JPS6040016A - Toothbrush - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a toothbrush, and more particularly to a toothbrush with a built-in dentifrice that can dispense an appropriate amount of dentifrice to brush teeth with a one-touch operation.

Conventionally, various toothbrushes have been proposed in which a fluid dentifrice is contained inside the toothbrush, and when the teeth are brushed, the dentifrice is pushed out and exuded into the bristles.

However, in the conventional type, the toothpaste charged in the handle is pushed out using a pushing member such as a piston, so the dispensing operation is not only troublesome, but also
There is a problem in that it is difficult to extract the appropriate amount of toothpaste needed. In addition, the type with a built-in extrusion mechanism in the handle does not have a large space to store the toothpaste, and if it is a disposable type, for example, the toothpaste will run out sooner than the service life of the claw, and the toothpaste will inevitably run out. There is no choice but to make it possible to replenish toothpaste. Furthermore, it is difficult to perfect the isolation mechanism between the claw part and the inside of the handle.
There have been various drawbacks, such as the risk of backflow into the handle during the day when brushing teeth, which is undesirable from a sanitary standpoint.

In view of this, it is an object of the present invention to provide a toothbrush with a one-touch structure that dramatically improves the conventional toothbrush with a built-in dentifrice and provides a completely new structure and operational feeling that can eliminate the drawbacks of the conventional toothbrush. This was done as a glaring gesture.

The characteristic structure of such a toothbrush according to the present invention is that the flocked rod itself, which has toothbrush bristles on the tip side and the surface side, is connected to the handle part that is held by hand so that it can be pressed down and operated. The purpose is to allow an appropriate amount of liquid dentifrice in a dentifrice container constituting a part of the handle to ooze out onto the flocked surface W so that teeth can be brushed.

The present invention will be described below with reference to embodiments shown in the drawings.

The toothbrush 1 according to the present invention, as shown in the external appearance in FIG. A toothpaste dispensing mechanism 4 is installed inside.

The handle portion 2 is a combination of a handle main body 5 and a dentifrice container 6 connected to the handle main body 5, and a male thread 6A formed on the outer periphery of the opening of the dentifrice container 6. It can be freely connected by fitting into a female thread 5AK4' formed on the inner periphery of the base of the handle main body 5.

The tip of the hair-planting rod 3 is formed into a flat rectangular cross-section like that of a normal toothbrush, and bristles 7 are planted in a required range on the - side of the hair-planting surface 3A.

A dentifrice passage 8 with a hole structure is formed inside the flocking rod 3 from its base 3B to the flocking surface 3A, and this passage 8 either opens directly to the flocking surface 3A or passes through the implanted bristles 7. The bristles 7 are connected to the bristle implantation holes, and a liquid tooth preparation is applied to the root portion of the bristles 7.

The base portion 3B of the flocking rod 3 is connected to the bearing portion 9 of the handle main body 5.
is slidably fitted as tightly as possible to the inner circumferential surface of the
A handle protruding from the outer peripheral surface of the base 3B of the flocking rod 3 in a vertical groove hole 10 formed in the axial direction of the peripheral wall of the bearing portion 9 allows the operating projection 11 to slide as tightly as possible. The fitting between the vertical groove hole 10 and the protrusion 11 prevents the i-bristle portion 3 from rotating and steadying.

Further, an operating pipe 12 of the toothpaste dispensing mechanism 4 is fitted and fixed to the base 3B of the flocking rod 3, and this operating pipe 12 is connected to a bearing hole formed at the bottom of the bearing part 9 of the handle main body 5. 13 so that it can slide as tightly as possible.

The pouring mechanism 4 including the working tube 12 is shown in FIGS. 2 and 3.
As shown in the vertical cross section of an example, the valve portion 15 formed at the end of the actuating tube 12 and expanding into a trumpet shape slides closely against the inner circumferential surface of the handle main body 5. The direction in which the flocking rod 3 projects, including the actuating tube 12, is inserted between the inner end of the actuating tube 12 and the valve seat 16, which is connected to the rear end of the handle main body 5 by screwing or the like. A compression spring 17 is interposed to prevent it from returning.

