JP5827824B2 - electric toothbrush - Google Patents

Description

  The present invention relates to an electric toothbrush that includes a main body member that can accommodate a power source, and a flocking portion in which brush hairs are planted, and a cleaning member that can be attached to and removed from the main body member.

As said electric toothbrush, the thing of patent document 1 is known.
A light source for illuminating the inside of the oral cavity when cleaning the teeth is provided inside the main body member of the electric toothbrush.

JP 2005-296516 A

  In the electric toothbrush, since the light source is provided inside the main body member, the flocked portion of the cleaning member may not be sufficiently illuminated by the light from the light source when cleaning the teeth. For this reason, the room for improvement is left in the point of making a flocked part brighter.

  An object of the present invention is to provide an electric toothbrush that can illuminate a flocked portion more brightly.

  One form of the electric toothbrush according to the present invention has a mounting shaft, a main body member capable of accommodating a power supply, and a flocked portion in which brush hairs are planted, and is attached to and removed from the mounting shaft. A cleaning member that is capable of covering, a portion of the mounting shaft that is covered by the cleaning member, a light source that emits light toward the flocked portion, and a periphery of the mounting shaft of the cleaning member And a translucent member that is provided between the flocked portion and the light source in the outer wall portion that is a portion, and is formed of a material having a higher transmittance than the outer wall portion.

The electric toothbrush can illuminate the flocked portion more brightly.

These are the figures of the electric toothbrush of embodiment (a: front view, b: side view). FIG. 2 is a diagram of an electric toothbrush having a cap attached to the toothbrush body of FIG. 1 (a : Front view, b: side view, c: rear view). These are AA sectional drawing of FIG. 2 (a: whole figure, b: enlarged view). These are the figures of the translucent member of FIG. 3 (a: front view, b: side view, c: back view). FIG. 4 is a view of the attachment of FIG. 3 (a: sectional view, b: BB sectional view). These are the figures of the cap of a modification (a: front view, b: sectional view). FIG. 6 is a cross-sectional view of a modified attachment. These are the figures of the electric toothbrush of a reference example (a: side view, b: BB sectional view).

  (An example of a form that an electric toothbrush can take)
  [1] One embodiment of the electric toothbrush according to the present invention has a mounting shaft, a main body member capable of accommodating a power source, and a flocked portion in which brush hairs are planted, and is attached to the mounting shaft and the mounting shaft A cleaning member that can be removed from the light source, a light source that is provided on a portion of the mounting shaft that is covered with the cleaning member, and that emits light toward the flocked portion, and the mounting shaft of the cleaning member. A translucent member formed of a material having a higher transmittance than that of the outer wall portion, provided between the flocked portion and the light source in an outer wall portion that is a portion covering the periphery.
  [2] According to an example of the electric toothbrush, the electric toothbrush further includes a reflecting member that reflects the light of the light source toward the translucent member.
  [3] According to an example of the electric toothbrush, the electric toothbrush further includes a vibration generating device that is a vibration source provided in the main body member, and at least a part of the vibration generating device is disposed in the mounting shaft.
  [4] According to an example of the electric toothbrush, the light source is disposed in a portion of the mounting shaft closer to the flocked portion than the vibration generating device.
  [5] According to an example of the electric toothbrush, the translucent member has a cross section parallel to the central axis of the bristle and the central axis of the main body member with respect to the central line of the main body member. It is provided on the front side of the main body, which is the side including the tip of the brush hair.
  [6] According to an example of the electric toothbrush, a front inclined portion that inclines so as to approach the center line of the main body member from the main body member side toward the flocked portion side is located on the front side of the main body of the outer wall portion. Provided in the part.
  [7] According to an example of the electric toothbrush, the flocked surface on which the bristles of the flocked portion are provided has a cross section parallel to the central axis of the bristles and the central axis of the body member. It is provided on the front side of the main body, which is the side including the tip of the bristle with respect to the center line of the main body member in the side cross section.
  [8] According to an example of the electric toothbrush, the electric toothbrush further includes a cap that covers the cleaning member, and a ventilation hole is formed in a portion of the cap that faces the front end surface of the bristles.

(Embodiment)
With reference to FIG. 1 and FIG. 2, the whole structure of the electric toothbrush 1 is demonstrated.
The electric toothbrush 1 has a toothbrush body 10 used when the user cleans his or her teeth and a cap 90 attached to the toothbrush body 10 when the user stores the toothbrush body 10.
As shown in FIG. 1A, the toothbrush main body 10 includes a main body device 20 in which various components such as a battery 29 (FIG. 3) as a power source are incorporated, and an attachment 60 for cleaning teeth. .

  The main body device 20 includes a gripping case 21 that is gripped by a user when cleaning teeth, and a main body case 22 to which each component of the main body device 20 is attached. The main body case 22 corresponds to a “main body member”.

  As shown in FIG. 1B, the main body case 22 has an attachment shaft 32 for attaching the attachment 60. The attachment shaft 32 is formed as a cylindrical part. The attachment 60 corresponds to a “cleaning member”.

  The attachment 60 can be attached to and detached from the attachment shaft 32. Moreover, it has the several bristle 61 formed with the filament, and the brush handle 70 in which the several bristle 61 was planted.

  The brush handle 70 includes a distal end portion 71 in which a plurality of brush hairs 61 are planted, and an outer wall portion 72 that covers the periphery of the attachment shaft 32 of the main body case 22. As a material constituting the brush pattern 70, a white resin material is used. Hereinafter, a portion constituted by the tip portion 71 and the brush bristles 61 is referred to as a flocked portion 62.

Here, the following are defined as directions of the electric toothbrush 1.
(A) A direction along the center line of the toothbrush main body 10 (hereinafter, “main body center line C1”) is defined as a “height direction Y”, and the height direction Y in the front view of the toothbrush main body 10 (FIG. 1A). A direction perpendicular to the depth direction Z is referred to as “depth direction Z”, and a direction perpendicular to the height direction Y in the side view of the toothbrush body 10 (FIG. 1B) is referred to as “width direction X”.
(B) In the height direction Y, the direction from the gripping case 21 toward the attachment 60 is “upward”, and in the height direction Y, the direction opposite to the upper direction is “downward”.
(C) In the depth direction Z, the direction from the root portion of the bristle 61 to the tip portion is defined as “front”, and in the depth direction Z, the direction opposite to the front is defined as “rear”.
(D) With an arbitrary position of the electric toothbrush 1 as a reference, a portion that is relatively upward in the height direction Y is referred to as “upper”, and a portion that is relatively downward in the height direction Y is referred to as “lower”. To do.
(E) With an arbitrary position of the electric toothbrush 1 as a reference, a portion relatively forward in the depth direction Z is referred to as “front side”, and a portion relatively rearward in the depth direction Z is referred to as “rear side”.
(F) A cross section (FIG. 3) parallel to the main body center line C1 and the center line of the bristles 61 is referred to as a “side cross section”.

