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Title:
POCKET AUTOMATIC ASSEMBLY FOR WASHING AND MAINTINING THE DENTAL HYGIENE
Document Type and Number:
WIPO Patent Application WO/2005/120287
Kind Code:
A2
Abstract:
Pocket automatic assembly composed of a small number of smart parts, enables the assembly functioning at the simultaneous performing of the entire working cycle in and on the assembly. The basic advantage is: - pocket dimensions, the anatomic shape according to the hand fist, - universal for left-handed and right-handed person, - activation with one move of the first thumb, - coming-out of the brush (18) on the height of 18cm and setting a dose cf the tooth paste on it, - correct position of the brush for cleaning the teeth from above downwards, - easy foldable parts that can be decomposed and cleaned, - the reservoir contains 9 doses of the tooth paste and it can be refilled, - the brush head (26) that can be replaced after it is worn out, - safe use at work, on voyages, at school, - application possibility for the marketing purposes, - it can be used by children and adults from 7 to 77 years, - it acts preventively on the protection and maintenance of the dental hygiene, - line machine arranging of all assembly parts, - low price that is competitive even to the ordinary brush.

Inventors:
VELICKOVIC PJER-MISE (HR)
Application Number:
PCT/HR2005/000030
Publication Date:
December 22, 2005
Filing Date:
April 29, 2005
Export Citation:
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Assignee:
VELICKOVIC PJER-MISE (HR)
International Classes:
A46B5/00; A46B11/00; A46B13/00; A46B17/04; A61C17/00; (IPC1-7): A46B13/00
Foreign References:
EP0308549A11989-03-29
US20020090250A12002-07-11
US2025591A1935-12-24
DE202004006435U12004-07-22
Download PDF:
Claims:
PATENT CLAIMS
1. Pocket automatic assembly, characterized by that, when watched from outside, it is made of two parts, handle casing (10) and reservoir casing (29). The shape of the assembly from outside is round. It is made in accordance with the fist anatomy of the hand and is universal either for lefthanded or righthanded person. It is connected by means of lateral grooves (15) and furrows (30) on the reservoir and handle casings. The assembly is composed of handle casing (10), reservoir casing (29), brush head handle (20), piston (28) and spring (19). Each of the mentioned parts performs several important functions for the correct work of the assembly. It is activated by a single downward pressing of the thumb onto the toothed side of reservoir casing (42). The size of the assembly does not exceed the size of the hand fist and is suitable for carrying it in the pocket or in the handbag.
2. Pocket automatic assembly according to patent claim 1, characterize d by that the outer rounded side of the assembly, Fig.l, can be used also as the advertising panel for various marketing messages. The shape of the assembly appearance belongs to this model of the pocket automatic assembly.
3. Handle casing (10) accordance to patent claim 2, characterized by that it contains: closer (12) of the assembly cover, elastic furrow (14) for the rotation of the handle with the brush head; the corrector of brush bristles (18) when it is in the closed position; spring guide (17); openings (13) for the air underpressure and water discharge; side grooves (15) for the sliders and for connecting to reservoir casing (29), and feet (16) for blocking the piston at the flowingout of the tooth paste on the brush. The shape and the appearance of the handle casing belong to this assembly model.
4. Reservoir casing according to patent claim 3, characterized by that it contains: cover (31) with elastic springs (36) for the cover opening; the furrow on the cover for lockingup (37); opening for the tooth paste flowingout on the brush (13), which is connected with the reservoir; lateral feet for lifting the piston (33) when the reservoir is being emptied; lateral furrows (30) that connect the reservoir casing with the brush handle casing (10) and in the same time are also the sliding parts on which slide the assembly casings. The shape and the appearance of the reservoir casing belong to this assembly model.
5. Handle of brush head (20) according to patent claim 4, ch ara cterized by that it contains; wedge (22) that connects and fastens (21) the brush head to the handle; spiral vertical groove (24) on which rotates handle for 90° in the desired sense about elastic furrow (14) on handle casing (10); then, opening for the spring (25) on the bottom of the handle, which extends up to the handle top; then, grooves (23) on the bottom of the handle for closing the opening for the air and for the flowout of the water at cleaning. The shape and the appearance of the brush handle belong to this assembly model.
6. Brush head, Fig.6, according to patent claim 5, ch aracterized by that it contains: groove (28) on the bottom for fixing the brush head to pin (22) on the handle; elastic pincers (27) that fasten the brush head to circular groove (21) on the handle and enable its takingoff; then, vertical groove (26) on the back of the brush head for the motion on elastic furrow (14) on the handle casing.
7. Reservoir piston (18) according to patent claim 6, ch aracterized by that it contains: elastic lateral wings (40) in the stretched position, which serve for lifting the piston over feet (33) in the reservoir casing; then, elastic tail (41) that serves for blocking the moving of the piston on handle casing (10) at the flowingout of the tooth paste on the brush head.
8. Spring (19) according to patent claim 7, ch aracterized by that it is of conical shape with a slight inclination; that its wider crosssection leans against the bottom of handle casing (10) and the narrower one borders with the upper inner side of the groove on mentioned handle (20).
9. Pocket automatic assembly according to patent claim 8, characterize d by that its functioning is carried out by the following schedule: by the downward sliding of the reservoir casing simultaneously the assembly cover is opened and liberates the handle with the brush head for the motion upwards, in the same time the bristles are filled with the tooth paste; the bristles on the bottom of the brush head clean the opening on the reservoir casing at the exit, then, after the brush head comes out straight, the very moment the handle comes along, the rotation in the desired sense starts, what depends on whether the user is a left or righthanded person; at the use it is necessary to press the cover by the thumb towards the handle in order to block its downward motion. The work principle of the assembly belongs to this model of the pocket automatic assembly.
10. Pocket automatic assembly according to patent claim 9, characterized by that, after emptying, the tooth paste dose in the reservoir can be filled up in a way that the reservoir casing is dragged downwards until the entire reservoir length is not opened in order to be filled up easily with the tooth paste, and that, after the reservoir fillingup, it returns back into the initial position and the cover of the assembly is closed. The way and the principle of the assembly filling belong to this model of the pocket automatic assembly.
11. Pocket automatic assembly according to patent claim 10, characterized by that the brush head itself can be replaced when it is worn out, and by that the duration time of the assembly is prolonged. The appearance of the brush head belongs only to this model of the pocket automatic assembly.
12. Pocket automatic assembly according to claim 11, chara cterized by that the entire assembly can be easily composed and decomposed during the cleaning and washing of its inner parts. U ZO.
Description:
POCKET AUTOMATIC ASSEMBLY FOR WASHING AND MAINTINING THE DENTAL HYGIENE

