JP2010220999A - Electric toothbrush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lightweight, compact, inexpensive, and silent electric toothbrush which improves a periodontal cleaning effect and a massaging effect and is effective against a periodontal disease and periodontal odor. <P>SOLUTION: When driving of a magnet motor by a dry-cell battery is adopted for attaining the lightweight, inexpensive, and compact electric toothbrush, it is the most advantageous means to convert the eccentric movement of a bundle of bristles into a reciprocative and rotary movement at the tip ends of the bristles. The problem of adjustment in strength is easily solved by an interchangeable brush where dimension ratio of a planting bundle to a planting base is changed. The ends of the bristles are protected by the extension/contraction of the whole dimension. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electric toothbrush by a reciprocating motion of a bristle bundle in a long direction.

  A typical electric toothbrush that cleans the periodontium by reciprocating the bristles in the vertical direction is a method that converts the rotation of the motor into the vertical direction using gears. (See Patent Document 1) and the rotation of a motor is converted into a reciprocating motion in the vertical direction by a flocking table and bristles mounted at right angles, with the deflection of the tip portion based on the principle of an eccentric ball and an insulator. (See Patent Document 2)

Japanese Patent No. 3875745 Registered design number 1255188

  The electric toothbrush described above is only reciprocated in the longitudinal direction of the bristle bundle and not accompanied by the rotational movement of the bristle bundle, so that the cleaning part in the periodontal and periodontal pockets is limited to only the longitudinal contact of the bristles of the bristle bundle. Therefore, there was a limit to the cleaning and massage effect.

Moreover, in the electric toothbrush described above, there was no choice but to set a certain strength, weakness, and so on with an electric circuit or the like even if it was adapted from the weakest necessary for severe periodontal disease patients to the strongest for healthy people. .
Therefore, there are people with healthy teeth that do not need to be used at all, such as “weak”, and patients with mild periodontal disease. Although some patients were ill, trying to design something that fits all of them made them unnecessarily complicated, expensive and bulky, and had a high failure rate.

  As described later, in addition to the above-described reciprocating motion of the bristle bundle in the long direction, if the structure is added with rotational motion, the bristle bundle is bent within a right angle to the guide nozzle tip when left standing for a certain period of time. Keeping the angle, it has a curved bend, especially using thick monofilaments of bristle bundles, adopting a magnet motor as the prime mover, and direct drive, the starting force is weak, so the non-rechargeable power supply In some cases, the battery may be exhausted and may not be able to rotate unless the specified voltage is reached.

  The electric toothbrush also wanted to have a structure with two bent parts, including the parts that hit both ends of the mouth, to make it easy to reach all the parts of the periodon on the back side of the first molar, like dental tweezers. .

  In the above-described toothbrush, the tip of the bristle protruding from the tip of the guide nozzle is often bent or soiled during storage.

    However, when the fourth structure with reciprocating motion and rotational motion is used, it is effective for normal periodontal cleaning, but it is equipped with complex structures and brackets for orthodontic treatment. Simple periodical reciprocation is more advantageous for cleaning the periodontal period

  When a flywheel directly connected to the motor is used as a means to achieve the fourth object, the entire bristles bundle whose eccentric direction is the same as the rotation axis center line on the concentric circle of the rotation axis center line of the motor motor is eccentrically rotated. For this purpose, a cylindrical flocking table shaft in which a bristle bundle is planted is inserted into a cylinder provided at a position eccentric from the center of the flywheel. A bristle bundle that extends in the direction of the rotation axis at a certain length from the flocking table is set so that it can rotate on the central axis of the motor inside, and the linear pore part that allows the bristles to reciprocate at the end The bristles that rotate in a concentric circle in the guide nozzle protrude from the tip of the guide nozzle by rotating the linear pore in the guide nozzle bent within a right angle from the axial direction of the guide nozzle. The tip of the bristles is converted into a reciprocating motion. At that time, when the rotation starts, the floating governor of the balancer tightens and fixes the columnar flock base shaft in the cylinder by centrifugal force, and the rotational movement starts at the tip of the bristle bundle along with the reciprocating movement. However, in order to cope with periodontal cleaning with the orthodontic structure 9 attached, the bristles are only reciprocated by freely rotating the cylindrical flocking shaft only in the balancer function. I can.

