JPH0537132U - toothbrush - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide a toothbrush built-in toothbrush that can be used continuously by replacing it with a new brush when the brush is worn. [Construction] A dentifrice passage 12 is formed so as to communicate from the base of the bristle rod 3 to the bristle surface 7a, a dentifrice pouring mechanism 6 is provided in the main body of the handle, and a working tube 17 is continuously provided to the base of the bristle rod 3.
A first valve body 23 and a second valve body 24 provided in the axially penetrating duct 17b and the handle body, a dentifrice suction chamber 25 airtightly formed between the valve bodies, and a container 4 is composed of a toothbrush body composed of a movable bottom body 28 that moves in an airtight manner following the pouring of the dentifrice 29 filled therein, and a bristle rod, and the bristle rod is composed of a bristle portion 7 and a base rod 5. Therefore, the base rod 5 and the bristle implanting portion 7 are formed so as to be freely connectable.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a toothbrush, and more particularly to a toothbrush with a built-in dentifrice capable of brushing teeth by pouring an appropriate amount of dentifrice by one-touch operation.

[0002]

[Prior Art]

 Conventionally, various toothbrushes having a fluid dentifrice embedded therein have been proposed so that the toothpaste can be extruded at the time of toothbrushing and exuded to the bristle implant.

However, in the conventional one, the dentifrice loaded in the handle is pushed out by the pushing member such as the piston, so that the pouring operation is not only troublesome but also There is a problem that it is difficult to take out the necessary amount of dentifrice. In addition, the type that has a push-out mechanism inside the handle cannot take a large space to store the dentifrice.For example, if the type is abandoned, the dentifrice will run out earlier than the useful life of the bristles. Inevitably, the composition must be such that dentifrice can be replenished. Further, since it is difficult to completely complete the mechanism for blocking the hair portion from the handle, there is a possibility that the hair flows back from the mouth into the handle during tooth brushing, which is not preferable for hygiene.

Therefore, the applicant of the present invention previously developed a toothbrush such as that disclosed in Japanese Patent Laid-Open No. 60-40016. In this toothbrush, the base of the flocking rod with bristles planted on the flocking surface on the one side of the tip part is applied to the bearing part of the handle body by means of a rotation prevention means to resist pushing in the axially protruding direction. A toothpaste passage is formed from the base portion of the flocking rod to the flocked surface from the base portion of the flocking rod, and a toothpaste pour-out mechanism is provided on the base portion. A series of operating pipes, a pipe line penetrating in the axial direction of the operating pipes, a first valve body and a second valve body provided on a valve seat at the rear end of the stem body, and these valve bodies. The dentifrice suction chamber, which is formed in an airtight manner between the dentifrice and the handle body, is placed in a container connected so that the inner part can communicate with the dentifrice suction chamber. It is composed of a movable bottom body that moves, and the flocking rod is pushed into the main body of the handle to form the first and second valve bodies. That the valve action is obtained so as to dispensed liquid dentifrice in the container connected to the handle body to the hair of the flocking rod.

According to this, an appropriate amount of the dentifrice can be poured out by one-touch operation, and after pouring the dentifrice by the pump action, the movable bottom body rises in proportion to the dentifrice dispensing amount. It has the advantage that there is no suction.

[0006]

[Problems to be solved by the device]

 However, in the above-mentioned toothbrush, when the brush to be implanted on the bristle rod is worn, the handle body including the valve body must be discarded. In this toothbrush, the structure of the handle body is the most costly, and discarding it together with the brush causes a large loss.

In view of this, the present invention has been made for the purpose of providing a toothbrush that can be continuously used by discarding only the brush when it is worn and replacing it with a new brush. ..

