KR200419528Y1 - Electric toothbrush - Google Patents

Abstract

The present invention is an electric toothbrush that can automatically clean both sides of the tooth when the tooth is inserted between the pair of bristles rotating by the rotational force and the tooth is washed, and the bristles are fed to improve the tooth cleaning power without straining the gums. To adjust the minimum distance and the maximum distance between the toothbrushes within the allowable limits, in particular to install a "H" shaped toothbrush head at both ends of the pair of toothbrushes in order to set the elastic limit between the toothbrush, The toothbrush head is made of a silicone material so that the toothbrush head is elastic and deformable within the allowable limits, and a bearing is provided between the toothbrush head and the toothbrush core so that the toothbrush can be smoothly rotated in the toothbrush head where the toothbrush core is installed. It relates to an electric toothbrush that installs more. According to the present invention of such a configuration, even if you put the tooth between the pair of toothbrushes and give strength to the tooth by the toothbrush head made of silicone, there is no fear of injury to the mouth can be brushed by the user anywhere in the mouth, toothbrush The toothbrush is opened only within the elastic limit of the head, so that the gums are not damaged.

Electric toothbrush, motor, bearing, toothbrush head, gear

Description

Electric toothbrush {A device for power toothbrush}

BRIEF DESCRIPTION OF THE DRAWINGS The front perspective view which shows the structure of the electric toothbrush which concerns on this invention.

Figure 2 is a rear perspective view showing the configuration of the electric toothbrush according to the present invention.

3 is an exploded perspective view showing the configuration of the electric toothbrush according to the present invention;

4 to 7 is a state diagram showing the configuration of the electric toothbrush according to the present invention.

** Description of Codes for Major Configurations of Drawings **

100: electric toothbrush 110: body part

112: battery 114: motor

116: axis of rotation 118: switch

120, 122: transmission shaft 130, 132, 134, 136: gear

140, 142: latch portions 144, 146: polygon grooves

150: neck 152: lock button

154: hook 160, 162: swivel

164, 166: polygon rods 170, 172: connection portion

174, 176: cylindrical groove 180: toothbrush portion

182, 184: brush head 186, 188: brush head

190: toothbrush head 192, 194: bearing

196: hook groove 198: leg

200: bearing groove

The present invention relates to an electric toothbrush, and more particularly, in cleaning the teeth using a pair of bristles that rotate by the rotational force, the tooth cleaning power is improved, and the bristles brushed bristles without straining the gums A toothbrush head having an "H" shape is installed at both ends of the pair of toothbrushes so that the minimum distance and the maximum distance therebetween are adjusted within the allowable limits, and the toothbrush head is stretched and deformed within the allowable limits. It relates to an electric toothbrush made of material.

Toothbrushes are one of the toiletries that protects teeth, interdental, etc. from human harmful bacteria, there is an electric toothbrush that is rotated by an electric motor such as a manual toothbrush and a driving motor operated by a user holding a handle and moving in a predetermined direction.

The manual toothbrush is difficult to move up and down and circular movement of the toothbrush even in adults or skilled people, most of the time to end the brushing only by the front and rear movement of the toothbrush as a result of the foreign body removal is not effective effectively, in the case of children or the elderly, irritated gums There is a lung end that causes the oral hygiene to worsen.

The electric toothbrush rotated by an electric motor such as a drive motor has been developed, and the electric toothbrush is excellent in its effectiveness, and nowadays, people of various classes are using it, and thus the research and development of the electric toothbrush continues. As a result of continuous research and development, electric toothbrushes that are excellent in operation while simplifying the structure are being developed.

However, the conventional electric toothbrush is a toothbrush that mainly cleans the teeth by rotating the brush head 360 ° from the tooth surface when brushing the teeth, and recently, a toothbrush that is forward, reverse rotation has been released.

The electric toothbrush is not only complicated internal device, but also when the bristle tray with bristles is rotated 360 ° rotates to the center axis of the tray to prevent clean removal of food debris between the teeth and gums, It may be added.

In addition, there is a problem that does not effectively brush teeth only with the structure of the conventional electric toothbrush is installed one or two of the bristles bristles brushed.