    By adopting this floating governor system, the weakness of the starting force of the sixth direct drive and the starting force problem due to insufficient power supply voltage can be solved.

  As described above, the flock is fixed to the flywheel directly connected to the motor, and the flock is fixed in a fixed angle and rotated in the guide nozzle, so that the tip of the bristle bundle protruding from the tip of the guide nozzle is reciprocated with rotation. Do exercise. In this case, it is used only for normal periodontal cleaning except for the condition during the ninth treatment.

  The point that the rotation of the rotating shaft of the prime mover motor is used as means for achieving the fourth object is the same as that of the tenth embodiment, but this method uses a pinion gear fitted to the rotating shaft of the prime mover motor in the direction of the rotational axis of the prime mover motor. Combine the inner gear and flywheel installed so as to rotate at different angles, change the rotation axis direction of the motor of the motor at the same time as decelerating, and end the flocking table at the eccentric position of the flywheel that rotates with the inner gear Is fixed through a universal joint, and the bristles are reciprocated by rotating an inclined flywheel in a guide nozzle in which the bristles and flock are placed at a certain angle from the rotational axis of the flywheel. It is possible to add a rotational motion to the shape of dental tweezers.

  In order to achieve the ninth and seventh objects, a spherical holding cylinder is provided in which a spherical body passes through an eccentric part of a flywheel directly connected at a certain angle by a coil spring flexible joint and a part of the spherical body is exposed at the terminal, By rotating the flywheel inclined in the guide nozzle installed at a certain angle from the rotation axis direction of the flywheel by passing the bristle bundle having a sphere at the terminal and the flocking table through the sphere holding cylinder The bristles can be reciprocated in the shape of dental tweezers.

  In order to achieve the fourth object, in addition to the combination of a pinion gear and a gear with a cam on the rotating shaft of the motor motor that performs only the reciprocating motion, which is often found in conventional electric toothbrushes, the reciprocating distance of the reciprocating motion shaft is opposite to the pinion gear. A flat gear with a movable length is installed, and the shaft connected to the flocking table that has been fixed to the cam and reciprocating the bristle bundle is attached to the flocking table so that it can be rotated. A planar gear having a length capable of reciprocating movement is fixedly penetrated to make a rotatable connection to the cam. Thereby, rotation can be added to the conventional reciprocating motion.

  When the linear reciprocating system having a rotatable rotor as a power source is used to add rotation to the reciprocating motion to achieve the fourth object, protrusions corresponding to male screws are provided on both outer surfaces of the reciprocating shaft, A reciprocating motion of the bristle bundle fixed to the reciprocating shaft can be added to the reciprocating motion of the bristle bundle fixed to the reciprocating shaft by reciprocating the internal thread with a large pitch on the inner surface of the cylinder.

  The problem of strength when using the fifth toothbrush can be finely adjusted by changing the ratio of the length of the flocked table to the total length from the flocked table to the bristles of the bristle bundle. This type of electric toothbrush originally has the characteristic that the impact force of the bristle tip is absorbed by the bending of the bristle bundle in the guide nozzle, but the effect is particularly effective in the tenth and twelfth methods. It is remarkable.

  As mentioned above, it is possible to respond to any request by changing the ratio of the bristle bundle of the brush for replacement and the length of the flocking table, so that it is extremely deteriorated for patients with end-stage periodontal disease Products can be easily provided, and even for patients with severe periodontal disease who started from the weakest at the beginning, as the symptoms improved and the gums tightened, a replacement brush with a strength that meets the requirements of that level each time Can be replaced

  By changing the rotational axis direction of the prime mover motor as in the thirteenth and fourteenth aspects, the shape of dental tweezers having two bent portions can be obtained.

