JP3088428U - toothbrush - Google Patents

Abstract

(57) [Problem] To provide a reusable toothbrush which does not require the operation of pushing out a toothpaste from a tube and attaching the toothpaste to the toothbrush every time the toothbrush is brushed. A hollow part is provided in a handle 2 to form a toothpaste storage part 5, which can be filled with toothpaste. From the toothpaste storage part 5 to the brush installation surface 20 at the tip, a conduit 6 for sending out the toothpaste is provided. A toothpaste pumping means, for example, an air pump 7 is provided at an arbitrary portion of the handle 2 and is operated when brushing the toothpaste.
Be able to push to zero.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a toothbrush in which a toothpaste is filled in a handle portion and is extruded by a necessary amount at the time of brushing so that the toothbrush can be used.

[0002]

[Prior art]

 When brushing teeth, the amount of toothpaste necessary for a single brushing is usually pushed out of the tube and adhered to the brush portion of the toothbrush. This operation, which is carried out while holding the toothbrush in one hand and holding the tube in the other hand, can cause the toothpaste that has been extruded to fall off without being able to adhere well to the brush, and it is difficult to control the amount of extrusion and excessively. Often used. This is especially true for people who have poor vision or who have impaired arms or fingers.

[0003] There is a toothbrush in which toothpaste is adhered to a brush portion, but this is a disposable item provided in a service facility such as a hotel and is not suitable for daily use at home.

[0004]

[Problems to be solved by the invention]

 Therefore, the present invention is intended to provide a toothbrush that can be used repeatedly without having to push the toothpaste out of the tube and attach it to the toothbrush every time the toothbrush is brushed.

[0005] Another object of the present invention is to provide a toothbrush in which the operation of attaching toothpaste to the brush can be performed with one hand.

[0006]

[Means for Solving the Problems]

 The toothbrush according to the present invention has a toothpaste storage portion (hereinafter referred to as a storage portion) in which a hollow portion is provided inside a handle so that toothpaste can be filled therein. It is characterized by having a conduit that opens, and toothpaste pressure feeding means (hereinafter referred to as pressure feeding means) for pushing out the toothpaste stored in the storage section into the conduit.

When using this toothbrush, the storage section is filled with toothpaste in advance. The toothpaste to be filled may be in a general tube. Alternatively, a cartridge containing toothpaste prepared according to the shape of the storage section is loaded in the storage section. When brushing the tooth, the toothpaste in the storage section is pushed out by operating the pressure-feeding means to the conduit, and further flows out from the conduit opening in the brush installation surface and adheres to the brush.

[0008]

[Embodiment of the invention]

 Hereinafter, the present invention will be described with reference to the drawings showing specific examples.

In FIG. 1 showing one embodiment of the present invention, a brush 1 is similar to a brush of a normal toothbrush, but a handle 2 is a normal toothbrush except for a neck portion 4 near a brush implant portion 3. It is slightly thicker than the handle of shi.

The handle 2 has a cylindrical shape as a whole, and the internal cavity of the thick part is the storage part 5, and the internal cavity of the thin neck part 4 is the conduit 6.

At the end of the handle 2, an air pump 7 as a pressure feeding means is mounted. The air pump 7 has a thread groove engraved portion 8 for detachably fixing the whole to the end of the handle 2, a cylinder 9, a piston 10, a compression spring 11 for urging the piston 10 in a return direction, an air pump. It comprises an outlet 12 and its air check valve 13, and an air inlet 14 and its air check valve 15.

The air pump 7 is entirely formed in a columnar shape having the same diameter as the handle 2, and is provided on a screw groove 18 provided on an inner surface of the screw groove engraving portion 8 and on an outer periphery of an end of the handle 2. The handle 2 is detachably attached to the end of the handle 2 by engagement with the screw groove 19. It is part of handle 2 in appearance and can be handled as part of handle 2 when using a toothbrush.