In particular, most of the conventional electric toothbrush is formed integrally there is a disadvantage that can not replace the bristles, there is a disadvantage that is insufficient to protect the parts in the oral cavity other than teeth and interdental due to the bristle rotation.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to provide an electric toothbrush that effectively removes the umbilical plant debris between teeth without straining the gums. .

Another object of the present invention is to provide an electric toothbrush that is simple in structure and excellent in operation.

It is yet another object of the present invention to provide a powered toothbrush in which the bristles are separated from the body.

According to a feature of the present invention for achieving the object as described above, the present invention is a battery for supplying power, a motor driven by the battery, the first and second electric shaft rotated by the motor, It includes a gear assembly that allows the two electric shafts to receive power at the same time by one motor rotation shaft, the body portion for generating power, and a pair of toothbrushes in which the bristles are implanted to rotate the teeth by the power A pair of swivels is installed between the toothbrush portion to brush teeth and the pair of electric shafts and the pair of toothbrush cores, and the swivels transmit the rotational force of the electric shaft to the toothbrush cores, thereby driving the power of the motor. It comprises a neck of a predetermined length to transmit irrespective of the distance between the parts.

The gear assembly includes a first gear fixed to a rotation shaft of the motor, a second gear meshed with and interlocked with the first gear, and interlocked with the second gear at an end of the first transmission shaft. And a fourth gear which is installed at an end of the second transmission shaft and meshes with and interlocks with the third gear.

First and second latch portions are further installed at end portions of the first and second transmission shafts so as to be detachably coupled to one end of the swivel, and the elongated polygonal grooves are recessed in the latch portions. A polygonal rod corresponding to the polygonal groove is formed at an end thereof so that the polygonal rod is inserted into the polygonal groove.

The toothbrush core has a pretzel shape, and the bristles are planted by knots in the toothbrush core so that the bristles extend radially around the toothbrush core.

Both sides of the toothbrush core is connected to the elastic toothbrush head made of silicone for controlling the distance between the toothbrush core within the limit, the hook groove in which the hook of the neck is inserted in the center of the toothbrush head is molded and detached from the neck Possibly combined.

Upper and lower bearings are installed at both sides of the toothbrush core, and the toothbrush head extends in all directions to form an "H" shape, and at the end of the leg, the bearing groove is formed by inserting and rotating the bearing. .

In order to connect with the toothbrush part, the other end of the swivel is provided with a first and a second connection part having a cylindrical groove, and the lower bearing is press-fitted into the cylindrical groove of the connection part at the other end of the swivel. .

According to the electric toothbrush by this invention which has such a structure, there is an advantage that a gum is protected.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the electric toothbrush according to the present invention having the configuration as described above will be described in detail.

As shown in Figure 1 and 2, the electric toothbrush 100 of the present invention, the body portion 110 for generating power, the neck portion 150 for transmitting the power, the toothbrush driven by the power. It consists of 180.

As shown in Figure 3, the body portion 110 has a handle shape of the shape that can be gripped by the user, a battery 112 for supplying power is installed at the bottom, the upper portion of the battery 112 It is provided with a motor 114 driven by the battery 112, the upper side of the motor 114 is connected to two transmission shafts (120, 122) rotated by the motor 114, one side The switch 118 for turning on / off the motor 114 is installed.

The first and second transmission shafts 120 and 122 are configured to be interlocked by a gear assembly. The gear assembly includes a first gear 130 fixed to the rotation shaft 116 of the motor 114 and the first gear 130. A second gear 132 meshed with the first gear, a third gear 134 provided at an end of the first transmission shaft 120 and meshed with the second gear 132, and the first gear; It is composed of a fourth gear 136 is installed at the end of the two electric shaft 122 and meshed with the third gear 134.

Ends of the first transmission shaft 120 and the second transmission shaft 122 are detachably coupled to the rotating shafts 160 and 162 to be described later, and the first and the second transmission shafts transmit power of the motor to the rotating shafts 160 and 162. Second latch portions 140 and 142 are provided. The elongated polygonal grooves 144 and 146 are recessed in the latch portions 140 and 142.