  As shown in FIG. 1B, the main body device 20 includes an operation member 26 for switching the operation of the toothbrush main body 10. The operation member 26 is provided below the attachment shaft 32 in the height direction Y and rearward of the main body center line C1 in the depth direction Z.

  As shown in FIG. 1A, an opening portion 73 is formed in the front portion of the outer wall portion 72. The dimension of the outer wall portion 72 in the width direction X decreases in the height direction Y from the lower side to the upper side. The dimension of the opening part 73 in the height direction Y is larger than the dimension of the opening part 73 in the width direction X. The dimension of the opening portion 73 in the width direction X decreases in the height direction Y from the lower side to the upper side.

  A translucent member 80 made of ABS resin, which is a transparent resin material, is attached to the opening portion 73. The transmittance of the translucent member 80 is greater than the transmittance of the resin material of the brush handle 70.

  As shown in FIG. 1B, a front inclined portion 72A that is inclined so as to approach the main body center line C1 as it goes from below to above in the height direction Y is formed in the front portion of the outer wall portion 72. Has been. A rear inclined portion 72B is formed in the rear portion of the outer wall portion 72. The rear inclined portion 72B is inclined so as to approach the main body centerline C1 from the lower side to the upper side in the height direction. The inclination of the front inclined part 72A is larger than the inclination of the rear inclined part 72B. The translucent member 80 constitutes a part of the front inclined portion 72A. That is, the shape of the outer surface of the translucent member 80 is inclined corresponding to the shape of the outer surface of the front inclined portion 72A.

A detailed configuration of the cap 90 will be described with reference to FIG.
The cap 90 has a cylindrical peripheral wall 91 that covers the periphery of the brush handle 70 of FIG. 1 and a hemispherical upper wall 92 that covers a portion above the flocked portion 62 of FIG. 1. The upper wall 92 is configured as a design portion having a shape imitating the head of an animal.

  As shown in FIGS. 2A and 2B, two hemispherical protrusions 93 are formed on the upper portion of the upper wall 92. Two circular ventilation holes 94, an elliptical ventilation hole 95, and a curved ventilation hole 96 are formed in the front portion of the upper wall 92. The ventilation holes 94 to 96 are opposed to the front end surface of the bristle 61 in the depth direction Z (see FIG. 3).

  In the cap 90, each of the projection 93, the two ventilation holes 94, the ventilation holes 95, and the ventilation holes 96 is recognized so that an animal face is formed on the upper wall 92 when viewed from the front. The shape and formation position are defined.

  As shown in FIG. 2C, three ventilation holes 97 aligned in the height direction Y are formed in the rear portion of the cap 90. The upper ventilation hole 97 is formed in an intermediate portion of the upper wall 92. The middle ventilation hole 97 is formed in the lower end portion of the upper wall 92. The lower ventilation hole 97 is formed in the upper end portion of the peripheral wall 91. Each ventilation hole 97 is formed as an elliptical hole. The dimension in the width direction X of each ventilation hole 97 is larger than the dimension in the height direction Y of each ventilation hole 97.

  In the cap 90, the shapes and formation positions of the three ventilation holes 97 and the two protrusions 93 are defined so that it is recognized that the back of the animal is formed on the upper wall 92 when viewed from the back. ing.

With reference to FIG. 3, the structure in the toothbrush main body 10 is demonstrated.
The main body case 22 includes an inner case 40 to which a plurality of components are attached, and an outer case 30 that covers a part of the inner case 40.

  Inside the main body case 22, a control board 23 having a switch 23A and a microcomputer (hereinafter referred to as “microcomputer 23B”), a connection member 25 for connecting the battery 29 and the control board 23 as a power source to each other, and a vibration source The vibration generator 50 is provided. Moreover, the light source 27 which irradiates light toward the flocked part 62, the relay board | substrate 24 which connects the control board 23 and the light source 27 mutually, and the cover 28 which covers the light source 27 from upper direction are provided.

  A tact switch is used as the switch 23A. As the light source 27, a bullet-type light emitting diode is used. As a material of the cover 28, an ABS resin which is a transparent resin material is used.

  The switch 23A is pushed down as the operation member 26 is pushed down. The microcomputer 23 </ b> B controls the operation of the toothbrush main body 10 based on a signal input every time the switch 23 </ b> A is pressed down by a pressing operation of the operating member 26.

  The vibration generator 50 includes an electric motor 51 having an output shaft 52, an eccentric bell 53 fixed to the output shaft 52, and a transmission member 54 that transmits vibration generated by driving the electric motor 51 to the main body case 22. The center of gravity of the eccentric bell 53 is eccentric with respect to the rotation center of the output shaft 52. The transmission member 54 is fixed to the electric motor 51. The outer surface of the transmission member 54 is in contact with the rear surface 30 </ b> B of the outer case 30.

  The outer case 30 includes a cylindrical case body 31 to which the operation member 26 is attached, and an attachment shaft 32 that is continuously formed on the upper portion of the case body 31. The attachment shaft 32 is formed integrally with the case main body 31. A decorative member 33 is attached to the lower outer surface of the case body 31.

  As shown in FIG. 3B, the attachment shaft 32 is formed with three portions having different dimensions in the depth direction Z in the side cross section, that is, a distal shaft 32A, an intermediate shaft 32B, and a proximal shaft 32C. ing. Each of the shafts 32A to 32C is formed in the order of the top shaft 32A, the intermediate shaft 32B, and the base shaft 32C from the top to the bottom in the height direction Y. The dimension in the depth direction Z of the tip shaft 32A is smaller than the dimension in the depth direction Z of the intermediate shaft 32B. The dimension in the depth direction Z of the intermediate shaft 32B is smaller than the dimension in the depth direction Z of the proximal shaft 32C.

  An opening portion 32D is formed at the upper end portion of the tip shaft 32A. The cover 28 is press-fitted into the opening portion 32D. The upper surface of the cover 28 is formed as a plane along the depth direction Z and the width direction X. On the lower surface of the cover 28, a curved portion 28A that is recessed in a hemispherical shape from below to above is formed.

  As shown in FIG. 3A, the inner case 40 has five attachment parts for attaching each component, that is, a first attachment part 41, a second attachment part 42, a third attachment part 43, and a fourth attachment part. 44 and a fifth attachment portion 45. Each of the attachment portions 41 to 45 has a first attachment portion 41, a second attachment portion 42, a third attachment portion 43, a fourth attachment portion 44, and a fifth attachment portion 45 in the height direction Y from below to above. It is formed in order.

  The first attachment portion 41 is formed as a portion for attaching the battery 29. The second attachment portion 42 is formed as a portion for attaching the control board 23. The third attachment portion 43 is formed as a portion for attaching the relay substrate 24. The fourth attachment portion 44 is formed as a portion for attaching the vibration generator 50. The fifth attachment portion 45 is formed as a portion for attaching the light source 27 and as a solid quadrangular prism-shaped portion.

