JP2010213831A - Toothbrush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toothbrush for efficiently and actively sterilizing unwanted bacteria, periodontal bacteria, mutans streptococci, or the like in an oral cavity. <P>SOLUTION: An UVLED 19 for emitting ultraviolet rays having a sterilization effect is placed and fixed in an opening recessed part 18 provided for a tip part 13a of a hold part 13. A light guide path 23 for guiding the ultraviolet rays emitted by the UVLED 19 outside is put through and formed on a brush base 14 of a brush block 16. Thus, the UVLED 19 is lighted to radiate the ultraviolet rays in the oral cavity while teeth are brushed, and the oral cavity is sterilized while teeth are brushed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a toothbrush.

  In recent years, various brush shapes have been proposed for toothbrushes so as not to damage gums and teeth, and to efficiently remove plaque. On the other hand, since the toothbrush is put in the mouth, it is preferable to always use a sterilized toothbrush in consideration of oral hygiene. Therefore, a sterilizing apparatus has been proposed in which the used toothbrushes after tooth brushing are stored and sterilized until the next tooth brushing (for example, Patent Document 1).

JP 2000-325442 A

  However, the toothbrush sterilized by the sterilizer is hygienic because the toothbrush itself is sterilized, but it cannot actively sterilize germs, periodontitis, caries, etc. in the oral cavity. Therefore, it is desired to effectively sterilize these germs in the oral cavity, periodontal diseases, caries, and the like.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a toothbrush that can efficiently and positively sterilize bacteria in the oral cavity, periodontal bacteria, caries, and the like. It is in.

  The invention according to claim 1 includes a gripping portion, a holding portion that extends in one direction from the gripping portion, and a brush block in which brush bristles provided at the tip of the holding portion are implanted. A toothbrush that is provided with a germicidal lamp in any one of the gripping part, the holding part, and the brush block, and that guides germicidal light emitted from the germicidal lamp to the outside from the brush block. Means were provided.

  According to the first aspect of the present invention, light having a bactericidal effect can be emitted to the outside from the brush block in which the brush hairs are implanted. Therefore, while brushing the teeth, germs in the oral cavity, periodontal disease bacteria, and caries Bacteria and the like can be sterilized, and the oral cavity can be kept clean.

  The invention according to claim 2 is the toothbrush according to claim 1, wherein the germicidal lamp is provided in the holding portion, and the brush block includes a brush base in which the brush bristles and the brush bristles are implanted. The brush base is provided so as to be detachable from the tip of the holding portion.

  According to the second aspect of the present invention, since the brush block made of the brush base in which the brush bristles are planted is made detachable from the holding portion, the toothbrush can be used for a long time only by replacing the inexpensive brush block. Can be made into a toothbrush with excellent cost performance.

  According to a third aspect of the present invention, in the toothbrush according to the second aspect, the brush bristles of the brush base are implanted so that the light guide means communicates with the germicidal lamp provided in the holding portion. It is the opening part which made the opened surface open.

According to the third aspect of the present invention, since the light having a sterilizing effect emitted from the sterilizing lamp is emitted in the direction of the tip of the brush hair, the portion polished with the brush can be sterilized efficiently.
According to a fourth aspect of the present invention, in the toothbrush according to the second aspect of the present invention, the light guide means forms the brush base with a transparent synthetic resin.

  According to the invention described in claim 4, since the light having a bactericidal effect emitted from the germicidal lamp is emitted from all the outer surfaces of the brush base, not only the portion polished by the brush but also other oral cavity It can be sterilized together.

  According to a fifth aspect of the present invention, in the toothbrush according to the first aspect, the germicidal lamp is provided in the grip portion, and the holding portion in which the brush block is provided at a distal end portion is provided with respect to the grip portion. It was detachable.

