CN1050991C

CN1050991C - Oscillating electrical toothbrush

Info

Publication number: CN1050991C
Application number: CN 95116475
Authority: CN
Inventors: 沈仲山
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-09
Filing date: 1995-10-09
Publication date: 2000-04-05
Anticipated expiration: 2015-10-09
Also published as: CN1147368A

Abstract

The present invention relates to an oscillating electrical toothbrush which comprises a built-in motor, a battery body, a bearing seat fixedly arranged on the top of the body by a bearing seat cover, a driving shaft which is hinged on the bearing seat and is driven to rotate by the motor through a transmission mechanism, and a toothbrush body inserted in the driving shaft. The present invention is characterized in that the transmission mechanism comprises a driven body, a driving body and a switch back spring arranged between the driving shaft and the bearing seat, wherein the driven body is fixedly arranged at the bottom end of the driving shaft arranged in the bearing seat, and a bearing rod is arranged on the driven body; the driving body is arranged on an output shaft of the motor arranged in the bearing seat, and a shifting rod corresponding to the bearing rod is arranged on the driving body and continuously rotates along with the operation of the motor. The driven body, the driving body and the toothbrush body are driven by the motor to rotate, and the driven body, the driving body and the toothbrush body are elastically oscillated and back swung by the elastic force of the spring to enable the toothbrush body to do an oscillating tooth brushing action.

Description

Oscillating electrical toothbrush

The present invention relates to a kind of electric toothbrush, refer to a kind of electric toothbrush that when backswing, has appropriate bullet shake effect especially.

The teeth brushing way of mistake or custom, thorough cleaning teeth not only, easier so damage gingiva, and cause the injury that is difficult to remedy.Timing and correct method for brushing teeth, be to keep oral hygiene and healthy unique channel, according to the up-to-date research report of stomatology, the best mode of brushing teeth, be the gap along tooth, the brush of making vertical direction is moving, and bullet shake effect is intermittently preferably arranged when brush moves backswing simultaneously, so not only can not injure gingiva, and can obtain best cleaning effect! Common people are not if pass through some study and training, be difficult to form above-mentioned correct tooth-brushing habit and mode, if can be with the above-mentioned action of brushing teeth, be incorporated among the electric toothbrush, and finish with the mechanism of particular design, then very naturally, can make ordinary consumer enjoy above-mentioned method of brushing teeth widely, and bring cleaning healthy tooth.

Purpose of the present invention provides a kind of electric toothbrush that meets above-mentioned vibration-type method for brushing teeth.

Oscillating electrical toothbrush of the present invention mainly comprises: a body, interior installing motor and set of cells, running that can the on-off control motor; One bearing is fixed on the bodies top with bearing lid, in establish drive mechanism; One driving shaft is hinged on bearing, can be subjected to motor to make predetermined angular through the drive mechanism transmission and back and forth rotate; One brush body, intercalation be in drive shaft end, and do reciprocal rotation with driving shaft; It is characterized in that this drive mechanism, comprise: a driven member is fixedly arranged on the driving shaft end in the bearing, and is provided with one and holds bar; One driving body is located on the motor output shaft in the bearing, is provided with a driving lever to agreeing the bar place it on, is to turn round continuously with the running of motor, can promote to hold the rotation that bar is made predetermined corner, then automatically with hold the bar disengaging; One goes back to spring, is located between driving shaft and bearing, can order about the driven member and the shake of driving shaft bullet that are pushed the back and break away from and reset.

By this, do intermittently to rotate, and the elastic force that mat goes back to spring makes brush body do the action of brushing teeth of Oscillating driven member, driving shaft and brush body bullet shake backswing but the mat motor drives driving body, driven member, driving shaft and brush body.

The present invention is for achieving the above object, come the technological means and the effect thereof of usefulness, lift two preferred embodiments now, and conjunction with figs. details are as follows:

Fig. 1 is the three-dimensional exploded view of first embodiment of the invention;

Fig. 2 is the assembled sectional view of first embodiment of the invention;

Fig. 3 A, 3B, 3C, 3D are the action sketch maps of first embodiment of the invention drive mechanism;

Fig. 4 is the sectional perspective exploded view of second embodiment of the invention;

Fig. 5 A, 5B, 5C, 5D are the local constitutional diagrams of second embodiment of the invention, show the operating state of its drive mechanism simultaneously.

