FR2486784A1 - DEVICE FOR BRUSHING TEETH - Google Patents

Abstract

DEVICE FOR BRUSHING ANDOR CLEANING THE TEETH ANDOR GUMS, IN WHICH THE TOOTHBRUSH IS DRIVEN BY AN ELECTRIC MOTOR. TOOTHBRUSH 1 CAN BE DRIVEN IN DIFFERENT OR ALTERNATE DIRECTIONS OF ROTATION (LEFT-RIGHT TRACK). SWITCHING TO THE SELECTED DIRECTION OF ROTATION IS EFFECTED BY A SWITCH.

Description

-1 2486784

  The invention relates to a device for brushing teeth in which the toothbrush is driven by a

electric motor.

  The use of appropriate toothbrushes is absolutely

  it is necessary to prevent tooth and gum disease (dental caries and periodontal disease). Manual toothbrushes known for decades

  must have a pile of hair as short as

  sible and the brush handle should be angled.

  Also known are drive toothbrushes

  electric which perform a pivoting movement. The incon-

  The beauty of these toothbrushes is that they do not have a good base of attack. Mouth showers are more effective. The disadvantage is their cost (the device is big so expensive) and they do not guarantee

not a perfect cleaning of the teeth.

  The object of the invention is to provide a toothbrush which does not only clean the tartar and mass the gums; it must also clean and rid bacteria of places that were not affected until then, for example the inner epithelium of the bead

  gingival and / or epithelium of the gingivo-jugal sulcus and

  to have an even more intense and adjustable massage of the gen-

  chives. This object is achieved according to the invention in that the toothbrush can be driven in directions of

  different and / or alternating rotation (left / right).

  The following description, given as an example, is

  refers to the accompanying drawings in which: - Figure 1 shows the principle of a device according to the invention, seen in elevation; - Figure 2 is a partial view of the device, namely a rotating toothbrush with a guide plate curved at the front in the manner of a tongue, which is placed without being fixed on the shaft; - Figure 3 shows different shapes of the rotating toothbrush

  FIG. 4 is a view of the toothbrush

  in which the radial distance to the axis is

2 2486784

  than the length of the individual hairs - FIG. 5 shows an embodiment of a

  rotating toothbrush with a protective cap.

  The rotating toothbrush 1 is formed as a rotating body and is connected by a shaft 2 to an electric motor which is suitably housed in a housing 3; but the electric motor 3 can also be made itself as a housing. On the case is

  provided a switch 4 which is movable appropriately

  in the axial direction to start the appliance

and stop it.

  It is essential to the invention to use a reversible electric motor, because the rotating toothbrush 1 must turn once to the right, once to the left. As

  example: there is a tendency to brush the gen-

  cives towards the teeth. For this reason, the brush must rotate in the opposite direction for the upper jaw

  only for the lower jaw for cleaning.

  In the example shown, we see the cable

  cord 5 to which is attached a plug 6. Here, the

  Electric motor is powered by the network.

  As a source of energy, we can indifferently use

  read a search battery or a primary battery.

  For the rotation to the left, the switch 4 is for example moved to the left, and for the rotation to

  right, to the right; the user therefore has the possibility

  turn the brush 1 in the desired direction as

for as long as he wants.

  But the invention also contemplates that this

  mutation occurs automatically at specified time intervals. Such switching devices are known and need not be explained; they are used, for example, to switch windscreen wipers, etc. The housing may be provided with a guide plate 7 in order to better guide the rotary brush, applied

  for example in the upper jaw. But such a pia

  7 is not required. The housing 3 can be made to form such a guide plate 7, that is to say that such a guide plate 7 can

  protrude from one side or both sides. This plate of mistletoe

  can be adjustable (in height and length). But it can also be tubular or elliptical

  for example, but it is

  glable) until the start of the rotary brush 1.

  The rotating toothbrush shown here can also

  to be carried out differently. Plug socket 6 for

  for example, be attached directly to one end of the housing 3. A flexible shaft (to the shaft plate

  2) goes from the electric motor to the rotating brush

  1. A rotating brush 1 is associated with a handle

  then carries a switch to turn on and off

  if you do not choose automatic switching. In addition, the invention also provides that this switching device is adjustable; that is to say, one can adjust, for example, five or ten, fifteen or twenty turns in one direction and as much in the other, or a

  different number of turns in the other direction.

  The invention also provides for the ability to adjust the

number of engine revolutions.