INVENTION DESCRIPTION

Field of technique

This invention is related to the maintenance of the dental and mouth space hygiene by means of the pocket automatic assembly that is activated by one thumb press on the assembly cover. So, as the brush comes out of the assembly, simultaneously on it there is also the tooth paste. It has also the possibility of filling the assembly with paste and of replacing the wasted brush. According to the international patent classification (IPC), it is classified as A 61 C - maintenance of the dental and mouth hygiene.

Technical problem

Throughout the years one of the problems is, how to make the pocket assembly for washing and maintaining the dental and mouth hygiene that would not be bigger than of the fist size. An assembly that could easily be carried in the pocket or handbag. An assembly that would last longer than the other ones on the market. This problem had to be solved in a way that the assembly contains both the tooth paste and the brush, and that it could be activated by one move of the fist thumb. The problem was particularly difficult to be solved due to the small size of the assembly, the small number of its composing parts, the drying and stopping up of the channels for the tooth paste passage, then due to the adjustment of the entire cycle in the assembly in order that all actions would terminate simultaneously. So, that, when the brush comes out, simultaneously on it also the tooth paste would be in the position that conditions its correct using at the teeth cleaning. An assembly that would enable the filling with a new tooth paste after the paste doses are spent, and an assembly in which only the brush head would be replaced in case of being worn out. Also, an assembly had to be invented, which could be used by both the left- and right-handed person. It was necessary to satisfy the daily needs for washing and maintaining the teeth hygiene outside the home, at work, during the voyage and at school. Naturally, to make an assembly that would be simple and safe for being used both by the children and the adults.

