JP5884085B2 - Oral hygiene equipment - Google Patents

Description

  The present invention includes a vibration generating device as a vibration source, a main body case that accommodates the vibration generating device, and a first functional unit that is attached to an attachment shaft formed in the main body case. The present invention relates to an oral hygiene device that can be removed from an attachment shaft.

  As the oral hygiene device, an electric toothbrush described in Patent Document 1 is known.

Japanese Patent Laid-Open No. 9-168554

By the way, the electric toothbrush has no function other than brushing.
For this reason, there is room for improvement in terms of multifunctional electric toothbrushes. In addition, although the subject of the electric toothbrush was mentioned here, the said subject is common also about oral-hygiene apparatuses (for example, stain care apparatus) other than an electric toothbrush.

  An object of the present invention is to provide an oral hygiene device having a plurality of functions.

  One form of the oral hygiene device according to the present invention includes a vibration generator as a vibration source, a main body case that accommodates the vibration generator, an attachment shaft formed on the main body case, and an attachment shaft. A first functional part that can be removed and a tip provided at the tip of the mounting shaft, housed in a space formed in the first functional part, attached to the mounting shaft, and removed from the mounting shaft A second functional unit capable of

  ADVANTAGE OF THE INVENTION According to this invention, the oral-hygiene apparatus provided with the several function can be provided.

FIG. 2 is a perspective view of the electric toothbrush of the first embodiment. These are the figures of the electric toothbrush of FIG. 1 (a: front view, b: AA sectional view). These are the figures regarding the main body of FIG. 1 (a: side view, b: front view). FIG. 2 is a view relating to the main body of FIG. 1 (a: plan view, b: BB cross-sectional view, c: C- C sectional view). FIG. 2 is a perspective view in which a part of the main body of FIG. 1 is enlarged. These are figures of the electric toothbrush of 2nd Embodiment (a: front view, b: perspective view). These are the figures of the electric toothbrush of 3rd Embodiment (a: side view, b: front view). These are DD sectional drawings of FIG. These are figures of the electric toothbrush of 4th Embodiment (a: side view, b: front view). FIG. 10 is a cross-sectional view taken along line EE in FIG. 9. FIG. 3 is a perspective view of a stain care device.

  (An example of the form that the oral hygiene device can take)
  [1] One embodiment of the oral hygiene device according to the present invention is formed in the main body case, the vibration generating device as the vibration source, the main body case for housing the vibration generating device. A first functional part that can be attached to and removed from the attachment shaft, and is provided at a tip portion of the attachment shaft, and is accommodated in a space formed in the first functional part, A second functional unit that can be attached to the attachment shaft and can be removed from the attachment shaft.
  [2] According to an example of the oral hygiene device, the first functional unit is a toothbrush.
  [3] According to an example of the oral hygiene device, the vibration generating device is accommodated in a space formed in the mounting shaft.
  [4] According to an example of the oral hygiene device, the position of the second functional part in a side view of the oral hygiene device is biased backward with respect to the center line of the main body case.

(First embodiment)
With reference to FIG. 1, the structure of the electric toothbrush 1 as an oral hygiene apparatus is demonstrated.
The electric toothbrush 1 is provided with a main body 10 to be gripped by a user, a toothbrush 20 for brushing teeth, a cap 30 for housing the toothbrush 20 by being attached to the main body 10, and a stain care attachment 40 for removing colored stains on the teeth. It has been. The toothbrush 20 corresponds to a “first function unit”. The stain care attachment 40 corresponds to a “second function unit”.
The main body 10 is provided with a gripping case 11 that is gripped by a user and an attachment case 12 that is attached to the gripping case 11. The cap 30 is attached to the attachment case 12 in a state where attachment to the attachment case 12 and removal from the attachment case 12 are possible. As shown in FIG. 2A, when the cap 30 is attached to the attachment case 12, the operation member 17 is covered with the cap 30. Further, the outer peripheral surface of the cap 30 and the outer peripheral surface of the gripping case 11 are located on the same surface. The attachment case 12 corresponds to a “main body case”.

  The attachment case 12 is provided with a brush attachment shaft 52 formed in a cylindrical shape and an operation member 17 for the user to operate the electric toothbrush 1. The brush mounting shaft 52 corresponds to an “mounting shaft”.

