KR970009249B1 - Electric-powered brush - Google Patents

Abstract

An electromotive toothbrush provides different movement of a power transmission shaft along rotation direction of a motor and stable movement to the power transmission shaft using a two-stage cam, and reduces power loss. If a panel gear(22) rotates, a lug(234) of a two-stage circular cam(23) adjoins a spiral groove(222) of the panel gear(22) and the two-stage circular cam(23) rotates linked with the panel gear(22). At this time, a rotary shaft(221) of the panel gear(22), which is inserted into a hole(233) of the two-stage circular cam(23), becomes coincident with a central point (f) of a lower cam(232). Under the circumstances, if the two-stage circular cam(23) rotates around the rotary shaft(221), a rectangular cam(241) of a two-stage cam(24) shifts rotary force of an upper cam(231) to horizontal movement. Since the lower cam(232) rotates around the central point (f), it does not vibrate the two-stage cam(24) up and down so as to give stable movement of the two-stage cam(24).

Description

Electric toothbrush

1 is a block diagram of a conventional electric toothbrush.

2 is a configuration diagram of a conventional power transmission system, (a) is a front view, (b) is a side view

3 is a circuit diagram of a conventional switch unit.

4 is a configuration diagram of the electric toothbrush according to the present invention, (a) is a front view, (b) is a side view, (c) is a rear view.

5 is a detailed view of a flat plate gear according to the present invention.

6 is a detailed view of the two-stage circular cam according to the present invention.

7 is a detailed view of the two-stage cam according to the invention driven.

8 is a circuit diagram of a switch booth according to the present invention.

9 is an assembly diagram of the wrinkle switch unit according to the present invention.

10 is an exploded view of the push switch unit according to the present invention.

11 is an operation flowchart of power transmission according to the present invention.

* Explanation of symbols for main parts of the drawings

10: rechargeable battery 20: power transmission unit

21: Motor 22: Flat Gear

23: two-stage circular cam 24: two-stage cam

25: power transmission shaft 30: switch unit

31: push switch section 32: rotor switch section

The present invention relates to an electric toothbrush for automatically brushing by using the rotational force of the motor, and more particularly, to an electric toothbrush that can be modified in the structure of the power transmission portion and the switch portion to perform various types of brushing.

The powered toothbrush of the type includes a rechargeable battery 1, a motor 2 driven by the rechargeable battery 1, a power train 3 driven by the motor 2, and the power train. A power transmission shaft 4 which repeats the reciprocating motion in the vertical direction by (3) and a switch section 5 for supplying the power of the rechargeable battery 1 to the motor 2.

As shown in FIG. 2, the power transmission system 3 is formed around the rotating shaft of the flat plate gear 6 and the flat plate gear 6, which are engaged with the insertion gear 2 'of the motor 2 and rotate. As the eccentric cam 7 rotates in association with the flat plate gear 6 and the eccentric cam 7 rotates, the linear motion in the vertical direction is repeated and the cam linking unit 8 integrated with the power transmission shaft 4 is integrated. It consists of.

As shown in FIG. 3, the switch unit 5 is inserted between the rechargeable battery 1 and the muter 2 so that the series power of the rechargeable battery 1 can be supplied to the motor 2 and shut off. Perform the off function.

The conventional electric toothbrush configured as described above operates as follows. When the user operates the switch unit 5, the motor 2 is driven, the flat gear 6 rotates in a predetermined direction, and the eccentric cam 7 rotates in the constant direction in conjunction with the flat gear 6. do. The cam interlocking portion 8 repeats the linear movement in the vertical direction as the eccentric cam 7 rotates, and its slow power is transmitted to the power transmission shaft 4.

However, the above-mentioned conventional electric toothbrush has only one rotational direction, and the movement trajectory of the power transmission shaft is simple, and the straight motion of the cam-unlocking part due to the rotation of the eccentric cam is unstable, thus preventing the clean and effective brushing.