[0008]

[Means for Solving the Problems]

 In order to solve the problems of the above-mentioned conventional techniques, the present invention provides a shaft of the shaft of the handle body, in which the base portion of the flocking rod in which hair is planted on the flocking surface on the one side of the tip portion is provided with a rotation stopping means on the bearing portion of the handle body. The dentifrice passage is formed so that it can be pushed in freely against the urging force in the direction projecting to the direction and forms a dentifrice passage that communicates from the base of the flocking rod to the flocked surface, and the dentifrice is poured into the handle body. A mechanism is provided, and this pouring mechanism is provided on the working tube connected to the base of the bristle rod, the conduit extending axially of the working tube, and the valve seat at the rear end of the handle body. A first valve body and a second valve body, a dentifrice suction chamber formed between the valve bodies in an airtight manner, and a container connected to the handle body so as to communicate with the inside thereof. , A toothbrush with a movable bottom that moves airtightly following the filling of the filled dentifrice The flocked rod is composed of two members, a flocked portion at the tip of the flocked rod and a base rod inserted into and supported by the handle body, and the base rod and the flocked portion are formed so as to be connectable. Is.

[0009]

[Action]

 When the flocking rod is pushed down, the dentifrice is sucked in by the interaction of the two valve bodies. The liquid dentifrice in the dentifrice container is sucked into the chamber, and when the flocking rod is released, the interaction of the two valve bodies is caused by the spring force. To pour the dentifrice in the suction chamber onto the flocking surface of the flocking rod. In this way, an appropriate amount of dentifrice can be poured out onto the flocked surface of the flocked part by simply pressing down the flocking rod each time it is used. After using the dentifrice in one dentifrice container, continue to use the brush by connecting a new dentifrice container to the handle body. If the brush of the flocked part is damaged, remove the flocked part from the base part of the flocked rod that is inserted and supported in the handle body, and connect a new flocked part to make a new tooth brush.

[0010]

【Example】

 Hereinafter, the present invention will be described with reference to the embodiments shown in the drawings.

The toothbrush 1 according to the present invention, as shown in FIG. 1 in appearance, comprises a handle body 2, a hair transplant rod 3 and a dentifrice container 4, and the base rod 5 of the hair transplant rod 3 is the above-mentioned. The toothbrush 1 is configured by being axially slidably fitted into the handle body 2 and the dentifrice container 4 being screwed and connected to the opposite side of the handle body 2. A toothpaste pouring mechanism 6 is inscribed in the handle body 2, and a bristle rod 3 is a base rod 5 which is inserted and connected to the handle body 2 and a bristle portion 7 which is connectable to the base rod 5. It consists of

The handle body 2 and the dentifrice container 4 have a female screw 4a formed on the inner circumference of the mouth of the dentifrice container 4 screwed into a male screw 2a formed on the outer circumference of the base of the handle body 2. Therefore, it can be connected freely.

The bristles 7 are formed in a flat shape with a rectangular cross section, as in the case of a normal toothbrush, and the bristles 8 are planted in a required range on the bristling surface 7 a on one side thereof. 7 is screwed to the tip of the base rod 5 by, for example, a male screw 9 and a female screw 10 as illustrated in FIG. This connecting means may be screwed, or may be press-fitted by providing a positioning guide 11 as shown in FIG.

A dentifrice passage 12 having a hole structure is formed inside the flocking rod 3 so as to communicate from the base rod 5 to the flocking part 7. The passage 12 is directly connected to the flocking surface 7 a of the flocking part 7. The dentifrice in liquid form is soaked into the root portion of the bristles 8 by being communicated with the bristles of the bristles 8 that are open or are planted.

The base rod 5 of the flocking rod 3 is slidably fitted to the inner peripheral surface of the bearing portion 14 of the handle body 2 as closely as possible, and the shaft of the peripheral wall of the bearing portion 14 is fitted. A part of a hand-held operating projection 16 projecting from the outer peripheral surface of the base rod 5 of the bristle rod 3 is fitted in the longitudinal groove 15 formed in the direction so that it can be slid as close as possible, The fitting between the vertical groove 15 and the projection 16 serves to prevent the base rod 5 from rotating and swaying.

An operating pipe 17 of the toothpaste pouring mechanism 6 is fitted and fixed to the base rod 5 of the bristle rod 3, and the operating pipe 17 is formed on the lower bottom portion of the bearing portion 14 of the handle body 2. It is inserted in the formed bearing hole 18 so that it can slide as close as possible.