  The toothbrush 20 is attached to the brush attachment shaft 52 in a state in which the toothbrush 20 can be attached to and detached from the brush attachment shaft 52. The toothbrush 20 is provided with a plurality of bristles 21 and a case 22 that holds the bristles 21.

Here, the direction of the electric toothbrush 1 is defined as follows.
(A) The longitudinal direction of the main body 10 is defined as “the vertical direction of the electric toothbrush 1”. In this vertical direction, the direction from the gripping case 11 to the toothbrush 20 is referred to as “above the electric toothbrush 1”, and the direction opposite to the upper side in this vertical direction is referred to as “below the electric toothbrush 1”.
(B) The longitudinal direction of the brush bristles 21 is defined as “the front-rear direction of the electric toothbrush 1”. In this front-rear direction, the direction from the base end to the front end of the brush bristles 21 is “front of the electric toothbrush 1”, and in the same front-rear direction, the direction opposite to the front is “rear of the electric toothbrush 1”.

The internal structure of the electric toothbrush 1 will be described with reference to FIG.
As shown in FIG. 2B, inside the main body 10, a battery 13 as a power source for the electric toothbrush 1, a circuit board 14 on which a switch 16 is mounted, and the battery 13 and the circuit board 14 are connected to each other. A connecting member 15 and a vibration generator 70 serving as a vibration source are provided.

  The vibration generator 70 is provided with an electric motor 71 serving as a drive source and a weight 73 attached to the output shaft 72 of the electric motor 71. The weight 73 is fixed to the output shaft 72. Further, the center of gravity of the weight 73 is eccentric with respect to the output shaft 72.

The attachment case 12 is provided with an outer case 50 in which a brush attachment shaft 52 is formed and an inner case 60 attached to the outer case 50.
The inner case 60 is provided with a battery attachment portion 61 to which the battery 13 is attached, a substrate attachment portion 62 to which the circuit board 14 is attached, and a device attachment portion 63 to which the vibration generator 70 is attached.

  The outer case 50 is provided with a cylindrical case main body 51 to which the operation member 17 is attached, and a brush attachment shaft 52 formed so as to protrude upward from the upper end portion of the case main body 51.

  The brush mounting shaft 52 is provided with a cylindrical shaft portion 52A and a flat surface portion 52B that covers the upper end portion of the shaft portion 52A. A space 53 is formed inside the brush mounting shaft 52.

  The flat portion 52B is formed with a protruding portion 54 that protrudes upward from the flat portion 52B. The stain care attachment 40 is attached to the protruding portion 54 in a state where the stain care attachment 40 can be attached to and detached from the protruding portion 54.

  The space 53 of the brush mounting shaft 52 accommodates most of the device mounting portion 63 of the inner case 60, most of the electric motor 71 of the vibration generating device 70, the output shaft 72, and the weight 73. Further, in a state where the vibration generating device 70 is housed in the space 53 of the brush mounting shaft 52, the outer surface of the device mounting portion 63 and the inner surface of the shaft portion 52A are in contact.

The case 22 of the toothbrush 20 is provided with a flat plate-like holding portion 23 that holds the brush bristles 21 and a case body 24 that extends downward from the holding portion 23.
The front portion 24A of the case body 24 is inclined backward as it goes upward. The rear surface portion 24B of the case body 24 is inclined forward as it goes upward. The inclination degree of the front surface portion 24A of the case body 24 is larger than the inclination degree of the rear surface portion 24B of the case body 24. For this reason, the holding portion 23 is located rearward with respect to the center line C <b> 1 of the main body 10. The center line C1 of the main body 10 corresponds to the “center line of the main body case”.

  A space 25 is formed in the case body 24. The space 25 is formed in the same shape as the inclination of the front surface portion 24A and the inclination of the rear surface portion 24B of the case body 24. That is, the inclination degree of the front part of the space 25 is larger than the inclination degree of the rear part.

  A stain care attachment 40 is accommodated in the space 25 of the case body 24. The upper end of the stain care attachment 40 is positioned below the uppermost portion of the wall surfaces forming the space 25 in the case body 24. That is, a portion where the stain care attachment 40 does not exist is formed in a portion above the space 25.

The operation of the electric toothbrush 1 will be described with reference to FIGS. 1 and 2.
When the toothbrush 20 is attached to the brush attachment shaft 52 and the switch 16 is turned on by the operation of the operation member 17, the voltage of the battery 13 is applied to the electric motor 71. Then, when the output shaft 72 and the weight 73 of the electric motor 71 rotate, the electric motor 71 vibrates. This vibration is transmitted to each of the toothbrush 20 and the stain care attachment 40 via the brush attachment shaft 52.