The neck 150 is connected to the torso 110 in the lower portion, and connected to the toothbrush portion 180 in the upper portion, the lock button 152 in the lower one side to be separated and assembled with the lower body portion 110 ) Is installed, and the hook 154 is formed on one side of the upper portion to be coupled to the toothbrush portion 180.

The neck portion 150 is provided with the first and second swivel 160, 162 connected to the two transmission shafts (120, 122) to rotate together, one end of the swivel (160, 162) Polygonal rods 164 and 166 inserted into the polygonal grooves 144 and 146 of the latch portions 140 and 142 of the coaxial 120 and 122 are formed, and the first and second ends thereof are connected to the toothbrush portion 180. Second connection parts 170 and 172 are provided. Cylindrical grooves 174 and 176 are recessed in the connecting portions 168 and 170.

The toothbrush unit 180 is coupled to both sides of the toothbrush cores 182 and 184 twisted in a pretzel shape, the bristles 186 and 188 implanted into the toothbrush cores 182 and 184, and the toothbrush cores 182 and 184. It consists of a flexible toothbrush head 190.

The bristles 186 and 188 are not implanted at both ends of the toothbrush cores 182 and 184, and upper and lower bearings 192 and 194 are installed at both ends of the bristles 186 and 188 not implanted.

The toothbrush head 190 has a hook groove 196 formed to fix the hook 154 at the center thereof, the legs 198 extend in all directions, and bearings 192, 192, at the ends of the legs 198. 194 is inserted to form a bearing groove 200 which rotates. The lower bearings 192 and 194 are pressed into and fixed to the cylindrical grooves 174 and 176 of the connecting portions 170 and 172.

The toothbrush head 190 should be made of a silicone material having excellent elasticity, and the elastic limit at which the pair of toothbrushes 182 and 184 are opened is determined by the elasticity of the silicone. In addition, the toothbrush head 190 is to protect the mouth due to the soft silicone material. The toothbrush head is preferably shaped into an "H" shape to support both ends of the toothbrush cores 182 and 184.

The operation of the electric toothbrush according to the embodiment of the present invention is briefly described as follows.

First, because the lower portion of the neck 150 is connected to the body portion 110 by the lock button 152, and the upper portion of the neck 150 is coupled to the toothbrush portion 180 by the hook 154, The neck 150 and the toothbrush unit 180 are combined, and the lock button 152 is operated to install the neck unit 150 on the torso 110.

Holding the handle portion 110 and holding the switch 118 from the off state to the on state, the motor 114 is driven while the rotary shaft 116 of the motor 114 is rotated. The first gear 130 is fixed to the rotating shaft 116, the second gear 132 is meshed with the first gear 130, the first transmission shaft 120 to the second gear 132. ) Is installed in the third gear 134 is engaged, and since the fourth gear 136 is installed in the third gear 134, the gear assembly is integrally integrated. Thus, the first motor shaft 120 and the second motor shaft 122 are rotated at the same time in accordance with the rotation of the rotation shaft 116 of the motor 114.

In addition, first and second latch portions 140 and 142 may be installed at ends of the first and second transmission shafts 120 and 122, respectively, and the rotating table 160 may be provided at the latch portions 140 and 142. 162 is designed to insert one end of the transmission shaft (120, 122) and the rotating table (160, 162) can be arbitrarily separated and assembled, and the latch portion (140, 142) in the elongated polygonal groove ( 144 and 146 are dug, and since the rods 164 and 166 are formed at the ends of the rotary tables 160 and 162, the power of the transmission shafts 120 and 122 is transmitted to the rotary tables 160 and 162 as they are.

Since the first and second connection parts 170 and 172 are installed at the ends of the swivel parts 160 and 162, the swivel parts 160 and 162 are connected to the toothbrush part 180 through the connection parts 170 and 172. In more detail, cylindrical grooves 174 and 176 are recessed in the first and second connectors 170 and 172, and toothbrush cores 182 and 184 or lower bearing 194 in the cylindrical grooves 174 and 176. In order to be inserted and fixed, the toothbrush cores 182 and 184 into which the bristles 186 and 188 have been planted are rotated together with the rotation of the rotary tables 160 and 162.

