JPH09215524A - Toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve handling, sanitary, and cost properties of a toothbrush provided with liquid dentifrice. SOLUTION: A stand 1 where bristle 2 is embedded in a valve body 11 is made to be detachably combined with a container 31 filled with a liquid dentifrice serving as a handle with squeeze property. The valve body 11 is equipped with a check-valve 17 for preventing a backflow, a discharge passage 26 delivering the liquid dentifrice to the embedded surface 5 of the stand 1, a check-valve 21 preventing the effluence of the liquid dentifrice, and an air passage 28 introducing air when the container 31 is restored.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothbrush containing a liquid toothpaste.

[0002]

2. Description of the Related Art Liquid dentifrice has a significantly higher fluidity than powder or toothpaste, so that even if an appropriate amount is transferred from a container to hair, it is easily washed away, which is a problem in terms of handling.

Therefore, in order to improve the handleability of the liquid toothpaste and also to make it convenient to carry by integrating the container with the container, the handle has a liquid toothpaste built-in and supplied from the base to the root of the bristles. Is disclosed in Japanese Utility Model Laid-Open No. 5-28231.

That is, in the toothbrush described in the above publication, a cartridge having a hollow base portion is filled with liquid toothpaste is inserted, and a passage hole provided at the tip portion of the handle is communicated with the cartridge. Is designed to open on the flocking surface of the base, and the liquid toothpaste in the cartridge is caused to flow out from the passage hole to the flocking surface by lightly shaking, and a ball valve for preventing outflow is built into the cartridge in a floating state. is there.

[0005]

According to the toothbrush described in the above-mentioned publication in which the liquid toothbrush is built-in and held, the liquid toothbrush is caused to flow out by shaking, so that if it is inadvertently shaken vigorously, it may be scattered and lost to the surroundings. is there. Further, when not in use, depending on the posture, the ball valve does not close, which may cause inconvenience that the liquid toothpaste flows out. Furthermore, when the liquid toothpaste is used by flowing it out, air corresponding to the reduced volume of the liquid toothpaste flows into the cartridge, but dirt and dirt-containing liquid toothpaste in the oral cavity flows in with the air and flows inside the cartridge. I'm afraid of pollution.

The present invention has the above-mentioned toothbrush having a liquid toothpaste, the liquid toothpaste may be scattered and flow out or flow out when not in use, and waste is likely to occur. The first purpose was to solve the problem that there is a concern that there is a risk that it will be added, and in addition to measuring the economic efficiency by providing a function that makes it possible to replenish liquid toothpaste and replace the base. To aim.

[0007]

That is, for this purpose, the present invention has a table in which hair is planted, a valve body containing two check valves, and a container filled with liquid toothpaste arranged in order. The table has a conduction path with a discharge port opened on the flocked surface. Further, the valve body is a discharge passage with a check valve for preventing backflow for delivering the liquid toothpaste inside the container to the flocked surface through the conduction path,
An air passage with a check valve for preventing outflow for introducing the atmosphere into the container. Further, the container is squeezable and forms a handle by itself or in cooperation with the valve body.

[0008] Then, by squeezing the container strongly and squeezing the liquid dentifrice to the flocked surface through the discharge passage and the conducting passage, the liquid toothpaste can be delivered without being scattered around, and the container is restored when the grip is weakened. While sucking the atmosphere through the air passage. When the liquid toothpaste is not discharged, the discharge passage is closed by a check valve, so that the contamination due to the waste of the liquid toothpaste when not in use and the inflow of dirt when the container is restored is prevented.

In addition to the above, the present invention provides a cartridge in which the container is detachably connected to the base end of the valve body at the tip end, or the base is detachably connected to the tip end of the valve body.

Thus, when the liquid toothpaste is used up, the container is replaced and the base and the valve body are repeatedly used, or when the hair is worn or deformed, the base is replaced and the valve body and the container are replaced. It can be used continuously and the economy can be measured.

Furthermore, in the above, by inserting the extraction pipe into the container, it becomes possible to use the liquid toothpaste with almost no residue.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Generally, a base, a valve body, and a container, which are the constituent parts of the present invention, are separately manufactured,
It is assembled by arranging them in this order and connecting them by an appropriate means such as fitting, screwing, and adhering.