The structure of the stain care attachment 40 and its periphery will be described with reference to FIGS.
As shown in FIG. 2B, the stain care attachment 40 is provided with a base 41 attached to the protruding portion 54 of the brush attachment shaft 52 and a polishing portion 44 that removes colored stains on the teeth.

  The base 41 is provided with a pedestal 42 attached to the protruding portion 54 of the brush attachment shaft 52 and a core portion 43 protruding upward from the upper end portion of the pedestal 42. The upper end portion of the core portion 43 is formed with an enlarged diameter portion 43 </ b> A that is larger in diameter than the other portions of the core portion 43.

  The polishing portion 44 is formed so as to surround the upper end surface of the base 42 and the core portion 43. The upper end portion of the polishing portion 44 is formed with a tapered portion 44A whose width in the front-rear direction decreases as it goes upward. As a material of the polishing portion 44, silicon rubber containing an abrasive is used.

  As shown in FIGS. 3A and 3B, the pedestal 42 has a bottom surface 42A facing the flat surface portion 52B of the brush mounting shaft 52, an upper surface 42B to which the core portion 43 of FIG. 2 is attached, and a bottom surface 42A. And a connection portion 42C for connecting the upper surface 42B. A pair of plane portions 42D is formed in the connection portion 42C.

  The shape of the outer peripheral edge of the bottom surface 42 </ b> A corresponds to the shape of the outer peripheral edge of the flat portion 52 </ b> B of the brush mounting shaft 52. The shape of the outer peripheral edge of the upper surface 42 </ b> B corresponds to the shape of the outer peripheral edge of the lower end portion of the polishing portion 44. The center line C2 of the upper surface 42B and the center line of the polishing portion 44 are located coaxially.

  A claw portion 54A that protrudes forward from the protrusion portion 54 and a claw portion 54A that protrudes rearward from the protrusion portion 54 are provided at the upper end portion of the protrusion portion 54 of the brush mounting shaft 52. The front claw portion 54A is larger than the rear claw portion 54A.

  As shown in FIG. 4B, the pedestal 42 has an insertion hole 42E into which the protruding portion 54 of the brush mounting shaft 52 of FIG. 4A is inserted, and 2 formed above the insertion hole 42E. Two detent portions 42F are formed. The insertion hole 42E penetrates the bottom surface 42A of the base 42 in FIG. 3 in the vertical direction. Each claw portion 54A of the protruding portion 54 in FIG. 4A is in contact with each detent portion 42F.

  As shown in FIG. 4A, the center line C <b> 3 of the brush mounting shaft 52 is located behind the center line C <b> 1 of the main body 10. The center line C4 of the protruding portion 54 of the brush mounting shaft 52 is located behind the center line C3 of the brush mounting shaft 52.

  As shown in FIG. 4C, in the state where the stain care attachment 40 is attached to the protruding portion 54 of the brush mounting shaft 52, the center line C2 of the base 42, that is, the center line of the polishing portion 44 is the center of the protruding portion 54. It is located coaxially with the line C4.

With reference to FIG. 4 and FIG. 5, the attachment aspect of the stain care attachment 40 is demonstrated.
As shown in FIG. 5A, the pedestal 42 of the stain care attachment 40 is inserted into the protruding portion 54 of the brush mounting shaft 52.

  As shown in FIG. 5 (b), after the pedestal 42 is inserted into the protruding portion 54 of the brush mounting shaft 52, the stain care attachment 40 is moved so that the front of the stain care attachment 40 and the front of the electric toothbrush 1 coincide with each other. Rotate.

  As shown in FIG. 5C, when the front surface of the stain care attachment 40 and the front surface of the electric toothbrush 1 coincide with each other, as shown in FIG. The nail | claw part 54A of the protrusion part 54 of 52 contacts. Thereby, the clockwise rotation of the stain care attachment 40 with respect to the brush attachment shaft 52 is restricted.

  When the stain care attachment 40 is removed from the brush attachment shaft 52, the stain care attachment 40 is rotated counterclockwise with respect to the brush attachment shaft 52 in the state of FIG. Then, the stain care attachment 40 is moved upward in the state of FIG.

