JPS581409A - Toothbrush apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a rotary toothbrush with oral protection that is rotated in two directions by an electric motor, and at least one mechanical switch and/or at least one gravity switch attached to the electric motor. It relates to a device for brushing teeth (gums) with a switch (inertial switch).

The toothbrush according to U.S. Pat. No. 4,163,300 is a rotating toothbrush with a semi-arcuate mouth guard at the front so that the cheeks are not injured when the brush is rotated. Rotation to the left or right takes place via a tilt-related switching device. This configuration is impractical. This is because the toothbrush user must turn the toothbrush finely and accurately in order to rotate the toothbrush in the correct direction. (Usually from red (gums) to white (teeth)). Therefore, this toothbrush is not suitable for consumers, and its complicated structure makes it impractical to use.

Federal Republic of Germany Application No. 3011534, Publication No. 1287675, Utility Model No. 1797828,
British Patent No. 1406314, US Patent No. 345108
The rotary toothbrushes described in German Patent No. 6, DE 2703401 and US Pat. No. 3,588,936 are similarly impractical.

The object of this invention is to make it possible for the user to use it without much practice, i.e. by simply switching between upward (upper jaw) and downward (lower jaw) directions, the rotating toothbrush will automatically move in the correct direction (from red to white). ) To provide a cheap, light, and easy-to-use rotating toothbrush that rotates in the same direction.

This invention solves the above-mentioned problem by the following switching combination. That is, the electric motors of the upper and lower jaw care reservoirs are manually switched using at least one switch, and the electric motors of the upper and lower jaw care reservoirs are controlled to rotate clockwise and counterclockwise. Switching of the electric motor of the pump is automatically carried out by at least one gravity switch.

According to the above configuration, switching is performed as follows.

1. Manual switching of the sump to face upwards (upper jaw) Automatic switching by gravity switch of the sump for brushing the inside and outside of the teeth of the upper row of teeth a) Right-hand rotation = left outside b) Left-hand rotation C ) Clockwise = rightward d) Counterclockwise = rightward 2, manual switching for downward (lower jaw) automatic switching by gravity switch for polishing the inside and outside of the lower row of teeth a ) Turn left = outside left b) Turn right = go left C) Turn left = go right d) Turn right = outside right In this case, use the manual switch only for cleaning the upper and lower jaws, and use the motor Separate on/off switch for
Alternatively, the upper and lower maintenance switches can also be used as motor on/off switches.

An embodiment will be explained in detail based on the drawings.

FIG. 2 shows diagrammatically the switch casing 11 of a gravity switch. For proper passage, the ball 16 is made of, for example, copper, silver, mercury or the like. Globular descent. At the bottom, it rests on the contact point. These contacts are marked with "+" and "-" to indicate the circuit. When the ball 16 falls onto this contact, the circuit is closed and the electric motor driving the rotary toothbrush 1 (FIG. 1) rotates, for example clockwise. When the motor casing 3 is rotated, for example by 180°, the balls 16 fall onto the contacts. (These contacts go down by a 180° rotation). The motor is then polarized counterclockwise.

Switching of the motor takes place via switch 4 or an additional switch which is simply an on/off switch. The first function of switch 4 is to switch between upper and lower jaws. Therefore, in order for the user to know whether the product is for the upper jaw or the lower jaw,
For example, it is better to use a tumbler switch. If this switch is tilted downward, it means, for example, the lower jaw. If it is tilted upwards, this means the upper jaw. If the device does not change its position during this changeover, the direction of rotation will then change automatically. Other possibilities for these switches are shown in FIGS. 7 and 8. If only the spring-loaded switching pin 23 is pressed, the motor will turn clockwise. When the switching pin 22 is pushed together with the switching pin 23, the rotation is counterclockwise (or the directions are opposite to each other). Whether the rotation is left or right can be confirmed in the same way using the switch shown in FIG. The key with two square circles is conveniently placed in the guide 24. The two switching pins 25,26 are spring loaded. The surface of the switching pin 25 is curved in a concave shape, and when pressed, it means, for example, a counterclockwise turn. The surface of the switching pin 26 is curved in a convex shape, which means clockwise rotation. Other marks can be placed on the pin surface in exactly the same way. Acoustic or optical signals can also be provided. For example, one pin is pushed somewhat into the casing 3. Corresponding contacts are bridged in a known manner.

As shown in FIG. 1, an intermediate piece, 2, is connected where the rotary toothbrush l ends. A connecting portion 28 is formed at this intermediate leg.

For practical use, once connected, the used rotating toothbrush could be replaced. On the other hand, if the intermediate pieces 2 are arranged in a row, another user can use them. If the rotary toothbrush and the intermediate piece are then of the same color, for example - one drive unit per family is sufficient.

The casing 11 stands vertically inside the casing 3. For example, it can be tilted towards about 200-300 casings (where the cable hits).