State - of - art

Up to now, many solutions of this problem have been proposed and made, with more or less success on the market. All proposed assembly devices required a certain time to be used for the teeth cleaning. Some tried to pack a small brush in two parts and a small dose of the tooth paste for two washings into a small box, and after being used it was thrown away into the garbage. Such types of products required a complicated use and didn't achieve the desired results on the wider market. Some others tried to make a channel for the passage of the tooth paste onto the brush through the brush itself. The paste reservoir would be placed into the brush handle, and the tooth paste has been pressed through the channel on the brush, by turning the axle and by lifting the piston. But, they encountered the problem of the paste drying and of the stopping-up of the small channel diameters in the brush due to its dimensions. It is very difficult to clean the channels in this assembly, because it is impossible to reach them. This assembly type is of a normal tooth brush size (180cm), and there were no pocket measures. Also, it required a certain number of moves in order to activate and use them. All mentioned assemblies are complicated for the production and putting together, and they raise the price of the product on the market.

Disclosure of the invention essence

The primary scope of the invention is to activate the pocket automatic assembly with one move of the fist thumb in a way that, at the brush coming out, on it there would be also the tooth paste for washing and maintaining the teeth and mouth. That the position of the brush, when coming out of the assembly, would condition the correct use and the teeth washing from above downwards. That the pocket automatic assembly would be made according to the anatomy and the size of the fist. That it is universal both for the left- and right-handed person and that it is safe for using and light at transport. Also, that it is possible to refill the assembly after the 9 tooth paste doses are empty as well as to replace the brush head when it is worn-out. Also, that all parts can be easily decomposed and composed for a regular cleaning and maintenance of the assembly.

The secondary scope of the invention is to secure, improve and connect in one whole the assembly with as few parts as possible, in order to obtain such a functional assembly that is more durable than the other ones offered on the market. Also, that its parts are safe for use and that they can perform all the necessary activities in the cycle at the activating. That the process at composing the assembly parts can be made by the machine, in order to get the least possible production price that will be competitive to the other products of a similar assignment on the market.

The further scope of the invention is to enable, that the outer casing of the entire assembly can be used for the marketing purpose as an advertising panel. The pocket automatic assembly, as a personal thing, becomes a suitable present to any person, and sending in the same time the mentioned advertising message on the very assembly.

The additional scopes and advantages of the invention will partly be presented in the following description and partly will be learned through the invention application.

The pocket automatic assembly for cleaning and maintaining the dental and mouth hygiene according to this invention comprises the outer casing of the assembly that consists of two parts: the casing of the handle (static) and the casing of the reservoir (dynamical); by pressing the reservoir casing downwards, certain activities in the assembly itself are activated, firstly, the opening of the assembly cover , then, simultaneously the lifting of the handle with the brush head by means of a spring and the filling of the brush with the tooth paste; the handle with the brush and paste rotates after the filling for 90° in the desired sense depending on the either left-handed or right-handed user; after stopping the handle with the brush head on a normal height of 18cm, the further downward motion of the handle is blocked by pressing on the automatically adjusted cover of the assembly casing in the direction towards the handle, in the reservoir casing there is a piston with wings and a tail that help to press out the tooth paste on the brush; the wings on the piston move on the lateral sides of the reservoir interior and the tail of the piston moves on the outer side of the cylinder casing; after the pocket assembly is used and the brush is washed, the reservoir casing is returned into the initial position and the handle is returned into the handle casing, then, the cover of the pocket assembly is closed. After emptying the 9 doses of the tooth paste in the assembly, the filling of the assembly with a new tooth paste is enabled in a way that the casing of the assembly reservoir is drawn downwards to the end of the container top, the little piston is returned on the reservoir bottom and the filling of the tooth paste along the entire reservoir is performed, after filling the reservoir, the casing of the assembly is returned into the initial position and the cover of the assembly is closed.

The advantage is also given at the replacement of the brush when it is worn out, in a way that it can be easily taken off the pin on the brush handle, and a new brush head can be inserted and fixed, it is sufficient to push the brush head on the wedge and it fastens itself alone by means of it's pincers at the pin on the handle.

Primarily, the device for pressing the handle and the brush head upwards includes the spring that is placed, when folded, in the opening on the bottom and on the handle itself, i.e. on the spring guide in the inner part of the bottom of the handle casing and of the upper part of the inner opening in the brush handle. The spring can also be of conical shape, with a mild inclination of its slopes, in order to avoid its lateral curving during the folding.

Short description of the drawings

The Figures are presented as spatial views (iso-metric drawings) onto the entire assembly and onto the assembly parts denoted from 1 to 8.