  In order to solve the problem of protecting the ends of the bristle bundles protruding from the seventh guide nozzle terminal, the guide nozzle is provided with an expansion / contraction function, and is solved by extending the entire length of the guide nozzle during storage.

  In the electric toothbrush of the present invention, the distal end portion of the bristle bundle performs the reciprocating motion and the rotational motion simultaneously, so that the effect of removing plaque in the periodontal and periodontal pockets is enhanced, and at the same time, the effect of gum massage is enhanced. In addition, since the eating bowl is cleaned at once, the decaying odor generated from the periodontium disappears in an instant.

  Since the bending of the bristle bundle acts as a shock absorber in the guide nozzle, there is no delay in absorbing the impact force due to inertia, and a flexible stimulation effect is obtained.

  You can choose your strength preference with a variety of replacement brushes.

  In addition, in the case of the direct connection type as in the tenth and twelfth, there is no joint part, so very high silence can be obtained.

  Partially omitted projection sectional view showing the tenth embodiment and sectional view showing the twenty-second embodiment   Partially omitted vertical sectional view showing the twelfth embodiment and the eighth embodiment   Partially omitted projection view showing thirteenth embodiment   Partially omitted sectional view showing the fourteenth embodiment   Partially omitted sectional view showing the fifteenth embodiment   Partially omitted sectional view showing the sixteenth embodiment

  Hereinafter, the embodiment of the present invention is shown in FIGS. 1, 2, 3 and 4 in which a rotating power source is converted into a reciprocating motion and a rotating motion of a bristle bundle, and FIGS. 5 and 6 are reciprocating. It is a power source with rotational motion.

FIG. 1 shows a cylindrical flocking table shaft 5 and a bristle bundle 6 inserted into a cylinder 4 provided on a flywheel 3 directly connected to a rotating shaft 2 of a prime mover motor 1, and a rotating shaft 2 of the prime mover motor 1 in a guide nozzle 7. As soon as the circumference in the center line direction is rotated, the floating governor 20 of the balancer is fastened by the centrifugal force to fasten the cylindrical flocking table shaft 5 rotating in the cylinder 4 to be fixed to the flywheel 3 and within the right angle of the guide nozzle 7. The distal end portion 9 of the bristle bundle that is bent in a straight line and protrudes from the straight tubular portion 8 is converted into a reciprocating motion with rotation.
25 shows an eighth problem, an expansion / contraction mechanism for protecting the bristle bundle 9 at the time of storage, and 26 shows a replacement brush replacement part.

FIG. 2 shows that within the right angle of the guide nozzle 7 when the flock 10 is fixed to the flywheel 3 directly connected to the motor 1 and rotated in the guide nozzle 7 at a fixed angle with respect to the direction of the rotation axis 2. The distal end portion 9 of the bristle bundle protruding from the straight tubular portion 8 bent in a straight line is converted into a reciprocating motion with rotation.
FIG. 25 shows the eighth problem as in FIG. 1 and the expansion and contraction state for protecting the bristle bundle during storage.

  FIG. 3 shows that a bunch of bristles 6 and a flocking table 10 are connected to an eccentric part 13 of a flywheel 3 that rotates together with an inner gear 12 in which a pinion gear 11 fitted to a rotary shaft 2 of a prime mover motor 1 is kept at a certain inclination. When the flywheel 3 inclined in the guide nozzle 7 in which the bristle bundle 6 is installed in front of the rotation axis center line of the motor 1 is rotated, the tip 9 of the bristle bundle rotates as it is. Performs reciprocating motion.