  Attaching the rotating toothbrush to the toothbrush

  or directly on the motor shaft can be effected by known means, for example by groove and key,

  by means of a ball secured to a spring that

  quest in an associated bore during insertion, etc. The invention provides for conforming the rotary brush 1 to the jaw. We can in this case provide different

  types of brushes on a rotating brush 1 (alternatively

  hard and soft; bristles of different lengths,

  etc.). As a trimming of bristles, it is possible to use

  known, among others the plastic material.

  With the arrangement of the invention, it is also

  possible, when cleaning, to use different rotating brushes 1, for example first a brush to

  hard teeth for rough cleaning; then, a bros-

  is more flexible with which one can then (or conversely)

  massage the gums further, etc. -

  The guide plate 7 (see FIG 2) could, for example also be threaded onto the shaft 2 without being fixed and thus be aligned and held. The shaft can then rotate without interference and drive the rotating brush 1 without the guide plate 7 being rotated, this type of arrangement naturally applies to the cap 8 which will be described below. In Figure 2, provision is made

  on the guide plate 7 a curvature 12 (or an elbow).

  This must prevent that, in the posterior area, the

  skin or the flesh of the cheeks is too strongly attacked.

  Suitably in this area (thus at the end of the rotary brush 1) will be used more flexible bristles (this is part of the invention) to prevent such a disadvantage; or, in accordance with the invention, a plate which is mounted to rotate freely on the axis of the toothbrush is fixed in accordance with the invention, so that it does not rotate at the same time when the applies to the flesh of the cheek. Such a plate, or

  disc, could appropriately present a cour-

convex bure.

  Figure 3 also shows how the

  rotating brush can, for example, be realized. The con-

  formation from the purely cylindrical form through a cross-sectional shape similar to that

from one of the many known sleeves.

  FIG. 4 schematically represents a guide plate 7 or a cap 8 whose distance to the axis of rotation of the brush 1 is less than the length of the

  fur; for this reason, the hairs rely, that is,

  say that they are bent and can at the same time get

  for example, a cleaning effect; this effect can be accentuated if the inner surface is not smooth,

according to the invention.

  FIG. 5 represents the mode of operation

  of the device according to the invention. The protective cap

  8 can surround the rotary brush on all sides.

  tive 1 so as to leave free the area of the bros-

  rotating 1 which attacks the gum 11 or the tooth 9.

  The invention also provides for mounting on the

  in order to freely rotate the guide plate 7

  and the protective cap 8. When keeping the

  tif, it is possible to turn the guide plate and the

  protective cap 8 as appropriate for use.

  If these two elements are for example fixed on the housing 3, the housing 3 is turned into the desired position. In order to avoid injury, the rounded longitudinal edges of the protective cap 8, and the guide plate 7 are rounded, and even rounded and reinforced or folded towards

  the back so as to form a large support surface.

  The invention also provides for associating with the system

  a spraying device in order to bring about

  for example, or a product for rinsing teeth. For this purpose, it is possible to use a flexible hose with a nozzle, which is fixed, for example, on the guide plate 7 or the protective cap 8. A suitable pushbutton releases by its actuation the passage of the liquid. Or we choose a hollow shaft for the rotating toothbrush 1 (which can be introduced for example by the free end of the rotary brush 1). Punctures are made where the bristles are implanted so that the direct wash is done from the inside of the toothbrush

rotating 1.

  The electric motor is calculated in such a way

  that it turns at a low speed of rotation; but

  according to the invention, it is possible to switch it

  on different numbers of turns even during the

  tion (eg 50, 100, 150, 200 rpm).

Claims (31)

