JP2002253346A - Interdental brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To disclose a constitution which make an intrinsically small interdental brush larger to an appropriate size and enables it to be carried conveniently and hygienically. SOLUTION: This interdental brush consists of a brush body and a screw-out container which holds the brush body, allowing it to freely put our or pull in. In the brush body, a brush part having a filament is attached to a rein-made shaft. In the rotary extruder, there are a rotating part provided with a support cylinder that rotates within a cylindrical casing together with a knob on the end of the cylindrical casing, a stem part that is connected to the support cylinder in the rotating part with screws, and an extruding part that can move up and down within the casing through the conversion of the rotary movement in the rotating part into the up-and-down movements of the extruding part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for improving usability and portability of an interdental brush.

[0002]

2. Description of the Related Art Conventionally, in order to carry an interdental brush, it is not sanitary as it is, and since the filament is deformed carelessly, there is a means of covering with a cap or storing it in a box-shaped plastic case. Was used.

[0003]

However, when a cap is used, if the cap is lost, the filament of the interdental brush is no longer protected and cannot be carried. In addition, since the interdental brush is originally small, the size does not change much even if the cap is put on, and while carrying it in a handbag, a makeup pouch, etc., the interdental brush is lost with the cap. That is often the case.

On the other hand, if a box-shaped case is used, it can be carried in an appropriate size, and there is less chance of losing or losing the interdental brush in a bag or the like. Some pointed out that it was troublesome to finish the brush in the case.

In view of such a problem, an object of the present invention is to disclose a configuration in which an originally small interdental brush is appropriately sized and can be carried hygienically.

[0006]

In order to achieve the above-mentioned object, the present invention provides means for accommodating a brush body having a brush portion provided with a filament on a shaft made of resin and accommodating the brush body in a rotary extrusion container. Using. Here, the rotating extrusion container is
For example, it refers to a cylindrical container that is used for medicinal lipsticks, etc., when it is turned in the forward direction, it pushes out the rod-shaped contents out of the container, and when turned in the reverse direction, it has a function of accommodating the contents in the container. Say.

Specifically, as described in claim 2,
A brush body provided with a brush portion provided with a filament on a shaft made of resin, and a rotation provided with a support cylinder portion rotatably connected to a knob provided at one end of a cylindrical casing and rotating within the casing. The extruding portion is provided with a stem portion which is screwed to the portion and the supporting cylinder portion of the rotating portion, and converts a rotating motion of the rotating portion into an up-down motion in the axial direction so as to be able to move up and down in the casing. The object can be achieved by means of a rotating extrusion container provided with the brush body fixed upright to the pushing section so that the brush body can be freely inserted into and removed from the rotating extrusion container.

According to a third aspect of the present invention, the brush main body, the supporting cylinder of the rotating section, and the stem of the pushing section are set to substantially half the length of the cylindrical casing, and the supporting cylindrical section of the rotating section has a hollow cylindrical shape. A female screw that is screwed to the stem portion of the extruded portion is engraved inside, and a reverse screw that performs a reverse operation to the stem portion is engraved on the outer periphery, and the reverse screw is formed on the inner periphery of the casing. Means of providing a claw that meshes with the screw were selectively used. According to this means, not only the brush body and the stem portion, but also the support cylinder portion of the rotating portion moves up and down in the casing. According to this means, the entire length of the casing can be shortened. This is because, when the brush main body is finished, the stem portion of the extruding portion is housed in the support cylinder portion of the rotating portion. That is, the total length of the casing is set to a length obtained by adding the lengths of the brush main body and the support cylinder. Further, the brush main body can be taken in and out with a small rotating force by the gear ratio of the screw provided on the stem portion of the rotating portion and the reverse screw formed on the outer periphery of the support cylinder portion.

According to a fourth aspect of the present invention, a means is used in which the brush main body is exchangeably housed in a rotary extrusion container. That is, in the present invention, it is possible to adopt a configuration in which the shaft rod of the brush main body and the stem portion of the extruded portion are integrated or shared, that is, a configuration in which the shaft rod of the brush main body functions as the stem portion. The brush body can be exchanged by connecting with a detachable structure. According to this means, only the brush body, which is a consumable member, can be replaced, which is rational and economical.

[0010] In claim 5, a cap is applied to the rotary extrusion container. Thus, dust and dirt can be prevented from entering the casing, and the brush body can be more sanitarily protected.

[0011]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an entire interdental brush according to an embodiment of the present invention. In the figure, reference numeral 10 denotes a brush main body composed of a brush part 1 and a shaft rod 2 made of resin, and reference numeral 20 denotes a rotary extrusion container for accommodating the brush main body 10 in an extrudable manner. Reference numeral 30 denotes a cap attached to the tip of the rotary extrusion container 20.

In the brush body 10, the brush unit 1 sandwiches a bundle of filaments 1a between two folded wires 1b,
In this state, the filament bundle 1a is held by helically twisting the wire 1b. The shaft 2 is formed by embedding a lower part of the wire 1b of the brush part 1 through a thin tip neck 2a. Note that the brush body 10 having such a structure may have the same configuration as a conventionally known interdental brush alone, and a known configuration may be appropriately employed depending on the purpose and application.

Further, as the rotary extrusion container 20, for example, one having a structure adopted for a medicinal lipstick can be used. In other words, any structure can be employed as long as it employs a rotary push-out mechanism that allows the rod-shaped article housed inside to protrude out of the container by turning the knob 21 at the rear end. Then, according to this configuration, the brush body 10 is completely contained in the container 20 when carried, so that the filament 1a is protected. The size at this time is also the container 20,
That is, the overall length is about 60 mm and the thickness is about 10 mm. This size is bulky and easy to carry at all times even when put in a pocket or the like, and is not too small, so that it is easy to find even when put in a handbag or a makeup pouch.