Veil-shaped first and second valve bodies 19 are provided at the large diameter portion 12A at the tip of the #J pipe 12 and the large diameter portion 16A formed at the tip of the through hole 18 of the valve seat 16, respectively. 20 are installed inside. The first valve element 19 installed in the operating pipe 12 opens and closes the end of the pipe line 12B of the operating pipe 12 to open and close the connection with the dentifrice passage 8. The valve body 2 opens and closes the through hole 18 of the valve seat 16, and includes these valve bodies 19 and 20.
An airtight suction chamber 21 is formed inside the toothpaste container 6. The toothpaste container 6 has a bottomless structure, and as described above, the male thread 6A at the tip is screwed into the female thread 5A of the valve seat 16, so that the handle body 5 is closed. Through this connection, the through hole 18 of the valve seat 16 and the mouth opening n of the container 6 are configured to be in communication.

The bottom of the container 6 is constituted by a piston-shaped movable bottom body n that is slidable in the axial direction in close contact with the inner circumferential surface of the container 6. This movable bottom body is made of soft synthetic resin or the like, and has sliding edges 23B and 23C that widen in a trumpet shape at the axial tip and rear ends of the cylindrical portion 23A and have thin tips. By closely contacting these sliding edges with the inner peripheral surface of the container 6, airtightness is maintained so that the emulsion-like or linear dentifrice array filled in the container 6 does not leak out.

A small-diameter cylindrical portion 23D is formed at the tip of the cylindrical portion 23A, which can fit into the small-diameter portion 6B in the mouth of the container 6, and when the movable bottom body Z is raised to the highest level, the small-diameter cylindrical portion 23D The amount of remaining toothpaste is minimized as much as possible. In the figure, reference numeral 5 denotes a ring for preventing the movable bottom body from slipping off, which is fitted onto the inner circumferential surface of the open rear end of the container 6, and serves as a reinforcing member to prevent the container 6 from deforming due to external forces. Moving edge 23B.

This is to prevent the close contact between 23C and the inner peripheral surface of the container 6 from being impaired.

Next, the operation of the above embodiment will be explained.

In the state shown in Fig. 2, hold the handle part 2 and push it down through the operating protrusion 11 of the flocking rod 3, or push it down by pushing the tip of the flocking rod 3. By hitting/pushing it, the flocking rod 3 is pushed along the bearing part 9 of the handle body 5 as shown in the third figure,
At the same time, the actuating tube 12 is pushed and enters the handle main body 5, and at this time, the valve body 19 is opened and the valve body 19 is closed.

Then, when the pressure on the flocking rod 3 is released, the flocking part 3 protrudes and returns to its original state due to the elastic force of the compression spring 17, and the actuating tube 12 is also returned, creating a negative pressure in the suction chamber 21 in the handle body 5. C, valve seat 16
The liquid dentifrice U in the container 6 flows through the through hole 18 into the handle body 5.
It is sucked into the suction chamber 21 inside.

Due to this suction, the volume inside the container 6 decreases, and following the decrease, the movable bottom body 23 moves forward in close contact with the inner circumferential surface of the container 6.

If you push down the flocking rod 3 again in the same way as above,
This time, the valve body 19 opens as the actuating tube 12 enters, and the valve body closes, and the toothpaste that had been sucked into the handle body 5 is transferred to the conduit 12B of the actuating tube 12 and the toothpaste in the flocking rod 3. When the dentifrice is pushed out through the passage 8 and the pressure of the flocking rod 3 is released, the dispensing of the dentifrice stops, and the dentifrice is sucked from the container 6 into the suction chamber 21 in the handle body 5 again. Due to this suction, the movable bottom body n in the container 6 moves forward according to the amount of dentifrice dispensed in the same manner as described above.

By performing this operation 2 to 3 times in the initial stage of use, the toothpaste column is separated from the handle main body 5 to the conduit 12B of the actuating tube 12.
, the inside of each toothpaste passage 8 is filled, and from now on, the flocking rod 3 is filled with 1
Each time you press it, one batch of toothpaste oozes out onto the flocked surface 3A.
I can brush my teeth.

Note that if the amount of suppression in one session is insufficient due to individual differences, two or more suppression operations may be performed.

When the entire amount of toothpaste in the container 6 has been used, unscrew the container 6 from the valve seat 16, open a new container 6, and reconnect the toothpaste to continue using it immediately. Can be done. Furthermore, during continued use, the flocking surface 3A of the flocking rod 3
If there is a risk that the opening of the tooth agent passage 8 that opens to the tooth i will dry out, the entire bristles 70 may be covered with a cap as shown by the imaginary line in FIG.

In addition, 1. The second valve bodies 19 and 20 are not limited to Seel valves, but may be valves of other configurations as long as they perform the same function.