Consult Fig. 1 and 2: the present invention is made up of a body 1, a motor 2, a bearing 3, a driving shaft 4, a drive mechanism 5, a chuck 6, institutes such as bearing lid 7, one locking cap 8, a brush body 9 and a capping 99; Wherein,

Body 1 is long tubular, and an axis hole 11 is offered at the top, and periphery is provided with screw thread 12, and inner tip forms motor fixed chamber 13, for installing motor 2, a battery room 14 is established in its bottom, can be installed with battery 15, so that motor 2 running institute palpus power supply to be provided, the sealed bottom 16 in its bottom is in order to replacing battery 15.Motor 2 is installed in the motor fixed chamber 13, and its output shaft 21 can protrude out axis hole 11 outsides.

Bearing 3 also is tubular, is positioned on body 1 top, and an axis hole 31 is offered at its top, this axis hole 31 respectively is provided with bearing block 32a, 32b up and down, respectively be embedded with little bearing 33a, 33b among bearing block 32a, the 32b, chamber 34 is offered in bearing 3 bottoms, laterally offers a short slot 35 on the chamber 34.

Driving shaft 4 is to be arranged among bearing 3 two bearing 33a, the 33b, can freely rotate flexibly.

Drive mechanism 5 be by: a driven member 51, a driving body 52 and a volute go back to spring 53 to be formed, and driven member 51 is annular cylinder shape, is fixedly arranged on driving shaft 4 bottoms, and is installed with in the chamber 34 of bearing 3; Which is provided with and hold bar 511, hold bar 511 the inners and stretch in the ring, the outer end is located in the short slot 35 of bearing 3, with the restriction rotational angle; Driving body 52 sets firmly on dried motor 2 output shafts 21, a driving lever 521 is arranged on it, and be contained in the driven member 51, can be with motor 2 runnings; Go back to spring 53 and be located at 3 of driven member 51 and bearings; The most important thing is: between the output shaft 21 of this driven member 51 and motor 2 (and driving lever 521), form eccentric the setting, therefore when motor 2 runnings, but mat driving lever 521 promotes the rotation that bar 511 and driving shaft 4 are made predetermined angular of holding of driven members 51, the mat elastic force bullet pendulum that goes back to spring 53 resets then, produces the bullet shake effect of appropriateness.

Chuck 6 central authorities offer an axis hole 61, and are fixedly arranged on the driving shaft 4, and its top formation one pushes away pulls out clamping head 62, offers some axial grooves 621 on the clamping head 62, when its pressurized, can produce and radially tighten phenomenon, to clamp brush body 9.

Bearing is covered 7 center of top and is offered an axis hole 71, periphery is provided with screw thread 72, the inner bearing fixed chamber 73 that forms, a flange 74 is established in the bottom, be to be sheathed on the bearing 3, and mat one lock ring 75 is placed on the flange 74 and it is locked on body 1 screw top 12, which is provided with electric switch 76, with the running of control motor 2.

Locking cap 8 central authorities offer an axis hole 81, axis hole 81 bottoms are provided with ball bearing 82, its inwall is provided with screw thread 83, but spiral shell is located at bearing and is covered on 7 screw top 72, when it is screwed down, can utilize the pushing and drawing shape internal ring 821 of bearing 82 to press pushing away of end chuck 6 to pull out clamping head 62, the clamping action that makes its generation contract and receive.

The bottom of brush body 9 is convexly equipped with a connecting rod 91, can be intercalated in the axis hole 61 of chuck 6, and mat locking cap 8 is it locking again, can be combined into one do the Oscillating motion of brushing teeth with driving shaft 4.Capping 99 be covered on bearing lid 7 face (as Fig. 2).

