WO1996010351A1

WO1996010351A1 - Tooth brush with incorporated tooth paste reservoir

Info

Publication number: WO1996010351A1
Application number: PCT/ES1995/000108
Authority: WO
Inventors: Domingo Obradors Giro
Original assignee: Domingo Obradors Giro
Priority date: 1994-10-03
Filing date: 1995-10-03
Publication date: 1996-04-11
Also published as: EP0746993A1

Abstract

Tooth-brush with incorporated tooth-paste reservoir, comprised of a conventional tooth-brush provided with bristles at one of its extremities, having a handle slightly smaller in size than conventional handles, and having in the internal area of the brush a channel which communicates the emerging extremity with the lower area of the bristles, a reservoir of tooth-paste being joined to the extremity of the tooth-brush, said reservoir being actuated in order to extract the tooth-paste towards the lower zone of the bristles by means of a lateral flange which is situated in the lower part of said reservoir, a threaded mechanism collaborating with the external surface of the reservoir, or by means of an impulse pump acting in the vertical rising direction.

Description

/ 10351 PC17ES95 / 00108

one _

TOOTHBRUSH WITH INCORPORATED PASTA DEPOSIT

DESCRIPTION

OBJECT OF THE INVENTION

The present specification refers to a toothbrush with a built-in toothpaste, whose obvious purpose is to act on the one hand, like a conventional brush, according to the bristles incorporated in one of the ends thereof, while for the another has in its own body a deposit inside which is located the toothpaste, necessary teeth for its relevant and positive performance.

FIELD OF THE INVENTION

This invention has its application within the industry dedicated to the manufacture of brushes, especially hygienic brushes for dental application.

BACKGROUND OF THE INVENTION

At present, for the realization of dental hygiene, there are brushes of various shapes and sizes, some static and others sectioned, mechanically or electrically in order to facilitate the friction of the teeth, which are placed on their bristles, the adequate amount of paste to achieve a perfect cleaning of the teeth.

This paste is sold in a separate tube, which, each time it is used, this paste must be opened and placed on the brush, an operation that generates the fact that the inside of said paste container tube is constantly in contact with the outside and, in addition, the usual causes a The same tube is used by several people, so it is very possible that in itself, the tube itself becomes a carrier of germs that are transmitted from one to the other components of the family unit, using the paste tube as a contagion route in question, which is used by all members, without at any time being able to realize the potential risk that it entails.

The obvious solution to this problem would be to have a brush, exclusive and personal use, that was able to generate from its own application and through a very simplified movement, a quantity of paste that was located in the area of the bristles, the brush having ^a deposit inside of which the toothpaste is located, without being able to be used by another person or member that was not its owner by the external identification of the oral hygiene element itself.

However, so far, the applicant is not aware of the existence of a toothbrush that is equipped with the characteristics indicated as suitable, that is to say that it has a built-in paste container, which allows timely extraction of its content.

DESCRIPTION OF THE INVENTION

Toothbrush with paste deposit incorporated, which the invention proposes, constitutes by itself only an obvious solution to the problem currently existing in this matter, since from it it is possible to avoid the possible contagions that the use of a community employment tube can generate.

More specifically, the toothbrush with built-in toothpaste, object of the invention, is constituted as a toothbrush, which incorporates a tank that has inside the toothpaste necessary for its use, based on the which, because it is a brush for personal use, said paste will be for the sole use of a single user, which resolves in a restrictive way the hygienic problems of transmission of germs or any other risk factor that occurs with traditional brushes.

On the margin, as a result of having turned the brush handle into a paste-carrying tube, it adopts a configuration that is significantly more comfortable to grab by the user's hand, thereby achieving a substantial improvement in its use.

To achieve this purpose, the toothbrush has an upper part composed of the element carrying the brush itself, with a conduit inside which connects the lower part of the bristles with the junction area between said brush and the tank, the which will also be the carrier of the toothpaste drive element.

The tank incorporating the impeller element will be dispensed apart from the brush, provided with a lid and the paste being protected inside by a membrane for, at the moment in which the connection by rotation, insertion, or the like with the brush is desired, the assembly of the object of the invention will be formed, drilling the end of the brush the protective membrane and contacting at that time the Paste incorporated in the tank with the brush area, once the two pieces are assembled or coupled.