  As shown in FIG. 3B, a third attachment portion 43, a fourth attachment portion 44, and a fifth attachment portion 45 of the inner case 40 are accommodated inside the attachment shaft 32. That is, the relay substrate 24, the vibration generator 50, and the light source 27 are accommodated in the mounting shaft 32.

With reference to Fig.3 (a), the positional relationship of each component in the toothbrush main body 10 is demonstrated. In the side cross section, the front surface of the outer surface of the brush handle 70 is referred to as “front surface 70C”, and the rear surface of the outer surface of the brush handle 70 is referred to as “rear surface 70D”. Further, the front surface 70C of the tip portion 71 of the brush handle 70 is referred to as a “planted surface 71A”, and the rear surface 70D of the tip portion 71 is referred to as a “head back surface 71B”.
(A) The control board 23 is provided above the battery 29 in the height direction Y.
(B) The relay board 24 is provided above the control board 23 in the height direction Y.
(C) The vibration generator 50 is provided at a position overlapping with a part of the relay substrate 24 in the height direction Y.
(D) The light source 27 is provided above the relay substrate 24 and the vibration generator 50 in the height direction Y.
(E) The light source 27 is provided in the depth direction Z on the rear side of the flocked surface 71A and on the front side of the head back surface 71B.
(F) The top of the light source 27 is provided at a position corresponding to the bottom surface of the cover 28 in the height direction Y.
(G) The translucent member 80 is provided above the light source 27 and below the flocked portion 62 in the height direction Y.
(H) The lower end portion of the translucent member 80 is provided in the vicinity of the upper end portion of the mounting shaft 32 in the height direction Y.

With reference to FIG.3 (b), the detailed structure of the brush handle 70 is demonstrated.
Each part of the brush handle 70 in the side cross section is defined as follows.
(A) Let the edge part by the side of the bristle 61 of a longitudinal direction be "tip 70A."
(B) An end portion on the main body device 20 side in the longitudinal direction is referred to as a “base end 70B”.
(C) A length along the front surface 70C from the distal end 70A to the base end 70B is defined as a “front surface length V”.
(D) A length along the rear surface 70D from the distal end 70A to the proximal end 70B is defined as a “rear surface length W”.
(E) A portion corresponding to a portion between the boundary between the outer wall portion 72 and the tip portion 71 and the upper portion of the light source 27 in the front inclined portion 72A is referred to as an “upper inclined portion 72AU”.
(F) The portion corresponding to the vibration generator 50 and the light source 27 in the front inclined portion 72A is referred to as a “lower inclined portion 72AL”.
(G) A portion corresponding to a portion between the boundary between the outer wall portion 72 and the tip portion 71 and the upper portion of the light source 27 in the rear inclined portion 72B is referred to as an “upper inclined portion 72BU”.
(H) A portion corresponding to the vibration generator 50 and the light source 27 in the rear inclined portion 72B is referred to as a “lower inclined portion 72BL”.

  In the depth direction Z, the flocked surface 71A is formed in front of the main body center line C1 and on the rear side of the front inclined portion 72A. The head back surface 71B is formed in the depth direction Z on the rear side of the main body center line C1 and on the front side of the rear inclined portion 72B. The rear wall length W is smaller than the front wall length V.

  The front inclined portion 72A is formed in front of the main body center line C1. Further, the height direction Y is inclined from the front side to the rear side in the depth direction Z as it goes from the lower side to the upper side. Moreover, the inclination degree of the part between the outer wall part 72 and upper side inclination part 72AU is larger than the inclination degree of lower side inclination part 72AL.

  The rear inclined portion 72B is formed on the rear side of the main body center line C1. Further, the height direction Y is inclined from the rear side to the front side in the depth direction Z as it goes from the lower side to the upper side. Further, the inclination degree of the upper inclined portion 72BU is larger than the inclination degree of the lower inclined portion 72BL.

  The inclination degree of the upper inclination part 72AU of the front inclination part 72A is larger than the inclination degree of the upper inclination part 72BU of the rear inclination part 72B. The inclination of the lower inclined part 72AL of the front inclined part 72A is smaller than the inclination of the upper inclined part 72BU of the rear inclined part 72B.

With reference to FIG. 3, the detailed structure of the main body apparatus 20 is demonstrated.
In the side cross section, each part of the main device 20 is defined as follows.
(A) The front surface of the outer surface of the main body case 22 is referred to as a “front surface 22A”.
(B) The rear surface of the outer surface of the main body case 22 is referred to as a “rear surface 22B”.
(C) The front surface of the outer surface of the outer case 30 is referred to as a “front surface 30A”.
(D) The rear surface of the outer surface of the outer case 30 is referred to as a “rear surface 30B”.
(E) The front surface of the outer surface of the inner case 40 is referred to as a “front surface 40A”.
(F) The rear surface of the outer surface of the inner case 40 is referred to as a “rear surface 40B”.
(G) The length of the portion of the front surface 22A facing the gripping case 21 is defined as “front wall length P”.
(H) The length of the portion of the rear surface 22B facing the gripping case 21 is defined as “rear wall length Q”.

  As shown in FIG. 3A, the front surface 22A includes a front surface 30A and a front surface 40A. The rear surface 22B includes a rear surface 30B and a rear surface 40B. The rear wall length Q is smaller than the front wall length P. The front wall length P and the rear wall length Q indicate the lengths of the portions of the front surface 22A and the rear surface 22B that directly face the inner surface of the gripping case 21.

  As shown in FIG. 3B, the front surface 30 </ b> A of the outer case 30 is provided in front of the front surface 40 </ b> A of the inner case 40. The front surface 70C of the brush handle 70 is provided in front of the front surface 30A. A step portion 34 is formed at a connection portion between the case body 31 and the mounting shaft 32. The lower end surface of the brush handle 70 is opposed to the upper surface of the step portion 34.

With reference to Fig.3 (a), the seal structure of the toothbrush main body 10 is demonstrated.
A grip-side sealing member 22 </ b> C that seals between the gripping case 21 and the main body case 22 is provided at the attachment portion of the gripping case 21 and the main body case 22. The grip-side seal member 22 </ b> C is attached to the inner case 40. Further, in the height direction Y, it is attached above the first attachment portion 41 and below the upper end surface of the gripping case 21.

  A body-side sealing member 22 </ b> D that seals between the outer case 30 and the inner case 40 is provided at a portion where the outer case 30 and the inner case 40 are attached. The main body side sealing member 22 </ b> D is attached to the inner case 40. Further, in the height direction Y, it is attached above the upper end surface of the gripping case 21 and below the second attachment portion 42.

With reference to FIG. 4, the detailed structure of the translucent member 80 is demonstrated.
As shown in FIG. 4A, the translucent member 80 is configured to move the translucent member 80 forward relative to the brush portion 70 and the window portion 81 inserted into the opening portion 73 of the brush handle 70 of FIG. 1. It has an external retaining portion 82 that regulates and an internal retaining portion 83 that regulates the downward movement of the translucent member 80 relative to the brush handle 70. The external retaining portion 82 is formed at the upper end portion and the lower end portion of the window portion 81.