(Effect of embodiment)
According to the electric toothbrush 1 of the present embodiment, the following effects can be obtained.
(1) In the electric toothbrush 1, the toothbrush 20 is attached to the brush attachment shaft 52. Further, a stain care attachment 40 is provided on the brush mounting shaft 52. According to this configuration, the electric toothbrush 1 can obtain a tooth brushing function by the toothbrush 20 and a tooth coloring dirt removing function by the stain care attachment 40. That is, the electric toothbrush 1 having a plurality of functions related to cleaning in the oral cavity can be provided.

  (2) In the electric toothbrush 1, when the toothbrush 20 is attached to the main body 10, the stain care attachment 40 is accommodated in the space 25 of the case main body 24 of the toothbrush 20. According to this structure, compared with the structure which removes the toothbrush 20 from the main body 10, and attaches a separate stain care attachment to the main body 10, it is the operation | work which changes from the state which uses the toothbrush 20 to the state which uses the stain care attachment 40 Becomes easier.

  (3) In the electric toothbrush 1, each of the toothbrush 20 and the stain care attachment 40 is accommodated therein. According to this structure, portability improves compared with the structure where the stain care attachment different from the electric toothbrush 1 is attached to the main body 10.

  (4) In the electric toothbrush 1, the stain care attachment 40 is attached to the brush attachment shaft 52 in a state where the attachment to the brush attachment shaft 52 and the removal from the brush attachment shaft 52 are possible. According to this configuration, the stain care attachment 40 can be cleaned with the stain care attachment 40 removed from the brush attachment shaft 52. Further, the stain care attachment 40 can be exchanged for a new stain care attachment 40 and another stain care attachment having a common attachment structure to the brush attachment shaft 52.

  (5) In the electric toothbrush 1, the vibration generator 70 is accommodated on the brush mounting shaft 52. According to this configuration, since the distance between the vibration generating device 70 and the stain care attachment 40 is smaller than the configuration in which the vibration generating device 70 is provided below the brush mounting shaft 52, the vibration generating device 70 is reduced. The distance until the vibration generated by the transmission to the stain care attachment 40 is reduced. As a result, the degree to which the vibration is attenuated before the vibration of the vibration generating device 70 is transmitted to the stain care attachment 40 is reduced. Therefore, the vibration of the vibration generating device 70 is efficiently transmitted to the stain care attachment 40 and the toothbrush 20. be able to.

  (6) Further, the vibration generating device 70 is accommodated in the brush mounting shaft 52, thereby reducing the size of the main body 10 as compared with the structure in which the vibration generating device 70 is provided below the brush mounting shaft 52. Can do.

  (7) In the electric toothbrush 1, the stain care attachment 40 is biased backward with respect to the center line C <b> 1 of the main body 10 in a side view of the electric toothbrush 1. According to this configuration, the front portion 24 </ b> A of the case body 24 can be inclined backward as it goes from the portion of the case 22 corresponding to the flat portion 52 </ b> B of the brush mounting shaft 52 toward the holding portion 23. Further, since the front portion 24A is inclined, the case 22 is less likely to come into contact with the teeth when the user brushes the back teeth.

  (8) In the electric toothbrush 1, the stain care attachment 40 is covered with the toothbrush 20. According to this configuration, the stain care attachment 40 can be kept clean as compared with a configuration in which the stain care attachment 40 is not covered by the toothbrush 20.

  (9) In the electric toothbrush 1, a pair of planar portions 42 </ b> D are formed on the base 42 of the stain care attachment 40. According to this configuration, since the stain care attachment 40 is easily gripped when the stain care attachment 40 is rotated, the attachment work of the stain care attachment 40 to the brush attachment shaft 52 and the stain care from the brush attachment shaft 52 are performed. The removal work of the attachment 40 can be easily performed.

(Second Embodiment)
The electric toothbrush 2 of this embodiment shown by FIG. 6 is comprised as what changed a part of the electric toothbrush 1 of 1st Embodiment. For this reason, below, the detail of a different point from the electric toothbrush 1 of 1st Embodiment is demonstrated, about the structure which is common in the same embodiment, the same code | symbol is attached | subjected and the part or all of the description is abbreviate | omitted. 6 shows the electric toothbrush 2 in a state where the toothbrush 20 and the cap 30 are omitted.