The driving element of the toothpaste that is included in the body of the tank itself, is configured in a first embodiment by an outer crown located in the lower part thereof, to which an axis provided with a helical thread is attached internally , around which a threaded piston is placed, with external regattas through which vertical protrusions formed in the inner part of the tank are introduced.

As a result of the general configuration described above, when turning the outer wall it is forced to rotate the central axis with it and, when the piston is externally fixed, it cannot rotate but simply ascend vertically, so that the piston will push the paste dentífrica and will direct it towards the inside of the tube that connects it with the base of the bristles, through which it will be adequately controlled by the user, the necessary amount of paste to be able to perform its usual mouth cleaning operation, all with a paste dentífrica own use and perfectly separated from the outside all the time before its use ^¬.

In a second embodiment, the driving element of the toothpaste, which is included in the tank body itself, is provided in its lower part of a substantially wider diameter, narrowing punctually by means of an upper and lower perimeter wall, provided in turn with vertical regattas with their countersunk ends, around which a second hollow tube is placed that is anchored under pressure due to the effect of the extreme projections cited of the inner tube, said outer tube having an ascending helical groove on its inner part, while on the inside of the inner tube, a piston can rise from the sides of which there are two protruding studs that pass through the through hole of the inner tube and rest on the helical groove of the outer tube.

Due to the conformation described above, when printing a turn to the bottom of the central tube, holding the outer tube with the hands, the rise of the piston occurs, forced by the propeller of the outer tube and guided vertically by the tube race internal, as a result of which, when the tank filled with toothpaste is placed, the ascending stroke of the piston forces it to ascend and enter the amount determined by the user through the tube that communicates with the lower part of the bristles of the brush, being deposited in these sows, the amount necessary for cleaning the mouth.

In a third embodiment, and in view of the fact that the container container of the paste will be dispensed apart from the brush, the driving element of the toothpaste is configured as a small pneumatic pump, of conventional type, either membrane or ball, whose tubing that extends downwards, has its sharpened end to facilitate the rupture of the membrane that protects the toothpaste, while the said pump at the top is joined to the tubing presented by the brush itself, by means of a spring system, which will allow the entry of air at the desired time, in order to boost the amount of toothpaste required to the bristles of the brush, so that The usual mouth cleaning operation can be performed, all with a toothpaste for own use and perfectly separated from the outside, during the entire time of its use.

Optionally, and in a fourth embodiment, under the protected object in the third embodiment of the invention, the toothbrush incorporated at the end of the body, of the toothpaste container can be replaced by a similar actuation element in the interior of which, in replacement of the toothpaste, shaving cream is incorporated, fixing at the top end of this element a razor of replaceable blades, provided with a through hole or channeling that carries the amount of shaving cream necessary towards the face of the user in order to perform the same a perfect shaving, the cream being adhered from the tank incorporated inside the handle, which instead of containing toothpaste, incorporates shaving cream.

DESCRIPTION OF THE DRAWINGS

To complement the description that is being made and in order to help a better understanding of the features of the invention, four descriptive sheets are attached as an integral part thereof, in which they are illustrative and non-limiting the following has been represented: Figure number 1.- Corresponds to a perspective view of the toothbrush with built-in toothpaste, object of the invention, separated into the two fundamental elements that compose it, seen laterally, presenting the sectioned brush body and observing the channeling through which the toothpaste runs to the area of the bristles.

Figure number 2.- Corresponds to a section _j g in side elevation of the toothpaste container, which is coupled to the piece or head carrying the bristles.

Figure number 3.- Corresponds to a section ^ in elevation of the assembly formed by the parts represented in the previous figures, coupled together.

Figure number 4.- Corresponds to a duly sectioned side elevation view of the object

20 of the invention configured in a second embodiment.

Figure number 5.- Corresponds to an exploded elevation section of the tank of the second embodiment shown in figure number 4, provided with a cover

25 and in a situation prior to its use.

Figure number 6.- Corresponds to an elevation section of the object assembly corresponding to the second embodiment, fully assembled.

30

Figure number 7.- Corresponds to a partially sectioned elevation view of the object of the invention in a third embodiment, the two fundamental elements constituting it being presented separately.

35 yen Figure number 8.- Shows an elevation view of the object of the invention, represented in figure number 7.

PREFERRED EMBODIMENT OF THE INVENTION

In view of these figures, one can see how the toothbrush with paste incorporated tank, is configured in the first embodiment from a brush proper (1), with a tank (2).