FIG. 2 is an exploded perspective view showing a specific configuration example of the rotary extrusion container 20. In the figure, reference numeral 3 denotes a cylindrical casing having a length almost twice the entire length of the brush body 10;
Is an extruded portion composed of a roof 4a for supporting the brush body 10 in an upright manner so as to be exchangeable, and a stem 4b with a reverse thread. And a disk-shaped stopper 5b. Here, the pushing section 4 and the rotating section 5 are set to have a length approximately equal to half of the casing 3, in other words, a length substantially equal to the entire length of the brush body 10.

In FIG. 2, reference numeral 6 denotes a knob which is rotatably fitted below the casing 3, and a stopper 5b of the rotating portion 5 is tightly attached to the knob 5 so that both of them rotate. .

In order to assemble the rotary extrusion container 20 composed of the above components, first, the brush main body 10 is fixed upright to the top plate 4a of the extrusion section 4, and the extrusion section 4 is inserted from above the casing 3 in this state. I do. Here, two guide rails project in the longitudinal direction (long axis direction) on the inner periphery of the casing 3 (not shown), and the roof 4a of the extruding section 4 has two guide rails corresponding to these rails. A guide groove 4c is formed in the book. When inserting the push-out portion 4 into the casing 3, the guide groove 4c is engaged with the rail. Further, at least a part of the stem 4b of the inserted extruded portion 4 is projected from below the casing 3.

Next, the stopper 5b of the rotating part 5 is attached to the knob 6 to integrate them. And the rotating part 5
The stem 4b of the extruded portion 4 projecting from below the casing 3 is slightly screwed to the supporting cylinder portion 5a, and the rotating portion 5 is inserted into the casing 3 from below in this state. Here, a claw (not shown) is formed at the lower end of the inner periphery of the casing 3 to engage with the screw of the support cylinder 5a. For this reason, by rotating the knob 6, the rotary unit 5 is housed in the casing 3 so as to be able to move up and down while rotating together with the knob 6.

The rotary extruder 2 thus assembled
In the case of 0, when the knob 6 is turned in the forward direction, the rotating part 5 also rotates in the same direction, and the rotating part 5 slides so as to extend above the casing 3 while rotating. At this time, the extruded part 4
Does not rotate together with the rotating part 5 due to the engagement structure of the roof 4a and the rail provided on the inner periphery of the casing 3, but the reverse rotation acts due to the forward rotation of the rotating part 5 so that the stem 4b becomes the supporting cylindrical part 5a. And fall down to the back of the casing 3. Therefore, the brush main body 10 fixed to the top board 4a is completely accommodated in the casing 3.

If the knob 6 is turned in the opposite direction, the knob 6 and the rotating portion 5 slide under the casing 3 while rotating, while the pushing portion 4 moves upwardly of the casing 3 by the reverse screw action of the stem 4b. As a result, the brush body 10 can be protruded from the casing 3.

As described above, in the present embodiment, two members, ie, the extruding portion 4 and the rotating portion 5, are used as the rotating and extruding mechanism for the container 20, and the screws for vertically sliding the two members are cut in the opposite directions to thereby extrude the container. The stem 4b of the part 4 is connected to the support cylinder part 5a of the rotating part 5.
When the knob 6 is fully turned in the forward direction, the entire length of the rotary pushing mechanism can be made approximately half of that of the casing 3, and as a result, the entire length of the casing 3, that is, the space between the teeth when the portable device is carried. The total length of the brush was shortened.

[0021]

As described above, according to the present invention, the brush main body is housed in the rotary extrusion container, so that the brush main body is securely protected by the casing when being carried,
It is easy to use because the total length is long when used. Further, since the size of the lipstick when it is carried is almost the same as that of a lipstick, it is excellent in practical effects that it does not become too small, is easily taken out of a bag or the like when used, and is hardly lost.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an interdental brush of the present invention according to an embodiment.

FIG. 2 is an exploded perspective view showing one configuration example of a rotary extrusion container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Brush body 20 Rotating extrusion container 30 Cap

Claims (5)

[Claims] 1. An interdental brush wherein a brush body having a brush portion provided with a filament provided on a shaft made of resin is housed in a rotatable extrusion container so as to be freely taken in and out. 2. A support cylinder, which is rotatably connected to a brush main body having a brush portion provided with a filament provided on a shaft made of resin and a knob provided at one end of a cylindrical casing, and is rotatable within the casing. A rotating part having a part and a supporting cylinder part of the rotating part is provided with a stem part which is screwed,
And a rotating extrusion container having an extruding portion that converts the rotating motion of the rotating portion into an up-and-down motion in the axial direction so as to be able to move up and down in the casing. The interdental brush, wherein the brush body is housed in a rotatable extrusion container so as to be freely taken in and out. 3. A brush body, a supporting cylinder portion of a rotating portion, and a stem portion of an extruding portion are set to substantially the entire length of a cylindrical casing, and a supporting cylindrical portion of a rotating portion is formed in a hollow cylindrical shape. A female screw that is screwed to the stem portion is engraved, and a reverse screw that performs an operation reverse to that of the stem portion is engraved on the outer periphery, and the internal thread of the casing meshes with the reverse screw. 3. The interdental brush according to claim 2, comprising a claw. 4. The interdental brush according to claim 1, wherein the brush body is exchangeably housed in a rotary extrusion container. 5. The rotary extrusion container has a cap.
5. The interdental brush according to any one of items 1 to 4.