  According to the invention described in claim 5, since the holding portion provided with the brush block is made detachable with respect to the gripping portion, the toothbrush can be used for a long time only by replacing the inexpensive holding portion which is advantageous in terms of cost. Can be made into a toothbrush with excellent cost performance. In addition, since the germicidal lamp is provided in the grip portion, the space for installing the germicidal lamp can be easily secured and the degree of design freedom can be increased.

  The invention according to claim 6 is the toothbrush according to claim 5, wherein the light guide means is formed in the holding portion so as to communicate with the germicidal lamp provided in the grip portion; The surface of the brush block where the brush bristles are planted is opened, and the bactericidal light emitted from the bactericidal lamp guided through the light guide passage is implanted into the brush bristles. And a reflecting mirror that reflects on the provided surface side.

  According to invention of Claim 6, the light with the bactericidal effect radiate | emitted from the germicidal lamp provided in the main-body part is from the surface which planted the bristle through the light guide path, the reflective mirror, and the opening part. Since it is emitted, it is possible to efficiently sterilize the portion where the teeth are being brushed.

  The invention according to claim 7 is the toothbrush according to claim 5, wherein the light guide means forms a light guide passage in the holding portion so as to communicate with the germicidal lamp provided in the grip portion. The brush block formed at the tip of the holding part is formed of a transparent synthetic resin, and the sterilizing light emitted from the sterilizing lamp guided to the light guide passage is guided to the brush block. I made it.

  According to the seventh aspect of the present invention, the light having a sterilizing effect emitted from the sterilizing lamp provided in the grip portion is emitted to the brush block formed of a transparent synthetic resin through the light guide passage. And since the light having a bactericidal effect emitted from the bactericidal lamp incident on the brush block is emitted from all outer surfaces of the cylinder block, it is sterilized not only in the portion polished with the brush but also in the other oral cavity. it can.

The invention according to claim 8 is the toothbrush according to any one of claims 1 to 7, wherein the brush bristles are made of a transparent synthetic resin that guides bactericidal light.
According to the invention described in claim 8, since the light having a bactericidal effect emitted from the bactericidal lamp is also emitted from the tip of the brush hair, the bactericidal effect is enhanced and it is possible to sterilize every corner of the oral cavity. it can.

  The invention according to claim 9 is the toothbrush according to any one of claims 1 to 8, wherein the driving unit for vibrating the brush block, the operation switch for driving the driving unit, Control means for driving the driving unit and turning on the germicidal lamp based on an on operation of an operation switch, and for stopping the driving unit and turning off the germicidal lamp based on an off operation of the operation switch. .

According to the ninth aspect of the present invention, the vibration of the brush block and the lighting of the sterilization lamp, that is, brushing and sterilization can be performed simultaneously with one switch, and the usability is very good.
According to a tenth aspect of the present invention, in the toothbrush according to the ninth aspect, the control means includes a timer, stops driving the driving unit based on an OFF operation of the operation switch, and operates the timer to measure time. And the germicidal lamp is turned off when the timer times a predetermined time.

According to the invention described in claim 10, even after the driving of the drive unit is stopped, it can be sterilized with a germicidal lamp, and sterilization leakage in the oral cavity can be reduced.
The invention according to claim 11 is the toothbrush according to any one of claims 1 to 10, wherein the sterilizer is based on an adjustment switch that adjusts a light emission amount of the germicidal lamp and an operation amount of the adjustment switch. And a light emission amount control means for controlling the amount of light when the lamp is turned on.

  According to the eleventh aspect of the present invention, the sterilization lamp can be turned on by changing the light amount only by operating the adjustment switch, so that the optimal sterilization can be performed according to the state of the oral cavity at that time.

  According to the present invention, it is possible to efficiently and positively sterilize germs in the oral cavity, periodontal diseases, caries, and the like.

The front view of the electric toothbrush for demonstrating the electric toothbrush of 1st Embodiment. The partially broken side view of an electric toothbrush similarly. The electric block circuit diagram which similarly shows the electric constitution of an electric toothbrush. Similarly, an output waveform diagram for explaining each block circuit. The partially broken side view of the electric toothbrush for demonstrating the electric toothbrush of 2nd Embodiment.