The first two Figures 1 and 2 represent the assembly in the closed position and in the activated open position. The other Figures represent the assembly parts with the denoted position on them.

Also, the top-views on the assembly and the assembly parts are presented, and they are denoted by the sign (') above the Figure number. Also, they contain the denoted position on them. All positions on the Figures of the assembly and the assembly parts are denoted with two-digit numbers from 10 to 41. Each position on the assembly part has its unique number that represents it on all Figures, where it can be seen.

Figure 1 presents the spatial view on the closed automatic assembly, constructed in accordance with the described invention Figure 1' presents the top view of the bottom of the pocket automatic assembly Figure 2 presents the spatial view of the open pocket automatic assembly that is constructed in accordance with the described invention Figure 3 presents the spatial view of the casing of the brush head handle Figure 3' presents the top view of the bottom of the brush head handle Figure 4 presents the spatial view of the spring, which has a greater diameter on the bottom and a smaller one on the top Figure 5 presents the spatial view of the handle with the pin for the brush head Figure 5' presents the top view drawing of the bottom of the brush head handle Figure 6 presents the spatial view to the brush head Figure & presents the top view drawing of the bottom of the brush head Figure 7 presents the spatial view on the reservoir casing Figure T presents the top view drawing of the bottom of the reservoir casing Figure 8 presents the spatial view of the piston in the reservoir for pressing the tooth paste Figure 8' presents the top view drawing of the reservoir piston

The positions on the Figures are described by the two-digit numbers:

Position 10 presents the casing of the brush handle Position 11 presents the space where the brush handle is placed Position 12 presents the closer of the assembly cover Position 13 presents the opening on the bottom of the handle casing for the air under-pressure and the water discharge from the casing at the cleaning Position 14 presents the elastic groove about which rotates the brush handle for 90° to the left or to the right Position 15 presents the side grooves-sliders, which serve for connecting the assembly and for the sliding at the reservoir casing Position 16 presents the impressed feet for blocking the reservoir piston on them, when the tooth paste leaves the reservoir Position 17 presents the space of the spring guide in the inner bottom of the handle casing Position 18 presents the lateral sides of the bristles corrector in the assembly Position 19 presents the spring made of the Stenly-stile material, of the mild conical shape Position 21 presents the circular groove for fixing the brush head to the handle Position 22 presents the wedge for preventing the rotation of the brush head on it Position 23 presents the cross grooves for closing the bottom of the brush casing Position 24 presents the spiral groove for the handle rotation for 90° Position 25 presents the opening in the handle for placing the spring Position 26 presents the brush head with the bristles Position 27 presents the elastic pincers on the bottom of the brush head Position 28 presents the groove for connecting the brush head with the pin on the handle Position 29 presents the reservoir casing Position 30 presents the lateral furrows for connecting the sliders with the handle casing Position 31 presents the assembly cover on the reservoir casing Position 32 presents the space in the reservoir for the tooth paste Position 33 presents the laterally pressed feet for lifting the reservoir piston as the tooth paste doses are consumed Position 35 presents the opening for delivering the tooth paste on the brush bristles Position 36 presents the elastic springs for opening the assembly cover Position 37 presents the furrow for closing the assembly cover with the handle casing Position 38 presents the reservoir piston Position 39 presents the piston holders that prevent for curving in the reservoir Position 40 presents the lateral elastic wings that serve for lifting the piston upwards, as the reservoir gets empty Position 41 presents the elastic piston tail that serves for blocking the piston motion at the getting-out of the tooth paste Position 42 presents the toothed inclined part of the reservoir casing, made according to the hand fist anatomy

Referring to Figures 1 and I1 it can be seen, that the assembly from the outer side comprises the casing of the brush handle, Fig.l' - 10, and the reservoir casing, Fig.l' - 29, with the elastic cover of the entire assembly, Fig. 2 - 31. On the top view drawing, Fig.l1, it can be seen that the entire assembly is rounded, without sharp angles. That gives to it the possibility of being used for the marketing purpose, as an advertising panel. The assembly part where the thumb of the hand comes, Fig.2 - 42, is slightly toothed, so that it might not slide under the thumb of the hand.