When the teeth are inserted between the toothbrushes 182 and 184 extending radially, the bristles 186 and 188 are automatically brushed as shown in FIGS.

On the other hand, since the legs 198 of the flexible toothbrush head 190 are connected to both sides of the toothbrush cores 182 and 184, the toothbrush cores 182 and 84 are within the allowable range by the toothbrush head 190. Only the toothbrush, so even if the toothbrush 180 is pushed into the tooth, the bristles (186, 188) can protect the gums do not strain the gums.

In addition, since the upper and lower bearings 192 and 194 are provided in the bearing groove 200 of the leg 198 in which both ends of the toothbrush cores 182 and 184 are inserted and rotated, the toothbrush cores 182 and 184 It can rotate smoothly.

As described above, the present invention is capable of cleaning both sides of the tooth using a pair of rotating bristles, "H" shaped toothbrush that adjusts the distance between the bristle brushed toothbrushes within the allowable range The head is installed at both ends of the toothbrush core, it can be seen that the toothbrush head has a configuration that is manufactured by molding in a silicon material so that the toothbrush head is stretched and deformed within the allowable limits. Within the scope of the basic technical idea of the present invention, many other modifications will be possible to those skilled in the art.

As described above, according to the configuration of the present invention can be expected the following effects.

First, the toothbrush head supporting the toothbrush core from both sides is expected to have an effect that does not hurt the gum even when the tooth is inserted between the toothbrush core.

Second, the production process is shortened by simplifying the structure of the electric toothbrush, it is expected that the effect of the operation method is simplified by simplifying the operation method.

Third, by separating only the toothbrush bristles bristled with bristles, or by separating the swivel including the toothbrush from the transmission shaft, the effect of the bristle exchange is expected.

Claims (7)

A battery that supplies power, A motor driven by the battery, First and second motor shafts rotated by the motor, A body part including a gear assembly configured to receive power simultaneously by the two motor shafts by one motor rotation shaft; A toothbrush portion for brushing teeth while the pair of toothbrushes in which bristles are implanted is rotated by the power; A pair of swivels are provided between the pair of transmission shafts and the pair of toothbrushes, and the swivels transmit the rotational force of the transmission shafts to the toothbrush cores, thereby transferring the power of the motor to the distance between the toothbrush portions. Neck of a predetermined length regardless of transmission; Electric toothbrush, characterized in that configured to include. The method of claim 1, The gear assembly, A first gear fixed to the rotating shaft of the motor, a second gear meshed with the first gear, and a third gear provided at an end of the first transmission shaft and meshed with the second gear; And a fourth gear installed at an end of the second electric shaft and engaged with the third gear and interlocked with the third gear. The method of claim 2, First and second latch portions are further installed at end portions of the first and second transmission shafts so as to be detachably coupled to one end of the swivel, and the elongated polygonal grooves are recessed in the latch portions. An electric toothbrush, characterized in that the polygonal rod corresponding to the polygonal groove is formed at an end thereof so that the polygonal rod is inserted into the polygonal groove. The method of claim 1, The toothbrush core has a pretzel shape, wherein the bristles are planted by knots in the toothbrush core, the bristles extend radially around the toothbrush core. The method of claim 1, Both sides of the toothbrush core is connected to the elastic toothbrush head made of silicone for controlling the distance between the toothbrush core within the limit, the hook groove in which the hook of the neck is inserted in the center of the toothbrush head is molded and detached from the neck Electric toothbrush, characterized in that possible coupling. The method of claim 5, Upper and lower bearings are installed at both sides of the toothbrush core, and the toothbrush head extends in all directions to form an "H" shape, and at the end of the leg, the bearing groove is formed by inserting and rotating the bearing groove. Electric toothbrush characterized by. The method of claim 6, In order to connect with the toothbrush part, the other end of the swivel is provided with a first and a second connection part having a cylindrical groove, and the lower bearing is pressed into the cylindrical groove of the connection part at the other end of the swivel. Electric toothbrush characterized by.

Images