Consult Fig. 1 and 2, use situation for first embodiment of the invention: the connecting rod 91 of brush body 9 is inserted in the chuck 6, and with the tight locking cap 8 of hand-screw, brush body 9 and driving shaft 4 firmly are combined into one, press switch 76 again, can mat motor 2 drive brush body 9 and produce the vibration-types action of brushing teeth.

Consult Fig. 2 and 3, action situation for first embodiment of the invention: at the beginning, driving shaft 4 is gone back to the effect of spring 53, the bar of fixing on it 511 that holds is resisted against on short slot 35 1 sides of bearing 3, therefore driving shaft 4 and brush body 9 all keep static, and the eccentric driving body 52 that is provided with is subjected to the drive of motor 2 and turns round (as shown in Figure 3A); Driving body 52 continues rotation, the bar 511 that holds that its driving lever 521 is promoted on the driven member 51 rotates together, therefore drive rod 4 and brush body 9 can rotate (shown in Fig. 3 B) synchronously, the rotational angle of this brush body 9, but the degree of eccentricity of mat driving lever 521 and length, or short slot 35 length, the position of bearing 3 are waited and are set; Driving body 52 continues rotation, because the eccentric result who is provided with, its driving lever 521 will slip away and hold bar 511, therefore, the elastic force effect that driving shaft 4 that breaks away from and brush body 9 will be gone back to spring 53, and pop into position, and rebound make hold bar 511 and strike against on the short slot 35 in, produce the bullet shake effect of appropriateness, make the action more effective (shown in Fig. 3 C, 3D) of brushing teeth; When driving body 52 remained in operation again, what can promote again that bullet pendulum resets held bar 511 again, and produces the seriality do action, makes brush body 9 produce intermittent swings and bullet shake motion, is beneficial to brush teeth.

Consult shown in the Figure 4 and 5: be the second embodiment of the present invention, mainly provide the drive mechanism 5 that another kind can produce pendulum shake motion, with details are as follows about part (all the other are partly similar to preceding embodiment, so do not give unnecessary details):

Bearing 3 is provided with runners 39, fixation and is fixed in it on body 1 with bearing lid on body 1 top, its center of top also be embedded with little ball bearing 33a, 33b up and down, being connected, and on the medial and lateral of bearing 3 bottom anchor rings 36, be arranged with inside and outside protruding

rail

37,38 with driving shaft 4.

Drive mechanism 5 is also gone back to institutes such as spring 53 and forms by driven member 51, driving body 52 and; Wherein, this driven member 51 is provided with one and holds bar 511, is to be fixedly arranged on driving shaft 4 bottoms, and is installed with in bearing 3; Driving body 52 is plate-like, be that slip cap is located on the non-circular output shaft 21 of motor 2 and (is quadrangle in the circle), but can be with output shaft 21 running and axial slips, output shaft 21 bottom carrier rings 22 and 52 of driving bodies are arranged with a compression spring 54, driving body 52 can be risen with bearing 3 anchor rings 36 and contact, on its end face 524 medial and lateral within the corresponding bearing 3,

outer protruding rail

37,38 is provided with interior and exterior cam 522,523, cam ring 522 inboards are to agreeing the driving lever 521 that bar 511 is provided with a projection; Go back to spring 53 and be located at 3 of driven member 51 and bearings; When motor 2 runnings, can drive driving body 52 runnings, driving body 52 spring 54 effects by compression simultaneously are against on bearing 3 anchor rings 36 slides, therefore driving lever 521 can promote to hold the rotation that bar 511 and driving shaft 4 are made predetermined angular, when driving body 52 interior and exterior cam 522,523 slide on the inside and

outside rail

37,38, driving body 52 will compress spring 54 and move down, driving lever 521 is slipped away hold bar 511, but mat goes back to spring 53 elastic force driving lever 521 and driving shaft 4 bullets pendulum is resetted then, produces the bullet shake effect of appropriateness.