Therefore, the present invention has been made to solve the problem of live technology, the movement trajectory of the power transmission shaft is changed along the rotational direction of the motor, and the power transmission shaft gives stability to the movement using a two-stage cam The object is to provide a powered toothbrush with reduced power loss.

In the electric toothbrush of the present invention for achieving the above-mentioned traces, a gripper motor having a built-in rechargeable battery motor includes a power transmission unit for converting the rotational force of the motor into linear reciprocating motion and circular locus motion and a switch part for adjusting the rotational direction of the motor. And a toothbrush inserted into the front surface of the toothbrush, the power transmission unit and the motor comprising a switch unit which controls the rotational direction, and a toothbrushbo inserted into the front side and driven by a drive of the power transmission unit to move the tooth in a predetermined direction to brush teeth. In the above, the power transmission unit and the motor is rotated by receiving the power and the upper and lower cams having the same size as the circumference of the flat gear and the circumferential rotation is integrated while overlapping each other to include the center point of each other, A rectangular hole including two center points is formed in the part to rotate the plate gear in the lifejacket. The shaft is inserted, consists of a two-stage circular cam including a projection moving along the groove of the plate gear at the lower edge of the lower cam and two rectangular cams perpendicular to each other and the upper cam and the two rectangular cams; Characterized in that it consists of a two-stage cam is inserted into the lower cam and the power transmission shaft for transmitting the movement trajectory of the two-stage cam.

In addition, the electric toothbrush according to the present invention has a battery and a gripping portion from the motor and the power transmission unit for circulating the rotational force of the motor in a linear reciprocating motion and a circular motion and a switch part and the front to adjust the rotation direction of the motor An electric toothbrush comprising a head portion to which a toothbrush is inserted and which moves a tooth in a predetermined direction by driving the power transmission portion to brush teeth, wherein the long term switch portion determines the rotation direction from the dynamometer. It is characterized by consisting of a push switch unit for switching in reverse and a rotor switch unit for adjusting the rotational force of the motor.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 4, the electric toothbrush according to the present invention has a gripper having the battery 10 and the motor 21 therein and a power for converting the rotational force of the motor 21 into linear reciprocating motion and circular motion. Brush portion is inserted into the switch unit 30 and the front to adjust the rotational direction of the transmission unit 20 and the motor 21, and brushing teeth in a predetermined direction by the pacing of the power transmission unit 20. It consists of a head part (not shown).

The power transmission unit 20 is a two-stage circular cam 23 and the two-stage circular cam rotated in conjunction with the flat plate gear 22 and the flat plate gear 22 that rotates by receiving the power of the motor 21. When the rotation of the 23 rotates, the power that transmits the kinematic motion of the two-stage cam 24 and the two-stage cam 24 to the head portion reciprocates in the horizontal direction or vertically or simultaneously performs the horizontal reciprocating motion and the vertical reciprocating motion. It consists of the transmission shaft 25.

The switch unit 30 is composed of a push switch unit 31 for switching the rotation direction of the motor 21 in the forward and reverse directions, and a motor switch unit 32 for adjusting the rotational force of the motor 21.

As shown in FIG. 5, the flat plate gear 22 is a spiral formed around the rotating shaft 221 and the rotating shaft 221 which are centered when the plate gear 22 is rotated by being engaged with the insertion gear 21 'of the motor 21. Hum (ⓐ, ⓑ, ⓒ, ⓓ, ⓔ) (222).

The two-stage circular cam 23 is integrated while being turned on each other such that the upper cam 231 and the lower cam 232 having the same size of beans as the center size (ⓕ, ⓖ) of each other, as shown in FIG. A rectangular hole 233 including two center points (ⓕ, ⓖ) is formed in the overlapped portion so that the rotating shaft 221 is inserted into the plate gear 22 in the hole 233, and the lower cam 232 The lower edge includes a projection 234 that moves along the helical flaw 222 of the plate gear 22. The circumferential size of the upper cam 231 gradually decreases as it descends.

