KR102632016B1 - Electric toothbrush apparatus - Google Patents

Abstract

The invention for an electric toothbrush device is disclosed. The electric toothbrush device of the present invention includes: a toothbrush body portion; A mouthpiece portion movably disposed on the toothbrush body portion, coupled to the side brush portion, and provided to be deformed inside the toothbrush body portion; A slider portion movably disposed on both sides of the mouthpiece portion and provided with a molar brush portion; and a driving part that moves at least one of the mouthpiece part and the slider part.

Description

Electric toothbrush device {ELECTRIC TOOTHBRUSH APPARATUS}

The present invention relates to an electric toothbrush device, and more specifically, to an electric toothbrush device that can cleanly brush teeth.

In general, an electric toothbrush is a device that automatically brushes teeth by driving a driving device. When you hold the handle of an electric toothbrush and bring the bristles into contact with your teeth, the bristles rotate and brush your teeth. At this time, the toothbrush bristles rotate to remove foreign substances attached to or caught in the teeth. However, conventionally, the toothbrush bristles rotate and rub against the teeth, so foreign substances between the teeth may not be cleaned cleanly.

The background technology of the present invention is disclosed in Republic of Korea Patent Publication No. 2012-0053619 (published on May 29, 2012, title of invention: electric toothbrush).

The present invention was created to improve the above problems, and the purpose of the present invention is to provide an electric toothbrush device that can cleanly brush teeth.

The electric toothbrush device according to the present invention includes: a toothbrush body portion; A mouthpiece portion movably disposed on the toothbrush body portion, coupled with a side brush portion, and provided to be deformed inside the toothbrush body portion; A slider portion movably disposed on both sides of the mouthpiece portion and provided with a molar brush portion; and a driving unit that moves at least one of the mouthpiece unit and the slider unit.

The mouthpiece portion may be coupled to the toothbrush body portion to move in the left and right direction.

The toothbrush body portion includes a connector portion coupled to both sides, a rotating shaft portion is formed in the connector portion, and both sides of the mouthpiece portion may be coupled to the rotating shaft portion to move along the rotating shaft portion.

Coupling grooves may be formed on both sides of the toothbrush body portion to allow the connector portion to be detachably inserted.

The slider portion may be coupled to both sides of the toothbrush body portion to be moved inside the toothbrush body portion.

The slider part includes a slider body part connected to the driving part; and a slider wing portion provided with the molar brush portion and relatively movably coupled to the slider body portion on both sides of the slider body portion.

Flow-permitting portions are formed on both sides of the toothbrush body portion, and both sides of the slider portion may be coupled to the flow-permitting portion so as to be able to move from the flow-permitting portion to the inside of the toothbrush body portion.

The slider part includes a slider body part connected to the driving part; and a slider wing portion formed on both sides of the slider body portion, provided with the molar brush portion, and movably coupled to the movement allowance portion of the toothbrush body portion.

The slider wing portion may be formed in parallel on both sides of the slider body portion, may include the molar brush portion, and may include a pair of wing panel portions spaced apart from each other so that the connector portion of the toothbrush body portion is inserted.

A flow shaft portion may be formed between the wing panel portions, and the flow allowance portion may be formed in the connector portion to allow the flow shaft portion to flow in forward and backward and left and right directions.

The slider body portion and the slider wing portion may be moved forward and backward by the driving unit, and the slider wing portion may be moved left and right together with both sides of the mouthpiece portion.

The toothbrush body portion includes an electric unit provided with the driving unit; And it may include a fixing frame that is coupled to the electric unit, extends on both sides so that the mouthpiece part is coupled, and has a guide part formed to guide the mouthpiece part to prevent the mouthpiece part from being separated.

The driving unit includes a geared motor unit disposed in the electrical equipment unit; an eccentric shaft portion connected to the geared motor portion and connected to the mouthpiece portion to move the mouthpiece portion in an upward and downward direction when the geared motor portion is driven; and a movable link part that is link-coupled with the mouthpiece part and the slider part and moves the slider part in a forward and backward direction as the mouthpiece part moves in an up and down direction.

The movable link portion is rotatably coupled to the mouthpiece portion, and the rolling portion is rotatably coupled to the fixed frame to perform a rolling movement as the mouthpiece portion moves in an upward and downward direction. And it may include a link member that is linked to the rolling part and the slider part and moves the slider part in a forward and backward direction as the rolling part rolls.

The rolling unit includes a rolling bar that is rollably coupled to the fixed frame; a joint portion that protrudes from an outer surface of the rolling bar, is rotatably coupled to the mouthpiece portion, and rolls the rolling bar as the mouthpiece portion rotates; and a pusher portion that is formed to protrude from the outer surface of the rolling bar, is link-coupled with the link member, and moves the link member forward and backward as the rolling bar rotates.

The geared motor unit includes a pair of motors disposed in the electrical equipment unit; A pair of drive gears respectively connected to the motor and arranged to be spaced apart from each other; And it may include a driven gear meshed with a pair of the driving gears and connected to the eccentric shaft portion.

The mouthpiece part is disposed inside the fixed frame, and includes a first mouthpiece part formed with a first connection part having a long hole so that the eccentric shaft part is coupled thereto; and a second mouthpiece portion disposed inside the first mouthpiece portion and having a second connection portion formed to connect the first connection portion and the movable link portion.

The electrical equipment unit includes a first circuit board disposed on a bottom surface of the electrical equipment unit and controlling the driving unit; And it may further include a second circuit board built on a side wall of the electrical unit and connected to the first circuit board.

The electrical equipment unit may further include a battery unit disposed on an opposite side of the electrical equipment unit from the second circuit board.

In the present invention, the mouthpiece portion is provided to be deformed inside the toothbrush body portion, so the mouthpiece portion can be gathered or spread out depending on the thickness of the user's dentition or molars. Therefore, in the present invention, since the side brush parts are in close contact with both sides of the teeth, the teeth can be brushed cleanly even if the teeth are slightly different depending on the consumer.

Additionally, in the present invention, since the slider portion is provided to be movable inside the toothbrush body portion, the molar brush portion can be moved according to the consumer's teeth. Therefore, since the lower side of the upper molars and the upper side of the lower molars are entirely in close contact with the molar brush unit, the upper and lower sides of the molars can be cleanly brushed by the molar brush unit.

Additionally, in the present invention, the driving gears are each connected to a pair of motors, and the driven gear engages and rotates the pair of driving gears, so the rotational torque of the driven gear can be increased. In addition, since a pair of driving gears support both sides of the driven gear, the axial direction of the driven gear can be prevented from being twisted to one side, and the driven gear can be prevented from being pushed to one side by the driving force of the driving gear.