  As shown in FIG. 4B, the internal retaining portion 83 is formed on the rear side of the window portion 81. A hook 83 </ b> A that is hooked on the brush handle 70 is formed at the tip of the internal retaining portion 83. The dimension in the height direction Y of the internal retaining part 83 is larger than the dimension in the width direction X of the internal retaining part 83.

  As shown in FIG. 4 (c), at both ends in the width direction X of the window portion 81, the blade portion 84 protruding from the end portion of the window portion 81 and the lower side of the translucent member 80 with respect to the brush handle 70. A fitting portion 85 that restricts movement is formed.

With reference to FIG. 5, the detailed structure inside the brush handle 70 will be described.
The brush handle 70 has a fitting portion 74 on which the hook 83A in FIG. 4 is hooked, a protruding portion 75 to be fitted in the fitting portion 85 in FIG. 4, and a flat insertion portion 76 in which the blade portion 84 is inserted. . The insertion portions 76 are separated from each other in the depth direction Z.

With reference to FIG. 4 and FIG. 5, the attachment procedure of the translucent member 80 is demonstrated.
The translucent member 80 is attached to the brush handle 70 by the following procedure.
(A) The translucent member 80 is inserted into the inside from the opening at the lower end of the brush handle 70.
(B) The hook 83 </ b> A of the internal retaining portion 83 is hooked on the fitting portion 74.
(C) The fitting portion 85 is fitted into the protruding portion 75 of the brush handle 70.
(D) Each blade portion 84 is inserted into each insertion portion 76 of the brush handle 70.

The operation of the light source 27 will be described with reference to FIG.
When voltage is applied to the light source 27 under the control of the microcomputer 23B, light is emitted from the light source 27. The light emitted from the light source 27 illuminates the interior of the brush handle 70 through the cover 28. Further, the flocked portion 62 and the vicinity thereof are illuminated through the translucent member 80.

The control of the toothbrush body 10 will be described with reference to FIGS. 1 and 3.
The microcomputer 23B includes a mode control for controlling the operation of the toothbrush body 10 according to the operation of the operation member 26, a rotation speed control for adjusting the rotation speed of the electric motor 51, and a timer control for managing the operation time of the toothbrush body 10. To do.

  In the mode control, the operation mode of the toothbrush body 10 is switched according to the operation of the operation member 26. As an operation mode of the toothbrush body 10, a first operation mode and a second operation mode are prepared in advance. In the first operation mode, the light source 27 is turned on and the electric motor 51 is driven. In the second operation mode, the light source 27 is turned off and the electric motor 51 is driven.

The microcomputer 23B switches the operation mode as follows.
(A) When the operation of depressing the operation member 26 is performed once in a state where the power is off, the first operation mode is changed from the state where the power is off.
(B) When the operation member 26 is depressed once in the state where the first operation mode is selected, the operation mode is changed from the first operation mode to the second operation mode.
(C) When the operation member 26 is depressed once in the state in which the second operation mode is selected, the power source is changed from the state in which the second operation mode is selected to the off state.

  The microcomputer 23B performs rotational speed control when the first operation mode or the second operation mode is selected. In the rotational speed control, the rotational speed of the electric motor 51 is maintained within a predetermined range by changing the drive voltage of the electric motor 51 by PWM control. That is, the magnitude of vibration generated by the rotation of the electric motor 51 is maintained within a predetermined range.

In the rotational speed control, the duty ratio of the voltage of the electric motor 51 is changed as follows.
(A) When the measured value of the voltage of the battery 29 is higher than the reference voltage, the duty ratio is reduced according to the difference between the drive voltage of the electric motor 51 and the reference voltage.
(B) When the measured value of the voltage of the battery 29 is lower than the reference voltage, the duty ratio is increased according to the difference between the drive voltage of the electric motor 51 and the reference voltage.
(C) When the measured value of the voltage of the battery 29 is equal to the reference voltage, the duty ratio is maintained.

  The reference voltage is set in advance as a drive voltage when vibration of a predetermined range is generated by the rotation of the electric motor 51. Here, the reference voltage is set as one set value, but the reference voltage can also be set as a voltage range in which vibration of the predetermined range is generated.

  In the timer control, the power supply is forcibly turned off according to the time during which the first operation mode or the second operation mode is continuously selected. That is, even if the operation member 26 is not operated, the operation of the toothbrush body 10 is stopped based on the establishment of the predetermined condition.

Specifically, the operation mode is changed as follows.
(A) When changing from a power-off state to a state in which the first operation mode is selected, counting of an elapsed time (hereinafter referred to as “first operation time TA”) after the selection of the first operation mode is started. . Then, when the first operation time TA is equal to or longer than the determination time TAX, the power is turned off.
(B) When the first operation mode is changed to the second operation mode, counting of the elapsed time after the change of the operation mode (hereinafter, “second operation time TB”) is started. Then, when the second operation time TB is equal to or longer than the determination time TBX, the power is turned off.

  The determination time TAX is set in advance as a time within a range in which it is preferable to continuously apply vibration to the teeth in the first operation mode. The determination time TBX is set in advance as a time within a range in which it is preferable to continuously apply vibrations to the teeth in the second operation mode. The determination time TAX and the determination time TBX can be set to the same value or different values.

(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 light source 27 is provided on the mounting shaft 32. According to this configuration, since the position of the light source 27 in the main body device 20 is close to the flocked portion 62, the flocked portion 62 can be made brighter.

(2) In the electric toothbrush 1, the light source 27 irradiates light toward the flocked portion 62. According to this configuration, the effect (1) is further enhanced.
(3) In the electric toothbrush 1, the translucent member 80 is provided on the front surface 70C of the brush handle 70. According to this configuration, the effect (1) is further enhanced.

  (4) In the electric toothbrush 1, the translucent member 80 is attached to the upper inclined portion 72AU of the front inclined portion 72A of the brush handle 70. According to this configuration, as compared with the configuration in which the translucent member 80 is attached to another portion of the brush handle 70, for example, the lower inclined portion 72AL of the front inclined portion 72A or the side wall of the brush handle 70, the above (1). The effect becomes higher.

  (5) In the electric toothbrush 1, the vibration generator 50 is accommodated in the mounting shaft 32. According to this configuration, the dimension in the height direction Y of the toothbrush main body 10 can be reduced as compared with the configuration in which the vibration generating device 50 is provided below the attachment shaft 32.

  (6) In the electric toothbrush 1, the flocked surface 71A of the brush handle 70 is located in front of the main body center line C1. According to this configuration, the front surface 70C of the outer wall portion 72 is less likely to come into contact with the teeth when cleaning the teeth, as compared with the configuration in which the flocked surface 71A is located on the rear side of the main body center line C1. Moreover, the dimension of the attachment shaft 32 in the depth direction Z can be increased as compared with the configuration in which the flocked surface 71A is located on the rear side of the main body center line C1. For this reason, by forming a large space inside the mounting shaft 32, a space for arranging components such as the vibration generator 50 and the light source 27 can be increased.