The flat plate gear 22 includes a protrusion 234 that moves along the helical groove 222 on the rotation shaft 221. The upper cam 231 gradually decreases as the circumferential size decreases.

In the flat plate gear 22, the helical groove 222 is a distance from the rotating shaft 221, the flat plate gear is inserted into the hole 233 in the projection 234 in the two-stage circular cam 23. It is the same as the distance to the rotating shaft 221 of (22).

The two-stage cam 24 is composed of two rectangular cams 241 and 242 perpendicular to each other as shown in FIG. 7, and the upper cam 231 and the lower cam 232 to the two rectangular cams 241 and 242. Are inserted respectively.

As shown in FIG. 8, the arc diagram of the clutch unit 30 includes a first connector 311 connected to the first terminal of the rechargeable battery 10 and a first resistor connected to the second terminal of the power supply and the first terminal. A second connector 312 and a third connector 313 and a first battery of the rechargeable battery 10 connected in series to (r1), the first resistor R1, and the second terminal of the first resistor R1. A fourth connector 314 connected to a terminal 돠 a second resistor connected to a fifth terminal 321 connected to the second terminal of the first resistor R1 and a second terminal of the rechargeable battery 10 R2) and the sixth concentrator 322 and the seventh connector 323 and the motor 21 connected to the second terminal of the rechargeable battery 10 and the first and second connectors 311 and 312 or the motor 21. ) And drivers 211 and 212 connecting the third and fourth connectors 313 and 314.

The push switch 31 of the switch unit 30 is as shown in FIGS. 9 and 10. The first pressing part 315 connects the drivers 211 and 212 of the motor 21 to the first connector 311 and the second connector 312, and the second pressing part 316 drives the motor 21. The ruler 211, 212 and the connector (311, 312, 313, 314) is not connected.

The electric toothbrush according to this command, which was established as described above, is dynamic as the following light. First, by operating the rotor switch unit 32 of the electric toothbrush to turn on / off the fifth connector 321, the sixth connector 322, and the seventh connector 323, the amount of current transferred to the motor 21 is controlled. I broke it. After the rotor switch 32 is made dynamic, and the first pusher 315 of the push switch 31 is pressed, the drivers 211 and 212 of the motor 21 are connected to the first connector 311 and the second connector. 312 is connected to the power source of the rechargeable battery 10, the drivers 211 and 212 of the motor 21 is connected to the first connector 311 and the second connector 312 so that the power source of the rechargeable battery 10 is Is applied to (21). In this case, it is assumed that the motor 21 rotates in the forward direction and the plate gear 22 rotates in the counterclockwise direction.

When the plate gear 22 rotates in a counterclockwise direction, the protrusion 234 of the two-stage circular cam 23 abuts against the helical flaw 222 ⓔ of the flat plate gear 22 and the two-stage circular cam 23. ) Rotates counterclockwise in conjunction with the plate gear 22. At this time, the rotating shaft 221 of the flat plate gear 22 inserted into the hole 233 of the two-stage circular cam 23 coincides with the center point ⓕ of the lower cam 232.

In the above state, when the two-stage circular cam 23 rotates about the rotation shaft 221, the rectangular cam 241 of the two-stage cam 24 converts the rotational force of the upper cam 231 into horizontal motion. Let's do it. The hibu cam 232 does not vibrate the two-stage cam 24 because it rotates around a center point ⓕ, but the two-stage cam 24 does not vibrate up and down to the movement of the two-stage cam 24. It gives a sense of stability.

The horizontal reciprocating motion of the two-stage cam 24 is converted into a rolling motion and transmitted to the power transmission shaft 25, so that the power transmission shaft 25 vibrates by a rolling feed brushing method.

Thereafter, when the second pusher 316 of the push switch unit 31 is pressed, the drivers 211 and 212 of the motor 21 are connected to the third connector 313 and the fourth connector 314 so that the power source is supplied to the motor ( 21). At this time, the motor 21 is abducted in the reverse direction, and the plate gear 22 of the dynamometer 20 rotates clockwise.