FIG. 4 shows a rotation of a central shaft 31 of a flywheel 3 having a spherical holding cylinder 30 connected to a rotating shaft 2 of a prime mover motor 1 via a coil spring flexible joint 29 having a fixed angle. The bristle bundle 6 having the sphere 32 fitted to the sphere holding cylinder 30 at the end of the guide nozzle 7 installed at a certain angle from the rotation center line of the flywheel 3 is reciprocated in the longitudinal direction without rotation. I do.
FIG. 5 shows a length in which the reciprocating distance of the reciprocating motion shaft 15 can be moved to the opposite side of the pinion gear 11 in addition to the combination method of the pinion gear 11 and the cam gear 14 on the rotating shaft 2 of the prime mover motor 1 which has been conventionally only reciprocating motion. The gear 16 is fixed to the reciprocating motion shaft 15 on which the bearing 17 is installed, and the flocked bundle 6 and the flocking table 10 are fixed to the end thereof, thereby rotating the reciprocating motion.

  FIG. 5 shows a reciprocating shaft 21 provided with a screw groove 20 having a large pitch corresponding to a male screw on the outer surface, which is fixedly connected to a rotor 19 that can rotate and linearly reciprocate. By reciprocating in the threaded cylinder 23, rotation can be applied to the reciprocating motion of the bristle bundle 6 connected to the flocking table 10 fixed to the reciprocating shaft 21. Of course, conversely, the reciprocating shaft 21 may be provided with a protruding portion 22 corresponding to a male screw, and a thread groove 20 having a large pitch corresponding to a female screw may be provided in a threaded cylinder 23.

DESCRIPTION OF SYMBOLS 1 Motor | power_motor 2 Rotating shaft 3 Flywheel 4 Cylinder 5 Cylindrical flocking table shaft 6 Bristle bundle 7 Guide nozzle 8 Straight tubular part 9 Bristle tip part 10 Flocking table 11 Pinion gear 12 Inner gear 13 Universal joint 14 Gear 15 with cam 15 Reciprocating Axis of motion 16 Reciprocating gear 17 Bearing 18 Eccentric reciprocating side wall 19 Rotor 20 Screw groove 21 Reciprocating shaft 22 Protruding part 23 Threaded cylinder 24 Eccentric cam 25 Telescopic mechanism 26 Replacement brush replacement part 27 Bending 28 Periodic pocket 29 Coil spring bending Joint 30 Sphere holding cylinder 31 Center shaft 32 Sphere

Claims (9)

  The electric toothbrush in which the bristles of the bristle bundle perform the reciprocating motion of the bristle bundle in the longitudinal direction and at the same time the rotational movement.   An electric toothbrush that reciprocates or simply reciprocates while the bristles protruding from the tip of the shape having bent portions at two locations as in dental tweezers.   An electric toothbrush that can freely add a rotational motion to a reciprocating motion depending on whether the bristle bundle and the flocking table are fixed to the eccentric part of the flywheel or made rotatable.   Insert a cylindrical shaft into which a bunch of bristle bundled in the direction of the rotation axis is inserted into a cylinder that is directly connected to the rotation axis of the motor and is located at the eccentric position. An electric toothbrush that has a fixed mass at a position opposite to the center of the toothbrush, tightens the cylindrical shaft with centrifugal force, and rotates it by adhering to the cylinder and rotating the reciprocating motion at the protruding part of the bristle bundle.   The electric toothbrush which made it possible to adjust the strength of the bristle tip by changing the ratio of the length of the flock to the flock in the entire length from the mounting part of the flocking table rotating eccentrically to the tip of the flock.   The bristles are fixed to the eccentric position of the rotating flywheel via a universal joint, and the bristles are rotated by rotating the flocked bunch and the flocking table in a guide nozzle installed at different angles from the rotation axis of the flywheel. Electric toothbrush that converts to reciprocating motion and rotational motion.   Insert the sphere of the end of the flocking table into the eccentric position of the rotating flywheel and rotate the bristles bundle in a reciprocating motion by rotating the flocking bundle and the flocking table within the guide nozzle installed at different angles from the rotation axis of the flywheel. Electric toothbrush to convert.   An electric toothbrush that revolves at the same time as a reciprocating movement of a shaft that reciprocates and a flock of bones that have a large pitch on the sliding surface of a cylinder that reciprocates the shaft inside and a female screw fixed to the shaft.   An electric toothbrush with a mechanism that protects the ends of bristle by expanding and contracting the entire length.

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