Figure 1 is a perspective view showing an electric toothbrush device according to an embodiment of the present invention.
Figure 2 is a perspective view showing a state in which the charging holder is separated from the electric toothbrush device according to an embodiment of the present invention.
Figure 3 is an exploded perspective view showing an electric toothbrush device according to an embodiment of the present invention.
Figure 4 is an exploded perspective view of the electric toothbrush device according to an embodiment of the present invention as seen from a direction different from that of Figure 3.
Figure 5 is a perspective view showing a state in which the mouthpiece part is deformed in the electric toothbrush device according to an embodiment of the present invention.
Figure 6 is a plan view showing a state in which the mouthpiece portion is deformed in the electric toothbrush device according to an embodiment of the present invention.
Figure 7 is an exploded perspective view showing part of the electric toothbrush device according to an embodiment of the present invention.
Figure 8 is a perspective view showing an example in which the slider wing portion is movably coupled to the connector portion in the electric toothbrush device according to an embodiment of the present invention.
Figure 9 is a perspective view showing another example in which the slider wing portion is movably coupled to the connector portion in the electric toothbrush device according to an embodiment of the present invention.
Figure 10 is a perspective view showing the structure of the slider portion and the connector portion in the electric toothbrush device according to an embodiment of the present invention.
Figure 11 is a perspective view showing a slider wing portion and a connector portion in an electric toothbrush device according to an embodiment of the present invention.
Figure 12 is a cross-sectional perspective view showing an electric toothbrush device according to an embodiment of the present invention.
Figure 13 is a cross-sectional view showing an electric toothbrush device according to an embodiment of the present invention.
Figure 14 is a cross-sectional view showing the mouthpiece portion raised to the highest position in the electric toothbrush device according to an embodiment of the present invention.
Figure 15 is a plan view showing a state in which the slider wing portion is pulled out when the mouthpiece portion is raised to the highest position in the electric toothbrush device according to an embodiment of the present invention.
Figure 16 is a cross-sectional view showing a state in which the mouthpiece part is lowered to the middle position in the electric toothbrush device according to an embodiment of the present invention.
Figure 17 is a plan view showing a state in which the slider wing portion is retracted when the mouthpiece portion is lowered to the middle position in the electric toothbrush device according to an embodiment of the present invention.
Figure 18 is a cross-sectional view showing a state in which the mouthpiece part is lowered to the lowest position in the electric toothbrush device according to an embodiment of the present invention.
Figure 19 is a plan view showing a state in which the slider wing portion is retracted when the mouthpiece portion is lowered to the lowest position in the electric toothbrush device according to an embodiment of the present invention.

Hereinafter, an embodiment of an electric toothbrush device according to the present invention will be described with reference to the attached drawings. In the process of explaining the electric toothbrush device according to this embodiment, the thickness of lines or sizes of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

Figure 1 is a perspective view showing an electric toothbrush device according to an embodiment of the present invention, Figure 2 is a perspective view showing a state in which the charging holder is separated from the electric toothbrush device according to an embodiment of the present invention, and Figure 3 is a It is an exploded perspective view showing an electric toothbrush device according to an embodiment of the present invention, and Figure 4 is an exploded perspective view of the electric toothbrush device according to an embodiment of the present invention viewed from a direction different from that of Figure 3.

Referring to Figures 1 to 4, the electric toothbrush device according to an embodiment of the present invention includes a toothbrush body part 110, a mouthpiece part 120, a slider part 140, and a driving part 150.

The toothbrush body portion 110 may be seated on the charging holder 10. The charging stand 10 includes a charging case 11, an electrical connection portion 13 provided inside the charging case 11, and a coil support plate portion (not shown) provided on the upper surface of the charging case 11. . A seating portion 15 is formed in the charging case 11 to seat the toothbrush body 110.

The toothbrush body portion 110 includes an electrical portion 111, a fixed frame 113, and a connector portion 116.

The electric unit 111 is provided with a driving unit 150. The electric unit 111 can be held by the user with his or her hand, and depending on the user, it can also be used as a handle when brushing teeth. The electrical unit 111 is provided with a button unit 111a to drive or stop the driving unit 150. The driving speed of the driving unit 150 may be adjusted depending on the number of times the button unit 111a is pressed. Additionally, the electrical unit 111 may be provided with a display unit 111b that informs the outside of the driving state of the driving unit 150. As an example, an LED may be applied to the display unit 111b.

The fixing frame 113 is coupled to the front length portion 111 and extends on both sides so that the mouthpiece portion 120 is coupled thereto. The fixing frame 113 is formed overall in a “∪” shape to fit between teeth. Both sides of the fixing frame 113 become gradually thinner toward the ends so that it can be easily inserted into the oral cavity. Guide portions 114 are formed on both sides of the fixed frame 113, respectively. The guide portion 114 includes a first guide rib 114a that restrains the outside of the first mouthpiece portion 121 to prevent the first mouthpiece portion 121 from being separated to the outside, and a second mouthpiece portion ( 125) includes a second guide rib 114b that restrains the inside of the second mouthpiece portion 125 to prevent it from coming off inward.

The connector portion 116 is detachably coupled to the coupling groove portion 115 of the fixed frame 113. Coupling grooves 115 are formed on both sides of the connector portion 116. The connector portion 116 may be formed integrally with both ends of the fixed frame 113. A rotation axis portion 117 is formed in the connector portion 116 so that the mouthpiece portion 120 is rotatably coupled thereto. Since the connector portion 116 is disposed on both sides of the toothbrush body portion 110, in this embodiment, both sides of the toothbrush body portion 110 represent the connector portion 116. This connector portion 116 will be described in detail below.

The mouthpiece unit 120 includes a first mouthpiece unit 121 and a second mouthpiece unit 125. The first mouthpiece part 121 is disposed inside the fixing frame 113, and a first connection part 122 is formed with a long hole 122a so that the eccentric shaft part 155 is coupled thereto. The first mouthpiece portion 121 is formed in an approximately “∩” shape to surround the front side of the teeth. The first mouthpiece portion 121 includes a first upper mouthpiece portion 121a surrounding the front side of the upper teeth, and a first lower mouthpiece portion 121b surrounding the front side of the lower teeth. The first upper mouthpiece portion 121a and the first lower mouthpiece portion 121b are formed in a form where the gap decreases toward the opposite side of the front length portion 111. Accordingly, the first upper mouthpiece portion 121a and the first lower mouthpiece portion 121b can be easily inserted into the oral cavity.

