JPS6226105Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application] This invention relates to an improvement of a spray inhaler used to spray a medicinal liquid into a mist and administer it to the throat and oral cavity.

[Conventional technology and problems]

This type of inhaler is mainly used for children who are susceptible to colds, etc., but conventional inhalers are steam-type and are dangerous and cumbersome for children to handle.
In recent years, a structure has been provided in which the rotational force of a motor is used to drive the pneumatic feeding mechanism 9 to atomize the chemical solution.

In this case, the following points must be kept in mind: (1) The rotational force of the motor will not cause the hand to shake, causing the spray direction to become unclear and spraying around the mouth. (2) Even a child's hand can grasp the product firmly. (3) It is easy to attach and remove the chemical tank; and (4) it prevents the chemical from flowing into the battery even if the case is accidentally tilted.

[Means for solving problems]

This idea was made in consideration of the above points, and includes a battery for power supply placed at the rear end of the main body case, a chemical tank and a spray nozzle at the front end, and the chemical tank mentioned above can be attached to and removed from the main case. In addition, a driving motor for the pneumatic feeding mechanism is disposed between the battery and the chemical tank, and the width of the main body case is tapered from the rear end to the front end.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the drawings.

First, in FIGS. 1 to 10 showing the first embodiment, 1 is a spray inhaler, which has a main body case 2.
and a chemical solution tank 3 which is detachably attached thereto. The main body case 2 is made of synthetic resin and is molded into a pistol shape as a whole, and has a horizontal cylinder part 4 and a vertical cylinder part 5 integrally molded perpendicular to the horizontal cylinder part 4. An inner corner space formed by the front wall 5a of the vertical cylindrical portion 5 is defined as a tank mounting portion 6.

A spray nozzle 8 is inserted into the nozzle holding cylinder 7 in the opening at the tip of the horizontal cylinder part 4 of the main body case 2, and behind the spray nozzle 8 there is an air pressure feeding mechanism 9 for feeding compressed air to the spray nozzle 8. Built-in. A vertical motor 10 serving as a driving source for the air pressure feeding mechanism 9 and a battery 11 serving as a power source for the motor 10 are built into the vertical cylinder portion 5 .

In this way, the power supply battery 11 is arranged on the rear end side P of the main body case 2, and the chemical solution tank 3 and the spray nozzle 8 are arranged on the front end side Q.
The driving motor 10 of the pneumatic feeding mechanism 9 is arranged between the air pumping mechanism 9 and the chemical liquid tank 3, and the battery 11 and motor 10, which are heavy items, are moved toward the rear end side P so that the center of gravity is positioned as close to the hand as possible. In addition to the arrangement, the vibration of the rotating motor 10 is suppressed by the weight of both sides by positioning the motor 10 between the battery 11 and the chemical tank 3.

The width of the main body case 2 is shown in Figure 5, especially in Figure 8.
As shown in the figure, it is inclined so as to taper from the rear end side width W ₁ to the front end side W ₂ .

Therefore, by making the rear end side P of the main body case 2, which is located in the palm, thick and tapering toward the part that touches the fingers, it is possible to grip the main body case firmly as if squeezing the hand.

The air pressure feeding mechanism 9 shown in the illustrated example employs a diaphragm pump, and is equipped with diaphragms 14 behind both suction valves 13 provided below the discharge valve 12 provided at the rear of the spray nozzle 8, and mounted on the shaft of the motor 10. By reciprocating the diaphragm 14 with the rotation of an eccentric cam 15 with a balancer directly connected to the air intake valve 13, air is sucked into the diaphragm 14, and the air is discharged from the discharge valve 12 and sent under pressure to the spray nozzle 8. . The suction valve 13 is located in the main body case 2.
The air intake port 16 is connected to an air intake port 16 projecting from the side.

Further, a liquid suction pipe 17 is provided on the lower surface 4a of the horizontal cylinder part 4 so as to hang down to the tank mounting part 6, and a suction port 18 at the upper end of this liquid suction pipe 17 is provided so as to face into the spray nozzle 8. , a liquid suction port 19 is provided at its lower end.