[0013] In this case, although it may be inseparably combined to be disposable, the bristles of the table can often be used sufficiently even if the liquid toothpaste is used up, so that the container can be made into a cartridge and detachable from the valve body. It is preferable to combine them. The coupling means is preferably screwed when the discharge passage and the air passage of the valve body are concentrically arranged on the central axis toward the container, and one is arranged on the central axis and the other is arranged laterally. When they are placed, they will be fitted together. Also,
These passages generally break through the wall of the container and open into the container when the container is connected.However, when the container has a discharge pipe, the discharge passage is connected to the discharge pipe at the same time as the connection. To be done.

The check valve built in the valve body can be formed in any shape such as a disk type using elastic rubber, a ball type using a ball and a spring, but the spring flap type has a simple structure. It has excellent closing force and is suitable.

Further, the base and the valve main body may be integrally formed, or may be separately formed and inseparably coupled, but the valve main body has two check valves built therein and is not necessarily inexpensive. Therefore, it is preferable from the viewpoint of maintaining the function as a toothbrush and economically to replace the base when the bristles are worn or deformed by detachably connecting them.

As described above, when the container and the base are removable from the valve body, it goes without saying that these replacement parts are prepared as spare parts.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Explaining an embodiment of the present invention with reference to the drawings, a base 1 is made of a hard synthetic resin, and hairs 2 made of synthetic fibers or animal hairs are planted, and at one end in the longitudinal direction. A connecting shaft 4 having a male screw 3 is integrally formed in a protruding manner, and a conducting path 6 extending from a base end face of the connecting shaft 4 to a discharge port 7 opened at the center of the flocking surface 5 of the stand 1 is provided. . The connecting shaft 4 is formed in a linear shape in the drawing, but may be curved as seen in some toothbrushes. Further, the number of the discharge ports 7 is not limited to one, and a plurality of discharge ports 7 may be provided at appropriate positions.

The valve body 11 is made of a hard synthetic resin and has a columnar shape as a whole, and a connecting cylinder 13 having a female screw 12 at its tip is integrally formed to project.
A step portion 14 for fitting is provided on the outer peripheral surface of the base end portion. Two valve chambers 15 and 16 are provided inside the valve body 11 with the central axis interposed therebetween.
The check valves 17 and 21 in which valve bodies 20 and 24 made of elastic material are attached to the free ends of leaf springs 19 and 23 made of metal or synthetic resin cantilevered to the support shafts 18 and 22 are installed at 6 Has been done.

Further, inside the valve body 11, there is provided a discharge passage 26 having both ends opened at the base end surface 25 and the inner surface of the connecting cylinder 13 on the central axis, and one end is provided in the middle of the discharge passage 26. The check valve 17 inside the valve chamber 15 closes the opening on the inlet side portion of the discharge passage 26 by the spring force. Further, inside the valve body 11, a position projecting from the base end surface 25 at a proper position between the center and the outer peripheral surface and an air passage 28 having both ends opened on the outer peripheral surface of the valve body 11 are provided. The other valve chamber 16 is arranged in the middle of the air passage 28, and the check valve 21 therein closes the opening on the inlet side portion of the air passage 28 by the spring force.

The opening portion of the discharge passage 26 to the base end surface 25 is formed into a tubular shape by an annular groove provided in the valve body 11 surrounding the discharge passage 26 to form a fitting inlet 27, and an air passage 28.
The end portion of the portion projecting from the base end surface 25 has a cylindrical shape with the end surface cut off obliquely to form a nozzle 29.

The container 31 is a squeeze-shaped cylindrical container which is made of synthetic resin material such as polyethylene, polypropylene, polyvinyl chloride or the like and has elasticity and flexibility and is formed into a squeezable wall thickness. Is filled and the pouring pipe 35 is inserted. The spout pipe 35 is made of a hard synthetic resin and extends along the central axis, but is curved from the middle to open the suction port at a position close to the peripheral wall 32 and the base end wall 33. In addition, this pouring pipe 35
The tip of the container penetrates the tip wall 34 of the container 31 in a liquid-tight manner and is temporarily closed by a cap 36. Further, a cylindrical receiving port 37 made of a hard synthetic resin is fitted and fixed to the tip of the container 31 by adhesion, welding or the like.

Then, the base 1 and the valve main body 11 are connected by screwing the connecting shaft 4 into the connecting cylinder 13, and the valve main body 11 and the container 31 are connected by tightly fitting the receiving port 37 in the step portion 14. The table 1, the valve body 11, and the container 31 are connected to each other, and the communication passage 6 and the discharge passage 26 communicate with each other at a screw connection point. Further, by fitting the receiving port 37 until the base end face 25 and the distal end wall 34 are in contact with each other, the spout pipe 35 is tightly fitted in the fitting port 27 and the discharge passage 26 is formed.
The nozzle 29 breaks through the tip wall 34 to open the air passage 28 inside the container 31.