The end side (rear side) of the first upper mouthpiece portion 121a and the first lower mouthpiece portion 121b are connected to each other, and the first upper mouthpiece portion 121a and the first lower mouthpiece portion 121b are connected to each other. The front section 111 side (front side) is connected to each other by the first connection portion 122. Since the first upper mouthpiece part 121a and the first lower mouthpiece part 121b are connected by the first connection part 122, they move simultaneously in the up and down directions.

A first rotation hole 123 is formed at the ends of the first upper mouthpiece 121a and the first lower mouthpiece 121b to allow the rotation axis portion 117 of the connector portion 116 to pass through. The first rotation hole 123 is formed with one side open so that the first rotation shaft 117a can be inserted.

A first slot 124 is formed in the first mouthpiece unit 121 so that the side brush unit 133 is detachably coupled thereto. The first slot 124 is formed along the longitudinal direction of the first mouthpiece portion 121. The first slot 124 includes a first upper slot 124a formed in the first upper mouthpiece part 121a and a first lower slot 124b formed in the first lower mouthpiece part 121b. . The first upper slot 124a and the first lower slot 124b are formed as one long section or divided into a plurality of sections.

The second mouthpiece unit 125 is disposed inside the first mouthpiece unit 121, and a second connection unit 126 is formed to connect the first connection unit 122 and the moving link unit 156. The second mouthpiece portion 125 is formed in an approximately “∩” shape to surround the rear side of the teeth. The first connection part 122 and the second connection part 126 are detachably coupled. Since the first connection part 122 and the second connection part 126 are connected to each other, when the eccentric shaft part 155 rotates, the first mouthpiece part 121 and the second mouthpiece part 125 move simultaneously in the vertical direction. .

The second mouthpiece portion 125 includes a second upper mouthpiece portion 125a surrounding the rear side of the upper teeth, and a second lower mouthpiece portion 125b surrounding the rear side of the lower teeth. The second upper mouthpiece portion 125a and the second lower mouthpiece portion 125b are formed in a form where the gap decreases toward the opposite side of the front length portion 111. Therefore, the second upper mouthpiece portion 125a and the second lower mouthpiece portion 125b can be easily inserted into the oral cavity.

The end side (rear side) of the second upper mouthpiece portion 125a and the second lower mouthpiece portion 125b are connected to each other, and the second upper mouthpiece portion 125a and the second lower mouthpiece portion 125b are connected to each other. The front section 111 side (front side) is connected to each other by the second connection portion 126. Since the second upper mouthpiece portion 125a and the second lower mouthpiece portion 125b are connected by the second connection portion 126, they move simultaneously in the up and down directions.

A second rotation hole portion 127 is formed at the ends of the second upper mouthpiece portion 125a and the second lower mouthpiece portion 125b to allow the rotation shaft portion 117 of the connector portion 116 to pass through. The second rotation hole portion 127 is formed in the shape of a long hole so that the second rotation shaft portion 117b can be moved forward and backward. Since the second rotation hole portion 127 is formed in a long hole shape, the second mouthpiece portion 125 is not restricted by the second rotation shaft portion 117b when it moves inside the toothbrush body portion 110.

A second slot 128 is formed in the second mouthpiece unit 125 so that the side brush unit 133 can be detachably coupled thereto. The second slot 128 is formed along the longitudinal direction of the second mouthpiece portion 125. The second slot 128 includes a second upper slot 128a formed in the second upper mouthpiece portion 125a and a second lower slot 128b formed in the second lower mouthpiece portion 125b. . The second upper slot 128a and the second lower slot 128b are formed as one long section or divided into a plurality of sections.

Additionally, the side brush unit 133 is detachably coupled to the first slot 124 of the first mouthpiece unit 121 and the second slot 128 of the second mouthpiece unit 125. The side brush unit 133 includes a brush body 131 in contact with the first mouthpiece unit 121 or the second mouthpiece unit 125, a brush 132 fixed to the brush body 131, and a brush body. It is formed to protrude from 131 and includes a fastening rib 133 that is removably inserted into the first slot 124 or the second slot 128. Since the fastening rib 133 is detachably provided in the first slot 124 and the second slot 128, the side brush unit 133 is connected to the first mouthpiece unit 121 and the second mouthpiece unit 125. It can be easily replaced. The side brush portion 133 may be formed of a synthetic resin material such as silicone.

Figure 5 is a perspective view showing a state in which the mouthpiece part is deformed in the electric toothbrush device according to an embodiment of the present invention, and Figure 6 shows a state in which the mouthpiece part is deformed in the electric toothbrush device according to an embodiment of the present invention. It is a floor plan.

Referring to Figures 5 and 6, the mouthpiece part 120 is arranged to be movable in the vertical direction on the toothbrush body part 110, the side brush part 133 is coupled, and the inside of the toothbrush body part 110 It is provided to be transformed into. Since the mouthpiece portion 120 is provided to be gathered or spread apart inside the toothbrush body portion 110, the mouthpiece portion 120 can be gathered or spread depending on the thickness of the user's dentition or molars. Therefore, since the side brush portions 133 are in close contact with both sides of the teeth, the teeth can be brushed cleanly even if the teeth are slightly different depending on the consumer.

The structure in which the mouthpiece unit 120 is provided to be gathered or spread apart inside the toothbrush body unit 110 will be described in detail below.

Both sides of the mouthpiece unit 120 are coupled to the toothbrush body unit 110 so as to move in the left and right directions. For example, a rotation axis portion 117 is formed on both sides of the toothbrush body portion 110 (connector portion 116) to form the rotation center of the mouthpiece portion 120, and both sides of the mouthpiece portion 120 are It may be coupled to the rotation axis portion 117 so as to move along the rotation axis portion 117 of the mouthpiece portion 120.

Since both sides of the mouthpiece unit 120 can be moved in the left and right directions depending on the shape of the row of teeth or the thickness of the molars, the side brush units 133 can be in close contact with both sides of the row of teeth. Therefore, even if the teeth are slightly different depending on the consumer, the teeth can be brushed cleanly. For another example, the mouthpiece unit 120 is formed of a flexible material such as silicone, rubber, urethane, etc., and is attached to one side of the toothbrush body unit 110 so that both sides of the mouthpiece unit 120 move in the left and right directions. Can be loosely coupled. The structure in which both sides of the mouthpiece unit 120 are moved in the left and right directions can be changed in various ways.