In Figure 2 it can be seen, how the assembly looks like when it is open, handle 20 with brush head 26 is rotated for 90°. The rotation sense depends on, whether a left-handed or right-handed person uses it. Assembly cover 31 is entirely open to enable a disturbless coming-out of handle 20 with brush head 26 and the tooth paste. Handle 20 with brush head 26 stops at the end of spiral groove 24 on it. At that, elastic small springs 36 help cover 31 by tensioning it into that position. For using the assembly it is necessary to press cover 31 with the thumb towards handle 20 of the brush head, in order to block its downward motion. Figure 3 presents the important parts on the casing of handle 10 of the brush head, such as position Fig.3 - 12, the closer of the assembly cover. Fig.3 - 14 presents the elastic furrow for the rotation of the handle with brush head in handle casing 10. Fig.3 - 18 presents the correctors of the brush bristles, when it is in the closed position. In Figure 3 - 16 it can be seen, how the little feet for blocking the piston at the tooth paste pressing-out on the brush head are placed. In Fig.3' - 13 the openings on the bottom of the brush handle casing for the water discharge during the assembly cleaning can be seen. Openings 13 serve to prevent also the creation of the under-pressure at the handle coming out from the casing. And in Figure 3' - 15 the left and right grooves for the connecting of the assembly with the reservoir casing are presented. They serve to enable a disturbless sliding of the reservoir casing on them and to prevent the tooth paste leaking from the reservoir.

In Figure 4 spring 19 is presented, which enters with its narrower part into the opening in title handle, Fig.5' - 25, of the brush head, and leans with its winder part against the bottom in inner part 17 of the handle casing. In such a way it presses the handle upwards and in the same time rotates it via the groove on handle 24 and the elastic furrow, Fig.3 - 14. Spring 19 reminds by its form on a cone, with a slight inclination to prevent its curving at the folding-up.

Figure 5 presents handle 20 of the brush head, which consists of handle body, Fig.5 - 20, and the pin on the handle top, Fig.5 - 22. Opening 25 for placing spring 19 is positioned through the handle body from the bottom to the pin. The pin itself consists of two parts. The first upper one fixes the brush head to the handle and prevents its rotation and swaying 22. The other lower part of the pin has a circular groove that firmly connects the brush head to prevent its falling out of the handle 21. On the handle bottom four grooves are presented, Fig.51 - 23, that lean against the handle casing, and in such a way they close the opening for the air and the water discharge 13. According to this embodiment, the brush head, Fig.6, can be replaced after it is worn out. It can be easily connected to the handle via the pin on the handle, Fig.5 — 22 and Fig.5 — 21 and the groove in the brush head itself, Fig.6 — 28, and the elastic pincers 27 that connect them firmly with handle 20. On the brush back itself there is vertical groove, Fig. 6 - 26, in which enters elastic furrow 14 that is placed on handle casing 10. hi the inner space of the brush head itself there is groove 28 with elastic pincers 27, through which passes wedge 22 with circular groove 21, see Fig.2.

In Figure 7 the appearance of reservoir casing 29 can be seen. It is open by its entire length for an easier filling with the tooth paste 32. Fig.7 — 33 presents the appearance and disposition of the lateral feet for lifting the piston upwards, as the reservoir gets empty. As in Fig.l' so also are in Fig.7 - 30 presented the furrows that enter into grooves 15 on the casing of the brush head casing. In such a way they slide on them.

The last part of the assembly is presented in Fig.8 - 38 and represents the piston of the reservoir that moves in the assembly by means of the wings and tail. Wings 40 enter in lateral feet 33 in the inner part of the reservoir casing, and tail 41 enters into the feet on the handle casing 16. Wings 40 and tail 41 on the little piston are elastic and have the tendency of stretching. In such a way they always lean against the little feet on handle casing 16 and reservoir casing 33. In Fig.8 - 39 the appearance of the piston holder is presented in the horizontal position. It 39 prevents the piston curving in the reservoir.

Invention application way

This invention of the pocket automatic assembly enables a practical, durable and useful device that can be economically produced and arranged by means of the machine in one whole. In such a way it can achieve a small competitive production cost even to an ordinary tooth brush. Also, this assembly enables the sale of spare brush heads. It is much better than all at present known devices of this purpose. Also, it includes all necessary improvements, as at activating it by one move of the fist thumb so also at filling it with the tooth paste after emptying the reservoir and at the possibility of replacing the worn-out brush head with a new one. Its application is at work, in the school as well as in the terrestrial, air and maritime transport.

AA Applicnt:

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