(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, the handle 11 of the electric toothbrush 10 has a large-diameter gripping portion 12 at the base end portion, and a holding portion 13 that extends from the distal end of the gripping portion 12. have.

  The gripping part 12 is formed in a covered rectangular tube shape, and the proximal end opening is closed by a cap 12a. A motor M (see FIG. 3) and a battery (not shown) are built in the square cylindrical gripping portion 12. The motor M vibrates the brush block 16 composed of the brush base 14 and the brush bristles 15 detachably attached to the distal end portion 13a of the holding portion 13 by rotating.

  As shown in FIG. 2, the front end portion 13a of the holding portion 13 to which the brush block 16 is detachably attached has a front surface as a connecting surface 17, and an opening recess that constitutes a light guide means at the center of the connecting surface 17 18 is recessed. An ultraviolet light emitting diode (hereinafter referred to as UVLED) 19 as a germicidal lamp is disposed and fixed on the bottom surface of the opening recess 18. The UVLED 19 is supplied with a driving current via a lead wire 20 wired in the holding unit 13 and emits ultraviolet light having a sterilizing effect as sterilizing light. And the ultraviolet-ray radiate | emitted from UVLED19 is radiate | emitted outside through the opening recessed part 18. FIG.

  The brush block 16 includes a brush base 14 that is detachably connected to the connecting surface 17 of the distal end portion 13a, and brush hairs 15 that are planted on the brush base 14. Moreover, the brush base 14 in which the brush bristles 15 are planted is detachably mounted on the connecting surface 17 of the distal end portion 13a.

  More specifically, a connection protrusion 21 is formed on the connection surface 17 of the distal end portion 13 a, and a connection hole 22 is formed on the back surface of the brush base 14. Then, by overlapping the connecting surface 17 of the tip portion 13 a and the back surface of the brush base 14, the connecting protrusion 21 is fitted into the connecting hole 22, and the brush base 14 is in contact with the tip portion 13 a of the holding portion 13. Fixed. On the contrary, when the brush base 14 is pulled away from the distal end portion 13a, the connected connecting projection 21 is detached from the connecting hole 22 and can be replaced with a new brush base 14 (brush block 16).

  The brush base 14 is formed with a light guide path 23 that constitutes a light guide means communicating with the opening recess 18. The brush bristles 15 are implanted on the brush base 14 so as to surround the light guide path 23.

  Accordingly, ultraviolet light emitted from the UVLED 19 provided in the opening recess 18 is emitted to the connection surface 17 of the distal end portion 13 a that connects the brush base 14 to the outside through the light guide 23 formed in the brush base 14. The

That is, it is possible to irradiate the oral cavity with ultraviolet rays emitted from the UVLED 19 when brushing teeth.
The grip portion 12 of the handle 11 is provided with a slide type operation switch SW1 and a slide type light quantity setting switch SW2. The operation switch SW1 is a switch that is slid to two positions, and outputs an operation signal SG1 based on the slide operation position, as shown in FIGS.

  When the operation switch SW1 is slid to the front end side, the operation switch SW1 can output the operation signal SG1 that rises to the H level, drive the motor M, and cause the UVLED 19 to emit light. On the contrary, when the operation switch SW1 is slid to the proximal end side, the operation switch SW1 outputs an operation signal SG1 that falls to the L level, stops driving the motor M, and can turn off the UVLED 19 after a certain time. .

Similarly, the light amount setting switch SW2 is a switch that is slid to two positions, and outputs a setting signal SG2 based on the slide operation position, as shown in FIG.
When the light amount setting switch SW2 is slid to the front end side, the light amount setting switch SW2 outputs an H level setting signal SG2, and the light emission amount of the UVLED 19 can be increased to cause the UVLED 19 to emit light. On the other hand, when the light amount setting switch SW2 is slid to the proximal end side, the light amount setting switch SW2 outputs an L level setting signal SG2 so that the light emission amount of the UVLED 19 is weakened and the UVLED 19 can emit light. It has become.