Connector portions 116 are coupled to both sides of the toothbrush body portion 110, and a rotating shaft portion 117 is formed on the connector portion 116. At this time, the rotation shaft portion 117 includes a first rotation shaft portion (117a) and a second rotation shaft portion (117b). The first rotation shaft portion 117a is formed along the left and right directions on the outside of the connector portion 116, and the first rotation shaft portion 117a is inserted into the first rotation hole portion 123 of the first mouthpiece portion 121. . The first rotation hole 123 is formed with one side open so that the first rotation shaft 123 can be inserted. The second rotation shaft portion 117b is formed along the left and right directions inside the connector portion 116, and the second rotation shaft portion 117b is inserted into the second rotation hole portion 127 of the second mouthpiece portion 125. . The second rotation hole portion 127 is formed in the shape of a long hole parallel to the front-to-back direction of the second mouthpiece portion 125. The end side of the first mouthpiece portion 121 may be moved along the first rotation shaft portion 117a, and the end side of the second mouthpiece portion 125 may be moved along the second rotation shaft portion 117b. Since the end side of the first mouthpiece part 121 and the end side of the second mouthpiece part 125 are moved in the left and right directions of the toothbrush body part 110, the side brush part 133 will be in close contact with both sides of the teeth. You can. Therefore, teeth can be brushed cleanly even if the dentition is slightly different depending on the consumer.

The slider portion 140 is coupled to both sides of the toothbrush body portion 110 so as to be moved to the inside of the toothbrush body portion 110. Since the slider portion 140 moves inside the toothbrush body portion 110, the molar brush portion 135 may be moved according to the consumer's teeth. Therefore, since the lower side of the upper molars and the upper side of the lower molars are in close contact with the molar brush unit 135, the upper and lower sides of the molars can be cleanly brushed by the molar brush unit 135.

An example in which the slider unit 140 according to the present invention is moved inside the toothbrush body unit 110 will be described as follows.

Figure 7 is an exploded perspective view showing part of the electric toothbrush device according to an embodiment of the present invention, and Figure 8 is an exploded perspective view showing a portion of the electric toothbrush device according to an embodiment of the present invention, where the slider wing portion is movably coupled to the connector portion. This is a perspective view showing an example of what happens.

7 and 8, the slider unit 140 includes a slider body unit 141 connected to the link member 159 of the movable link unit 156, and slider body units on both sides of the slider body unit 141. It includes a slider wing portion 143 that is relatively movably coupled to (141).

Slider hole portions 148 are formed on both sides of the slider body portion 141, and a slider protrusion portion 147 is formed on the slider wing portion 143 to be movably inserted into the slider hole portion 148. Additionally, slider protrusions 147 may be formed on both sides of the slider body 141, and a slider hole 148 may be formed in the slider wing 143 so that the slider protrusions 147 can be movably inserted.

The slider body portion 141 includes a link connection portion 141a to which the movable link portion 156 is connected, and a slider tube 141b connected to the link connection portion 141a and on which the slider hole portion 148 is formed. The slider tube 141b is formed parallel to the left and right directions of the toothbrush body 110. The longitudinal cross-section of the slider tube 141b may be formed in a polygonal or circular shape.

The slider protrusion 147 includes a first slider protrusion 147a extending from the wing panel portion 143a, and a second slider protrusion 147a extending from the first slider protrusion 147a and having a thickness thinner than the first slider protrusion 147a. Includes a slider protrusion 147b. The longitudinal cross-sections of the first slider protrusion 147a and the second slider protrusion 147b may be formed in a polygonal or circular shape. When the longitudinal cross-sections of the first slider protrusion 147a and the second slider protrusion 147b are formed in a polygonal shape, the slider wing portion 143 can be prevented from rolling or rotating around the slider protrusion 147. .

The slider body portion 141 is connected to the movable link portion 156, and the slider wing portion 143 is connected to the fixed frame 113 via the connector portion 116, so the slider protrusion 147 is connected to the slider hole portion 148. ) will not be left out.

Since the slider protrusion 147 is movably inserted into the slider hole 148, the slider wing 143 can be slightly moved left and right depending on the shape of the teeth or the size of the molars. Accordingly, as the slider wing portion 143 moves in the left and right directions of the mouthpiece portion 120, the molar brush portion 135 may be in overall contact with the upper and lower sides of the molars.

The structure in which the slider wing portion 143 is movably coupled to the slider body portion 141 may be changed in various ways.

Another example in which the slider unit 140 according to the present invention is moved inside the toothbrush body unit 110 will be described as follows.

Figure 9 is a perspective view showing another example in which the slider wing portion is movably coupled to the connector portion in the electric toothbrush device according to an embodiment of the present invention, and Figure 10 is a slider wing portion in the electric toothbrush device according to an embodiment of the present invention. It is a perspective view showing the structure of the part and the connector part, and Figure 11 is a perspective view showing the slider wing part and the connector part in the electric toothbrush device according to an embodiment of the present invention.

Referring to FIGS. 9 to 11, a flow-permitting portion 118 is formed in the connector portions 116 on both sides of the toothbrush body portion 110, and both sides of the slider portion 140 are connected to the toothbrush in the flow-permitting portion 118. It is coupled to the flow allowance portion 118 so as to be able to move inside the body portion 110. At this time, flow shaft portions 144 are formed on both sides of the slider portion 140, and the connector portion 116 is provided with a flow-permitting portion 118 such as a hole so that the fluid shaft portion 144 can flow in the left-right and forward-forward directions. is formed. The flow-permitting portion 118 may be formed in various forms as long as the flow shaft portion 144 can flow in the left-right and forward-backward directions. Since the flow shaft portion 144 is coupled to the flow allowance portion 118, both sides of the slider portion 140 can be prevented from being separated from the connector portion 116.

The slider portion 140 includes a slider body portion 141 and a slider wing portion 143.

The slider body portion 141 includes a link connection portion 141a to which the movable link portion 156 is connected, and a slider tube 141b connected to the link connection portion 141a and on which the slider hole portion 148 is formed. The slider tube 141b is formed parallel to the left and right directions of the toothbrush body 110. The longitudinal cross-section of the slider tube 141b may be formed in a polygonal or circular shape.

The slider protrusion 147 includes a first slider protrusion 147a extending from the wing panel portion 143a, and a second slider protrusion 147a extending from the first slider protrusion 147a and having a thickness thinner than the first slider protrusion 147a. Includes a slider protrusion 147b. The longitudinal cross-sections of the first slider protrusion 147a and the second slider protrusion 147b may be formed in a polygonal or circular shape. When the longitudinal cross-sections of the first slider protrusion 147a and the second slider protrusion 147b are formed in a polygonal shape, the slider wing portion 143 can be prevented from rolling or rotating around the slider protrusion 147.

