TW201717858A - Electric toothbrush capable of interactively swinging a first toothbrush unit and a second toothbrush unit to conveniently clean teeth - Google Patents

Abstract

An electric toothbrush comprises a grip unit, a first toothbrush unit, a second toothbrush unit and a driving unit. The first toothbrush unit disposed on the grip unit is driven to swing relative to the grip unit. The second toothbrush unit, which is adjacent to the first toothbrush unit and disposed on the grip unit, is driven to swing relative to the grip unit. The driving unit comprises a motor disposed on the grip unit and a driving shaft linked by the motor to rotate about a shaft axis thereof, in which the driving shaft has a first eccentric portion utilized to drive the first toothbrush unit for swinging, and a second eccentric portion utilized to drive the second toothbrush unit for swinging. By means of the arrangement of the first eccentric portion driving the first toothbrush unit to swing and the second eccentric portion driving the second toothbrush unit to swing, the first toothbrush unit and the second toothbrush unit can be interactively swinging, thus to conveniently clean teeth.

Description

electric toothbrush

The present invention relates to a toothbrush, and more particularly to an electric toothbrush.

The existing electric toothbrush can be divided into two forms of vibration bristles or rotating bristles, and the effect of cleaning teeth can be achieved by high-speed vibration or rotating friction.

However, the most effective way to clean the teeth is to perform a reciprocating oscillating brush on the teeth. Therefore, there is another electric toothbrush disclosed in the Republic of China Patent Publication No. TW201529048, which has a motor and a drive assembly driven by the motor. And a bristle group interlocked by the transmission component, the design of the transmission rod enables the bristle group to swing back and forth, thereby achieving the effect of cleaning the teeth.

Although the aforementioned electric toothbrush provides a solution for cleaning teeth in a reciprocating manner, related research continues to be under study.

Accordingly, it is an object of the present invention to provide an interactive oscillating electric toothbrush.

Thus, the electric toothbrush of the present invention comprises a grip unit, a first toothbrush unit, a second toothbrush unit, and a drive unit.

The first toothbrush unit is disposed on the grip unit and is swayable relative to the grip unit. The second toothbrush unit is disposed adjacent to the grip unit and can be driven to The handle unit swings, the drive unit includes a motor disposed on the grip unit, and a drive shaft that is rotated by the motor and rotates about an axis of the motor, the drive shaft has a driving of the first toothbrush unit a first eccentric portion and a second eccentric portion that drives the second toothbrush unit to swing.

The effect of the present invention is that the first toothbrush unit and the second toothbrush are driven by the driving shaft to drive the first eccentric portion of the first toothbrush unit and the second eccentric portion of the second toothbrush unit to swing. The unit is able to swing interactively, making it easier to clean the teeth.

Referring to Figures 1, 2 and 3, an embodiment of the electric toothbrush of the present invention comprises a grip unit 2, a first toothbrush unit 3, a second toothbrush unit 4, and a drive unit 5.

The grip unit 2 includes a grip portion 21, a use portion 22 opposite the grip portion 21, and a cover 23 disposed on the use portion 22.

The use section 22 has a six-swing groove 221 and a pivot hole 222 at the top.

The first toothbrush unit 3 is disposed on the use section 22 of the grip unit 2 and is swayable relative to the grip unit 2, the first toothbrush unit 3 includes a first pusher portion 31, and a connection portion a first extending portion 32 of the swinging portion 31, a first toothbrush holder 33 connected to the first extending portion 32, and a plurality of the first toothbrush holders 33 are disposed on the first toothbrush holder 33 and swingably disposed through the grip unit 2 The first bristles 34 of the groove 221 are swung. In the present embodiment, the first bristles 34 pass through the corresponding oscillating grooves 221 in an arrangement of three bundles and three columns.

The first push portion 31 is disposed corresponding to the cover 23 of the grip unit 2 and has a first through hole 311 having a consistent through hole 321 .

The second toothbrush unit 4 is disposed adjacent to the first toothbrush unit 3 in the use section 22 of the grip unit 2, and can be driven to swing relative to the grip unit 2. The second toothbrush unit 4 includes a second push a pendulum 41, a second extending portion 42 connected to the second sliding portion 41 and extending through the first extending portion 32, and a second toothbrush holder 43 connected to the second extending portion 42 The second brush holder 43 is slidably disposed in the second bristles 44 of the swinging groove 221 of the grip unit 2, and is disposed on the top of the second toothbrush holder 43 and rotatably disposed on the grip unit 2 The pivoting portion 45 of the pivot hole 222. In this embodiment, the second bristles 44 pass through the corresponding oscillating grooves 221 in a three-row, three-column arrangement.