  In the electric toothbrush 1 of the first embodiment, the stain care attachment 40 is attached to the brush attachment shaft 52 as the second functional part. On the other hand, in the electric toothbrush 2 of this embodiment, the interdental brush 80 is attached to the brush attachment shaft 52 as a second functional part. The brush attachment shaft 52 is provided with a stain care attachment 90 as a third functional unit.

  As shown in FIG. 6A, the interdental brush 80 includes a pedestal 81 attached to the protruding portion 54 of the brush attachment shaft 52 and a brush portion 82 protruding upward from the upper end portion of the pedestal 81. Is provided.

  The pedestal 81 has the same structure as the pedestal 42 of the stain care attachment 40 of the first embodiment. The center line C5 of the brush portion 82 of the interdental brush 80 is located on the rear side of the center line C1 of the main body 10.

  A spherical stain care attachment 90 as a third functional part is provided on the upper end surface of the protruding portion 54 of the brush mounting shaft 52. As a material for the stain care attachment 90, silicon rubber containing an abrasive is used.

  As shown in FIG. 6B, when the interdental brush 80 is attached to the brush attachment shaft 52, the stain care attachment 90 of FIG. 6A is accommodated in the base 81. In this state, when the toothbrush 20 is attached to the brush attachment shaft 52, the interdental brush 80 is accommodated in the space 25 of the toothbrush 20 of FIG.

(Effect of embodiment)
According to the electric toothbrush 2 of the present embodiment, the following effect (10) can be obtained in addition to the effects (2) to (9) of the first embodiment.

  (10) In the electric toothbrush 2, the toothbrush 20 and the interdental brush 80 are attached to the brush attachment shaft 52. Further, a stain care attachment 90 is provided on the brush mounting shaft 52. According to this configuration, a tooth brushing function by the toothbrush 20, a function of removing dirt between teeth by the interdental brush 80, and a function of removing tooth coloring dirt by the stain care attachment 90 are obtained. That is, the electric toothbrush 2 having a plurality of functions related to cleaning in the oral cavity can be provided.

(Third embodiment)
The electric toothbrush 3 of this embodiment shown in FIG. 7 corresponds to the electric toothbrush 1 of the first embodiment in which the overall configuration of the electric toothbrush including the main body 10 and the toothbrush 20 is changed. In addition, below, the detail of a different point from the electric toothbrush 1 of 1st Embodiment is demonstrated, about the structure which is common in the same embodiment, the same code | symbol is attached | subjected and the part or all of the description is abbreviate | omitted.

With reference to FIG. 7, the whole structure of the electric toothbrush 3 is demonstrated.
The electric toothbrush 3 is provided with a gripping case 100 gripped by a user, a brush attachment shaft member 110 protruding upward from an upper end portion of the gripping case 100, and a toothbrush 120 for brushing teeth. The gripping case 100 is provided with an operation member 103 for operating the operation of the electric toothbrush 3. The gripping case 100 corresponds to a “main body case”. The toothbrush 120 corresponds to a “first function unit”.

  A stain care attachment 113 is provided at the upper end portion of the brush mounting shaft member 110. As a material for the stain care attachment 113, silicon rubber containing an abrasive is used. The stain care attachment 113 corresponds to a “second functional unit”.

  The toothbrush 120 is attached to the brush attachment shaft member 110 in a state where the toothbrush 120 can be attached to the brush attachment shaft member 110 and removed from the brush attachment shaft member 110. The toothbrush 120 is provided with a plurality of bristles 121 and a case 122 that holds the bristles 121.

The internal structure of the electric toothbrush 3 will be described with reference to FIG.
The gripping case 100 is provided with an outer case 101 to which an operation member 103 is attached, and an inner case 102 to which a battery 13 as a power source and a vibration generator 130 as a vibration source are attached.

  An elastic member 115 is attached to the outer peripheral portion of the lower end portion of the brush attachment shaft member 110. An O-ring is used as the elastic member 115. A lower end portion of the brush attachment shaft member 110 is attached to the outer case 101 via an elastic member 115.

  The vibration generator 130 is provided with an electric motor 131 as a drive source, a shaft 133 attached to the output shaft 132 of the electric motor 131, and a weight 134 attached to the upper end portion of the shaft 133. The shaft 133 is fixed to the output shaft 132. The weight 134 is fixed to the shaft 133.

  A space 114 is formed inside the brush mounting shaft member 110. The shaft 133 and the weight 134 are accommodated in the space 114. The electric motor 131 is provided below the space 114 of the brush mounting shaft member 110.