  (7) In the electric toothbrush 1, the ventilation holes 94 to 96 of the cap 90 face the tip surface of the brush bristles 61. According to this configuration, air flowing into the cap 90 from the outside of the cap 90 through the ventilation holes 94 to 96 can easily touch the brush bristles 61, so that the cap 90 is attached to the toothbrush body 10. It is suppressed that the bristle 61 becomes difficult to dry.

  (8) In the electric toothbrush 1, the external retaining portion 82 and the blade portion 84 of the translucent member 80 are fitted into the peripheral portion or the insertion portion 76 of the opening portion 73 of the brush handle 70, respectively. According to this configuration, the translucent member 80 is prevented from dropping out of the brush handle 70.

  (9) In the electric toothbrush 1, the internal retaining portion 83 and the fitting portion 85 of the translucent member 80 are fitted into the fitting portion 74 or the protrusion of the brush handle 70, respectively. According to this structure, it is suppressed that the attachment position of the translucent member 80 with respect to the brush handle 70 shifts | deviates from a regulation position. Further, the translucent member 80 is prevented from dropping from the opening portion 73 and moving to the outside of the brush handle 70.

  (10) In the electric toothbrush 1, the lower end portion of the translucent member 80 is provided in the vicinity of the upper end portion of the mounting shaft 32. According to this configuration, when the translucent member 80 is dropped from the opening portion 73, the downward movement of the translucent member 80 with respect to the brush handle 70 is restricted by the mounting shaft 32. Further, compared to the configuration in which the lower end portion of the translucent member 80 is provided at a position that is greatly separated from the upper end portion of the mounting shaft 32, the amount of downward movement of the translucent member 80 with respect to the brush handle 70 is reduced.

  (11) In the electric toothbrush 1, the cover 28 is press-fitted into the opening portion 32 </ b> D of the mounting shaft 32. According to this configuration, water and dust are prevented from entering the mounting shaft 32 through the gap between the cover 28 and the opening portion 32 </ b> D.

  (12) In the electric toothbrush 1, the operation member 26 is provided on the side opposite to the brush bristles 61 with respect to the main body center line C1 in the side cross section. According to this configuration, when the user of the electric toothbrush 1 cleans another person's teeth with the toothbrush 1, the operation member 26 is positioned on the user side. For this reason, the operation of the operation member 26 is facilitated as compared with the configuration in which the operation member 26 is provided on the same side as the bristles 61 with respect to the main body center line C1 in the side cross section.

  (13) The toothbrush body 10 of the electric toothbrush 1 has a first operation mode and a second operation mode as operation modes. According to this configuration, the user can select the second operation mode when the light source 27 does not need to be turned on. Thereby, the power consumption of the toothbrush main body 10 can be reduced.

  (14) The microcomputer 23 </ b> B of the electric toothbrush 1 performs rotation speed control for controlling the rotation speed of the electric motor 51. According to this configuration, when the first operation mode or the second operation mode is selected, it is possible to stabilize the feeling of brushing that the user receives.

  (15) The microcomputer 23B of the electric toothbrush 1 performs timer control for forcibly turning off the power. According to this configuration, the vibration of the electric motor 51 is suppressed from being applied to the teeth for a long time. Further, when the user forgets to change the power supply of the toothbrush body 10 from on to off after cleaning the teeth, the power is turned off by the microcomputer 23B. For this reason, it is suppressed that the electric power of the toothbrush main body 10 is consumed unnecessarily.

  (16) In the electric toothbrush 1, the rear wall length W of the brush handle 70 is smaller than the front wall length V. According to this configuration, the vibration of the vibration generator 50 is easily transmitted to the rear surface 70 </ b> D of the brush handle 70.

  (17) In the electric toothbrush 1, the transmission member 54 of the vibration generator 50 is in contact with the wall portion of the outer case 30. According to this configuration, the vibration of the vibration generating device 50 is easily transmitted to the rear inclined portion 72B of the brush handle 70.

  (18) In the electric toothbrush 1, the rotation shaft of the electric motor 51 is biased to the rear side with respect to the center line of the gripping case 21, so that vibration due to the rotation of the electric motor 51 is behind the gripping case 21. Easy to be transmitted to the side wall. On the other hand, the rear wall length Q of the main body case 22 is smaller than the front wall length P. For this reason, as compared with a configuration in which the rear wall length Q is larger than the front wall length P, vibration is less likely to be transmitted to the rear wall portion of the gripping case 21. That is, vibration applied to the user's hand from the gripping case 21 is small.

  Thus, according to the electric toothbrush 1, after adopting a configuration in which the rotation shaft of the electric motor 51 is biased rearward with respect to the center line of the gripping case 21, The transmitted vibration can be reduced.

(19) The effect obtained by the electric toothbrush 1 will be described based on a comparison with an electric toothbrush (hereinafter referred to as “first comparative toothbrush”) as a comparative example. The first comparative toothbrush is different from the electric toothbrush 1 in the following points, and has the same configuration as the electric toothbrush 1 in other points.
(A) The light source 27 is omitted from the mounting shaft 32.
(B) The physique of the mounting shaft 32 is smaller than that of the electric toothbrush 1.
(C) The inclination degree of the front inclined portion 72 </ b> A of the brush handle 70 is larger than that of the electric toothbrush 1.
(D) The inclination degree of the rear inclined portion 72 </ b> B of the brush handle 70 is smaller than that of the electric toothbrush 1.
(E) The flocked portion 62 is located behind the electric toothbrush 1 in the depth direction Z. That is, the flocked surface 71 </ b> A is located behind the electric toothbrush 1 in the depth direction Z.

  In the first comparative toothbrush, since the light source 27 is omitted, it is not necessary to secure a space for arranging the light source 27 in the mounting shaft 32. For this reason, the physique of the mounting shaft 32 is smaller than the electric toothbrush 1. Further, as the size of the mounting shaft 32 is small, the space for arranging the mounting shaft 32 in the brush handle 70 is reduced. Further, since the space in the brush handle 70 is small, a portion corresponding to the attachment shaft 32 in the front inclined portion 72A is formed at a position closer to the main body center line C1.

  As a result, the degree of bulging forward of the front inclined portion 72A of the portion corresponding to the mounting shaft 32 in the depth direction Z is smaller than that of the electric toothbrush 1, and the degree of inclination of the front inclined portion 72A of the portion corresponding to the mounting shaft 32 Becomes larger than the electric toothbrush 1.

  Further, the flocked portion 62 is formed on the rear side of the electric toothbrush 1 so that the flocked surface 71A is positioned on the rear side of the main body center line C1 in accordance with the change in the inclination of the front inclined portion 72A. Further, the inclination degree of the rear inclined portion 72 </ b> B becomes smaller than that of the electric toothbrush 1 according to the position of the flocked portion 62. That is, the rear inclined portion 72B of the first comparative toothbrush is configured as a portion having a smaller inclination degree with respect to the main body center line C1 than the rear inclined portion 72B of the electric toothbrush 1.