Next, an electrical configuration built in the electric toothbrush 10 configured as described above will be described.
In FIG. 3, the electric toothbrush 10 includes a control circuit 31 as a control unit and a light emission amount control unit, a motor drive circuit 32, and a light emitting element drive circuit 33. The control circuit 31 is connected to the operation switch SW1 and inputs the operation signal SG1.

  When the operation signal SG1 rises to H level, the control circuit 31 outputs an H level drive control signal CT1 for driving the motor M constituting the drive unit via the motor drive circuit 32 constituting the drive unit. Then, an H level drive control signal CT2 for causing the UVLED 19 to emit light is output via the light emitting element drive circuit 33.

  Further, when the operation signal SG1 falls to the L level, the control circuit 31 outputs an L level drive control signal CT1 for stopping the driving of the motor M via the motor drive circuit 32, and to the control circuit 31. The built-in timer 34 outputs a drive signal for starting the time measuring operation.

  The timer 34 measures a predetermined time, outputs an H level state signal ST during the time counting operation, and outputs an L level state signal ST to the control circuit 31 when the predetermined time is counted and time is up. . In response to the state signal ST falling from the H level to the L level, the control circuit 31 outputs the L level drive control signal CT2 and turns off the UVLED 19 via the light emitting element drive circuit 33. Yes.

Therefore, even if the motor M is stopped by turning off the operation switch SW1, the UVLED 19 does not turn off and continues to light for a certain period of time, and then turns off.
The control circuit 31 is connected to the light amount setting switch SW2 and inputs the setting signal SG2. When the operation switch SW1 is turned on while the light amount setting switch SW2 is slid to the front end side, the UVLED 19 emits light with a strong light emission amount. On the contrary, when the operation switch SW1 is turned on while the light amount setting switch SW2 is slid to the proximal end side, the UVLED 19 emits light with a weak light emission amount.

  That is, when the UVLED 19 is turned on based on the operation signal SG1, the control circuit 31 sets the current value of the drive current supplied to the UVLED 19 via the light emitting element drive circuit 33 based on the setting signal SG2.

  The control circuit 31 outputs an H level light quantity control signal CT3 to the light emitting element drive circuit 33 when the setting signal SG2 is at the H level. The light emitting element driving circuit 33 is configured to supply a driving current having a predetermined first reference current value to the UVLED 19 in response to the H level light quantity control signal CT3.

  Further, the control circuit 31 outputs an L level light quantity control signal CT3 to the light emitting element drive circuit 33 when the setting signal SG2 is at the L level. The light emitting element drive circuit 33 is configured to supply a drive current having a predetermined second reference current value to the UVLED 19 in response to the L level light quantity control signal CT3.

  Here, the first reference current value is larger than the second reference current value, and the emission amount of the UVLED 19 supplied with the current of the first reference current value is supplied with the current of the second reference current value. It is larger than the light emission amount of the UVLED 19 at the time.

  Therefore, the light amount can be set by sliding the light amount setting switch SW2, and the optimal sterilization treatment can be performed by changing the light amount according to the tooth brushing location, so that the oral cavity can be efficiently cleaned.

