JPH08224259A - Inter-teeth toothbrush and brush holder - Google Patents

Abstract

PURPOSE: To easily insert a brush between teeth and to facilitate brushing by mounting a brush body provided with the brush to be inserted between the teeth on the tip part of a brush holder vibrated with a vibrator. CONSTITUTION: This inter-teeth toothbrush 1 is equipped with a main body, the brush holder 3 and the brush body 4, and the main body is provided with a driving means 22, the vibrator 23 and a casing to house them. The driving means 22 is provided with a DC motor 221 and a dry battery 222 that is a driving power source for the motor, and an oscillator 230 in the vibrator 23 is fixed at an eccentric position at the tip of the rotary shaft of the motor 221. The brush holder 3 to be vibrated is mounted on the tip of the casing freely loadably/unloadably, and the insertion part 412 of the brush body 4 equipped with the brush 42 in which hair is planted in radial shape is inserted to a holding part pierced at the tip of the brush holder 3 and consisting of a hole freely loadably/unloadably.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interdental toothbrush which is driven by vibration like an electric toothbrush.

[0002]

2. Description of the Related Art Heretofore, an interdental toothbrush has been used in which a brush is attached to the tip of a rod-shaped handle, as in a commonly used toothbrush. Such a conventional interdental toothbrush holds the handle part by hand, inserts the tip part of the handle into the oral cavity, and pushes the brush between the teeth,
Brushing was done by reciprocating the brush between the teeth.

However, the conventional interdental toothbrush has the following problems. When brushing, it is necessary to insert the brush between the teeth as described above, but it is difficult for the brush to enter between the teeth, and if you push it forcibly, the brush will deform and it will not be useful. there were. Further, especially when brushing between the back teeth, the brush cannot be slid sufficiently, so that a complete cleaning action cannot be achieved.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an interdental toothbrush which facilitates brush insertion between teeth and facilitates brushing.

[0005]

Such an object is achieved by the present invention described below.

(1) A main body having a driving means, a vibrating device vibrated by the driving means, and a mounting portion vibrating by the vibrating device, a brush holder attached to the mounting portion, and the brush holder. And a brush body having a brush attached to the tip of the tooth and inserted between the teeth, wherein the brush body is vibrated by the vibration of the attachment portion.

(2) The brush holder has a connecting portion at a base end portion which is detachably attached to the attachment portion, and is configured to be replaceable with another brush holder. An interdental toothbrush according to.

(3) The brush holder has a holding portion at a tip portion thereof, and the brush body has an insertion portion at a base end portion thereof which is detachably attached to a holding portion of the brush holder. Is an interdental toothbrush according to (1) or (2) above, which is configured to be replaceable with another brush body.

(4) The holding portion is a hole formed in the tip portion of the brush holder, and the insertion portion is configured to be removably inserted into the hole, and Is provided with a locking portion having a diameter larger than the inner diameter of the hole, and the locking portion projects to the opposite side of the hole when the insertion portion is inserted into the hole. Interdental toothbrush.

(5) A brush holder that is detachably attached to a mounting portion provided at the tip of the main body and vibrated by a vibrating device incorporated in the main body, the brush holding body having a brush inserted between teeth. A brush holder characterized by having it at its tip.

[0011]

When the driving means is driven, the vibrating device operates and the mounting portion of the main body vibrates. Due to the vibration of the attachment portion, the brush holder attached to the attachment portion vibrates, and the brush body attached to the tip of the brush holder vibrates. The vibration of the brush body gradually spreads the space between the teeth to allow the brush of the brush body to be easily inserted between the teeth, and also provides a sufficient cleaning action without sliding the brush body. Can be demonstrated.

By making the brush holder detachable from the main body and allowing other brush holders to be exchanged, the main body structure can be used for other toothpaste such as normal toothpaste other than the interdental toothbrush. it can.

By making the brush body replaceable, only the used brush body can be replaced, and only the main body can be used for a long period of time, which is economical. In particular, by forming the engaging portion on the brush body, the brush body is less likely to come off during use.

[0014]

EXAMPLE An interdental toothbrush 1 according to a preferred embodiment of the present invention will be described below.
Will be described in detail with reference to the accompanying drawings. FIG.
FIG. 3 is a partial cutaway perspective view of an interdental toothbrush 1 of the present embodiment. The interdental toothbrush 1 includes a main body 2 and a brush holder 3
And a brush body 4. The main body 2 is a drive means 2
2, a vibration device 23, and a casing 2 that houses them
1 and. The driving means 22 is a DC motor 221.
And a dry battery 222 which is a drive power source for the motor 221, and a vibrator 230 is fixed to the tip of the rotation shaft of the motor 221. The vibrator 230 has a cylindrical shape, and the rotation shaft of the motor 221 is connected to a position deviated from the center thereof. The vibrator 230 has a weight that is sufficiently heavier than the overall gravity of the main body 2, and is preferably made of a heavy metal such as lead or iron. The vibrating device 23 is composed of the rotating shaft of the motor 221 and the vibrator 230.