Consult shown in Figure 5, operation situation for second embodiment of the invention: the driving body 52 that is subjected to motor 2 transmissions, also the pushing tow of spring 54 rises by compression, cam 522,523 is contacted with the anchor ring 36 of bearing 3, and driving lever 521 also rises and combines with holding bar 511, therefore can promote driven member 51, driving shaft 4 and brush body 9 and rotate (shown in Fig. 5 A); Driving body 52 remains in operation, when cam 522,523 slides onto on the protruding

rail

37,38, driving body 52 is forced to descend, driving lever 521 also descends to slipping away and holds bar 511, so driven member 51, driving shaft 4 and brush body 9 no longer are rotated further (shown in Fig. 5 B), the rotational angle of this brush body 9, but the arc length of

mat protruding rail

37,38 and cam 522,523, and the coupling of relative position changes setting; Driving body 52 continues rotation, but driven member 51, driving

shaft

4 and 9 of brush bodies are gone back to the elastic force effect of spring 53 and pop into position (shown in Fig. 5 C); Driving body 52 remains in operation, and makes cam 522,523 protruding

rail

37,38 that slips away, and spring 54 pushing tows by compression, get back on the anchor ring 36 and rise, so driving lever 521 also rises and combined (shown in Fig. 5 D) by the bar 511 that holds of pop into position again; Therefore during driving body 52 continuous operation, can produce the seriality do action, make brush body 9 produce intermittent swings and bullet shake motion, be beneficial to brush teeth.

In sum, characteristics of the present invention are the main points that the science that meets is brushed teeth, can be clear The tooth that cleans one's teeth can produce microseism again, and is simple to operate, even the child also need not strictly to train Can obtain correct tooth and keep a public place clean, and the replacing of head toothbrushes being very convenient, is a practicality Give birth to very strong tooth brush for health protection.

Claims

1, a kind of oscillating electrical toothbrush includes: body (1), bearing (3), driving shaft (4), brush body (9), drive mechanism (5), wherein, installing motor (2) and battery (15) in the body (1); Bearing (3) is fixed on body (1) top with bearing lid (7), in establish drive mechanism; Driving shaft (4) is hinged on bearing (3); Brush body (9) intercalation is held at driving shaft (4), it is characterized in that: drive mechanism (5) includes driven member (51), driving body (52) and goes back to spring (53), wherein, driven member (51) is installed on driving shaft (4) end in the bearing (3), and is provided with one and holds bar (511); Driving body (52) is located on the interior motor output shaft (21) of bearing (3), locates to be provided with a driving lever (521) to agreeing bar (511) on it; Going back to spring (53) is located between driving shaft (4) and the bearing (3).

2, oscillating electrical toothbrush according to claim 1, it is characterized in that: wherein, the driven member (51) of drive mechanism (5) is annular cylinder shape, it holds bar (511) the inner and stretches in the ring, driving body (52) is contained in the ring of driven member (51), and forms eccentric the setting between driven member (51) and motor output shaft (21).

3, oscillating electrical toothbrush according to claim 1 is characterized in that: wherein, offer short slot (35) on the bearing (3), ccontaining driven member (51) hold bar (511) outer end, a flange (74) is established in bearing lid (7) bottom, is sheathed on the bearing (3).

4, oscillating electrical toothbrush according to claim 1 is characterized in that: wherein, set firmly a chuck (6) on the driving shaft (4), its central authorities offer an axis hole (61), and the top forms to push away pulls out clamping head (62), and clamping head is provided with groove (621); And establish a locking cap (8) in bearing lid (7) top spiral shell.

5, oscillating electrical toothbrush according to claim 1 is characterized in that: wherein, bearing (3) bottom anchor ring is provided with inside and outside protruding rail (37) (38); The driving body (52) of drive mechanism (5) is plate-like, and sliding sleeve is on the non-circular output shaft (21) of motor (2), be arranged with a compression spring (54) between output shaft (21) and driving body (52) bottom, the inside and outside protruding rail (37) (38) of corresponding bearing is provided with interior and exterior cam (522) (523) on the driving body top end face, the driving lever (521) of driving body (52) then is located at cam ring (522) inboard, and corresponding driven member (51) hold bar (511).