  When the electric toothbrush 1 is based on the first comparative toothbrush, it can be considered that the light source 27 is provided on the mounting shaft 32 and the following changes are made to the first comparative toothbrush. it can.

  That is, in order to secure a space for arranging the light source 27 in the mounting shaft 32, the size of the mounting shaft 32 is made larger than that of the first comparative toothbrush. Further, as the size of the mounting shaft 32 is increased, the space for arranging the mounting shaft 32 in the brush handle 70 is increased.

  For this reason, compared with the first comparative toothbrush, a portion corresponding to the mounting shaft 32 in the front inclined portion 72A is formed at a position further away from the main body center line C1. Further, in the depth direction Z, the front bulge degree of the front inclined portion 72A of the portion corresponding to the mounting shaft 32 is made larger than that of the first comparative toothbrush, and the front inclined portion 72A of the portion corresponding to the mounting shaft 32 is inclined. The degree is smaller than that of the first comparative toothbrush.

  Here, in the electric toothbrush 1, the flocked portion 62 can be formed so that the flocked surface 71 </ b> A is located on the rear side of the main body center line C <b> 1, as in the first comparative toothbrush. 1, the flocked portion 62 is formed so that the flocked surface 71 </ b> A is positioned in front of the main body center line C <b> 1 as described above. That is, the flocked portion 62 is formed in front of the flocked portion 62 of the first comparative toothbrush. Further, the rear inclined portion 72B is formed closer to the main body center line C1 than the first comparative toothbrush according to the setting of the formation position of the flocked portion 62. For this reason, the inclination degree of the rear side inclined portion 72B is larger than that of the first comparative toothbrush.

  And by setting the position of the flocked portion 62 so that the flocked surface 71A is positioned on the front side of the main body center line C1, the flocked portion is positioned so that the flocked surface 71A is positioned on the rear side of the main body center line C1. Compared with another comparative toothbrush having the position 62 (hereinafter referred to as “second comparative toothbrush”), the following advantageous effects can be obtained. The second comparative toothbrush has the same configuration as the electric toothbrush 1 except that the position of the flocked surface 71A is different as described above.

  In the second comparative toothbrush, since the degree of bulging forward of the front inclined portion 72A of the portion corresponding to the mounting shaft 32 is larger than that of the first comparative toothbrush, the front inclined portion 72A comes into contact with the teeth when cleaning the teeth. It becomes easy.

  On the other hand, in the electric toothbrush 1, the degree of bulging forward of the front inclined portion 72A of the portion corresponding to the mounting shaft 32 is the same as that of the second comparative toothbrush, while the flocked surface 71A is deeper than the second comparative toothbrush. Since it is formed on the front side in the direction Z, that is, the flocked surface 71A is formed on the front side in the depth direction Z with respect to the main body center line C1, the front inclined portion is compared with the second comparative toothbrush when cleaning the teeth. The risk of 72A coming into contact with the teeth is reduced.

  In addition, by making the length of the bristle 61 long in the second comparative toothbrush, it is possible to suppress the front inclined portion 72A from coming into contact with the teeth. However, in this case, the length of the brush bristles 61 is longer than a preferable length set in advance, and the user may feel uncomfortable in this respect. On the other hand, the electric toothbrush 1 has the effect of suppressing the front inclined portion 72A from contacting the teeth by setting the formation position of the flocked surface 71A to the front side of the first comparison toothbrush as described above. can get. For this reason, unlike the 2nd comparison toothbrush, about the length of the bristle 61, a preferable length can be set.

(Other embodiments)
The embodiment of the present invention is not limited to the contents of the above embodiment, and can be modified as follows, for example. Further, the following modified examples are not applied only to the above embodiment, and different modified examples can be implemented in combination with each other.

In the above embodiment (FIG. 2), a strap can be attached to the cap 90. Specific examples of this configuration include the following (A) to (D).
(A) As shown in FIG. 6A, a through hole 93 </ b> A is formed in each protrusion 93 of the cap 90. Then, the strap 98 is attached to the through hole 93A.
(B) A through hole 93 </ b> A is formed only in one protrusion 93 of the cap 90. Then, the strap 98 is attached to the through hole 93A.
(C) As shown in FIG. 6B, the strap 98 is attached to the cap 90 by inserting the strap 98 into the ventilation hole 94 and the ventilation hole 97.
(D) The strap 98 is attached to the cap 90 by inserting the strap 98 into at least two of the ventilation holes 94 to 97.

  -In the said embodiment (FIG. 3), the reflection member which reflects the light of the light source 27 to the brush handle 70 can also be provided. A specific example of this configuration is shown in FIG. In the brush handle 70 of FIG. 7, the reflective member 100 is provided on the rear inclined portion 72B. The reflecting member 100 reflects the light from the light source 27 toward the light transmitting member 80. According to this configuration, the front side of the attachment 60 can be further brightened by the light from the light source 27.

  In the embodiment (FIG. 3), a bullet-type light emitting diode is used as the light source 27, but it can be changed to a chip-type light emitting diode. Further, the type of the light source 27 can be changed to an incandescent bulb or a discharge bulb.

In the above embodiment (FIG. 3), the cover 28 is fixed to the mounting shaft 32 by press fitting, but the cover 28 can also be fixed to the mounting shaft 32 by ultrasonic welding.
In the above embodiment (FIG. 3), the upper surface of the cover 28 is formed as a flat surface, but the shape of the upper surface of the cover 28 is not limited to this. For example, it can be changed to a curved surface shape protruding upward in the height direction Y. Moreover, it can also change into the inclined surface which inclines toward the upper direction of the height direction Y as it goes to the back of the depth direction Z.

  In the above embodiment (FIG. 1), the curved portion 28A is formed on the cover 28, but the curved portion 28A may be omitted from the cover 28 and the lower surface of the cover 28 may be formed as a flat surface. According to this configuration, since the light emitted from the light source 27 is suppressed from spreading in the width direction X and the depth direction Z through the cover 28, the effect of brightening the flocked portion 62 is enhanced.

  In the above embodiment (FIG. 1), ABS resin is used as the material for the cover 28 and the translucent member 80, but the material for the cover 28 and the translucent member 80 is not limited to this. For example, polycarbonate or polypropylene can be used as the material of at least one of the cover 28 and the translucent member 80. When polycarbonate is used, the transmittance of the cover and the translucent member is higher than when ABS resin is used. Further, when polypropylene is used, chemical resistance is higher than when ABS resin is used.

  -In the said embodiment (FIG. 3), the opening part 73 and the translucent member 80 of the brush handle 70 can also be abbreviate | omitted. Even in this configuration, the effects (1), (2), (5) to (7), and (11) to (19) of the above embodiment can be obtained.