Next, the effect of 1st Embodiment comprised as mentioned above is described below.
(1) According to the above embodiment, the UVLED 19 that emits ultraviolet light having a bactericidal effect is disposed and fixed in the opening recess 18 that is recessed in the distal end portion 13 a of the holding portion 13. And the light guide 23 which guides the ultraviolet-ray which the UVLED 19 radiate | emitted outside was formed in the brush base 14 attached to the front-end | tip part 13a. Therefore, the UVLED 19 can be turned on while brushing teeth, and ultraviolet rays can be irradiated into the oral cavity, so that the oral cavity can be sterilized while brushing teeth. That is, while brushing teeth, it is possible to sterilize germs, periodontal disease bacteria, caries fungi and the like in the oral cavity and clean the oral cavity.
(2) In the above embodiment, the light amount setting switch SW2 is provided, and the light amount can be set by sliding the light amount setting switch SW2. Therefore, by appropriately changing the amount of light according to the location where the teeth are to be brushed, optimal sterilization can be performed, and the oral cavity can be efficiently cleaned.
(3) In the above embodiment, the UVLED 19 is turned on in conjunction with the operation switch SW1 that drives the motor M to vibrate the brush base 14. Therefore, it is not necessary to provide a separate switch for lighting, and the oral cavity can be sterilized while brushing teeth by a simple operation such as operating the operation switch SW1. In addition, when the motor M is stopped, the UVLED 19 is turned off after a certain period of time, so that the UVLED 19 will not continue to turn on unnecessarily because the UVLED 19 is forgotten to be turned off.
(4) In the above embodiment, the UVLED 19 is lit for a certain time after the operation switch SW1 is turned off. Therefore, after the tooth brushing is completed, the electric toothbrush 10 can be sterilized with the ultraviolet rays emitted from the UVLED 19 and can be kept clean.
(5) In the above embodiment, the brush base 14 (brush block 16) is detachably attached to the distal end portion 13a from the holding portion 13. Therefore, when the brush bristles 15 are worn, the brush base 14 may be replaced, and the UVLED 19 that does not need to be replaced is not replaced. Replacement parts can be manufactured at low cost.
(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG.

  The electric toothbrush 40 shown in FIG. 5 is such that the gripping part 42 and the holding part 43 constituting the handle 41 of the electric toothbrush 40 are detachable, and the tip part 43a of the holding part 43 is a brush base of a brush block. The point formed integrally with the portion 43b is different from the electric toothbrush 10 of the first embodiment. Therefore, for the sake of convenience of explanation, different points will be described in detail, and the same configuration as that of the first embodiment will be saved.

  A cylindrical attachment hook 44 extends from the distal end surface of the grip portion 42. The holding portion 43 has a fitting groove 45 fitted on the claw 44 a of the cylindrical mounting hook 44 on the outer peripheral surface of the base end portion.

  Then, by inserting the proximal end portion of the holding portion 43 into the cylindrical attachment hook 44 and fitting the claws 44 a of the attachment hook 44 into the fitting groove 45, the holding portion 43 is attached to the distal end of the holding portion 42. It is connected to the surface, is integrated with the grip portion 42, and becomes a handle 41 of the electric toothbrush 40.

  An accommodation recess 46 is formed at the center position of the distal end surface of the grip portion 42. An ultraviolet light emitting diode (hereinafter referred to as UVLED) 19 is disposed and fixed on the bottom surface of the housing recess 46. The UVLED 19 is supplied with a drive current via the lead wire 20 wired in the grip portion 42 and emits ultraviolet rays having a bactericidal effect. And the ultraviolet-ray radiate | emitted from UVLED19 is radiate | emitted to the front end surface side through the accommodation recessed part 46. FIG.

  A brush base 43b for planting the brush bristles 15 is formed on the front end 43a of the holding portion 43 so as to protrude from the front side. An opening concave portion 47 that constitutes a light guide means is provided in the center of the front surface of the brush base portion 43b.

  In addition, a light guide path 48 is formed through the base end surface of the holding portion 43 so as to constitute a light guide means that communicates with the housing recess 46 formed on the distal end surface of the grip portion 42 when connected to the grip portion 42. The other end of the light guide path 48 is formed so as to communicate with an opening recess 47 formed in the brush base 43b of the brush block. Accordingly, the ultraviolet rays from the UVLED 19 emitted to the front end surface side through the housing recess 46 are guided to the opening recess 47 through the light guide path 48.