The conduit 6 has one end communicating with the reservoir 5 and the other end opening to the brush installation surface 20. However, a check valve 22 having a small ball 21 as a valve body is provided at the opening of the conduit 6 in the brush installation surface 20, and the valve body made of the small ball 21 has a small protrusion which can be bent by elastic deformation. The tip of 23 (four in total) is pressed against the opening of the conduit 6.

Next, how to use this toothbrush will be described.

First, the air pump 7 is removed from the handle 2, and the open storage section 5 is filled with toothpaste while being pushed out of the tube (an optional adapter may be used to facilitate filling). When the toothpaste is completely filled in the reservoir 5, the air pump 7 is attached again.

When the piston 10 of the air pump 7 is actuated by pushing the exposed end 10 a with a finger, the air in the cylinder 9 is compressed, and the compressed air pushes the check valve 13. It opens and flows into the storage unit 5 from the air discharge port 12. Due to the pressure of the air that has flowed in, the toothpaste in the storage section 5 flows into the conduit 6, and pushes up the small balls 21 at the tip of the conduit 6 (the small protrusions 23 are bent upward at this time). It flows out and adheres to the brush 1.

If the piston 10 is stopped after an appropriate amount of toothpaste is extruded, the pumping of the toothpaste is stopped. When the pushing pressure is removed, the check valve 22 returns to the closed state due to the restoring force of the small projection 23, and the opening of the conduit 6 is closed, so that unpasted toothpaste in the conduit 6 is contaminated during brushing. Never. Also, even if the toothbrush is stored with the brush planting part 3 side down after brushing, the toothpaste will not leak out.

If the toothpaste that has been used many times is no longer used, the above-mentioned filling operation is performed again. In this way, it can be used repeatedly.

FIG. 2 shows another embodiment of the present invention.

The structure and the like of the storage portion 5, the brush implantation portion 3, and the opening of the conduit 6 of the toothbrush are almost the same as those of the embodiment of FIG. 1 (for easy reference, the same reference numerals are used for the common members). Is attached.). The brush implant 3 and the handle 2 can be separated at the neck 4, so that when the brush deteriorates due to use, only the brush implant 3 can be replaced.

In this example, the air pump 25 is located in an air pump storage section 26 provided in the middle part of the handle 2 and at a position close to the neck 4. Can be operated.

As shown in FIG. 3 which is an exploded enlarged view, the air pump 25 has a bag-like member 28 having a bellows-like body 27 which can be deformed in the vertical direction (a direction orthogonal to the handle 2) in the drawing. It comprises a disc-shaped operation plate 30 having four legs 29, and a compression spring 32 interposed between the bottom 31 of the bag-like member 28 and the operation plate 30.

The bottom portion 31 of the bag-like member 28 has a disk shape, and has an air outlet 33 at the center. A ring-shaped annular member 35 is fixed to the upper edge of the body 27.

The diameter of the operation plate 30 is slightly larger than the outer diameter of the annular member 35. The four legs 29 of the operation plate 30 are fitted into the ring of the annular member 35 and are slidable vertically along the inner peripheral surface of the annular member 35. Although the operation plate 30 is always pushed upward by the action of the compression spring 32 between the operation plate 30 and the bottom 31 of the bag-like member 28, there is a small protrusion 36 facing outward at the tip of the leg 29. Since it is caught by the annular member 35, the sliding range of the leg portion 29 (the vertical movable range of the operation plate 30) is limited to a certain range, and the operation plate 30 does not come off from the annular member 35. When the operation plate 30 is at the highest position, a small gap is formed between the operation plate 30 and the annular member 35. A thin rubber packing 37 is attached to the lower surface of the operation plate 30 at a position facing the annular member 35 to ensure airtightness.