When the plate gear 22 rotates in the clockwise direction, the protrusion 234 of the two-stage circular cam 23 abuts against the spiral groove 222 ⓐ of the flat plate gear 22 and the two-stage circular cam 23. Rotates in a clockwise direction in conjunction with the flat plate gear 22. At this time, the rotation shaft 221 of the flat plate gear 22 inserted into the hole 233 of the two-stage circular cam 23 is coincident with the center point (ⓖ) of the upper cam 231.

In the same state, when the two-stage circular cam 23 rotates about the rotation shaft 221, the rectangular cam 242 of the two-stage cam 24 converts the rotational force of the lower cam 232 into water droplet motion. Let's do it. The upper cam 231 does not rotate the two-stage cam 24 at the time of rotation about the center point (ⓖ), but does not cause the two-stage cam 24 to oscillate from side to side and thus the movement of the two-stage cam 24. Gives a sense of stability to. The movement trajectory of the two-stage cam 24 is transmitted to the power transmission shaft 25 so that the power transmission shaft 25 is muffled by the vertical transfer brushing method.

At this time, the moving trace of the power transmission shaft 25 varies depending on the shape of the helical flaw 222 of the flat plate gear 22. That is, when the helical flaw 222 is formed as ⓐ, ⓑ, ⓒ, ⓓ, when the motor 21 rotates counterclockwise, the front shaft 221 of the flat gear 22 is the upper cam. Rotation axis 221 of the flat plate gear 22 when the power transmission shaft 25 oscillates in a vertical feed brushing manner, and the motor 21 rotates in a clockwise direction, coinciding with the center point ⓖ of 231. ) Is located between the center point of the hole 233 and the center point (ⓕ) of the lower cam 232 so that the power transmission shaft 25 vibrates by the bath brushing method.

When the helical flaw 222 is formed as ⓐ, ⓑ, ⓒ, when the motor 21 rotates counterclockwise, the rotation shaft 221 of the flat plate gear 22 is the center point of the upper cam 231. When the power transmission shaft 25 vertically vibrates by the feed tooth method and the motor 21 rotates in the clockwise direction, the rotating shaft 221 of the flat plate gear 22 rotates in the hole. Consistent with the center point of 233, the power transmission shaft 25 vibrates by a circular locus method.

When the helical flaw 222 is formed of ⓐ and ⓑ, when the motor 21 rotates counterclockwise, the rotation shaft 221 of the flat plate gear 22 is the center point ⓖ of the upper cam 231. When the power transmission shaft 25 is driven by the vertical transfer tooth method and the motor 21 rotates clockwise, the rotation shaft 221 of the flat plate gear 22 is the upper cam 231. Located between the center point () of the center and the center point of the hole 233, the power transmission shaft 25 is vibrated by the ponsing method.

If the helical flaw 222 is formed of ⓑ, ⓒ, ⓓ, ⓔ, when the motor 21 rotates counterclockwise, the rotation shaft 221 of the flat plate gear 22 is the upper cam 231. The rotary shaft 221 of the flat plate gear 22 vibrates between the center point ⓖ and the center point of the hole 233 so that ⓕ of the lower cam 232 vibrates by a rolling feed brushing method.

When the helical flaw 222 is formed as ⓑ, ⓒ, ⓓ, when the motor 21 rotates counterclockwise, the rotation shaft 221 of the flat plate gear 22 is the center point of the upper cam 231. Is located between the center point of the hole 233 and the power transmission shaft 25 is rotated in a ponsian tooth direction, and when the mutter 21 rotates in a clockwise direction, The rotation shaft 221 is positioned between the center point of the hole 233 and the center point ⓕ of the lower cam 232 so that the power transmission shaft 25 vibrates by the bath brushing method.