FIG. 1a shows that in this direction the casing embodying the gravity switch must be vertical. That is, the casing 11 must not be rotated either to the left towards the switch 4 or in the opposite direction. In this figure, the contacts "+" and "-" are contained within the casing 11, so that the bulb 16, which is particularly good in mercury, makes the contacts in this illustrated position.

This positioning ensures a constant direction of rotation, for example from a horizontal position to a vertical position, even after the device has been tilted. This is guaranteed by pulse relays in some cases.

FIG. 1 still shows the plug 6, the cable 5, and the guide plate 7 (for protection). The guide plate 7 is shown schematically.

It is best to have this guide plate stick out to the left, especially in order to fully expose the toothbrush.

FIG. 2 shows the long form of the contact body, the falling body 15.

The free end has rounded corners. The switch casing 11 has a ball 16 (for example, mercury) or a falling object 15 in place of the ball.
It is constructed so that it can be moved freely. Each contact body is guided into the switch casing 11.

The bonded contact petri dish is insulated with wire or the like.

The function of the mechanical gravity switch shown in FIG. 3 is also equivalent. The petri dish or bearing 7 has a joint 12. This bearing 7
is open in the direction of the connecting rod 13. This connecting rod 13 has a contact body 14 . The contact body 14 falls downwards in the position shown and closes, for example, a counterclockwise circuit of an electric motor. Due to the rotation of the device, the falling object 14 is caused by, for example, the entire device being 180
Once it turns, it will fall to the contact position on the opposite side (shown at the top of Figure 3).

The Petri dish 7 is a schematically illustrated wall 11 of the casing 11.
It is attached to a.

Another contact body 10 is shown in Figure 4. The guide 9 may be a roll or a U-shaped rail, the contact surfaces being shown as leaf contacts (for example spring plates).

Another embodiment of the gravity switch that performs multi-speed switching is shown in the fifth example.
As shown in the figure. At the rdJ position, the motor reaches its maximum rotation speed.

At rcJ, the rotational speed is reduced by, for example, 50%. The bottom two positions "C" and "d" indicate clockwise rotation. "a", "b"
” is a counterclockwise turn, and at that time the gravity switch is set to 1, for example.
Must be rotated 80 degrees.

After rotation, for example, the ball 16 falls from raJ to rcJ.

That is, the number of rotations is half. By further knocking down ball 1
6 leaves rcJ and falls to "d". After spinning, the ball falls by the same amount in the opposite direction.

The guide 18 is insulated and configured to ensure that the ball 16 always slides into the correct position. The entire device can be surrounded by an insulated casing 17.

Another switch according to this aspect of the invention is housed in the casing 3 of the electric motor, as shown in FIG. For example, the guide 21 is cast in the pan. The respective contact positions or surfaces are again designated r+J, r-J. In each intermediate space, the corresponding rotation or tilting of the casing 3 causes the ball 19 to fall and close the clockwise circuit.

In the opposite position the counterclockwise circuit is closed. This gravity switch requires a casing 3 to change the direction of rotation.
There is an advantage that it is only necessary to tilt the angle to a minimum (for example, 5 to 1500). If the guide 21 is long, the angular position must also be increased accordingly during tilting.

All known equivalent switches can be used in this invention.

For example, regarding Figure 2 or Figure 4, the ball 16 (
2), the contact body 10 (FIG. 4) can act on easily sensitive switches (for example sensors) by means of very small pressures. The switch can be arranged, for example, in the center of the switch casing. This switch causes the changeover between clockwise and counterclockwise rotation as described above.

In this way, an inertial switch with a known operating mode can be used, so that the rotational movement causes the contact body to work as described in detail above.

Additionally, gravity or inertial control systems can be used. Additionally, switches can be provided to control the left and right turns, electronically programmed by the moment of gravity, moment of inertia, or controlled via a microprocessor.

All known switches, even liquid switches, can be used in place of the switches described above.

Furthermore, it also belongs to the invention to provide an inclined surface 31 that slopes in the direction of the intermediate piece 2 and to arrange the switch 4 on this surface. This gives the operator sufficient sense and memory to know that the lower position means, for example, left rotation or lower jaw, and the upper position means, for example, right rotation or upper jaw.

To clarify once again, the switching of the electric motor for upper and lower jaw care is done manually by switch 4. If you switch from the upper jaw to the lower jaw and keep the device in the same position (not tilted or rotated), the direction of rotation will change at the same time, for example by switching from the upper jaw to the lower jaw.

That is, the rotation direction is changed by the gravity switch only when the position of the device is rotated, for example, by 180°.