The liquid suction port 19 is connected to the liquid suction pipe 1 as shown in FIGS.
The bottom wall 19a of the synthetic resin is molded into a cylindrical shape with a bottom that fits into the lower end of the hole 2.
Group 0 is formed. The small holes 20 are formed by arranging a plurality of circular recesses 21 in a row on the same circle on the outer surface of the bottom wall 19a, and overlapping a part of the circumference of each of the circular recesses 21 at the center of the inner surface of the bottom wall 19a. It is formed by providing one circular recess 22 under such an arrangement and making the overlapping portion of the outer recess 21 and the inner recess 22 into a penetrating state. Contrary to the illustrated example, the small holes 20 groups can also be formed by providing a plurality of recesses 21 on the inner surface of the bottom wall 19a and one recess 22 on the outer surface of the bottom wall 19a. Since these 20 groups of small holes are processed at the same time by molding the liquid suction port 19 with synthetic resin, it is extremely easy and inexpensive to process compared to cloth or wire mesh filters used for conventional liquid suction ports. In addition, there is no need to take special consideration to unnecessary chemical reactions with the chemicals used, which tend to occur with conventional filters, increasing the degree of freedom in design.

The chemical liquid tank 3 is molded of synthetic resin into a square cylinder shape that matches the tank mounting part 6, and the lower surface 4 of the horizontal cylinder part 4
A liquid suction pipe 1 is attached to the upper surface wall 3a that is in contact with the
Chemical solution supply port 2 into which the liquid suction port 19 at the lower end of 7 is inserted.
3 is provided to project upward, and a spoon holding protrusion 25 having a spoon through hole 24 is provided on the outer surface of the rear wall 3b which overlaps with the front wall 5a of the vertical cylindrical portion 5. The spoon 26 for drug preparation is the handle part 26
a is inserted so that it can be inserted and removed in the vertical direction so that it is supported in a vertical position.

Furthermore, surrounding walls 27, 28, and 29 surrounding the drug mixing spoon 26 are provided on three sides of the left and right side edges and the lower edge of the rear wall 3b of the drug solution tank 3 to protrude rearward. Of these, the left and right enclosure walls 27 and 28 are groove-shaped so as to fit vertically slidably into a pair of installation guide protrusions 30 and 31 with an L-shaped cross section protruding from the front side of the vertical cylinder portion 5. The mounting guide pieces 30, 3 are formed in a cross section.
a protrusion 27a that fits into the grooves 30a and 31a of 1;
28a and the protrusions 30 of the mounting guide protrusions 30 and 31
grooves 27b and 28b that fit into the grooves 27b and 31b. Therefore, when storing the chemical liquid tank 3 in the tank mounting portion 6 of the main body case 2, by sliding the chemical liquid tank 3 upward under the guidance of the installation guide protrusions 30 and 31, the chemical liquid tank 3 will be placed in the chemical liquid supply port. The lower end of the liquid suction pipe 17 is inserted into 23, and the upper surface wall 3a is brought into contact with the lower surface 4a of the horizontal cylinder part 4, and is surrounded on all sides by the left and right surrounding walls 27, 28, 29 and the lower surface 4a of the horizontal cylinder part 4. Spoon storage space 3
2 is formed.

In this stored state of the chemical liquid tank 3, the chemical liquid tank 3 is located at the projections 27a of the left and right surrounding walls 27,
28a and the protrusions 30 of the mounting guide protrusions 30 and 31
b, 31b, it is only prevented from separating and moving forward from the main body case 2, and is in a state where it can freely move downward from the main body case 2. Therefore, in order to maintain the attached state of the chemical solution tank 3, it is necessary to prevent its downward movement. To give a preferable example of this downward movement blocking means, when the chemical solution tank 3 is housed in the tank mounting portion 6 as described above, it engages with the lower surface 25a of the spoon holding protrusion 25 on the rear wall 3b. A hemispherical protrusion 33 is provided to protrude from a hole 34 opened in a part of the front wall 5a of the vertical cylinder part 5 so as to be freely retractable. The protrusion 33 engages with the free lower end of a leaf spring 35 whose upper end is fixed inside the front wall 5a of the vertical cylinder portion 5, and the force of the spring 35 causes the protrusion 33 to always protrude from the hole 34. be.

This protrusion 33 is first pushed into the hole 34 by contact with the upper surface 25b of the spoon holding protrusion 25 during the process in which the chemical solution tank 3 is slid upward into the tank mounting portion 6 as described above. Rear side 2
5c, and at the same time as the chemical liquid tank 3 is completely housed, it protrudes from the hole 34 by the force of the leaf spring 35 and engages with the lower surface 25a of the spoon holding protrusion 25, thereby preventing the downward movement of the chemical liquid tank 3. When the chemical solution tank 3 is slid downward along the mounting guide protrusions 30 and 31 to be removed from the tank mounting part 6, the protrusion 33 is moved into the hole 3 by the pushing force of the spoon holding protrusion 25.
The protrusion 33 is pushed in, and as the spoon holding protrusion 25 passes, the protrusion 33 protrudes from the hole 34 by the force of the spring 35.