  The upper end portion of the brush mounting shaft member 110 includes a first protrusion portion 111 that accommodates the upper end portion of the shaft 133 therein, and a second protrusion portion 112 that protrudes upward from the upper end surface of the first protrusion portion 111. Is provided.

An enlarged diameter portion 112 </ b> A having a larger diameter than other portions of the second protruding portion 112 is formed at the upper end portion of the second protruding portion 112.
A stain care attachment 113 is provided around the first projecting portion 111 and the second projecting portion 112. The stain care attachment 113 is formed so that the width in the front-rear direction decreases as it goes upward.

  A space 123 is formed in the case 122 of the toothbrush 120. In this space 123, the brush mounting shaft member 110 and the stain care attachment 113 are accommodated. The upper end of the stain care attachment 113 is positioned below the uppermost portion of the wall surfaces forming the space 123 in the case 122. That is, a portion where the stain care attachment 113 does not exist is formed in the upper portion of the space 123.

(Effect of embodiment)
According to the electric toothbrush 3 of this embodiment, in addition to the effects (1) and (2) of the first embodiment, the following effects (11) and (12) can be obtained.

  (11) In the electric toothbrush 3, the electric motor 131 of the vibration generating device 130 is provided below the brush mounting shaft member 110. According to this configuration, the width in the front-rear direction of the brush mounting shaft member 110 can be reduced as compared with the configuration in which the electric motor 131 is accommodated in the brush mounting shaft member 110.

  (12) In the electric toothbrush 3, the lower end portion of the brush attachment shaft member 110 is attached to the outer case 101 via the elastic member 115. According to this configuration, the upper end portion of the brush mounting shaft member 110 vibrates using the elastic member 115 as a fulcrum. For this reason, the amplitude of the upper end portion of the brush mounting shaft member 110 is larger than the configuration in which the brush mounting shaft member 110 vibrates using a portion above the elastic member 115 as a fulcrum.

(Fourth embodiment)
The electric toothbrush 4 of this embodiment shown in FIG. 9 is equivalent to the electric toothbrush 1 of the first embodiment in which the overall configuration of the electric toothbrush including the main body 10 and the toothbrush 20 is changed. In addition, below, the detail of a different point from the electric toothbrush 1 of 1st Embodiment is demonstrated, about the structure which is common in the same embodiment, the same code | symbol is attached | subjected and the part or all of the description is abbreviate | omitted.

With reference to FIG. 9, the whole structure of the electric toothbrush 4 is demonstrated.
The electric toothbrush 4 is provided with a gripping case 140 gripped by a user, a brush mounting shaft 150 protruding upward from the gripping case 140, and a toothbrush 160 for brushing teeth. The gripping case 140 corresponds to a “main body case”. The toothbrush 160 corresponds to a “first function unit”.

The gripping case 140 is provided with an operation member 144 for operating the operation of the electric toothbrush 4.
The toothbrush 160 is attached to the brush attachment shaft 150 in a state in which the toothbrush 160 can be attached to and detached from the brush attachment shaft 150. The toothbrush 160 is provided with a plurality of brush hairs 161 and a case 162 for holding the brush hairs 161.

  A cutout portion 151 is formed at the upper end and the front portion of the brush mounting shaft 150. A stain care attachment 152 is provided in the notch portion 151. As a material for the stain care attachment 152, silicon rubber containing an abrasive is used. The stain care attachment 152 corresponds to a “second functional unit”.

The internal structure of the electric toothbrush 4 will be described with reference to FIG.
The gripping case 140 holds a first case 141 to which an operation member 144 is attached, a second case 142 attached to the first case 141, a battery 13 as a power source, and a vibration generator 170 as a vibration source. A third case 143 is provided.

  As the vibration generator 170, a linear oscillator that reciprocates the drive shaft 171 in the vertical direction based on the magnetic force between the magnet and the coil is used. A brush attachment shaft 150 is attached to the upper end portion of the drive shaft 171.

  A space 163 is formed in the case 162 of the toothbrush 160. In this space 163, the brush mounting shaft 150 is accommodated. The upper end of the brush mounting shaft 150 is positioned below the uppermost portion of the wall surfaces forming the space 163 in the case 162. That is, a portion where the brush mounting shaft 150 does not exist is formed in the upper portion of the space 163.

(Effect of embodiment)
According to the electric toothbrush 4 of the present embodiment, the following effects (13) and (14) can be obtained in addition to the effects (1) and (2) of the first embodiment.