The slider body part 141 is connected to the driving part 150. A link hole portion (not shown) is formed on the link connection portion 141 of the slider body portion 141 to be linked to the link member 159 of the drive unit 150, and the link hole portion has one side formed on the link member 159. The link hinge portion 159a is rotatably coupled. The link member 159 is coupled to the center of the slider body portion 141.

The slider wing portion 143 is formed on both sides of the slider body portion 141, is provided with a molar brush portion 135, and is movably coupled to both sides of the toothbrush body portion 110. Since the slider wing portion 143 is movably coupled to both sides of the toothbrush body portion 110, the molar brush portion 135 can be in overall contact with the upper and lower sides of the molars. At this time, when brushing teeth, the connector portion 116 supports the slider wing portion 143 and serves to bring the molar brush portion 135 into close contact with the molars.

A removable hole 145 is formed in the slider wing 143 so that the molar brush 135 can be detachably coupled thereto. A hook portion (not shown) is formed on the lower side of the molar brush portion 135 to be detachably coupled to the detachable hole portion 145. The detachable structures of the slider wing portion 143 and the molar brush portion 135 may be formed in various ways.

The slider wing portion 143 is slightly moved in the left and right directions according to the shape of the teeth or the size of the molars, and is slightly moved in the forward and backward direction by the preset toothbrushing stroke. At this time, the left-right movement distance of the slider wing portion 143 is relatively shorter than the front-back movement distance.

A flow shaft portion 144 is formed between the wing panel portions 143a, and a flow allowance portion 118 is formed in the connector portion 116 to allow the flow shaft portion 144 to flow in the forward and backward and left and right directions. The flow shaft portion 144 is formed to cross the pair of wing panel portions 143a, and the flow allowance portion 118 is formed to have a size equivalent to the flow allowance range of the flow shaft portion 144.

The slider body part 141 and the slider wing part 143 are moved forward and backward by the driving part 150, and the slider wing part 143 is moved in the left and right direction together with both sides of the mouthpiece part 120. When the slider wing portion 143 is moved in the left and right direction, both sides of the slider body portion 141 may contract and expand slightly. As the slider body portion 141 and the slider wing portion 143 move forward and backward, the upper and lower sides of the molars are brushed. As the slider wing portion 143 moves in the left and right directions together with both sides of the mouthpiece portion 120, the molar brush portion 135 can entirely contact the upper and lower sides of the molars.

Figure 7 is an exploded perspective view showing part of the electric toothbrush device according to an embodiment of the present invention, Figure 12 is a cross-sectional perspective view showing the electric toothbrush device according to an embodiment of the present invention, and Figure 13 is the present invention. This is a cross-sectional view showing an electric toothbrush device according to an embodiment of the invention.

Referring to FIGS. 7, 12, and 13, the driving unit 150 includes a geared motor unit 151, an eccentric shaft unit 155, and a moving link unit 156.

The geared motor unit 151 is disposed in the electrical unit 111. The eccentric shaft unit 155 is connected to the geared motor unit 151 and is connected to the mouthpiece unit 120 to move the mouthpiece unit 120 in the up and down direction when the geared motor unit 151 is driven. The movable link unit 156 is link-coupled with the mouthpiece unit 120 and the slider unit 140, and moves the slider unit 140 forward and backward as the mouthpiece unit 120 moves up and down. Since the eccentric shaft portion 155 moves the mouthpiece portion 120 up and down, the inside and outside of the teeth can be brushed by the mouthpiece portion 120. In addition, as the mouthpiece unit 120 moves up and down, the moving link unit 156 moves the slider unit 140 forward and backward, so that the molars are attached to the molar brush unit 135 provided on the slider unit 140. Can be brushed.

The geared motor unit 151 includes a pair of motors 151a, a pair of driving gears 152, and a driven gear 153.

A pair of motors 151a are disposed in the electrical unit 111. Drive shafts (not shown) of the pair of motors 151a are arranged in parallel. A pair of drive gears 152 are respectively connected to the drive shaft of the motor 151a and are arranged to be spaced apart from each other. The driven gear 153 is meshed with a pair of driving gears 152 and connected to the eccentric shaft portion 155. The driven gear 153 is disposed between the driving gears 152. A pair of drive gears 152 rotate in opposite directions.

A pair of motors 151a rotates a pair of driving gears 152 simultaneously, and the driven gear 153 engages and rotates the pair of driving gears 152, so the rotational torque of the driven gear 153 increases. It can be. As the rotational torque of the driven gear 153 increases, the vertical torque of the mouthpiece unit 120 and the forward-backward torque of the slider unit 140 can be increased. Therefore, the side brush unit 133 and the molar brush unit 135 can brush teeth with the driving force required for tooth brushing.

In addition, since the pair of drive gears 152 support both sides of the driven gear 153, the axial direction of the driven gear 153 can be prevented from being twisted to one side. In addition, since the driven gear 153 can be prevented from being pushed to one side by the driving force of the driving gear 152, the driving torque of the driven gear 153 can be prevented from being reduced.

The eccentric shaft unit 155 is connected to the geared motor unit 151 and is connected to the mouthpiece unit 120 to move the mouthpiece unit 120 in the up and down direction when the geared motor unit 151 is driven. The eccentric shaft portion 155 is formed eccentrically in the eccentric body portion 155a connected to the driven gear 153 of the geared motor portion 151, and the long hole portion of the mouthpiece portion 120. It includes an eccentric rod (155b) coupled to (122a). Since the eccentric rod (155b) is coupled to the long hole (122a) of the first mouthpiece portion (121), when the eccentric body portion (155a) rotates, the eccentric rod (155b) moves to the long hole portion (122a) of the first mouthpiece portion (121). As the mouthpiece portion 120 moves left and right at 122a, it moves up and down.

The movable link unit 156 is link-coupled with the mouthpiece unit 120 and the slider unit 140, and moves the slider unit 140 forward and backward as the mouthpiece unit 120 moves up and down. Accordingly, the front and back sides of the teeth and the upper and lower sides of the molars can be brushed by the mouthpiece portion 120 and the slider portion 140.

The movable link part 156 includes a rolling part 157 and a link member 159.

The rolling portion 157 is rotatably coupled to the mouthpiece portion 120 and is rotatably coupled to the fixed frame 113 to perform a rolling movement as the mouthpiece portion 120 moves in the up and down directions.