When the helical flaw 222 is formed of ⓑ and ⓒ, when the motor 21 rotates counterclockwise, the rotation shaft 221 of the flat plate gear 22 is the center point ⓖ of the upper cam 231. ) And the axis of rotation of the plate gear 22 when the power transmission shaft 25 vibrates in the ponsing method and the motor 21 rotates clockwise. 221 is coincident with the center point of the hole 233, the power transmission shaft 25 is vibrated by a circular tooth brushing method.

When the helical flaw 222 is formed of ⓒ, ⓓ, ⓔ, when the motor 21 rotates counterclockwise, the rotation shaft 221 of the flat plate gear 22 is located at the center point of the life 233. In response, when the power transmission shaft 25 vibrates in a circular locus, and the motor 21 rotates in a clockwise direction, the rotation shaft 221 of the flat plate gear 22 rotates in the lower cam 232. In accordance with the center point (ⓕ), the power transmission shaft 25 is driven by a rolling feed brushing method.

When the helical flaw 222 is formed by ⓒ and ⓓ, when the motor 21 rotates counterclockwise, the rotation shaft 221 of the flat plate gear 22 coincides with the center point of the hole 233. When the power transmission shaft 25 vibrates in a circular locus, and the motor 21 rotates clockwise, the rotation shaft 221 of the flat plate gear 22 is the center point of the hole 233 and the Located between the center point (ⓕ) of the lower cam 232, the power transmission shaft 25 is vibrated by the bath brushing method.

When the helical flaw 222 is formed as ⓓ, ⓔ, when the motor 21 rotates in the counterclockwise direction, the rotation axis 221 of the flat plate gear 22 is the center point of the hole 233 and the lower portion. When the power transmission shaft 25 is vibrated by the bath brushing method and the motor 21 is abducted in the clockwise direction, positioned between the center points ⓕ of the cams 232, the rotation shaft of the plate gear 22 221 is coincident with the center point of the lower cam 232 so that the power transmission shaft 25 vibrates by a rolling feed brushing method.

The electric toothbrush according to the present invention as described above has a motion trajectory of the power transmission shaft is changed along the direction of rotation of the motor, giving a stable phase to the movement of the power transmission shaft using a two-stage cam, the power loss is reduced.

Claims (14)