[Brief explanation of drawings]

FIG. 1 is a side view of the device of the present invention, FIG. 1a is a longitudinal sectional view of a portion, and FIGS. 2 to 6 show a possible gravity switch and the principle of structure for attaching it to the device of the present invention.
7 is a schematic diagram of a manual switch for right and left rotation; FIG. 8 is a diagram of another embodiment of the manual switch; FIG. 9 shows the arrangement of FIG. is in the direction of the motor and in the direction of the rotating toothbrush. In the figure, reference numeral 1... Rotating toothbrush, 2, 2a... Intermediate piece, 3...
・Casing, 4...Switch. FIG.1

Claims (1)

[Scope of Claims] 1) A rotating toothbrush with an oral protector rotatable in two directions by an electric motor, and at least one mechanical switch associated with the electric motor and/or In a toothbrush device having at least one gravity switch, the electric motor is manually switched by at least one switch (4) for cleaning the top and bottom brushes, and the electric motor is manually switched by the at least one switch (4) for cleaning the inside and outside of the teeth. A device characterized by a switching combination for automatically switching the electric motor between clockwise and counterclockwise rotation for servicing by means of at least one gravity switch. 2) The switch (4) has a tactile member so that its position can be determined by touch, and may be a tumbler switch, for example, which is combined with different irregularities depending on the inclined position of, for example, a three-point switch with respect to the longitudinal axis of a toothbrush. The device according to claim 1), wherein there are two different keys, and the key may have a different cross-sectional shape, a cross-sectional shape, a shape of unevenness, etc. 3) Two known mercury switches as gravity switches,
Device according to claim 1) or 2), comprising a liquid switch, one mercury switch plus a pulse relay. 4) The device according to any one of claims 1) to 3), wherein the casing (11, 17) of the gravity switch is provided vertically or vertically inside the casing (3) of the electric motor. . 5 5) The device according to any one of claims 1) to 4), wherein the casing ('11.17) is provided offset by about 900 with respect to the switch (4). 6) The use of an intermediate piece between the rotary toothbrush and the electric motor, wherein the intermediate piece (a2a) is removably connectable (for example insertable, etc.) to the immediate end of the rotary toothbrush (1). The device according to any one of ranges 1) to 5). 7) Device according to any one of claims 1) to 6), wherein the intermediate piece (2, 2a) is removably connectable (for example insertable, etc.) directly to the shaft end of the electric motor. 8) Friction-like transmission of rotation from the electric motor to the respective connected position (connection 28, 29) takes place via the end teeth, and the retention is achieved, for example by means of a clamping action, when the motors are inserted into each other. Claim 6) or 7)
The device described. 9) Place the gravity switch inside the casing (3) so that switching does not occur when the casing (3) is oriented horizontally or up to 900 degrees (at which time the rotating toothbrush (1) is vertical). The device according to any one of claims 1) to 9). 10) Claims 1) to 9, wherein the gravity switch is disposed within the casing (3) so that switching does not occur when the casing (3) is rotating solo from 0 to 1600 revolutions. ). 11) Claims 1) to 10 are provided with a known rotation speed regulator (for example, a resistor, etc.) attached to the electric motor.
). 12) A rotary toothbrush (1) and an intermediate piece (
The device according to any one of claims 1) to 11), wherein the toothbrush and the intermediate piece are arranged in pairs and colored in the same color. 13) A certain visual and/or acoustic indication is attached to each direction of rotation of the electric motor, Claims 1) to 13)
12). 14) Claim 1) wherein the gravity switch comprises a circuit breaker, a rotation direction changeover switch and a gravity switch assembled in one piece in the casing (3) of the electric motor.
The device according to any one of -13). 15) Claim '1' in which the gravity switch is replaceable
) to 14). 16) The device according to any one of claims 1) to 15), wherein the contact surface is configured as a recess. 17) The contact surface is a magnet, and the contact body (10, 14, 1
Claim 1) wherein 6, 19) is made of a ferromagnetic material.
The device according to any one of -16). 18) A patent in which, upon rotation, an axial movement in at least one direction is carried out by rotation via a worm gear, a cam plate, a threaded piece, using a return spring in the starting position. The device according to claim 1). 19) The device according to any one of claims 1) to 18), wherein the gravity switch has a structure similar to a pendulum. 20) The device according to any one of claims 1) to 19), wherein a part of the casing (3) is configured as a guide plate (7). 21) According to claims 1) to 20), a guide plate adapted to the shape of the jaw is provided, and the guide plate is fixed to the casing (3) or is made integral with the casing. The device according to any one of -. 22) The device according to any one of claims 1) to 21), wherein the speed is changed in several stages in accordance with each direction of rotation of the electric motor. 23) The left-handed circuit and the right-handed circuit of the electric motor are connected by the switch casing (11) to which the two circuits are connected, and one contact body (10) is connected by tilting and/or rotating the casing (11). ,14,16,19
) always closes one of the two circuits.
) to 22). 24) The device according to claim 1), having an opening/closing member configured as an on/off switch for an electric motor and also as a gravity switch. 25) The gravity switch casing (11, 17) is about 2
The device according to claims 1) to 24), wherein the device is inclined by 0 to 30° in the direction of the casing end. 26) The guide surface of the switch (4) is on a surface (31) inclined in the direction of the intermediate piece (2).
25).