The casing 21 is formed in a substantially tubular shape as a whole and is composed of a front end side casing 211 and a base end side casing 212. Tip side casing 211
A vibration device 23 and a motor 221 are housed inside,
A battery 222 is housed in the proximal casing 212. Then, the vibrator 230 includes the distal end side casing 21.
It is arranged at the most distal end side within 1.

The tip end side casing 211 and the base end side casing 212 are butted against each other at their openings, and are rotatably fitted to each other. Tip side casing 21
A switch 27 is provided at a fitting portion between the 1 and the base end side casing 212, and by rotating the tip end side casing 211 and the base end side casing 212 relatively,
The switch 27 is switched. The motor 221, the dry battery 222, and the switch 27 form a closed circuit that is electrically connected in series.
The motor 221 is configured to be driven by setting 7 to be energized.

As shown in FIG. 2, a mounting portion 24 is provided at the tip of the tip side casing 211.
The mounting portion 24 is formed in a rod shape integrally with the tip casing 211. A convex strip 25 is formed on the side surface of the mounting portion 24 from the base end portion toward the distal end, and an engaging claw 26 is projectingly provided at the distal end of the convex strip 25 with a slight gap.

On the other hand, a connecting portion 32 is provided at the base end portion of the brush holder 3 attached to the attaching portion 24. The connection portion 32 has a hole 321 formed in the tip direction from the base end of the brush holder 3, a groove 322 formed in the hole 321, and an engagement hole 323. The inner diameter of the hole 321 is formed to match the outer diameter of the mounting portion 24,
The entire mounting portion 24 from the tip to the base end is configured to be housed in the hole 321. The groove 322 is the hole 32.
1 is formed at the open end of the groove 322, and the engagement hole 3 is formed on the tip side of the groove 322.
23 is formed.

When the mounting portion 24 is fitted into the connecting portion 32, the engaging claw 26 engages with the engaging hole 323, and the ridge 25 engages with the groove 322. The engagement between the engagement claw 26 and the engagement hole 323 prevents the brush holder 3 from coming off the main body 2, and the engagement between the ridge 25 and the groove 322 prevents the attachment portion 2 from being attached.
The rotation of the brush holder 3 with respect to 4 is prevented. That is, by fitting the attachment portion 24 into the connection portion 32,
The brush holder 3 is fixed to the main body 1. Brush holder 3
Is reliably fixed, the vibration of the main body 1 is reliably transmitted to the brush body 4.

The brush holder 3 is formed with a sufficient length so that the tip of the brush holder 3 reaches each part of the tooth when it is inserted into the oral cavity. The brush holder 3 is curved from the base end toward the tip, and the tip of the brush body 4 held at the tip is formed in a shape that can be easily inserted between the teeth.

As shown in FIG. 3, a hole 31 is provided at the tip of the brush holder 3 to provide a holding portion. The insertion portion 41 of the brush body 4 is inserted into the hole 31. The brush body 4 includes an insertion portion 41 and a brush 42. The insertion portion 41 includes a rod body 411 and a rod body 41.
1 includes a brim 412 formed at the base end, a sphere 413 formed at the tip of the rod 411, and a base 414 formed on the opposite side of the rod 411 with the brim 412 interposed therebetween. ing. The diameter of the rod body 411 is equal to the inner diameter of the hole 31, and the diameter of the spherical body 411 serving as the locking portion is formed larger than the inner diameter of the hole 31.

The base 414 supports a brush 42 having the same structure as the brush portion of the interdental toothbrush.
The brush 42 includes a core 421 made of wire and a core 421.
And bristles 422 that are radially provided around the core 421. The bristles 422 can be made of, for example, nylon, and the bristles made of nylon are sandwiched between wires that are folded in half, and the wires are twisted to form the brush 42 in which the bristles 422 are radially provided.

In the brush body 4, as shown in FIG. 3, the length of the bristles 422 can be adjusted to change the shape of the brush 42 into an arbitrary shape. For example, as shown in the drawing, the bristles 422 may be arranged such that the distal end side is short and the proximal end side is long.

When the rod body 411 of the brush body 4 is inserted into the hole 31 of the brush holder 3, the sphere body 4 is accompanied by some resistance.
13 passes through the hole 31 and projects to the opposite side of the hole 31.
In this state, the brush body 4 is held by the brush holder 3.