  In the embodiment (FIG. 3), the opening portion 73 is formed in the front inclined portion 72A of the brush handle 70, but the formation position of the opening portion 73 is not limited to the front surface 70C. For example, the opening portion 73 can be formed in the rear inclined portion 72B of the brush handle 70.

  In the above embodiment (FIG. 3), the entire vibration generator 50 is accommodated in the mounting shaft 32, but a part of the vibration generating device 50 can be provided below the mounting shaft 32. Further, the entire vibration generator 50 can be provided below the attachment shaft 32.

  -The following 3rd operation mode can also be added with respect to the said embodiment (FIG. 3). In the third operation mode, the light source 27 is turned on and the electric motor 51 is stopped. Further, the selection order of the third operation mode according to the operation of the operation member 26 may be set to either before the first operation mode, after the first operation mode, or after the second operation mode. it can.

  -The following 11th operation mode and 12th operation mode can also be added with respect to the said embodiment (FIG. 3). A modification example in which these operation modes are added is referred to as a mode addition modification example A.

  The eleventh operation mode imparts stronger vibration to the teeth than the first operation mode. In the twelfth operation mode, vibrations that are weaker than those in the first operation mode are applied to the teeth. In the eleventh operation mode and the twelfth operation mode, the light source 27 is turned on similarly to the first operation mode.

  The microcomputer 23B controls the rotational speed as follows when the eleventh operation mode and the twelfth operation mode are selected. In the rotation speed control when the first operation mode is selected, a predetermined range set as a target range of the rotation speed of the electric motor 51 is set as an “intermediate predetermined range”.

  (A) When the eleventh operation mode is selected, the rotational speed of the electric motor 51 is maintained within a predetermined range larger than the intermediate predetermined range by changing the drive voltage of the electric motor 51 by PWM control.

  (B) When the twelfth operation mode is selected, the rotation speed of the electric motor 51 is maintained within a predetermined range smaller than the intermediate predetermined range by changing the drive voltage of the electric motor 51 by PWM control.

In Mode Addition Modification A, any one of the first operation mode, the eleventh operation mode, and the twelfth operation mode can be omitted.
In the mode addition modification A, the user can add another operation member for changing the operation mode from the first operation mode to the eleventh operation mode or the twelfth operation mode. In this case, for the operation of the operation member 26, the microcomputer 23B changes the operation mode, turns on the power, and turns off the power as in the above embodiment. The operation mode is changed in the order of the eleventh operation mode, the twelfth operation mode, and the first operation mode each time the other operation member is operated in a state where the first operation mode is selected. In addition, the selection order of the operation mode with respect to the operation of the other operation member is not limited to the above example, and an arbitrary one can be set in advance.

  -The following 21st operation mode and 22nd operation mode can also be added with respect to the said embodiment (FIG. 3). A modification example in which these operation modes are added is referred to as a mode addition modification example B.

  In the 21st operation mode, a stronger vibration is applied to the teeth than in the second operation mode. In the 22nd operation mode, vibration weaker than that in the second operation mode is applied to the teeth. In the 21st operation mode and the 22nd operation mode, the light source 27 is turned off as in the second operation mode.

  When the twenty-first operation mode is selected, the microcomputer 23B performs the rotation speed control in the same manner as when the eleventh operation mode is selected. Further, when the 22nd operation mode is selected, the rotational speed control is performed in the same manner as when the 12th operation mode is selected.

In the mode addition modification B, any one of the second operation mode, the twenty-first operation mode, and the twenty-second operation mode can be omitted.
In the above-described mode addition modification B, the user can add another operation member for changing the operation mode from the second operation mode to the twenty-first operation mode or the twenty-second operation mode. As a method for selecting an operation mode for the operation of another operation member, a method according to the mode addition modification A can be adopted.

  The mode addition modification A and the mode addition modification B can be implemented in combination. In this case, a configuration in which another operation member of the mode addition modification A and another operation member of the mode addition modification B are individually provided or a configuration in which two other operation members are shared is adopted. Can do.

  In the above embodiment (FIG. 3), the vibration generator 50 is provided in the toothbrush main body 10, but the vibration generator 50 can be omitted from the toothbrush main body 10. In this case, the configuration for attaching the vibration generating device 50 to the main body case 22 can also be omitted.

  In short, if the electric toothbrush has a function of illuminating the flocked portion with a light source, the present invention can be applied even if it does not have a function of imparting vibration to the teeth. Also in this configuration, by applying the specific configuration of the present invention to the electric toothbrush in a manner according to the above embodiment, (1) to (4) and (6) to (15) of the embodiment. And the effect according to the effect of (19) is acquired.

(Reference example 1 of an electric toothbrush)
In FIG. 8, the other electric toothbrush which changed a part of structure of the electric toothbrush 1 is shown. In addition, in the other electric toothbrush, about the component which is common in the electric toothbrush 1, the code | symbol similar to the code | symbol attached | subjected to the component of the electric toothbrush 1 is attached | subjected.

This electric toothbrush has the toothbrush main body 10 and the cap 90 of FIG. Further, the configuration of the electric toothbrush 1 is different in the following points.
(A) A stain care attachment 110 is provided at the tip of the attachment shaft 32 instead of the light source 27.
(B) The tip shaft 32A of the mounting shaft 32 and the cover 28 are omitted.
(C) The translucent member 80 is omitted from the attachment 60.
(D) From the brush handle 70, the opening part 73, the fitting part 74, the protrusion part 75, and the insertion part 76 are omitted.
(E) A top wall 32E is formed on the intermediate shaft 32B of the mounting shaft 32.
(F) On the top wall 32E of the attachment shaft 32, an attachment portion 32F for attaching the stain care attachment 110 is formed.

The stain care attachment 110 can be attached to and detached from the attachment shaft 32. Moreover, it has the base 111 attached to the attachment part 32F, and the grinding | polishing part 112 which protrudes upwards from the base 111. As shown in FIG.
In the electric toothbrush of Reference Example 1, when the attachment 60 is attached to the main body case 22, the stain care attachment 110 is accommodated in the space in the attachment 60. When the attachment 60 is removed from the main body case 22, the stain care attachment 110 can be used.

  (Reference example 2 of an electric toothbrush)
  In the electric toothbrush of Reference Example 1, instead of the stain care attachment 110, another functional member having a function related to tooth cleaning can be provided on the attachment shaft 32. Examples of the functional member include a gum output attachment, a point brushing toothbrush, a nail brushing attachment, an interdental brush, a dentifrice tube, a bell for vibration adjustment, and a sound output device that outputs a warning sound.