The rolling part 157 includes a rolling bar 157a, a joint part 157b, and a pusher part 157c. The rolling bar 157a is coupled to the fixed frame 113 so that both sides can roll. The joint portion 157b is formed to protrude from the outer surface of the rolling bar 157a, is rotatably coupled to the mouthpiece portion 120, and rolls the rolling bar 157a as the mouthpiece portion 120 rotates. Exercise. The pusher portion 157c is formed to protrude from the outer surface of the rolling bar 157a, is link-coupled with the link member 159, and moves the link member 159 forward and backward as the rolling bar 157a rotates. . The joint portion 157b and the pusher portion 157c are formed at a certain angle with respect to the axial center of the rolling bar 157a.

The length of the joint portion 157b and the length of the pusher portion 157c must be appropriately determined in consideration of the forward and backward movement distance of the link member 159 during the rolling movement of the rolling bar 157a. For example, when the length of the joint portion 157b is formed to be relatively long, the rotation angle of the rolling bar 157a becomes relatively small when the mouthpiece portion 120 moves in the vertical direction, so that the front and rear of the link member 159 Directional movement distance is relatively reduced. In addition, when the length of the pusher portion 157c is formed to be relatively long, the rotational trajectory of the end of the pusher portion 157c becomes relatively long when the mouthpiece portion 120 moves in the vertical direction, so that the front and rear of the link member 159 Directional movement distance is relatively increased.

The link member 159 is linked to the rolling part 157 and the slider part 140, and moves the slider part 140 forward and backward as the rolling part 157 rolls. Since the slider unit 140 moves forward and backward as the rolling unit 157 rolls, the molar brush unit 135 provided on the slider unit 140 can brush the upper and lower sides of the molars. Link hinge portions 159a are formed on both sides of the link member 159 to be hinged to the pusher portion 157c and the slider body portion 141.

The electrical equipment unit 111 is disposed on the bottom surface of the electrical equipment unit 111, includes a first circuit board 161 that controls the driving unit 150, and is built on the side wall of the electrical equipment unit 111, and includes a first circuit board ( It further includes a second circuit board 162 connected to 161). The first circuit board 161 controls a pair of motors 151a, and the second circuit board 162 controls the motor 151a of the driving unit 150. Since the first circuit board 161 is placed on the bottom surface of the electrical equipment unit 111 and the second circuit board 162 is built on the side wall of the electrical equipment unit 111, the space provided in the electrical equipment unit 111 is efficiently used. You can utilize it. Accordingly, the size of the electrical portion 111 can be reduced.

The electrical equipment unit 111 further includes a battery unit 171 disposed on the opposite side of the electrical equipment unit 111 from the second circuit board 162 . Since the battery unit 171 is provided on the opposite side of the second circuit board 162 in the electrical equipment unit 111, a pair of motors 151a can be placed on the center side of the electrical equipment unit 111. Accordingly, the driven gear 153 can transmit the driving torque from the center of the electric unit 111 to the center side in the width direction of the mouthpiece unit 120.

The electrical equipment unit 111 further includes a charging coil unit 173 disposed on the lower side of the first circuit board 161 to charge the battery unit 171 from outside the electrical equipment unit 111. The charging coil unit 173 may be formed in a disk shape. Since the charging coil portion 173 is disposed below the electrical portion 111, the thickness of the electrical portion 111 can be reduced. Additionally, since the area of the electrical unit 111 facing the charging device can be increased, charging efficiency can be increased.

The operation of the electric toothbrush device according to an embodiment of the present invention configured as described above will be described.

Figure 14 is a cross-sectional view showing the mouthpiece portion raised to the highest position in the electric toothbrush device according to an embodiment of the present invention, and Figure 15 is a cross-sectional view showing the mouthpiece portion raised to the highest position in the electric toothbrush device according to an embodiment of the present invention. This is a plan view showing the state in which the slider wing portion is pulled out when raised to a high position.

Referring to Figures 14 and 15, hold the front length part 111 of the toothbrush body part 110, open the mouth, and then insert the mouthpiece part 120 into the oral cavity. Since the mouthpiece portion 120 is formed to decrease in height toward the opposite side of the front length portion 111, the mouthpiece portion 120 is smoothly inserted into the oral cavity.

When the user closes the mouth, the teeth are positioned between the first mouthpiece portion 121 and the second mouthpiece portion 125. The first mouthpiece unit 121 surrounds the front side of the row of teeth, and the second mouthpiece unit 125 is arranged to surround the rear side of the row of rows. The fixing frame 113 is disposed between the upper and lower teeth, and the connector portion 116 is disposed between the upper and lower molars. At this time, the side brush portion 133 is in contact with the front and rear sides of the teeth, and the molar brush portion 135 disposed on both sides of the connector portion 116 is in contact with the upper and lower sides of the molars.

When the row of teeth is located between the first mouthpiece unit 121 and the second mouthpiece unit 125, the mouthpiece unit 120 is elastically deformed to match the shape of the row of rows and the thickness of the molars. In more detail, it is explained as follows.

When the teeth are wide open or the molars are thick, the end side of the first mouthpiece 121 is moved outward in the left and right directions along the first rotation axis 117a, and the second mouthpiece 125 ) The end side is also moved outward in the left and right directions along the second rotation shaft portion 117b. At this time, the first mouthpiece portion 121 and the second mouthpiece are spread outward.

In addition, when the row of teeth is relatively small or the width of the molars is relatively small, the end side of the first mouthpiece unit 121 is moved inward in the left and right directions along the first rotation axis unit 117a, and The end side of the second mouthpiece unit 125 is also moved inward in the left and right directions along the second rotation axis unit 117b. At this time, the first mouthpiece portion 121 and the second mouthpiece portion 125 are retracted inward.

Additionally, depending on the shape of the teeth or the size of the molars, only one of the first mouthpiece unit 121 and the second mouthpiece unit 125 may be moved along the left and right directions.

In this way, the spacing and shape of the first mouthpiece part 121 and the second mouthpiece part 125 can be changed to suit the shape of the user's teeth or the thickness of the molars, so the side brush part 133 and the side brush part (133) can be in close contact with the front and rear sides of the teeth. Therefore, teeth can be brushed cleanly even if the dentition is slightly different depending on the consumer.

When the user operates the button unit 111a of the electrical equipment unit 111, the driving unit 150 provided inside the electrical equipment unit 111 is driven. As the driving unit 150 is driven, the geared motor unit 151, the eccentric shaft unit 155, and the moving link unit 156 operate. We will explain this in detail.

As the pair of motors 151a constituting the geared motor unit 151 are driven, the pair of drive gears 152 rotate simultaneously. The driven gear 153 is rotated in engagement with a pair of driving gears 152. As the pair of drive gears 152 engage and rotate with the driven gear 153, the eccentric shaft portion 155 rotates. At this time, as the eccentric body portion 155a rotates, the eccentric rod 155b rotates eccentrically with respect to the rotation center of the driven gear 153. The vertical height of the front length portion 111 of the mouthpiece portion 120 changes depending on the position of the eccentric rod 155b in the eccentric shaft portion 155.