A gripping part in which a rechargeable battery and a motor are embedded, a power transmission part for converting rotational force of the motor into a reciprocating motion such as a linear reciprocating light, and a circular motion, a switch part for coordinating the rotational direction of the boat, and bristles are inserted into the front side, and the power transmission part In a conventional electric toothbrush composed of a head portion for driving teeth in a predetermined direction by driving, the power transmission portion is rotated by receiving the power of the motor, the upper portion of the circumference is the same size as the circumference gear The cam and the lower cam are integrated while overlapping each other to include each other's center point, and a rectangular hole including two center points is formed in the overlapping portion to insert the rotating shaft of the flat gear into the lifejacket, and the lower edge of the lower cam. Perpendicular to each other with a two-stage circular cam including a protrusion moving along the groove of the flat gear It is composed of two rectangular cams, the two cams of the upper cam and the lower cam is inserted into the two-stage cam and the electric transmission shaft for transmitting the movement trajectory of the two-stage cam to the head portion toothbrush. 2. The powered toothbrush of claim 1, wherein the circumferential size of the upper cam decreases gradually as it descends. 2. The method of claim 1, wherein when the motor rotates in the first direction, the feed shaft of the flat plate gear coincides with the center point of the upper cam so that the power transmission shaft vibrates by a vertical feed brushing method, and the motor rotates in the second direction. And a rotational axis of the flat plate gear coincides with the center point of the lower cam when rotating in the direction, so that the power transmission shaft vibrates by a rolling feed brushing method. The method of claim 1, wherein when the motor rotates in the first direction, the axis of rotation of the plate gear coincides with the center point of the upper cam so that the power transmission shaft vibrates by a vertical feed brushing method, and the motor And the rotational axis of the flat plate gear is located between the center point of the hole and the center point of the lower cam so that the power transmission shaft vibrates by bath brushing. 2. The method of claim 1, wherein when the motor rotates in the first direction, the axis of rotation of the plate gear coincides with the center point of the upper cam so that the power transmission shaft vibrates by a vertical feed brushing method, and the motor is directed to the second network. And the power transmission shaft vibrates by a circular tooth brush as the rotation axis of the flat plate gear coincides with the center point of the hole when rotating. The method of claim 1, wherein when the motor rotates in the first direction, the axis of rotation of the plate gear coincides with the center point of the upper cam so that the power transmission shaft vibrates by a vertical feed brushing method, and the motor direction And the rotary shaft of the flat gear is positioned between the upper cam of the center point and the rounded point of the life of the plate gear so that the power transmission shaft vibrates by the ponsing method. According to claim 1, When the motor rotates in the first direction, the axis of rotation of the plate gear is located between the center point of the upper cam and the center of the hole so that the power transmission shaft vibrates by the ponsing method, And the power transmission shaft vibrates by a rolling feed brush when the motor rotates in the second direction so that the axis of rotation of the plate gear coincides with the center point of the lower cam. The motor according to claim 1, wherein when the motor rotates in the first direction, the axis of rotation of the plate gear is positioned between the center point of the upper cam and the center point of the hole so that the power transmission shaft is driven by the phoning method. Is rotated in the second direction, the rotation axis of the flat gear is located between the center point of the hole and the center point of the lower cam so that the power transmission shaft is electrically driven by the bath brushing method. According to claim 1, When the motor rotates in the first direction, the axis of rotation of the plate gear is positioned between the center point of the upper cam and the center point of the life of the power transmission shaft is driven by the ponsing method, And a power transmission shaft vibrating by a circular locus method when the motor rotates in the second direction so that the axis of rotation of the plate gear coincides with the center point of the hole. 2. The motor according to claim 1, wherein when the motor rotates in the first direction, the axis of rotation of the plate gear coincides with the center point of the hole so that the power transmission shaft vibrates in a circular locus, and the motor moves in the second direction. And a rotating shaft of the flat plate gear coincides with the center point of the lower cam when rotating, so that the power transmission shaft vibrates by a rolling transfer equivalent method. 2. The method of claim 1, wherein when the motor rotates in the first direction, the axis of rotation of the plate gear coincides with the center point of the hole so that the power transmission shaft vibrates in a circular locus, and the motor moves in the second direction. When rotating, the electric toothbrush, characterized in that the axis of rotation of the plate gear is located between the center point of the hole and the center point of the lower cam so that the power transmission shaft vibrates by the bath brush method. According to claim 1, When the motor rotates in the first direction, the axis of rotation of the plate gear is located between the center point of the hole and the center point of the lower cam so that the power transmission shaft vibrates by the bath brushing method, When the motor rotates in the second direction, the power transmission shaft is electrically driven by the roller feed brush so that the axis of rotation of the plate gear coincides with the center point of the lower cam. A gripper having a rechargeable battery and a motor embedded therein, a power transmission unit for converting the rotational force of the motor into a linear reciprocating light motion and a circular motion, a switch unit for adjusting the rotational direction of the motor, and bristles are inserted into the front surface of the power transmission unit. In a conventional electric toothbrush composed of a head portion for driving teeth in a predetermined direction by driving, the switch portion determines the rotation direction of the motor of the dynamometer. Electric toothbrush, characterized in that consisting of a push switch unit to reverse the charge and a rotor switch unit for adjusting the rotational force of the motor. The second connector of claim 13, wherein the first connector connected to the first terminal of the rechargeable battery and the first resistor connected to the second terminal of the rechargeable battery and the first terminal are suitably connected to the second terminal of the first resistor. A third connector, a fourth connector connected to the first terminal of the rechargeable battery, a fifth connector connected to the second terminal of the first resistor, a second resistor and a sixth connector connected in series to the second terminal of the rechargeable battery, and An electric toothbrush comprising a seventh connector connected to a second terminal of a rechargeable battery and a driver connecting the motor with the first and second connectors or the motor and the third and fourth connectors.