  The opening recess 47 is provided with a reflection mirror 49 that constitutes a light guide means, and the ultraviolet light emitted to the opening recess 47 through the light guide path 48 is reflected by the reflection mirror 49 and then passed through the opening recess 47. It emits to the side.

In the present embodiment, the housing recess 46 formed in the grip portion 42 and the light guide path 48 formed in the holding portion 43 are filled with transparent synthetic resins 50a and 50b.
Next, the effect of 2nd Embodiment comprised as mentioned above is described below.
(1) According to the above embodiment, the grip portion 42 and the holding portion 43 of the handle 41 are made detachable. And UVLED19 which light-emits the ultraviolet-ray which has a bactericidal effect was arrange | positioned and fixed to the accommodation recessed part 46 recessedly provided in the holding part 42. FIG. On the other hand, an opening recess 47 is provided in the brush base portion 43 b of the brush block integrally formed with the distal end portion 43 a of the holding portion 43, and the reflection mirror 49 is disposed in the opening recess 47. Further, a light guide path 48 is formed through the holding portion 43 so as to communicate the opening concave portion 47 and the accommodating concave portion 46 of the grip portion. The ultraviolet light emitted from the UV LED 19 is guided to the opening recess 47 through the light guide path 48, and the ultraviolet light guided to the opening recess 47 is emitted to the front side through the opening recess 47 reflected by the reflection mirror 49.

  Accordingly, the UVLED 19 can be turned on while brushing the teeth, and ultraviolet rays can be irradiated into the oral cavity, so that the oral cavity can be sterilized while brushing the teeth. That is, while brushing teeth, it is possible to sterilize germs, periodontal disease bacteria, caries fungi and the like in the oral cavity and clean the oral cavity.

In addition, you may change the said embodiment as follows.
In the above embodiment, the UVLED 19 is blinked in conjunction with the operation switch SW1. This may be implemented by providing a switch for turning on the UVLED 19 separately from the operation switch SW1 as a lighting switch for turning on the UVLED 19. The teeth can be brushed without sterilization treatment, that is, without turning on the UVLED 19, and can be sterilized by turning on the middle.

  -In the said embodiment, although embodied in the electric toothbrush 10, you may materialize in the toothbrush which is not an electric brush. In this case, it is necessary to provide a switch for blinking the UVLED 19.

In the above embodiment, the brush base 14 is embodied as the electric toothbrush 10 that can be replaced. However, the brush base 14 may be embodied as a toothbrush that cannot be replaced.
In the above embodiment, the opening recess 18 formed in the distal end portion 13a of the holding portion 13 and the light guide path 23 formed in the brush base 14 are spaces through which ultraviolet rays pass, but the opening recess 18 and the light guide path 23 are transparent. It may be carried out by filling the synthetic resin. Thereby, the UVLED 19 disposed in the opening recess 18 is protected. Of course, only one of the opening recess 18 and the light guide path 23 may be filled with a transparent synthetic resin.

  In the above embodiment, the UVLED 19 is turned off after a predetermined time after the operation switch SW1 is turned off. This may be turned off simultaneously with the stop of the motor M by the operation of the operation switch SW1 being turned off.

  -You may shape | mold the front-end | tip part 13a of the holding | maintenance part 13 of the said embodiment, and the brush base 14 of the brush block 16 with transparent resin. Thereby, the ultraviolet rays emitted from the UVLED 19 can be emitted from the outer surface of the tip portion 13a of the holding portion 13 and the outer surface of the brush base 14, and a wide range in the oral cavity can be sterilized at a time.

  -You may shape | mold the bristle 15 of the said embodiment with transparent resin. Since ultraviolet rays are emitted through the brush bristles 15, closer portions can be sterilized.