The brush (1), is equipped with the relevant bristles (3), conventionally used in any brush in order to clean the user's teeth, having a short handle, provided in its lower internal part with a thread (4), constituted by an area equipped with a recess or threaded screw, to achieve its fixation with the tank (2), while from the said joining area, a hollow tube (5) emerges that communicates the lower part of the bristles (3) with the tank (2), the lower part of said tube presenting a protrusion (6) of peripheral periphery, whose purpose is to pierce the membrane (7) that presents the tube (2) and at the same time close it while not used.

In relation to the tank (2) it should be noted that before use, it is provided with a cover (9) that threads on the upper mouth (8), while in its lower part there is the tank tube (10) that has its lower part with an emergency configured as a shaft (11), provided with helical thread (12), around which a threaded piston (13) is placed and provided with recesses (14) in correspondence with projections (15) that in a number not less to two, it presents the tank (2) in its entire interior surface.

Once the toothbrush assembly has been assembled, it is configured as shown in figure number 3, in which the system or application thereof can be observed.

Consequently, when you want to perform a tooth brushing operation, it will be enough to act on the wall (10) by performing a controlled turning movement, thanks to the grooves (17) of the lower part of the tank (2), which are coinciding with the flexible projection (16) of the wall (10), whose rotation will also require turning the axis (11) carrying the helical thread (12), due to which said thread will tend to move by turning and ascending to the piston (13) of whose movements the piston (13) can only perform the ascent or ascending vertical direction, since its rotation is impeded by the complementary function of the races (14) and the projections (15), due to which the piston will go up and compress the toothpaste (18) located inside the tank (2), which as a result of this pressure will rise through the tubing (5), until it emerges and is deposited in the bristles ( 3) of the brush (1), leaving this dis put to perform its function and with the amount of convenient paste.

Following Figures 4, 5 and 6, corresponding to the second embodiment of the invention, the toothbrush with a built-in toothpaste has been constituted by a brush itself (21), and the reservoir (22), indicating that the brush (21) has the typical bristles (23) located in any brush for the aforementioned purpose, and an elongated handle, hollow internally and provided in its lower part with an element (24), which has the mission of facilitating the anchorage to the external part (36) of the tank (22) for which it has this reservoir (22) of a supplementary element (26), while the interior of the upper body of the brush is provided with a tube (27) that communicates to the lower part of the bristles (23) with the upper area of the extension of the handle that surrounds the tank, having its lower protruding end (28) with a sharp periphery that has the purpose of perforating the membrane (29) that the reservoir (22) has, closing it while it is not being used.

With regard to the tank (22), it has a lid (30) while not using a hollow central cylinder (31) that extends inferiorly in another wider cylinder (32) presenting the cylindrical tube (31) symmetrical vertical regattas on its entire surface with its ends (33) laterally countersunk, as well as two protruding walls (34) and (35) located at its ends.

Surrounding the cylinder is a second outer cylinder (36) provided in its front part with an ascending helical race (37) and projections that act as end fittings (38) that when placing said tube (36) around the tube ( 31) they lock it in the walloons (34) and (35), with the possibility of turning one in relation to the other.

On the other hand, inside the inner tube (31) there is a piston (39), provided with symmetrical projecting lugs (40), which cross the races (32) and rest on the helical regatta (37). Once the toothbrush assembly that configures the second embodiment is assembled, it has a configuration as shown in figure number 6.

It should be noted that when you want to perform a tooth brushing operation, it will be enough to act on the lower section (32) of the tank (22), pressing at the same time against the outside of the hollow cylindrical area of the part (21 ), which by effect of the retaining element (24) and (26), will be solidly attached to the outer tube of the tank (36).

Due to the double turning action on the races (32) and retention on the tube (21), the piston (40) will be forced to rise because the helical race (37) of the tube (36) on which they rest The bolts (40) of the piston (39), oblige them to carry out an ascending movement, making this movement linear, because the said bolts slide inside the vertical race (32) presented by the inner tube (31). ),

As the tank assembly above the piston (39) is filled with toothpaste (41), as a result of the movement described, said paste will rise until it enters the tube (27) and will reach the base of the bristles of the brush in the quantity that is desired being this in position to be used.

In the third embodiment shown in figures 7 and 8, can be seen as the brush (51) and the reservoir (52), are separated and in particular the reservoir (52) in its knew part ^¬ rior a thread (53) to facilitate its connection with the pump pneumatics (54) that serves as a propulsion element and that has been located inside the body (51).