  1. - Device for brushing and / or cleaning the teeth and / or the gums, in which the toothbrush is driven by an electric motor, characterized in that the toothbrush (1) can be driven in rotational directions different and / or alternate (left / right).   2. - Device according to claim 1, characterized   in that the switching on the direction of rotation chooses   if (left / right) is performed by a switch (4).   3. - Device according to any one of the   previous cations, in that the switch (4) is placed directly on the housing (3) of the engine electric.   4. - Device according to any one of the   previous indications, characterized in that the switching   (4) can be moved in one direction and the other (for switching purposes) in the axial direction of the housing (3) (eg by moving to the zero position: setting off).   5. - Device according to any one of the   preceding claims, characterized in that the electric motor is associated at least one control device with   known intervals for forward and backward walking   (eg relay assembly with two switching   (for example bipolar); electronic multivibrators   such as bistables with counters (transistors, etc.) in order to switch the electric motor at predetermined time intervals (for example after 20 turns in   one of the senses), so that it turns in the other direction.   6. - Device according to any one of the   prior art, characterized in that the shaft (2)   can be lengthened, for example it can stretch telescope cally.   7. - Device according to any one of the   cations, characterized in that the shaft (2) can be inserted into the shaft of the electric motor (or   in an associated coupling element inserted).   8. - Device according to any one of the   cations, characterized in that associated with the system a guide plate-appropriately adapted to the jaw-which is, for example fixed on the housing   (3) or made in one piece with it.   9. - Device according to claim 8, characterized   in that the housing (3) is partly forming a guide plate (7).   10. - Device according to any one of the   previous indications, characterized in that the electric motor   can be operated by means of a battery, a   Primary battery or network current.   11. - Device according to any one of the   prior art, characterized in that the stacker (3)   is adapted to the shape of the hand that surrounds it.   12. - Device according to any one of the   dications preceding, characterized in that there is provided on the casing (3) a surface for standing, a carnation or the analogue.   13. - Device according to any one of the   previous indications, characterized by a support   standing or hanging) into which can be introduced duit by adjusting the housing (3).   14. - Device according to claim 1, characterized   in that the rotating toothbrush (1) is adapted to the shape of the jaw.   15. - Device according to claim 1, characterized   in that the housing (3) is provided with a   (6) and providing on the rotating toothbrush (1) a separate handle with switch (4) and a shaft (by example a flexible tree).   16. - Device according to any one of the   preceding indications, characterized in that the rotating toothbrush (1) can be threaded (easy release)   on the shaft (2) or on the separate shaft (with connection to the flexible tree).   17. - Device according to any one of the   prior art, characterized in that the rotating toothbrush (1) has a bore with a key and can be introduced into the bore of the shaft (2), or that the separate shaft can be introduced in a controlled manner with the flexible shaft, so that it comprises a groove or the analog for the key (the kinematics can be in reverse order).   18. - Device according to any one of the   previous indications, characterized in that the brush   rotary tooth (1) is formed as a rotating body.   19. - Device according to any one of the   previous indications, characterized in that the engine   electric is realized as a housing.   20. -. Device according to any one of the   previous indications, characterized in that the engine   Electric is an external rotor motor.   21. - Device according to claim 20, characterized   characterized in that the rotor of the motor-external rotor is extended in the manner of a shaft (for example it is a tube), and that the rotary toothbrush (1) made for example   in the form of a sleeve, can be slipped on the extension   similar to a tree moving outwards (or   well, if it is equipped with a drum, it can be introduced duite-in this extension).   22. - Device according to any one of the   prior art, characterized in that it is possible to   the number of revolutions of the electric motor.   23. - Device according to any one of the   in which the control can have several settings for a number of rotations determined.   24. - Device according to claim 1, characterized   tered by a protective cap (8) which surrounds at least   partially the rotating toothbrush (1).   25. - Device according to claim 24, characterized   in that the free (radial) distance between the   inner face of the protective cap (8) and the axis is   lower than the largest length of hair.   26. - Device according to claim 25, characterized   characterized in that the inner surface of the protective cap 9 2486784   (8) (of course the guide plate (7) is rough, is provided with reliefs and recesses, grooves or the analogue.   27. - Device according to any one of the   24 to 26, characterized in that the protective cap (8) is attached to the handle of the rotating toothbrush (1) or to the housing (3), or is threaded freely on the tree (2).   28. - Device according to any one of the   prior art, characterized in that the curvature (12) of the guiding plate (7) to the protective cap (8) is provided on the inside for guiding the rotating toothbrush (1), or a guide bearing in alignment is provided (to avoid mounting in   cantilever of the rotating toothbrush (1).   29. - Device according to claim 1, characterized   in combination with the rotating toothbrush (1),   indirectly or directly, a flexible hose with   appropriate for the free end of a spray nozzle. tion.   30. - Device according to claim 29, characterized   characterized in that the hose is held stationary on the handle, and / or the guide plate (7), or the cap   protector (8), and / or the housing (3), or that it is now   naked so that it can be moved and easily cleared and blocked.   31. - Device according to any one of the   preceding indications, characterized in that it is possible to adjust, for example in a progressive manner, the number of turns of the electric motor.