  DESCRIPTION OF SYMBOLS 10, 40 ... Electric toothbrush, 11, 41 ... Handle, 12, 42 ... Grasping part, 13, 43 ... Holding part, 13a, 43a ... Tip part, 14 ... Brush base, 15 ... Brush hair, 17 ... Connection surface, DESCRIPTION OF SYMBOLS 16 ... Brush block, 18, 47 ... Opening recessed part, 19 ... Ultraviolet light emitting diode (UVLED), 20 ... Lead wire, 21 ... Connection protrusion, 22 ... Connection hole, 23, 48 ... Light guide path, 31 ... Control circuit, 32 ... Motor drive circuit 33 ... Light emitting element drive circuit 34 ... Timer 43b ... Brush base part 44 ... Mounting hook 44a ... Nail 45 ... Recessing recess 49 ... Reflective mirror 50a, 50b ... Synthetic resin CT1, CT2 ... Drive control signal, CT3 ... Light quantity control signal, M ... Motor, SW1, ... Operation switch, SW2 ... Light quantity setting switch.

Claims (11)

A gripping part;
A holding portion formed extending in one direction from the gripping portion;
A toothbrush having a brush block in which brush bristles provided at the tip of the holding part are implanted,
A sterilization lamp is provided in any one of the grip part, the holding part, or the brush block, and a light guide means for emitting sterilization light emitted from the sterilization lamp to the outside from the brush block is provided. A featured toothbrush. The toothbrush according to claim 1,
The germicidal lamp is provided in the holding unit,
The brush block includes the brush bristles and a brush base on which the brush bristles are implanted, and the brush base is provided so as to be detachable with respect to a distal end portion of the holding portion. The toothbrush according to claim 2,
The said light guide means is an opening part which opened the surface which planted the said bristle of the said brush base so that it may communicate with the said germicidal lamp provided in the said holding | maintenance part, The toothbrush characterized by the above-mentioned. The toothbrush according to claim 2,
The said light guide means formed the said brush base with the transparent synthetic resin, The toothbrush characterized by the above-mentioned. The toothbrush according to claim 1,
The germicidal lamp is provided in the grip portion,
The toothbrush characterized in that the holding part provided with the brush block at the tip part is provided detachably with respect to the grip part. The toothbrush according to claim 5,
The light guide means is formed in the holding portion so as to communicate with the germicidal lamp provided in the grip portion; and
An opening recess in which the surface of the brush block in which the brush hairs are implanted is opened; and
A toothbrush comprising: a reflection mirror that reflects sterilization light emitted from the sterilization lamp guided to the light guide passage from the opening recess to a surface side where the brush bristles are implanted. The toothbrush according to claim 5,
The light guiding means includes
A light guide passage is formed in the holding portion so as to communicate with the germicidal lamp provided in the gripping portion, and a brush block formed at a tip portion of the holding portion is formed with a transparent synthetic resin,
A toothbrush characterized in that sterilizing light emitted from the sterilizing lamp guided to the light guide passage is guided to the brush block. In the toothbrush of any one of Claims 1-7,
The toothbrush characterized in that the brush bristles are made of a transparent synthetic resin that guides germicidal light. In the toothbrush as described in any one of Claims 1-8,
A drive unit for vibrating the brush block;
An operation switch for driving the drive unit;
Control means for driving the drive unit and turning on the germicidal lamp based on an on operation of the operation switch, and for stopping driving of the drive unit and extinguishing the germicidal lamp based on an off operation of the operation switch. A toothbrush characterized by that. The toothbrush according to claim 9,
The control means includes a timer, stops the driving of the drive unit based on an operation of turning off the operation switch, and operates the timer to measure the germicidal lamp when the timer counts a predetermined time. A toothbrush characterized by being extinguished. In the toothbrush as described in any one of Claims 1-10,
An adjustment switch for adjusting the amount of light emitted from the germicidal lamp;
A toothbrush comprising: a light emission amount control means for controlling a light amount when the germicidal lamp is turned on based on an operation amount of the adjustment switch.

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