An air supply hole 38 extends from the air pump housing portion 26 toward the end of the handle 2. A detachable cap 39 is provided at the end of the handle 2, and an air supply hole 40 opening toward the storage section 5 is provided in the wall of the cap 39, and the air supply port extending from the air pump storage section 26 is provided. It is arranged so as to be connected to the hole 38. A check valve 41 for preventing the air or the toothpaste from flowing back is provided at the opening of the air supply hole 40 on the storage section 5 side. The bottom 31 of the bag-shaped member 28 of the air pump 25 is adhered to the air pump housing 26, and the air discharge port 33 faces the opening of the air supply hole 38 in the air pump housing 26.

The storage section 5 can be used by directly filling toothpaste as in the case of the example of FIG. 1 as described above, or can be loaded with the cartridge containing toothpaste shown in FIG.

The cartridge has a cylindrical shape made in accordance with the space of the storage portion 5 (including the space of the cap portion with the cap 39). When loaded into the reservoir 5, the annular projection 43 at the inlet of the conduit 6 fits into the opening 42 at the distal end thereof, thereby ensuring airtightness. Toothpaste is filled into the toothpaste, and seals 45 and 46 are attached to both the front end opening 42 and the rear end opening 44 until the start of use.

When the operation button 30 is pressed while the storage unit 5 is filled with toothpaste or a cartridge containing toothpaste is loaded, the lower surface of the operation button 30 (specifically, affixed thereto) The rubber packing 37) adheres to the annular member 35 and descends as it is to deform the torso 27 flat. Since there is no air gap between the operation button 30 and the annular member 35, the air in the bag-like member 28 is compressed and sent out from the air discharge port 33 to the air supply hole 38, and the air supply hole 40, enter the storage section 5 via the check valve 41. As in the case of the example of FIG. 1, the toothpaste in the storage section 5 is pushed out to the brush implantation surface 20 via the conduit 6 by the pressure of the supplied air.

When the finger holding down the operation button 30 is released, the operation button 30 is pushed by the compression spring 32 and rises, and separates from the annular member 35. Air can flow into the bag-like member 28 from the gap formed between the operation button 30 and the annular member 35, and the upper limit of the operation button 30 is reached when the annular member 35 is caught on the small projection 36 of the leg 29. And return to the original position.

Although the present invention has been described with reference to specific examples, the present invention is not limited to the above two examples, and there may be many other embodiments within the scope of the technical idea of the present invention. Needless to say.

[0031]

[Effect of the invention]

 According to the present invention as described above, the operation of pushing out the toothpaste from the tube and attaching it to the toothbrush every time the toothpaste is performed becomes unnecessary, and the pushed-out toothpaste is dropped or the toothpaste that has been excessively used is used as it is. Such waste is almost eliminated.

In addition, since the toothpaste pushing operation can be performed with one hand, the synergistic effect with the above-mentioned advantages makes it possible to easily brush a person with impaired vision or a person with an impaired arm, finger, or the like. Is big.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of the present invention.

FIG. 3 is an exploded sectional view of the air pump 25 of FIG. 2;

FIG. 4 is a sectional view of a cartridge used in the embodiment of FIG.

[Explanation of symbols]

 1: brush 2: handle 5: toothpaste storage section 6: conduit 7, 25: air pump 12, 33: air discharge port 38, 40: air supply hole

Claims (4)

[Utility model registration claims] 1. A toothpaste storage portion in which a hollow portion is provided inside a handle so that toothpaste can be filled therein, a conduit extending in a distal direction from the toothpaste storage portion and opening at a brush installation surface, and a storage portion. A toothbrush comprising toothpaste pressure-feeding means for extruding toothpaste stored in a toothbrush into a conduit. 2. The toothbrush according to claim 1, wherein the toothpaste pumping means is an air pump mounted on a handle. 3. The toothbrush according to claim 1, further comprising a toothpaste storage portion capable of loading a cartridge filled with toothpaste. 4. The toothbrush according to claim 1, further comprising a check valve at a conduit opening in the brush installation surface.