The pouring mechanism 6 including the actuating pipe 17 is provided on the inner peripheral surface of the handle body 2 at the end of the actuating pipe 17 as shown in the longitudinal cross sections of the examples in FIGS. 2 and 3. A valve body 19 having valve portions 19a and 19b that are formed and expand forward and backward in the axial direction in a trumpet shape is inserted so as to slide in close contact with each other. A compression spring 21 is inserted between the rear end of the main body 2 and a valve seat 20 that is connected by screwing or the like to include the actuating tube 17 and return the bristle tube 3 in the protruding direction.

A large diameter portion (valve chamber) 17 a at the tip of the actuating pipe 17 and a large diameter portion (valve chamber) 22 a formed at the tip of the through hole 22 of the valve seat 20 are respectively ball-shaped first. , And the second valve bodies 23, 24 are internally provided. The first valve body 23 installed in the operating pipe 17 opens and closes the end of the pipe line 17b of the operating pipe 17 to open and close the gap with the dentifrice passage 12, and is installed in the valve seat 20. The second valve body 24 opens and closes the through hole 22 of the valve seat 20, and includes the valve bodies 23 and 24, and an airtight suction chamber 25 is formed in the handle body 2. The first valve body 23 is constantly urged in the closing direction by a weak spring piece 26 so that the first valve body 23 does not open even when the bristle rod 3 is directed downward. If necessary, a thin rod 27 is interposed between the valve bodies 23 and 24 to ensure the interlocking of the valve bodies 23 and 24.

The dentifrice container 6 has a bottomless structure, and is connected to the handle body 2 by screwing the female screw 4 a at the tip thereof to the male screw 2 a of the handle body 2 as described above. By this connection, the through hole 22 of the valve seat 20 and the inside of the container 4 are in communication with each other. When not in use, the female screw 4a is appropriately screwed with an outer cap.

The bottom of the container 4 is constituted by a piston-like movable bottom body 28 that is in close contact with the inner peripheral surface of the container 4 and is slidable in the axial direction. The movable bottom body 28 is formed of a soft synthetic resin or the like, and has sliding edges 28a and 28b which are flared at the tip and the rear end in the axial direction of the outer peripheral tubular portion and have a thin tip. The sliding edges 28a and 28b are in close contact with the inner peripheral surface of the container 4 so that the emulsion or paste dentifrice 29 filled in the container 4 is kept airtight so as not to leak out. ..

There is a through hole 28d for filling the dentifrice at the center of the plate-like portion 28c of the movable bottom body 28, and the protrusion of the pressing member 30 fitted in the rear end of the container 4 as closely as possible. The portion 30a is press-fitted and sealed. The pressing member 30 also functions as a reinforcing member that prevents the container 4 from being deformed by an external force, so that the close contact between the sliding edges 28a and 28b of the movable bottom body 28 and the inner peripheral surface of the container 4 is not damaged. Is becoming

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

When the dentifrice container 4 is screwed and connected to the handle body 2, the dentifrice container 4 is connected to the state shown in FIG. 2 when the screwing is completed, and the inside of the container 4 and the through hole 22 are in communication.

In the state of FIG. 2, whether the handle body 2 and the dentifrice container 4 portion are held down by the operation projection 16 of the bristle stick 3, or the tip of the bristle stick 3 is pushed down. Further, by pushing the tip of the bristle rod 3 against something and pushing it, the bristle rod 3 is pushed along the bearing portion 14 of the handle body 2 as shown in FIG. 3, and the working tube 17 is pushed together with it. The valve body 23 is opened and the valve body 24 is closed.

Then, when the pressure of the bristle rod 3 is released, the bristle rod 3 is projected and restored by the elastic action of the compression spring 21, and the actuating tube 17 is also returned so that the inside of the suction chamber 25 in the handle body 2 is under negative pressure. Then, the liquid dentifrice 29 in the container 4 is sucked into the suction chamber 25 in the handle body 2 through the through hole 22 in the valve seat 20.

Due to this suction, the volume inside the container 4 decreases, and the movable bottom body 28 advances in close contact with the inner peripheral surface of the container 4 following this decrease.

