JP2566372Y2 - toothbrush - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothbrush capable of inclining a neck portion having a bristle portion at a tip thereof at a predetermined angle with respect to a handle portion.

[0002]

2. Description of the Related Art Conventionally, there has been known a configuration in which a neck portion of a toothbrush is inclined with respect to a handle portion, for example, in order to prevent the back teeth from being left unpolished.
Various methods have been proposed. For example, as shown in FIG. 9, Japanese Utility Model Application Laid-Open No. 63-13025 discloses a toothbrush having a structure in which a handle 11 and a neck 12 are supported by a shaft 13 and a screw 14 is tightened to the shaft 13 at a predetermined angle. Have been. In this conventional toothbrush, the engaging portion of the neck portion 12 and the shank portion 11 is formed with a notch that meshes with each other. 11 is maintained.

[0003]

However, in the above-described conventional toothbrush, when the neck 12 is held at a predetermined angle, the screw 14 is first loosened, and then the neck 12 is desirably positioned with respect to the handle 11. Tilt it to an angle and then screw 1
It is necessary to perform an operation of tightening 4 sufficiently.
Since the tightening requires turning the screw 14 while holding down the shaft 13, there is a problem that both hands are required, and the angle of the neck cannot be easily changed according to the polishing location. In particular, if the screw 14 is loosely tightened, the neck 12 is warped, so that there is a problem that the screw 14 must be securely tightened with both hands. Accordingly, an object of the present invention is to provide a toothbrush that can easily adjust the angle of the neck with one hand.

[0004]

According to the present invention, a base end of a neck portion having a bristle portion at a tip end is rotatably supported on a tip end portion of a handle portion, and a slider is provided at the base end portion. And a toothbrush slidably disposed with respect to the distal end, wherein the base end has a projection protruding outward from a side thereof, and the slider has The above object has been achieved by providing a toothbrush characterized in that an elongated groove for guiding a projection is formed, and the elongated groove has a longitudinal direction inclined with respect to the handle. .

[0005]

According to the toothbrush of the present invention, when it is desired to make the neck part have a predetermined inclination with respect to the handle, the slider is moved back and forth with the thumb or the like of the hand holding the handle. As a result, the protrusion at the base end of the neck moves along the elongated groove formed in the slider, and the neck is inclined at an angle corresponding to the moving distance of the elongated groove. Then, if the movement of the slider is stopped at the position of the desired inclination angle, the inclination angle at that position is maintained.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a toothbrush according to an embodiment of the present invention; FIG. 1 is an exploded perspective view of a toothbrush according to a first embodiment of the present invention, FIG. 2 is a side view showing a state in which the neck portion of the toothbrush shown in FIG. 1 is arranged linearly with respect to a handle, and FIG. FIG. 4 is a rear view of the toothbrush shown, FIG. 4 is a side view showing a state in which the neck of the toothbrush shown in FIG. 1 is inclined with respect to the handle, FIG. 5 is an exploded perspective view of the toothbrush according to the second embodiment of the present invention, and FIG. Is a side view of a state in which the neck portion of the toothbrush shown in FIG. 5 is arranged linearly with respect to the handle, FIG. 7 is a rear view of the toothbrush shown in FIG. 6, and FIG. It is a side view which shows the state inclined with respect to it.

First, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the toothbrush 1 of the first embodiment has a bristle portion 1B.
The base end 2A of the neck portion 2 having the front end is pivotally supported by the shaft 5 so as to be rotatable with respect to the front end 4A of the handle portion 4, and the slider 6 is moved relative to the base end 2A and the front end 4A. The base end 2A has a protrusion 7A protruding outward from a side thereof, and the slider 6 has an elongated groove 6A on the side thereof for guiding the protrusion 7A. The elongated groove 6 </ b> A has its longitudinal direction inclined with respect to the handle 4.

The neck 2 is formed separately from the handle 4.
The neck 2 is provided with a bristle portion 1B having a bristle (hair) 1A implanted at the tip thereof, and the base 2A of the neck 2 is connected to the tip 4A of the handle 4. Base 2A of neck 2
Is formed with a pair of legs 2C, 2C opened in a crotch shape so as to form a space at the center thereof.
The tip 4A of the handle 4 fits into the space between C. Then, the legs 2C, 2C and the tip 4
A is rotatably supported by a shaft 5 with respect to each other.

The slider 6 is formed in a substantially rectangular cylindrical shape, and slides around the base end 2A and the tip 4A. An elongated groove 6A inclined with respect to the groove is formed. An inclined opening 6B is formed on the neck 2 side of the slider 6 so that its upper and lower sides are open like a trumpet. The inclination of the inclined opening 6B is similar to or greater than the inclination of the above-described elongated groove 6A, and when the neck 2 is inclined with respect to the handle 4, the base end of the neck 2 is inclined. The upper surface or the lower surface of 2A is in contact with the inclined opening 6B so that the neck 2 is not moved. The material of the slider 6 is not particularly limited, but a metal, rubber, plastic material, or the like is used.
On the upper surface of the slider 6, a non-slip 6C having a large number of irregularities is formed so that the slider 6 can slide with a fingertip. The protrusion 7A is constituted by a head of the screw 7 screwed to the base end 2A or a head screwed to the other end of the screw 7, and the protrusion 7A is inserted into the elongated groove 6A of the slider. It is slidably disposed in the groove 6A.