First, when the eccentric rod (155b) is raised to the highest position (H1) (see FIGS. 14 and 15), the eccentric rod (155b) is located at the center of the long hole (122a) of the first connection portion (122). At this time, the first mouthpiece unit 121 and the second mouthpiece unit 125 are rotated upwardly about the first rotation shaft portion 117a and the second rotation shaft portion 117b of the connector portion 116 as a whole. In addition, the front length portion 111 side of the first mouthpiece portion 121 and the second mouthpiece portion 125 is raised to the highest position H1 in the fixing frame 113. As the first mouthpiece unit 121 and the second mouthpiece unit 125 rotate upward, the side brush unit 133 and the side brush unit 133 move upward to brush the teeth.

When the front length part 111 side of the first mouthpiece part 121 and the second mouthpiece part 125 is raised, the joint part 157b of the rolling part 157 is rotated upward. At this time, since both sides of the rolling bar 157a are coupled to the fixed frame 113, as the joint portion 157b rotates upward, the rolling bar 157a of the rolling portion 157 rotates counterclockwise. As the rolling bar 157a rotates counterclockwise, the pusher portion 157c of the rolling portion 157 rotates counterclockwise. The link member 159 of the movable link unit 156 is moved to the opposite side (left side) of the electric unit 111 of the fixed frame 113 by rotation of the pusher unit 157c. As the link member 159 moves to the opposite side of the electrical unit 111, the slider unit 140 moves a certain distance L1 to the opposite side of the electrical unit 111. At this time, since the molar brush unit 135 is disposed on the upper and lower sides of the slider wing unit 143, the molar brush unit 135 moves to the opposite side of the front length unit 111 and brushes the upper and lower sides of the molars.

In this way, when the mouthpiece unit 120 is rotated upward, the slider unit 140 moves to the opposite side of the forearm unit 111, so the side brush unit 133 and the molar brush unit 135 perform toothbrushing at the same time. do.

Figure 16 is a cross-sectional view showing the mouthpiece part lowered to the middle position in the electric toothbrush device according to an embodiment of the present invention, and Figure 17 is a cross-sectional view showing the mouthpiece part in the middle position in the electric toothbrush device according to an embodiment of the present invention. This is a plan view showing the state in which the slider wing part is retracted when lowered.

Referring to Figures 16 and 17, when the eccentric rod (155b) is returned to the middle position, the eccentric rod (155b) is located on one side of the long hole (122a) of the first connection portion (122). At this time, the front length portion 111 side of the first mouthpiece portion 121 and the second mouthpiece portion 125 is located in the middle of the fixing frame 113 in the height direction. As the first mouthpiece 121 and the second mouthpiece 125 are rotated to the middle position (H2), the side brush part 133 and the side brush part 133 are moved to the middle position (H2), thereby performing toothbrushing. do.

When the front length part 111 side of the first mouthpiece part 121 and the second mouthpiece part 125 is lowered to the middle position, the joint part 157b of the rolling part 157 is moved to the middle height (driven gear 153 ) is rotated at the height of the rotation axis. At this time, as the joint portion 157b rotates downward, the rolling bar 157a of the rolling portion 157 rotates clockwise. As the rolling bar 157a rotates clockwise, the pusher portion 157c of the rolling portion 157 rotates clockwise. The link member 159 of the movable link unit 156 is moved to the electric unit 111 side (right) of the fixed frame 113 by rotation of the pusher unit 157c. As the link member 159 moves toward the electrical equipment 111, the slider unit 140 moves a certain distance L2 toward the electrical equipment 111. At this time, the molar brush unit 135 moves toward the front length unit 111 to brush the upper and lower sides of the molars. Here, H2 is smaller than H1, and L2 is smaller than L1.

Figure 18 is a cross-sectional view showing the mouthpiece part lowered to the lowest position in the electric toothbrush device according to an embodiment of the present invention, and Figure 19 is a cross-sectional view showing the mouthpiece part in the electric toothbrush device according to an embodiment of the present invention. This is a plan view showing the state in which the slider wing part is retracted when lowered to a low position.

Referring to Figures 18 and 19, when the eccentric rod (155b) is rotated to the lowest position, the eccentric rod (155b) is located in the middle of the long hole (122a) of the first connection portion (122). At this time, the front length portion 111 side of the first mouthpiece portion 121 and the second mouthpiece portion 125 is positioned lowest in the fixing frame 113. Toothbrushing is performed while the side brush unit 133 and the side brush unit 133 are moved to the lowest position (H3).

When the front arm part 111 side of the first mouthpiece part 121 and the second mouthpiece part 125 is lowered to the lowest position, the joint part 157b of the rolling part 157 is rotated to the lowest position. . As the joint portion 157b is rotated to the lowest position, the rolling bar 157a and the pusher portion 157c of the rolling portion 157 rotate clockwise. The link member 159 of the movable link part 156 is moved to the front part 111 side (right) of the fixed frame 113 by the pusher part 157c. As the link member 159 moves toward the electrical equipment 111, the slider unit 140 moves a certain distance L3 toward the electrical equipment 111. At this time, the molar brush unit 135 moves toward the front length unit 111 to brush the upper and lower sides of the molars.

As described above, since the mouthpiece portion 120 is provided to be deformable inside the toothbrush body portion 110, the mouthpiece portion 120 may be brought together or spread out depending on the thickness of the user's dentition or molars. Therefore, since the side brush parts 133 are in close contact with both sides of the teeth, the teeth can be brushed cleanly even if the teeth are slightly different depending on the consumer.

Additionally, since the slider portion 140 is provided to be movable inside the toothbrush body portion 110, the molar brush portion 135 can be moved according to the consumer's teeth. Therefore, since the lower side of the upper molars and the upper side of the lower molars are in close contact with the molar brush unit 135, the upper and lower sides of the molars can be cleanly brushed by the molar brush unit 135.

In addition, the driving gears 152 are each connected to a pair of motors 151a, and the driven gear 153 engages and rotates the pair of driving gears 152, so the rotational torque of the driven gear 153 will increase. You can. As the rotational torque of the driven gear 153 increases, the vertical driving torque of the mouthpiece unit 120 and the forward and backward driving torque of the slider unit 140 can be increased. In addition, since a pair of driving gears 152 support both sides of the driven gear 153, the axial direction of the driven gear 153 is prevented from being twisted to one side, and the driven gear 153 is connected to the driving gear 152. It can prevent it from being pushed to one side by the driving force.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand.

