig. 1, i.e. into or out of the plane of the paper *

There are two bars for the other concentric rings arranged opposite each other, which flexibly connect two adjacent rings with one another * The webs, which are a first pair of Connecting rings are offset by approximately 90 ° with respect to the webs which connect a third ring to an adjacent one of the first two rings. This means that the webs 15b are arranged opposite one another along the plane axis of the elliptical opening 9 are, and flexibly connect the rings llä and Hb to one another. The webs ISc are opposite along the main axis derelliptical opening 9 and form a flexible * The connection of the two adjacent rings 11b and 11b are arranged opposite one another along the plane axis of the elliptical opening 9 and connect the two adjacent ones Rings, namely the ring He and the elliptical plate 13 * Although the hairbrush 1 in FIG. 1 has three concentric rings 11a-c and an elliptical plate 13, the elliptical Plate 13 can also be a concentric ring, which optionally can be surrounded by further concentric rings - around these

modified embodiment is to be considered in the following Description of the elliptical plate 13, or of an inner concentric ring.

Furthermore, the two webs, which are a first pair of concentric rings in an opposing arrangement, are flexible connect, offset by about 90 ° with respect to the webs, which form a third concentric ring with an adjacent one of the first connect both rings. For example, the webs 15c are arranged opposite one another and connect a first pair of rings 11b and lic and are offset by 90 ° with respect to the webs 15b, which have a third ring 11a with the adjoining ring lib P connect the first two rings 11b and lic.

On the rings 11 and the elliptical plate 13 are stiff bristles 17 arranged. In the preferred embodiment consist of the stiff bristles 17, the webs 15, the elliptical plate 13, the rings 11, the base part 3 with the handle 5 and the support frame 7 are made of the same material and are molded in a single manufacturing stage * All these parts therefore preferably consist of polypropylene with about 10 percent by weight oleic acid.

Fig. 3 shows an advantageous development of the hairbrush according to the invention. A base 19 is arranged under the rings 11, which form a carrier plate for the bristles 17 Ψ * The base 19 consists of a sponge-like material 21 which is arranged over a non-flexible support plate 23.

The stiff bristles 17, which are arranged on the concentric rings 11 further inside, protrude with their Ends 24 (Fig. 3) further in front than the borates 17, which are connected to the next outer rings 11 are arranged * For example the bristle 26 has an end 24 on the elliptical plate 13, which protrudes further than the end 24 of the bristle 28 on the ring lla *

As can best be seen from Fig * 4, this is sponge-like material 21 formed so that each of the following Ring 11 is supported at a greater height so that see the

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arched arrangement of the bristles results. The non-flexible pad 23 limits the movement of the rings 11 and the plate 13, thereby preventing the bristles 17 from sticking to another Attack ring 11.

In the preferred embodiment, the sponge-like Material 21 can be coated with an impermeable layer 25 (FIG. 3). An impermeable layer 25 prevents the sponge-like material 21 absorbs water when the hairbrush is immersed in water. By making an appropriate selection the amount of the sponge-like material 21 relative to the total weight of the hairbrush 1, the hairbrush 1 can be formed become that she swims. If this is to be achieved is it is of course also expedient that the handle 5 is hollow.

The combination of the stiff bristles and the relatively flexible ones concentric rings allows the hairbrush according to the invention a deep and easy penetration into the Hair allowed, although there is a slip past topknot. As can be seen from Fig. 1, the outermost ring 11a has only one degree of freedom of movement. Therefore there can only be one movement perpendicular to the plane of the paper. The next ring 11b has two degrees of freedom of movement, i.e. in one direction perpendicular to the plane of the paper and around the minor axis of the elliptical opening 9. The third ring lic and all further inside Rings and the elliptical plate 13 have three degrees of freedom of movement, namely perpendicular to the plane of the paper, around the minor axis of the elliptical opening 9 and around the main axis of the elliptical opening 9.

Therefore, if any of the stiff bristles 17 of the inner Rings 11 strikes a topknot, the bristle 17 moves the concentric ring 11 around the webs 15 on which they are arranged is in one or more directions of freedom of movement. Because the outer rings don't have that much freedom of movement like the inner rings have, they don't slide past the topknot as easily. That's why these outer rings can do this can be used to brush out more difficult tangles of the hair. .....-- ,,.

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In particular from Fig. 4 it can be seen that the arched arrangement of the bristles 17 by the formation of the sponge-like Material 21 ensures that the bristles 17, which are arranged on the inner rings, penetrate deeper into the hair, than the bristles 17 arranged on the outer rings 11. Since the deeper penetrating bristles 17, which have a large Have freedom of movement, more likely to respond to the unexpected Can hit hair knots, they can easily slide past them. This is in contrast to the bristles 17 on the outer rings 11, which do not have as much freedom of movement. These encounter knots more often and therefore serve optionally to eliminate them.