  (Additional note regarding means for solving the problem)
  (Appendix 1)
  An electric toothbrush comprising a main body member for accommodating a power source and a cleaning member having a flocked portion in which brush hairs are planted, and capable of attaching the cleaning member to the main body member and removing the cleaning member from the main body member In
  An attachment shaft for attaching the cleaning member is provided on the main body member;
  In addition, a light source is provided in a portion of the mounting shaft that is covered with the cleaning member.
  Electric toothbrush characterized by.
  (Appendix 2)
  In the electric toothbrush according to appendix 1,
  A vibration generator serving as a vibration source is provided in the main body member;
  In addition, at least a part of the vibration generator is provided in the mounting shaft.
  Electric toothbrush characterized by.
  (Appendix 3)
  In the electric toothbrush according to appendix 2,
  The light source is provided in a portion of the mounting shaft that is closer to the flocked portion than the vibration generator.
  Electric toothbrush characterized by.
  (Appendix 4)
  In the electric toothbrush according to any one of appendices 1 to 3,
  The light source emits light toward the flocked part
  Electric toothbrush characterized by.
  (Appendix 5)
  In the electric toothbrush according to appendix 4,
  The cleaning member is provided with an outer wall portion covering the periphery of the mounting shaft and the flocked portion,
  And the translucent member which is easy to permeate | transmit light is provided in the part between the said flocked part of the said outer wall part and the said light source.
  Electric toothbrush characterized by.
  (Appendix 6)
  In the electric toothbrush according to appendix 5,
  A cross-section parallel to the central axis of the bristle and the central axis of the main body member is a side cross-section, and the side including the tip portion of the bristle with respect to the central line of the main body member in this side cross-section is the front side of the main body. The translucent member is provided on a portion of the outer wall portion on the front side of the main body.
  Electric toothbrush characterized by.
  (Appendix 7)
  In the electric toothbrush according to appendix 6,
  Of the outer wall portion, a portion on the front side of the main body is provided with a front side inclined portion that is inclined so as to approach the center line of the main body member from the main body member side toward the flocked portion side.
  Electric toothbrush characterized by.
  (Appendix 8)
  In the electric toothbrush according to any one of appendices 5 to 7,
  There is provided a reflecting member that reflects the light from the light source toward the translucent member.
  Electric toothbrush characterized by.
  (Appendix 9)
  In the electric toothbrush according to any one of appendices 1 to 8,
  Including a cap covering the cleaning member;
  And a cross section parallel to the central axis of the bristle and the central axis of the main body member is defined as a side cross section, and the side including the tip portion of the bristle with respect to the central line of the main body member in the side cross section is the front side of the main body The surface of the flocked portion where the brush hair is provided is a flocked surface, and the flocked surface is provided on the front side of the main body.
  Electric toothbrush characterized by.
  (Appendix 10)
  In the electric toothbrush according to any one of appendices 1 to 9,
  Including a cap covering the cleaning member;
  In addition, a ventilation hole is formed in a portion of the cap that faces the tip surface of the bristles.
  Electric toothbrush characterized by.

  1: Electric toothbrush
  10: Toothbrush body
  20: Main unit
  21: gripping case
  22: Main body case (main body member)
  22A: Front
  22B: Rear surface
  22C: Gripping side seal member
  22D: Main body side sealing member
  23: Control board
  23A: Switch
  23B: Microcomputer
  24: Relay board
  25: Connection member
  26: Operation member
  27: Light source
  28: Cover
  28A: curved portion
  29: Battery (power supply)
  30: Outer case
  30A: Front
  30B: Rear side
  31: Case body
  32: Mounting shaft
  32A: Tip shaft
  32B: Intermediate shaft
  32C: proximal shaft
  32D: Opening portion
  32E: Top wall
  32F: Mounting part
  33: Decoration member
  34: Stepped portion
  40: Inner case
  40A: Front
  40B: rear surface
  41: First mounting portion
  42: second mounting portion
  43: Third mounting portion
  44: Fourth mounting portion
  45: Fifth mounting part
  50: Vibration generator
  51: Electric motor
  52: Output shaft
  53: Eccentric bell
  54: Transmission member
  60: Attachment (cleaning member)
  61: Brush hair
  62: Flocked part
  70: Brush pattern
  70A: tip
  70B: Base end
  70C: Front
  70D: rear surface
  71: tip portion
  71A: Flocked surface
  71B: back of head
  72: outer wall portion
  72A: Front inclined portion
  72AL: Lower inclined part
  72AU: Upper inclined part
  72B: Rear inclined portion
  72BL: Lower inclined part
  72BU: Upper inclined part
  73: Opening portion
  74: fitting portion
  75: protruding portion
  76: Insertion part
  80: Translucent member
  81: Window portion
  82: External retaining portion
  83: Internal retaining portion
  83A: Hook
  84: Feather part
  85: Fitting portion
  90: Cap
  91: Circumferential wall
  92: Upper wall
  93: protrusion
  93A: Through hole
  94: Ventilation hole
  95: Ventilation hole
  96: Ventilation hole
  97: Ventilation hole
  98: Strap
  100: Reflecting member
  110: Stain care attachment
  111: Base
  112: Polished portion
  C1: Body center line
  P: Front wall length
  Q: Length of rear wall
  V: Front wall length
  W: Length of rear wall
  X: width direction
  Y: Height direction
  Z: Depth direction
  TA: First operation time
  TB: Second operation time
  TAX: Judgment time
  TBX: Judgment time

Claims (8)

  A body member having a mounting shaft and capable of accommodating a power source;
  A cleaning member having a flocked portion in which brush hairs are planted, attachable to the attaching shaft, and removable from the attaching shaft;
  A light source that is provided in a portion of the mounting shaft that is covered by the cleaning member, and that emits light toward the flocked portion;
  A translucent member formed of a material having a higher transmittance than the outer wall portion, provided between the flocked portion and the light source in an outer wall portion that is a portion covering the periphery of the mounting shaft of the cleaning member; With
  electric toothbrush.   A reflection member that reflects the light from the light source toward the translucent member;
  The electric toothbrush according to claim 1.   The apparatus further includes a vibration generator that is a vibration source provided in the main body member,
  At least a portion of the vibration generator is disposed within the mounting shaft.
  The electric toothbrush according to claim 1 or 2.   The light source is disposed in a portion of the mounting shaft that is closer to the flocked portion than the vibration generator.
  The electric toothbrush according to claim 3.   The translucent member is a main body on a side cross section parallel to the central axis of the brush bristle and the central axis of the main body member, the side including the tip of the bristle with respect to the central line of the main body member Provided on the front side
  The electric toothbrush as described in any one of Claims 1-4.   A front side inclined portion that is inclined so as to approach the center line of the main body member as it goes from the main body member side toward the flocked portion side is provided in a portion of the outer wall portion on the front side of the main body.
  The electric toothbrush according to claim 5.   Of the flocked portion, the flocked surface, which is a surface on which the bristles are provided, is a side cross-section that is a cross-section parallel to the central axis of the bristles and the central axis of the main body member, with respect to the center line of the main body member Provided on the front side of the main body, which is the side on which the tip of the brush hair is included
  The electric toothbrush as described in any one of Claims 1-6.   A cap for covering the cleaning member;
  A ventilation hole is formed in a portion of the cap that faces the front end surface of the bristle
  The electric toothbrush as described in any one of Claims 1-7.

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