Said thread (53) is intended primarily to serve as a fastener for the cover and protect the membrane (55) before the tank (52) is used.

As for the upper body of the brush (51), it should be noted that as in the previous cases, it presents in its upper part the bristles (56) used in a conventional way in the application of dental cleaning, with an elongated handle (57 ) provided in its upper part (58), of solid configuration, with a conduit (59), which emerging from the lower part of the bristles (56), extends to the upper part of the cavity (60), which will serve housing the pneumatic pump (54) and the reservoir (52), which in use position will be threaded by the area (53) to said pneumatic pump, provided with an internal thread (61), configured to such effect.

As regards the impeller device (54), or pump, it is provided with a lower tubing (62), which will be introduced inside the tank (52) and will be located inside the detrimental paste ( 63), previously passing through the membrane (65), for which it will have its sharp end (64), while through the pump closing device (65), which may be of the conventional type, both membrane, ball , or any other, the passage of the toothpaste will be facilitated or prevented.

Obviously according to the performance of the pump, it will be facilitated or the passage of the paste will be prevented dentifrice, from the lower tubing to the upper tubing (66) and (59), using a spring that is compressed between said ball valve (68) and the piston base (69), when pressing the reservoir (2), thus raising the upper outer part of the pump (65), but not the upper and inner part of the piston (69) to the pipes (66) and (59).

Once assembled the toothbrush assembly object of this third embodiment, it presents the physical configuration, as shown in figure number 8.

In summary, when you want to perform a tooth brushing operation, the first thing that will be done will be the assembly of the brush assembly, for which the cap that closes the tank (52) will be separated, while not being used for the first time once again, and then insert the tank (52) inside the extension (57) of the body (51), so that the pipe (62) will rest on the membrane (55), and as a consequence of its the sharp end (64) will tear it, thus facilitating the entry of said tube into the tank and its contact with the toothpaste (63), continuing the entry of the tank until its end makes contact with the part of the pneumatic pump (54), at which time the end (53) of the reservoir will be threaded into the thread (61) which, for this purpose, presents the pump at said point, thus leaving the assembly arranged for use.

Once the assembly is so arranged, it will be enough to push up the tank (52) so that the spring contracts and allows the entry of air into the pump, which will remain open by the indicated drive, which will allow the toothpaste (63) to exit until, in the desired amount, it is located between the bristles (56) of the brush, in order to perform the brushing function.

Claims

1.- Toothbrush with built-in paste deposit, characterized by presenting in its upper part the appearance of a traditional brush, although provided in its lower part with a tubing, which emerging from the base of the bristles, extends to the part low hollow of the same, in contact with a deposit provided with toothpaste that is threaded to the lower part of said brush, and which drives the paste without turning a side wall that is surrounding the lower part of said tank , the outer wall being attached to a vertical axis located in the inner part of the tank provided with a helical thread, around which there is a threaded piston and externally provided with vertical races in correspondence with fine vertical linear projections, located on the wall internal of the tank, which will be presented outside the brush, and in this situation it will have its upper area provided with a membrane and a threaded rear cap, membrane that, when the tank is placed against the upper body of the brush, will be punctured by a sharp extension of the paste carrying tubing to the lower area of the bristles.

2.- Toothbrush with incorporated paste container, according to the first claim, characterized in that a second embodiment, in the tank in which the toothpaste is incorporated, fixed to the bottom of the brush, has an area of attachment to a vertical tube, provided with upper and lower projection walls, around which a second ascending helical groove is fixed under pressure with respect to said wall walls, once the assembled tube assembly remains, retained to the lower wall of the brush-bearing element, while inside the central tube a piston is housed, provided with two horizontal symmetrical lugs, which pass through a vertical regatta located in the inner tube, and rest on the helical regatta of the external.

3.- Toothbrush with built-in paste container, according to the first claim, characterized in that in a third embodiment, the reservoir has a pneumatic pump that is fixed by means of a threaded area, the bottom of the same pump being located, located inside the tank, moving the pump with an upward vertical thrust movement, allowing the toothpaste to pass to the bristles of the brush, and providing the pump with an upper cylindrical extension, by which it joins the part bottom of the tubing, through which the paste passes, made in the body of the brush and related to a spring, so that when pushing with the tank, the spring is compressed and actuates the pump device, allowing the passage of Toothpaste to brush.