Therefore, the true technical protection scope of the present invention should be determined by the claims.

10: Charging stand 110: Toothbrush body part
111: electric unit 113: fixed frame
116: Connector portion 117: Rotating shaft portion
118: floating portion 120: mouthpiece portion
121: first mouthpiece part 121a: first upper mouthpiece part
121b: first lower mouthpiece portion 122: first connection portion
123: 1st rotation hole 124: 1st slot
125: second mouthpiece part 125a: second upper mouthpiece part
125b: second lower mouthpiece portion 126: second connection portion
127: Second rotation hole part 130: Side brush part
135: molar brush part 140: slider part
141: Slider body portion 141a: Link connection portion
141b: Slider tube 143: Slider wing portion
143a: wing panel portion 144: floating shaft portion
145: Removable hole part 147: Slider protrusion part
147a: first slider protrusion 147b: second slider protrusion
148: Slider hole part 150: Driving part
151: Geared motor unit 151a: Motor
152: driving gear 153: driven gear
155: Eccentric shaft part 155a: Eccentric body part
155b: Eccentric rod 156: Moving link part
157: rolling part 157a: rolling bar
157b: Joint part 157c: Pusher part
159: Link member 161: First circuit board
162: second circuit board 171: battery unit
173: Charging coil unit

Claims (19)

Toothbrush body part;
A mouthpiece portion movably disposed on the toothbrush body portion, coupled with a side brush portion, and provided to be deformed inside the toothbrush body portion;
A slider portion movably disposed on the mouthpiece portion and provided with a molar brush portion; and
It includes a driving part that moves at least one of the mouthpiece part and the slider part,
The mouthpiece part is coupled to the toothbrush body part to move in the left and right direction,
The toothbrush body portion includes a connector portion coupled to each side,
A rotating shaft portion is formed in the connector portion,
An electric toothbrush device, characterized in that both sides of the mouthpiece are coupled to the rotating shaft so that they move along the rotating shaft.
delete delete According to paragraph 1,
An electric toothbrush device, characterized in that coupling grooves are formed on both sides of the toothbrush body portion to allow the connector portion to be detachably inserted.
According to paragraph 1,
An electric toothbrush device, characterized in that the slider part is coupled to both sides of the toothbrush body part so that it moves inside the toothbrush body part.
According to clause 5,
The slider part,
a slider body portion connected to the driving portion; and
An electric toothbrush device comprising the molar brush portion and a slider wing portion on both sides of the slider body portion that is relatively movably coupled to the slider body portion.
Toothbrush body part;
A mouthpiece portion movably disposed on the toothbrush body portion, coupled with a side brush portion, and provided to be deformed inside the toothbrush body portion;
A slider portion movably disposed on the mouthpiece portion and provided with a molar brush portion; and
It includes a driving part that moves at least one of the mouthpiece part and the slider part,
The slider portion is coupled to both sides of the toothbrush body portion to be moved inside the toothbrush body portion,
Flow-permitting portions are formed on both sides of the toothbrush body portion,
An electric toothbrush device, characterized in that both sides of the slider part are coupled to the flow allowance part so as to be able to move from the flow allowance part to the inside of the toothbrush body part.
In clause 7,
The slider part,
a slider body portion connected to the driving portion; and
An electric toothbrush device comprising a slider wing portion formed on both sides of the slider body portion, provided with the molar brush portion, and movably coupled to the movement allowance portion of the toothbrush body portion.
According to clause 8,
The slider wing part is,
An electric toothbrush device comprising a pair of wing panel parts formed in parallel on both sides of the slider body part, provided with the molar brush part, and spaced apart from each other so that the connector part of the toothbrush body part is inserted.
According to clause 9,
A flow shaft portion is formed between the wing panel portions,
An electric toothbrush device, wherein the flow-permitting portion is formed in the connector portion so that the flow shaft portion moves in the front-back and left-right directions.
According to claim 6 or 8,
The slider body portion and the slider wing portion are moved forward and backward by the driving portion,
An electric toothbrush device, characterized in that the slider wing part moves in the left and right direction together with both sides of the mouthpiece part.
According to paragraph 1,
The toothbrush body part,
An electrical unit provided with the driving unit; and
An electric toothbrush device comprising a fixed frame that is coupled to the electric unit, extends on both sides so that the mouthpiece part is coupled, and has a guide part formed to guide the mouthpiece part to prevent the mouthpiece part from being separated.
According to clause 12,
The driving unit,
A geared motor unit disposed in the electrical equipment unit;
an eccentric shaft portion connected to the geared motor portion and connected to the mouthpiece portion to move the mouthpiece portion in an upward and downward direction when the geared motor portion is driven; and
An electric toothbrush device comprising a movable link part that is link-coupled with the mouthpiece part and the slider part and moves the slider part forward and backward as the mouthpiece part moves in the up and down direction.
According to clause 13,
The mobile link unit,
a rolling portion rotatably coupled to the mouthpiece portion and rotatably coupled to the fixed frame to perform a rolling movement as the mouthpiece portion moves in an upward and downward direction; and
An electric toothbrush device comprising a link member connected to the rolling unit and the slider unit and moving the slider unit forward and backward as the rolling unit rolls.
According to clause 14,
The rolling part,
a rolling bar rolledably coupled to the fixed frame;
a joint portion that protrudes from an outer surface of the rolling bar, is rotatably coupled to the mouthpiece portion, and rolls the rolling bar as the mouthpiece portion rotates; and
An electric toothbrush device comprising a pusher portion that protrudes from an outer surface of the rolling bar, is coupled to the link member, and moves the link member forward and backward as the rolling bar rotates.
According to clause 13,
The geared motor unit,
a pair of motors disposed in the electrical unit;
A pair of drive gears respectively connected to the motor and arranged to be spaced apart from each other; and
An electric toothbrush device comprising a driven gear engaged with a pair of the driving gears and connected to the eccentric shaft portion.
According to clause 13,
The mouthpiece part,
a first mouthpiece portion disposed inside the fixing frame and having a first connection portion having a long hole for coupling the eccentric shaft portion; and
An electric toothbrush device comprising a second mouthpiece portion disposed inside the first mouthpiece portion and having a second connection portion formed to connect the first connection portion and the moving link portion.
According to clause 12,
a first circuit board disposed on the bottom of the electrical unit and controlling the driving unit; and
The electric toothbrush device further comprises a second circuit board built on a side wall of the electrical unit and connected to the first circuit board.
According to clause 18,
The electric toothbrush device further includes a battery unit disposed on an opposite side of the second circuit board from the electrical unit.

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