When the sphere 413 projects to the opposite side of the hole 31, the diameter of the sphere 413 is larger than the inner diameter of the hole 31.
The brush body 4 is less likely to come off from the hole 31, and troubles such as the brush body 4 coming off during use are suppressed.
As described above, as the brush body 4, a plurality of brushes 42 having different shapes can be provided, and the brush bodies 4 can be appropriately replaced according to the application.

Further, as shown in FIG. 1, the brush holder 3 is compatible with the brush holder 5 provided with an ordinary toothbrush for brushing the tooth surface. With such a configuration, the application as a toothbrush is widened and it is convenient.

When the switch 27 is energized while the brush holder 3 is attached to the main body 2 and the brush body 4 is fixed to the tip, the motor 221 as the driving means is rotated,
The vibration device 23 is driven. As a result, the main body 2 vibrates around the tip portion, the brush holder 3 integrated with the main body 2 via the mounting portion 24 vibrates, and the brush body 4 at the tip vibrates.

When the tip of the brush 42 is pressed between the teeth while vibrating, the brush 4 can be easily vibrated.
Since 2 is inserted between the teeth, the problem that the brush is deformed by pushing it between the teeth unlike the conventional case does not easily occur.

Further, if the brush 42 is left inserted between the teeth, the brushing is performed by the vibration, so that it is not necessary to slide the brush 42.
The tooth brushing operation can be completed easily and quickly.

[0030]

As described above, according to the interdental toothbrush of the present invention, the brush can be easily inserted between the teeth by lightly pressing the tip of the brush between the teeth. Brushing between teeth is possible without deforming the brush. Therefore, the life of the brush can be extended as compared with the conventional case.

Moreover, even if the brush inserted between the teeth is not moved so much, the brushing is performed by the vibration of the brush, so that the operation is simple and the deformation of the brush can be suppressed. In particular, the cleaning action can be sufficiently exerted even in a place where free brushing cannot be performed, such as between the back teeth. Furthermore, by making the brush holder detachable and replaceable with another toothbrush holder, the versatility of the main body is expanded and it can be used for various purposes. In addition, the running cost can be reduced by replacing the brush body itself with another shape or replacing a used brush body. In particular, by providing an engaging portion on the brush body, it is possible to prevent the brush body from coming off during use and make it easier to use.

Since the brush holder of the present invention can be used as a replacement brush for a commercially available electric toothbrush,
By replacing only the brush holder, the interdental toothbrush of the present invention can be constructed inexpensively and easily.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an interdental toothbrush.

FIG. 2 is an overall perspective view of a mounting portion.

FIG. 3 is an overall perspective view of a brush holder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Interdental toothbrush 2 Main body 21 Casing 211 Front end side casing 212 Base end side casing 22 Driving means 221 Motor 222 Dry battery 23 Vibrating device 230 Vibrator 24 Mounting part 25 Convex strip 26 Engaging claw 27 Switch 3 Brush retainer 31 Hole (holding Part 32 connection part 321 hole 322 groove 323 engagement hole 4 brush body 41 insertion part 411 rod body 412 brim 413 sphere (locking part) 414 base 42 brush 421 core 422 nylon flocking 5 brush holder

Claims (5)

[Claims] 1. A main body having a driving means, a vibrating device vibrating by the driving means, and a mounting portion vibrating by the vibrating device, a brush holder attached to the mounting portion, and a brush holder. An interdental toothbrush, comprising: a brush body having a brush attached to a tip portion thereof and inserted between teeth; and vibrating the brush body by vibration of the attachment portion. 2. The brush holder according to claim 1, wherein the brush holder has a connection portion at a base end portion that is detachably attached to the attachment portion and is replaceable with another brush holder. Interdental toothbrush. 3. The brush holder has a holding portion at a distal end portion thereof, the brush body has an insertion portion detachably attached to a holding portion of the brush holder at a base end portion thereof, and the brush body comprises: A brush body that can be replaced with another brush body.
Or the interdental toothbrush according to 2. 4. The holding portion is a hole formed in a tip portion of the brush holder, and the insertion portion is configured to be removably inserted into the hole, and the tip of the insertion portion is The tooth according to claim 3, wherein a locking portion having a diameter larger than the inner diameter of the hole is provided, and the locking portion projects to the opposite side of the hole in a state where the insertion portion is inserted into the hole. Inter toothbrush. 5. A brush holder detachably attached to a mounting portion provided at a tip of a main body and vibrating by a vibrating device incorporated in the main body, wherein a brush body having a brush inserted between teeth is a tip. A brush holder characterized by having.