The second swaying portion 41 is disposed in the cover body 23 of the first extending portion 32. The second slanting portion 42 is disposed in the through hole 321 of the first extending portion 32.

The driving unit 5 includes a motor 51 disposed on the grip portion 21 of the grip unit 2, a shaft segment L disposed on the use section 22 of the grip unit 2, and coupled to the shaft 51 by itself. A rotating drive shaft 52 and a transmission rod 53 disposed between the motor 51 and the drive shaft 52.

The motor 51 has a rotating shaft 511. The driving rod 53 has a rear slot 531 for inserting the rotating shaft 511 of the motor 51, and a connecting portion 532 opposite to the rear slot 531. The rotating shaft 511 and the rear The cross section adjacent to the slot 531 is not circular. In this embodiment, the cross section of the rotating shaft 511 and the rear slot 531 adjacent to each other is semicircular.

The driving shaft 52 has a first eccentric portion 521 and a second eccentric portion 522 spaced along the axis L of the shaft, and a transfer slot 523 for inserting the transition portion 532 of the transmission rod 53. The cross section of the transition section 532 and the adapter slot 523 adjacent thereto is not circular. In this embodiment, the cross section of the adapter segment 532 adjacent to the adapter slot 523 is quadrilateral and octagonal, respectively.

The first eccentric portion 521 is away from the motor 51 with respect to the second eccentric portion 522, and the first eccentric portion 521 and the second eccentric portion 522 are offset from the axis line L in opposite directions.

The first eccentric portion 521 is rotatably disposed in the first through hole 311 of the first yoke portion 31, and can be driven to swing when the first yoke portion 31 is rotated, thereby driving the first toothbrush unit 3 to The second extension portion 42 swings for the axis.

The second eccentric portion 522 is rotatably disposed in the second through hole 411 of the second yoke portion 41, and can be driven to swing when the second yoke portion 41 is rotated, thereby driving the second toothbrush unit 4 to The pivoting portion 45 swings for the fulcrum.

Referring to FIGS. 2, 3, and 4, when the motor 51 drives the rotating shaft 511 to rotate the transmission rod 53 and the driving shaft 52, the first eccentric portion 521 and the second eccentric portion 522 of the driving shaft 52 are used. That is, the axis line L is deflected. At this time, the first push portion 31 and the second push portion 41 are respectively swung by the first eccentric portion 521 and the second eccentric portion 522 to swing left and right.

When the first eccentric portion 521 is yawed to the left side of FIG. 4, the first toothbrush unit 3 is deflected to the left side, and the second eccentric portion 522 is yawed to the right side at this time, and interlocked to make the second The toothbrush unit 4 is deflected to the right.

2, 3, and 5, when the first eccentric portion 521 is yawed to the right side of FIG. 5, the first toothbrush unit 3 is deflected to the right side, and the second eccentric portion 522 is biased at this time. To the left side, and interlocking to deflect the second toothbrush unit 4 to the left side.

As the first eccentric portion 521 and the second eccentric portion 522 are continuously deflected around the axis line L, the first toothbrush unit 3 and the second toothbrush unit 4 are continuously deflected back and forth, thereby corresponding The first bristles 34 and the second bristles 44 are reciprocally oscillated, thereby allowing the user to obtain an interactive brushing effect when brushing the teeth.

In summary, the first tooth unit 521 that drives the first toothbrush unit 3 to swing and the second eccentric portion 522 that swings the second toothbrush unit 4 are driven by the driving shaft 52 to make the first toothbrush unit 3 And the second toothbrush unit 4 can be oscillated interactively, and it is more convenient to clean the teeth, so that the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

2‧‧‧ grip unit
21‧‧‧ Holding section
22‧‧‧Use paragraph
221‧‧‧Wobble groove
222‧‧‧ pivot hole
23‧‧‧ Cover
3‧‧‧First toothbrush unit
31‧‧‧The first pusher
311‧‧‧First perforation
32‧‧‧First Extension
321‧‧‧through holes
33‧‧‧First toothbrush holder
34‧‧‧First bristles
4‧‧‧second toothbrush unit
41‧‧‧Second push
411‧‧‧Second perforation
42‧‧‧Second extension
43‧‧‧Second toothbrush holder
44‧‧‧second bristles
45‧‧‧ pivoting department
5‧‧‧ drive unit
51‧‧‧Motor
511‧‧‧ shaft
52‧‧‧ drive shaft
521‧‧‧First eccentric
522‧‧‧Second eccentric
523‧‧‧Transfer slot
53‧‧‧Transmission rod
531‧‧‧ rear slot
532‧‧‧Transfer section
L‧‧‧ axis line

BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the present invention will be apparent from the embodiments of the present invention. FIG. 1 is a perspective view of an embodiment of an electric toothbrush of the present invention; FIG. 2 is an exploded perspective view of the embodiment. 3 is a partial perspective view of the embodiment; FIG. 4 is a schematic view of the use of the first toothbrush unit to the left side and a second tooth unit to the right side; and 5 is a view similar to FIG. 4, illustrating the state in which the first toothbrush unit is yawed to the right and the second toothbrush unit is yawed to the left.

3‧‧‧First toothbrush unit

31‧‧‧The first pusher

311‧‧‧First perforation

32‧‧‧First Extension

321‧‧‧through holes

33‧‧‧First toothbrush holder

34‧‧‧First bristles

4‧‧‧second toothbrush unit

41‧‧‧Second push

411‧‧‧Second perforation

42‧‧‧Second extension

43‧‧‧Second toothbrush holder

44‧‧‧second bristles

45‧‧‧ pivoting department

521‧‧‧First eccentric

522‧‧‧Second eccentric

L‧‧‧ axis line

Claims (9)

An electric toothbrush comprising: a grip unit; a first toothbrush unit disposed on the grip unit and swayable relative to the grip unit; a second toothbrush unit adjacent to the first toothbrush unit The grip unit is swayable relative to the grip unit; and a drive unit includes a motor disposed on the grip unit and a motor that rotates about its own axis by the motor a driving shaft having a first eccentric portion for driving the first toothbrush unit to swing, and a second eccentric portion for driving the second toothbrush unit to swing. The electric toothbrush according to claim 1, wherein the first toothbrush unit comprises a first pusher portion disposed on the first eccentric portion and oscillated by the first eccentric portion, and a first pusher is connected a first extension portion of the portion, a first toothbrush holder connected to the first extension portion, and a plurality of first bristles disposed on the first toothbrush holder, the second toothbrush unit including a set of the second eccentric portion a second push portion that is oscillated by the second eccentric portion, a second extension portion connected to the second push portion and disposed through the first extension portion, and a second toothbrush holder connected to the second extension portion And a plurality of second bristles disposed on the second toothbrush holder. The electric toothbrush according to claim 2, wherein the first push portion has a first through hole rotatably provided by the first eccentric portion, and the second push portion has a second eccentric portion a second through hole rotatably disposed, the first extending portion having a through hole through which the second extending portion is rotatably disposed. The electric toothbrush according to claim 1, wherein the first eccentric portion and the second eccentric portion are spaced apart along the axial line, and the first eccentric portion is away from the motor relative to the second eccentric portion. The electric toothbrush according to claim 4, wherein the first eccentric portion and the second eccentric portion are offset from the axis line in opposite directions. The electric toothbrush according to claim 1, wherein the driving unit further comprises a transmission rod disposed between the motor and the driving shaft, the motor having a rotating shaft, the driving rod having a shaft for inserting the rotating shaft The slot, the cross section of the rotating shaft and the rear slot adjacent to the rear slot is not circular. The electric toothbrush of claim 1, wherein the driving unit further comprises a transmission rod disposed between the motor and the drive shaft, the transmission rod having a transfer section having a switch for the transfer A section of the adapter slot, the cross section of the adapter section and the adapter slot adjacent to the adapter slot is not circular. The electric toothbrush according to claim 1, wherein the first toothbrush unit includes a plurality of first bristles, the second toothbrush unit includes a plurality of second bristles, the grip unit includes a grip portion for the motor, and a pair of the holding section and the use section of the driving shaft, the first toothbrush unit and the second toothbrush unit, the use section having a plurality of the first bristles and the second bristles being swingably pierced Swing groove. The electric toothbrush according to claim 8, wherein the first toothbrush unit further comprises a first push portion disposed on the first eccentric portion, the second toothbrush unit further comprising a set of the second eccentricity The second push portion of the portion further includes a cover body disposed on the use section and disposed on the first push portion and the second push portion.