FIG. 4 shows another embodiment of the present invention. In this embodiment, instead of the valve part 15 of the actuating pipe 12, the actuator 912 and the valve seat 16 are connected by a bellows n, and the inside thereof is a suction chamber. 21, a compression spring 17 is interposed on the outside of the bellows 27, and a bellows row with a bottomed structure is connected inside the small diameter part 6B of the mouth of the container 6, and the bottom of this bellows row is connected to a movable bottom body. For a long time, the inside of the toothpaste was filled with a row of toothpaste in advance.

Since the other configurations are the same as those of the embodiment shown in FIG. 2, corresponding parts are given the same reference numerals and their explanation will be omitted.

Next, the effect will be explained.

When the flocking rod 3 is pressed, the bellows nail is compressed together with the compression spring 17, and at this time the valve body 19 is opened and the valve body is closed. When the compression of the flocking rod 3 is released, the flocking rod 3 is pushed back by the elastic force of the compression spring 17, and the 40-zu n is extended. At this time, the valve body 19 is closed, the valve body is opened, and the toothpaste is sucked into the bellows n from the bellows inside the container 6.

By repeating the above operations, an appropriate amount of the dentifrice can be exuded onto the flocked surface 3A in the same manner as in the embodiment described above.

As explained above, in the toothbrush of the present invention, the bristle-flocked rod is used as the operation part, and by pushing the bristle rod down against the handle body, an appropriate amount of the dentifrice in the container can be exuded onto the bristle-flocked surface. Therefore, not only can you brush your teeth with one-touch operation, but the amount of toothpaste exuded by one operation is fixed, so there is no need to worry about applying germs manually as in the past. This prevents unnecessary consumption of a large amount of toothpaste. In addition, by dispensing the toothpaste by pressing down on the flocked part, an unprecedented feeling of use can be obtained. It is a fun tool to use, can be particularly interesting to infants and children who dislike tooth brushing, and can greatly contribute to inculcating the habit of tooth brushing. Furthermore, since the dentifrice container can be easily attached and detached, the main body of the toothbrush can be used for a long period of time, which is economical.

In particular, in the present invention, when the dentifrice is poured out by pushing the flocking rod, the storage volume of the dentifrice in the container decreases, so there is no need to suck in outside air, and the dentifrice is completely sealed. It has various effects, such as being able to pour out toothpaste, which is extremely desirable from a sanitary standpoint, and requiring fewer parts and being easy to manufacture.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the external appearance of the toothbrush according to the present invention, Fig. 2 is a longitudinal sectional side view of the toothbrush, Fig. 3 is a longitudinal sectional side view of the toothbrush with the flocked rod pushed in, and Fig. C4 shows another embodiment of the same. FIG. ■...Toothbrush, 2...-handle part, 3...Flocking rod,
4...Toothpaste dispensing machine housing, 5...Handle body, 6...
Toothpaste container, 7...hair, 8...dentifrice passage, 9...
・Bearing part, 10... Vertical groove hole, 11... Operation protrusion, 1
2... Operating rod, 13... Bearing hole, 15... Valve part,
16...Valve seat, 17...Compression spring, 18...Through hole, 19, 20...Valve body, 21...Suction chamber,
...Movable bottom body, Sae...Toothpaste. Applicant's agent Kiyoshi Inomata

Claims (1)

[Scope of Claims] 1. The base of the flocking rod, in which hair is implanted on the flocking surface on the tip-face side, is biased in the direction of protruding in the axial direction by applying a rotation prevention means to the bearing part of the handle body. A dentifrice passage is formed from the base of the flocking rod to the flocking surface, and a toothpaste dispensing machine is provided at the base, and this dispensing machine is An operating pipe connected to the base of the flocking rod, a conduit passing through the operating pipe in the axial direction, and a first valve body and a second valve body provided on a valve seat at the rear end of the handle body.
a valve body, a dentifrice suction chamber airtightly formed between these valve bodies, and a container connected to the handle main body so that the inside can communicate with the container, for dispensing the filled dentifrice. and a movable bottom body that airtightly moves according to the movement of the brush, and by pressing down the flocking rod against the bias, an appropriate amount of liquid toothpaste in the container is applied to the flocking surface. A toothbrush characterized in that it exudes water. 2. The rotation stopper is removed by fitting the operating protrusion protruding from the base side of the flocking rod into a vertical groove cut in the axial direction of the side wall of the bearing portion of the handle main body. The toothbrush according to claim 1, characterized in that the flocking rod can be pressed down using the protrusion.