When the pushing down operation of the bristle rod 3 is performed again in the same manner as described above, the valve body 23 is opened by the advance of the actuating tube 17, the valve body 24 is closed and the toothpaste sucked into the handle body 2 is brushed. The agent is pushed out through the duct 17b of the actuating tube 17 and the dentifrice passage 12 in the flocking rod 3, and if the pressure of the flocking rod 3 is released, the pouring of the dentifrice 29 is stopped and the dentifrice is again removed from the container 4. 29 is sucked into the suction chamber 25 in the handle body 2. Due to this suction, the movable bottom body 28 in the container 4 moves forward in accordance with the amount of the toothpaste 29 dispensed, in the same manner as described above.

By performing this operation 2 to 3 times in the initial stage of use, the dentifrice 29 fills the interior of the handle body 2, the duct 17b of the actuating tube 17, and the dentifrice passage 12, and thereafter the flocking rod. Each time 3 is pressed, one dentifrice 29 exudes to the flocked surface 7a and the teeth can be brushed. If the amount of exudation once is insufficient due to individual differences, two or more pressing operations may be performed.

When the dentifrice 29 in the container 4 is completely used up, it is possible to immediately continue the use by unscrewing the container 4 and the valve seat 20 and screwing a new container 4 again. it can. If the bristles of the flocked part 7 become worn while the container 4 is used several times, remove the flocked part 7 from the base rod 5 and connect a new flocked part 7 to the base rod 5. The handle main body 2 and the base rod 5 can be continuously used without being discarded. Furthermore, when the opening of the dentifrice passage 12 opening to the flocking surface 7a of the flocking part 7 may dry during continuous use, the entire part of the bristles 8 is capped as shown by the phantom line in FIG. 31 may be put on.

The first and second valve bodies 23 and 24 are not limited to ball valves, and valves having other configurations may be used as long as they have the same function.

[0031]

[Effect of the device]

 As described above, in the toothbrush of the present invention, the bristling rod that has been bristled is used as the operating part, and the dentifrice in the container can be exuded onto the bristling surface by an appropriate amount by pushing down this on the handle body. Not only can you brush your teeth by one-touch operation, but when the brush part is worn out, you can use it as a new toothbrush if you replace only the bristle part, leaving the base rod attached to the handle body as it is. In addition, the handle main body including the expensive mechanism can be continuously used, the running cost can be kept low, and the effect of further spreading the toothbrush of this type can be further enhanced.

[Brief description of drawings]

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

FIG. 2 is a vertical sectional view of the same.

FIG. 3 is a vertical cross-sectional view showing a state where the hair transplant rod is pushed in.

FIG. 4 is an exploded perspective view of a hair transplant rod.

FIG. 5 is an exploded perspective view showing another example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toothbrush 2 Handle main body 3 Flocking rod 4 Dentifrice container 5 Base rod 6 Pour-out mechanism 7 Flocking part 12 Dentifrice passage 15 Vertical groove 16 Operating protrusion 23 First valve body 24 Second valve body 28 Movable Bottom

Claims (1)

[Scope of utility model registration request] 1. A base of a flocking rod, in which bristles are planted on a flocking surface on one side of a tip portion, is provided to a bearing portion of a handle body by means of a rotation preventing means and is pushed against an urging force in a direction projecting in an axial direction. It is operably fitted inside to form a dentifrice passage that communicates from the base of the flocking rod to the flocked surface, and a dentifrice pouring mechanism is provided in the handle body, and this pouring mechanism is provided for the flocking rod. A working pipe connected to the base, a pipe line extending axially of the working pipe, and a first valve provided on a valve seat at the rear end of the handle body.
And a second valve body, a toothpaste suction chamber formed in an airtight manner between these valve bodies, and a container connected so that the interior can communicate with the handle body and are filled. A toothbrush composed of a movable bottom body that moves in an airtight manner in accordance with the pouring of a dentifrice, in which the flocked rod is composed of two members, a flocked portion at its tip and a base rod inserted into and supported by a stem body. The toothbrush is characterized in that the base rod and the flocked portion are freely connectable.