The means for preventing the downward movement of the chemical liquid tank 3 has a structure that also serves as the spoon holding protrusion 25, so it is extremely simply constructed. In addition, the upper surface 2 of the protruding piece 25
5b and the lower surface 25a, the hemispherical shape of the protrusion 33 allows the engagement and disengagement with the protrusion 33 to be performed very smoothly.

In FIG. 1, 36 is a dustproof cap that surrounds the outer periphery of the spray nozzle 8 within the tip opening of the horizontal tube portion 4, and is detachably attached to the tip of the spout 37 that projects forward. It is designed so that it can be crowned.

In the above configuration, when using the spray inhaler, first remove the drug solution tank 3 from the main body case 2 in the above-described manner, and then supply a drug solution such as saline solution or gargling solution to this tank 3 from the supply port 23. At this time, the drug mixing spoon 26 is removed from the rear wall 3b of the drug solution tank 3 and used for scooping out salt, gargle, etc., and adding it to the tank 3. and,
The drug mixing spoon 26 is attached to the rear wall 3b of the drug solution tank 3.
Attach the chemical tank 3 to the tank attachment part 6 of the main body case 2 and open the liquid suction port 1 at the lower end of the liquid suction pipe 17.
9 is immersed in the chemical solution in the tank 3. Next, a power switch (not shown) is turned on and the motor 10 is driven to cause the diaphragm 14 to reciprocate and eject compressed air from the spray nozzle 8. During this spouting process, the chemical liquid in the tank 3 is sucked into the liquid suction pipe 17 by the suction action of the compressed air.
It is mixed into the vapor through the spray nozzle 8, and is ejected in the form of a mist, and is sent into the user's oral cavity.

As described above, according to this invention, the main body case 2
A power supply battery 11 is arranged on the rear end side P, and a chemical liquid tank 3 and a spray nozzle 8 are arranged on the front end side Q. The chemical liquid tank 3 is detachably attached to the main body case 2, and the battery 11 and the chemical liquid tank 3 are arranged A driving motor 10 of the air pressure feeding mechanism 9 is arranged between the
By reducing the width of the main body case 2 in a tapered manner from the rear end side P to the front end side Q, the battery 11 and motor 10, which are heavy items, are reduced from the rear end side P to the front end side Q of the main body case 2. The center of gravity inside the main body case 2 can be set closer to the rear end side P, and the center of gravity can be placed in the palm of the hand when gripped. The rear end side P is positioned close to the body for a stable grip, and the body case 2 is tapered to match the shape of the fingers of the hand, so even children's small hands can grip it firmly. This allows you to accurately determine the spray direction, and prevents unnecessary wetting of the area around your mouth.

Furthermore, even when the chemical solution tank 3 is replaced, it can be held firmly by a child's hand, so that the ease of replacing the tank 3 can be improved and the spillage of the chemical solution in the tank can be suppressed.

In particular, since the battery 11 and the chemical tank 3 are placed on both sides of the motor 10 that generates shake, the weight at the symmetrical position can act as a shake canceller.
To provide an inhaler that is easy to use, can reduce shaking of the hand when gripped, suppresses discomfort transmitted to the hand, and does not give a sense of fear to children.

[Brief explanation of drawings]

Figures 1 to 10 show an example of the spray inhaler according to this invention, in which Figure 1 is an external perspective view of the spray inhaler, Figure 2 is a perspective view showing the process of installing the drug solution tank, and Figure 2 is a perspective view of the spray inhaler. Figure 3 is a usage diagram, Figure 4 is a vertical side view of the spray inhaler, Figure 5 is a bottom view of the main case with the chemical tank removed, and Figure 6 is a half-cut sectional view of the liquid suction port. , Figure 7 is a bottom view of the liquid suction port,
FIG. 8 is an enlarged cross-sectional view showing how the chemical liquid tank is attached to the main body case when viewed from the bottom of the case, FIG. 9 is a perspective view of the chemical liquid tank, and FIG. 10 is an enlarged cross-sectional view of the spoon accommodating space. 2... Main body case, 3... Chemical tank, 8...
Spray nozzle, 9... Air pressure feeding mechanism, 10... Motor, P... Rear end side, Q... Front end side.

Claims (1)

[Scope of utility model registration request] A power supply battery 11 is placed on the rear end side P of the main body case 2.
A chemical liquid tank 3 and a spray nozzle 8 are respectively disposed on the front end side Q, and the chemical liquid tank 3 is made detachable from the main body case 2, and a driving motor for the air pressure feeding mechanism 9 is provided between the battery 11 and the chemical liquid tank 3. 10, and the width of the main body case 2 is tapered from the rear end side P to the front end side Q.