Next, the operation of the first embodiment will be described. In the initial position where the neck portion 2 is located linearly with respect to the handle portion 4, as shown in FIGS. 2 and 3, the protrusions 7A, 7A are located substantially at the center of the elongated groove 6A in the longitudinal direction. When the neck 2 is inclined at a predetermined inclination angle with respect to the handle 4, the slider 6 is moved from the initial position as shown in FIG. 4 while holding the handle 4 while using the toothbrush. Move to handle 4 side. Then, the projection 7A moves while being guided by the elongated groove 6A, erects the neck portion 2, and gradually becomes the inclination angle α.
When the predetermined angle is obtained so as to increase the value, the slider 6 is stopped as shown in FIG. As described above, in the present embodiment, the thumb can be easily operated by pressing the non-slip 6C with the thumb holding the handle 4. And FIG.
As shown in the figure, at the maximum inclined position, the upper surface of the base end 2A is supported in contact with the inclined opening 6B. Therefore, the inclination of the neck 2 is limited. When the slider 6 is moved from the initial position shown in FIGS. 2 and 3 toward the neck 2, the neck 2 is inclined toward the back of the bristle 1A. In the toothbrush of the first embodiment, the angle of the neck can be easily and sequentially adjusted with one hand, and the slider can be slid with one hand so that the toothbrush can be adjusted while brushing the teeth.

Next, a toothbrush according to a second embodiment of the present invention will be described.
This will be described with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description of those parts will be omitted. In the toothbrush of the second embodiment, on the upper surface of the slider 6, a guide piece 6E for projecting the movement of the slider from substantially the center toward the inside is projected, and an engagement piece 6F is provided at the lower end thereof. Is formed. On the other hand, the handle 4 has a guide hole 4B for guiding the guide piece 6E.
The guide hole 4B is formed at the tip 4
6A, the engaging piece 6F is engaged with the handle 4 so that the guide piece 6E does not come off.

When the toothbrush of the second embodiment is used, as in the first embodiment, the non-slip 6C of the thumb or the like gripping the handle 4 starts from the initial position in the linear state shown in FIGS. And slide the slider 6 toward the handle 4. Thereby, the guide piece 6F arranged on the neck 2 is
The slider 6 is stopped as shown in FIG. 8 when the inclination angle α is gradually increased by being guided by the guide hole 4B and a predetermined angle is obtained. In the toothbrush of the second embodiment, the first
An effect similar to that of the embodiment can be obtained.

The present invention is not limited to the above embodiment, but can be variously modified without departing from the spirit of the present invention. For example, the neck 2 may be erected and inclined only in the direction of the bristle 1A.
In such a case, the inclined opening 6B of the slider 6 in the first embodiment may be formed only on the bristle 1A side. Further, it is also possible to form a large number of irregularities on the inside of the slider 6 or on the surface of the tip portion of the handle portion 4 so that the slide 6 does not slide too much when sliding on the tip portion of the handle portion 4.

[0014]

According to the present invention, the angle of the neck can be easily adjusted with one hand. In addition, by slightly sliding the slider, the angle of the neck can be adjusted to an arbitrary angle.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a toothbrush according to a first embodiment of the present invention.

FIG. 2 is a side view when the neck portion of the toothbrush shown in FIG. 1 is in a straight line with respect to a handle portion.

FIG. 3 is a rear view of the toothbrush shown in FIG. 2;

FIG. 4 is a side view showing a state where the neck portion of the toothbrush shown in FIG. 1 is inclined with respect to the handle.

FIG. 5 is an exploded perspective view of a toothbrush according to a second embodiment of the present invention.

FIG. 6 is a side view when the neck portion of the toothbrush shown in FIG. 5 is in a straight line with respect to the handle.

FIG. 7 is a rear view of the toothbrush shown in FIG. 6;

8 is a side view when the neck of the toothbrush shown in FIG. 6 is inclined with respect to the handle.

FIG. 9 is a plan view showing a conventional toothbrush.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toothbrush 1B Bristle part 2 Neck part 2A Base end part 4 Handle part 4A Tip part 6 Slider 6A Slender groove 7A Projection

Claims (1)

(57) [Scope of request for utility model registration] 1. A base end portion of a neck portion having a bristle portion at a tip end thereof is rotatably supported on a tip end portion of a handle portion, and a slider slides on the base end portion and the tip end portion. A toothbrush movably arranged, wherein the base end has a projection protruding outward from a side thereof, and the slider has an elongated groove formed on the side thereof for guiding the projection. A toothbrush, wherein the elongated groove has a longitudinal direction inclined with respect to the handle.