  (13) In the electric toothbrush 4, a linear oscillator is provided as the vibration generator 170. According to this configuration, the frequency and amplitude can be increased as compared with the configuration in which the vibration generator 70 or the vibration generator 130 is provided.

  (14) In the electric toothbrush 4, the stain care attachment 152 is provided in the notch portion 151 of the brush mounting shaft 150. According to this configuration, the width in the front-rear direction of the brush mounting shaft 150 is reduced.

(Other embodiments)
The embodiment of the present invention is not limited to the contents of the first to fourth embodiments, and can be modified as follows, for example. The following modifications are not applied only to the first to fourth embodiments, and different modifications can be combined with each other.

  -In 1st Embodiment (FIG. 3), although the stain care attachment 40 is attached to the brush attachment axis | shaft 52 in the state which can be attached to the brush attachment axis | shaft 52 and detachable from the brush attachment axis | shaft 52, the stain care attachment 40 and The relationship with the brush mounting shaft 52 can also be changed as follows. That is, the stain care attachment 40 can be fixed to the brush mounting shaft 52 so that it cannot be detached from the brush mounting shaft 52.

  In the first embodiment (FIG. 2), the electric motor 71 of the vibration generating device 70 is accommodated in the space 53 of the brush mounting shaft 52, but the electric motor 71 can also be provided below the brush mounting shaft 52. .

  -In 1st Embodiment (FIG. 4), although the centerline of the stain care attachment 40, ie, the centerline C2 of the base 42, is located back with respect to the centerline C3 of the brush attachment axis | shaft 52, The center line C3 and the center line of the stain care attachment 40 can be coaxial.

  In the second embodiment (FIG. 6), the stain care attachment 90 is fixed to the protruding portion 54 of the brush mounting shaft 52, but the stain care attachment 90 is attached to the protruding portion 54 in a state where it can be detached from the protruding portion 54. Can also be attached.

  -In 2nd Embodiment (FIG. 6), although the stain care attachment 90 is provided in the projection part 54 of the brush attachment axis | shaft 52, it replaces with the stain care attachment 90 and a nail brush attachment or a gum massage attachment is a projection part. 54 can also be provided.

In the first and second embodiments (FIGS. 1 and 6), the cap 30 is attached to the main body 10, but the cap 30 may be omitted.
In the third embodiment (FIG. 8), the vibration generator 170 can be used instead of the vibration generator 130. In this case, the drive shaft 171 of the vibration generator 170 is connected to the brush mounting shaft member 110.

-In 1st-4th embodiment (FIG.1, FIG.6, FIG.7 and FIG.9), the combination of a 1st functional part and a 2nd functional part can also be changed as follows.
(A) A toothbrush is provided as the first function part, and any one of a toothbrush, a gum massage attachment, a point brush, a nail brush attachment, a dentifrice tube, and a vibration adjusting bell is provided as the second function part.

  (B) A gum massage attachment is provided as the first functional part, and a tooth brush, gum massage attachment, point brush, nail brush attachment, dentifrice tube, bell for vibration adjustment, interdental brush, and stain as the second functional part Provide one of the care attachments.

  (C) A point brush is provided as the first functional part, and a point brush, toothbrush, gum massage attachment, nail brush attachment, dentifrice tube, bell for vibration adjustment, interdental brush, and stain as the second functional part Provide one of the care attachments.

  (D) A nail brush attachment is provided as the first functional part, and a tooth brush, gum massage attachment, point brush, dentifrice tube, vibration adjustment bell, interdental brush, and stain care attachment are provided as the second functional part. Or one.

  (E) Stain care attachment as first function part, Stain care attachment as second function part, toothbrush, gum massage attachment, point brush, nail brush attachment, dentifrice tube, bell for vibration adjustment, interdental Any one of a brush and a paste agent tube is provided.

  (F) An interdental brush is provided as the first function part, and any of interdental brush, toothbrush, gum massage attachment, point brush, nail brush attachment, dentifrice tube, and vibration adjustment bell as the second function part Or one.

  In the configuration including the vibration adjusting weight among the modified examples (A) to (F), the weight is attached to the main body 10 in a state where the weight can be attached to the main body 10 and removed from the main body 10. And when a weight is attached to the main body 10, the vibration of the vibration generator 70 will become weak. On the other hand, when the weight is removed from the main body 10, the vibration of the vibration generating device 70 becomes strong. That is, the vibration of the vibration generator 70 can be adjusted by changing the attachment state of the weight with respect to the main body 10.