The degree of rotation of the hairbrush will be explained in connection with FIG. Line 27 corresponds to Normal position of the rings 11b and lic. When hitting a knot the bristles 17 deform from the normal position of the rings lib and lic into that shown in FIG. 5, for example Location. In this way, the stiff bristles 17 easily slide past any knots or other obstacles.

Further advantages of the invention can also be recognized from the above explanation. Since the whole structure with the Base part 3, the handle, the support frame 7, the concentric rings 11, the elliptical plate 13, the webs 15 and the

fe stiff bristles 17 is formed from the same material, and because only a single manufacturing step is required, the manufacturing costs are compared to other manufacturing processes much lower. Furthermore, there are no difficulties with regard to the arrangement of the bristles 17 on the carrier plates in the form of concentric rings 11. There are no corrosion problems, since the bristles 17 are made of plastic, signs of fatigue do not occur, since the bristles 17 are very stiff and relatively less flexible, also wear at the connection point between the bristles 17 and the rings 11 does not occur, since these elements are formed in one piece. Still will the advantage achieved that the bristles penetrate deeply and easily slide past knots or the like.

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In other embodiments of the invention, for example, instead of propylene, 10 percent by weight oleic acid, To achieve a self-lubricating structure to improve the sliding effect, another material can be used. Although the inner webs 15 by 90 relative to the elastically connected Section that connects adjacent concentric rings, this arrangement can be made according to the extent and the number of degrees of freedom which the carrier plates and the concentric rings are to have. That Sponge-like material 21 can also have a different shape in order to meet different requirements, or the length of the bristles 17 can be adapted to special requirements.

Claims

Claims (19)

Claims Hairbrush with stiff bristles on a flexible support, characterized in that the carrier consists of a number of concentric rings (13} that webs (15) these rings connect flexibly, and that the stiff bristles on the rings are arranged. 2. Hairbrush according to claim 1, characterized in that that the webs are arranged opposite one another and connect adjacent rings to one another. 3. Hairbrush according to claim 1, characterized in that the bristles on the further inside lying rings are arranged, with their ends protrude further than those bristles that are located on further out Rings are arranged. 4. Hairbrush according to claim 1, characterized in that that the webs connect adjacent rings in an opposing arrangement. 5. hairbrush according to claim 4 # characterized thereby- fc draws that the ridges that make up a first pair of rings connect, for example S) Cr are offset from the webs that connect a third ring to an adjacent one of the first two rings, 6. Hairbrush according to claim 4, d a d u r α h g e k e η η r- z eieh η e t in that a pad is provided ,, which limits the movement of the concentric rings. 7. A hairbrush according to claim 4, characterized in that a pad supports each inner ring in one -v higher position. r BATH ORIGINAL 00 > B 8 «hairbrush according to claim 4, characterized in that that the movement of the rings is limited by a pad, and that each inner ring is in a higher position is supported. 9. Hairbrush according to claim 1, characterized in that that a pad limits the mobility of the rings. 10. Hairbrush according to claim 9, characterized show that the pad is located further inside concentric ring is supported in a higher position. 11. Hairbrush according to claim 10, characterized z e i chne t that the webs that a first pair of concentric Connect rings, offset by about 90 with respect to the webs, which a third concentric ring with an adjacent one of the first two rings. 12. Hairbrush according to claim 10, characterized in that that it consists of propylene. 13. Hairbrush according to claim 12, characterized in that that it contains about 10 weight percent oleic acid. 14. Hairbrush according to claim 10, characterized in that that the pad is a layer of spongy material over a non-flexible support plate is arranged. 15. Hairbrush according to claim 14, characterized ge k ^v e \ n. -n, -draws that the layer of the sponge-like material is covered with a water-impermeable coating. 16. Hairbrush according to claim `` l '' d a d-u r c h g e k e η η --drawn, that the outer rings have less freedom of movement than the inner rings. 209824 / 0QL5.8 17. Hairbrush according to claim 4, characterized that the outer rings have fewer degrees of freedom of movement than the inner rings. 18. Hairbrush according to claim 9, characterized draws η et that the outer rings have less freedom of movement than the inner rings. _Λ 19. Hairbrush according to claim 18, characterized shows that the outermost ring has a degree of freedom of movement has that the next ring has two degrees of freedom of movement and that the remaining rings have three degrees of freedom of movement. 2098 24/00 5 8 ORiGiNAt INSPECTED