The container 31 and the valve body 11 function as a handle 38. The container 31 maintains a cylindrical shape mainly due to its mechanical strength, and does not deform even if it is gripped with a weak force, so that it can be used normally. There is no obstacle.

Next, when the container 31 is squeezed by squeezing it with a strong force, the internal pressure is increased and the liquid toothpaste passes through the spout pipe 35 and the discharge passage 26 to open the check valve 17 to open the discharge port 7 of the communication passage 6. To the flocked surface 5. Liquid toothpaste is dense hair 2
Since it is supplied to the root of, it can be stored without being washed away.
If the gripping force is weakened when a proper amount is delivered, the container 31 comes to be restored by its own elastic force, and at that time, the inside becomes a negative pressure. Therefore, the check valve 17 of the discharge passage 26 does not close and the liquid toothpaste on the tip side does not flow back, and therefore, even if the liquid toothpaste is delivered with the base 1 in the oral cavity. Dirt in the oral cavity flows into the container 31 and contaminates it,
That does not cause inconvenience.

On the other hand, the check valve 21 in the air passage 28 is the container 3
Although it is closed while squeezing No. 1, it is opened by negative pressure when squeezing is stopped, and the atmosphere is introduced into the container 31 and completely restored. At this time, the liquid toothpaste pushed out into the air passage 28 by the previous pressing is returned to the container 31.

When not in use, the check valves 17 and 21 are closed no matter what position they are left in, so that the liquid toothpaste may inadvertently flow out to stain the surroundings or waste the waste. Absent. In addition, in this embodiment, the pouring pipe 3 is placed in the container 31.
Since 5 is inserted, when the remaining amount of the liquid toothpaste becomes small, the table 1 is squeezed in the state of being gathered toward the base end wall 33 toward the upper side, so that it can be delivered and used almost without leaving. You can

Further, in this embodiment, both the base 1 and the container 31 are detachably connected to the valve body 11, so that when the spare hairs are worn or deformed by preparing these spare parts, And when the liquid toothpaste is used up, not only can these be replaced with new ones to maintain the function as a toothbrush, but also two check valves 17, 2
The economical advantage can be obtained by using the inexpensive valve body 11 having the built-in 1 for a long time. Also, fit,
Since they are connected by screwing on a daily basis, replacement work is easy.

[0028]

As described above, according to the present invention, in a toothbrush having a liquid toothpaste, the liquid toothpaste is filled in a container having a squeeze property that also serves as a handle, and discharge and restoration by pressing and backflow prevention at that time are discharged. Since it is done by the passage, the air passage, and the check valve that opens and closes them, the inconvenience of causing waste or polluting the surroundings by scattering the discharged liquid toothpaste or causing it to flow out when not in use, or the reverse flow It can be used without the problem of contaminating the inside of the container.

Further, since the container and the base can be exchanged, at least the valve main body can be repeatedly used for economic efficiency.

[Brief description of drawings]

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

FIG. 2 is an exploded enlarged vertical sectional view of the embodiment of FIG.

[Explanation of symbols]

1 unit, 2 bristles, 5 flocked surfaces, 6 conduction paths, 7 discharge ports, 11 valve bodies, 17, 21 check valves, 26 discharge passages, 28 air passages,
31 containers, 35 pipes

Claims (4)

[Claims] 1. A table on which bristles are planted, a valve body containing two check valves, and a container filled with liquid toothpaste are arranged in order; The valve body has a discharge passage for delivering liquid toothpaste inside the container to the flocked surface through the communication passage,
An air passage for introducing atmospheric air into the container, a check valve for preventing backflow that is closed toward the container is provided in the discharge passage, and an outflow opening toward the container in the air passage. A check valve for prevention is provided; the container is made of a polymeric material having elasticity and flexibility and has a squeeze property, and is used by itself or in cooperation with the valve body. Forming a handle; a toothbrush characterized by: 2. The toothbrush according to claim 1, wherein the container is a cartridge in which a tip end portion is detachably coupled to a base end portion of the valve body. 3. The toothbrush according to claim 1, wherein the pedestal is detachably connected to a tip portion of the valve body. 4. The toothbrush according to claim 1, wherein an outlet pipe is inserted into the container, one end of which is connected to the discharge passage and the other end of which reaches a base end.