  In the first to fourth embodiments (FIGS. 1, 6, 7, and 9), the stain care attachments 40, 90, 113, and 152 are formed of silicon rubber, but the structure of the stain care attachment is It can also be changed as follows. That is, the stain care attachment can be formed by knurling the metal material.

  -In 1st-4th embodiment (FIG.1, FIG.6, FIG.7 and FIG.9), although the example which actualized the oral hygiene apparatus of this invention as the electric toothbrush 1-4 is shown, The oral hygiene device can be embodied as a device other than an electric toothbrush. As an example, there is a portable stain care device 5 shown in FIG.

  The portable stain care device 5 is provided with the first functional unit and the second functional unit in the combination shown in the modified example of (E). Moreover, in this stain care apparatus 5, the state of FIG. 11 to which the stain care attachment 40 is attached corresponds to a configuration in which the toothbrush 20 is omitted from the electric toothbrush 1 of the first embodiment.

(Reference example of embodiment of oral hygiene device)
-A 2nd function part can also be abbreviate | omitted from the stain care apparatus 5. FIG.

  1: Electric toothbrush (oral hygiene device)
  2: Electric toothbrush (oral hygiene device)
  3: Electric toothbrush (oral hygiene device)
  4: Electric toothbrush (oral hygiene device)
  5: Stain care device (oral hygiene device)
  10: Body
  11: gripping case
  12: Mounting case (main body case)
  13: Battery
  14: Circuit board
  15: Connection member
  16: Switch
  17: Operation member
  20: Toothbrush (first functional part)
  21: Brush hair
  22: Case
  23: Holding part
  24: Case body
  24A: Front portion
  24B: Rear part
  25: Space
  30: Cap
  40: Stain care attachment (second functional part)
  41: Base
  42: pedestal
  42A: bottom surface
  42B: upper surface
  42C: Connection part
  42D: plane portion
  42E: Insertion hole
  42F: Stop portion
  43: Core part
  43A: Expanded portion
  44: Polished portion
  44A: Tapered portion
  50: Outer case
  51: Case body
  52: Brush mounting shaft (mounting shaft)
  52A: Shaft portion
  52B: Plane portion
  53: Space
  54: Projection
  54A: Nail part
  60: Inner case
  61: Battery mounting part
  62: Board mounting portion
  63: Device mounting portion
  70: Vibration generator
  71: Electric motor
  72: Output shaft
  73: Weight
  80: Interdental brush (second functional part)
  81: pedestal
  82: Brush part
  90: Stain care attachment
  100: gripping case (main body case)
  101: Outer case
  102: Inner case
  103: Operation member
  110: Brush mounting shaft member (mounting shaft)
  111: 1st protrusion part
  112: 2nd protrusion part
  112A: Expanded diameter portion
  113: Stain care attachment (second functional part)
  114: space
  115: Elastic member
  120: Toothbrush
  121: Brush hair
  122: Case
  123: space
  130: Vibration generator
  131: Electric motor
  132: output shaft
  133: Shaft
  134: Weight
  140: gripping case (main body case)
  141: First case
  142: second case
  143: Third case
  144: Operation member
  150: Brush mounting shaft (mounting shaft)
  151: Notch
  152: Stain care attachment (second functional part)
  160: Toothbrush (first functional part)
  161: Brush hair
  162: Case
  163: space
  170: Vibration generator
  171: Drive shaft
  C1: Center line
  C2: Center line
  C3: Center line
  C4: Center line
  C5: Center line

Claims (4)

  A vibration generator as a vibration source;
  A main body case for housing the vibration generating device;
  Attaching to an attachment shaft formed in the main body case, and a first functional part detachable from the attachment shaft;
  A second functional portion provided at a tip portion of the attachment shaft, accommodated in a space formed in the first functional portion, attached to the attachment shaft, and removable from the attachment shaft.
  Oral hygiene device.   The first functional unit is a toothbrush
  The oral hygiene device according to claim 1.   The vibration generator is accommodated in a space formed on the mounting shaft.
  The oral hygiene device according to claim 1 or 2.   The position of the second functional part in a side view of the oral hygiene device is biased backward with respect to the center line of the main body case.
  The oral hygiene device according to any one of claims 1 to 3.

Images