JPH09249273A - Volumetric powder delivering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deliver a constant volume of powder per one operation regardless of the magnitude of force required for pressurizing a container by turning round a container body from an upright position to its initial upright position to allow a predetermined volume of powder stored in a chamber to be delivered through a nozzle under pressure of the container body. SOLUTION: If a container body 1 storing a powder W therein is turned round from an upright position, the powder W flows into a chamber 6 from a through hole 01 formed near the outer periphery of a bottom wall 7b; however, the powder is prevented from flowing out directly through a nozzle 9 by being hindered by a central portion of the wall 7b. If the body 1 is returned to its original position, powder other than certain volume of powder having flowed into the chamber 6 is returned into the container body 1. Under such conditions, if the body 1 is pressurized from outside, air in the body 1 is forced into the chamber 6 through the hole 01 and flows against the underside 4a of a cover 4 so as to be delivered from the nozzle 9. As a result, a predetermined volume can be delivered per one operation and delivery of too much volume can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention inverts a container body in an upright state to return it to the original state so that the powder in the container is introduced into a chamber having a predetermined volume and the container body is pressurized to measure a fixed amount of powder. The present invention relates to a quantitative powder discharging device capable of discharging.

[0002]

2. Description of the Related Art Conventionally, there are various devices for quantitatively discharging the contents contained in a container body. For example, there are an oil bottle used for industrial oil and the like, a drug ejector for ejecting a fixed amount of a liquid drug toward the throat, or a drug sprayer for atomizing and spraying the drug.

[0003]

[Problems to be Solved by the Invention]
Since the discharge amount is affected by the amount of force that pressurizes the container body, it is difficult to produce an appropriate amount of oil, and sometimes the oil is overproduced. Further, when the nozzle is used with the upper side, it is not possible to easily discharge the oil simply by pressurizing the container body.

Further, the medicine ejector is of a cylinder pump type, and when the user pressurizes the operating rod projected from the container body, a fixed amount of liquid medicine previously taken into the cylinder is discharged. When the pressure applied to the operating rod is released, the operating rod returns to its original position by a spring or the like, and a fixed amount of liquid medicine is sucked into the cylinder again. However, this device is structurally complex and expensive.

Further, the drug sprayer discharges by the principle of spraying, and has a relatively simple structure,
Although it is suitable for spraying liquid chemicals, if the content is a powdery chemical or the like, it cannot be discharged in a fixed amount.

In particular, when the content is a powder, the same goes for the oil bottle and the cylinder pump type chemical ejector, and there is a drawback that a fixed amount cannot be discharged. Therefore, if it is used as a device for administering a powdered drug to a patient, the dose of the powdered drug will be different, which makes it impractical.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and is a container in which powder is contained, and the force for pressurizing the container is adjusted or stored in the container. It is an object of the present invention to provide an inexpensive quantitative powder discharging device having a simple structure capable of discharging a fixed amount of powder each time regardless of the amount of the discharged object or the state of the container itself.

[0008]

Means for Solving the Problems A quantitative powder discharging apparatus according to the present invention for achieving the above-mentioned object has a container body in which powder is stored and which can be restored by pressure deformation. The opening of the main body is closed by a lid, and a chamber having a predetermined volume is defined by a partition inside the lid, and a through hole is opened in the bottom wall of the partition and the chamber is provided outside the lid. A fixed amount of powder contained in the chamber is discharged from the nozzle portion by pressurizing the container body by providing a nozzle portion communicating with the container body and reversing the container body from the standing position to return it to the original standing position. It is characterized by doing so.

With this configuration, when the container body is turned upside down, the powder enters the chamber through the through hole formed in the bottom wall of the chamber having a predetermined volume. Then, when the container main body is returned to the original state, the powder remains in the chamber in a fixed amount without dropping from the through hole due to a crosslinking phenomenon or the like at the through hole portion. When the container body is pressurized from the outside in this state, the air in the internal space of the container body is pressurized, and the powder in the chamber is discharged from the nozzle portion through the through hole. Therefore, regardless of the state of the container, it is possible to easily discharge a fixed amount of powder each time, and even if it is used as a device for administering a drug to a patient, there is a problem that the amount of the drug is incorrect. In addition, it can be used until the powder becomes a small amount.

When forming the through hole, if the diameter on the container body side is large and the diameter on the chamber side is small, the powder remaining in a fixed amount in the chamber will not drop from the through hole to the container body.

If the nozzle portion also has a nozzle hanging portion that projects into the chamber by a predetermined length, the air in the container body when the container body is pressurized from the outside flows into the chamber through the through hole. However, it does not immediately go to the nozzle part, but once it reaches the lower surface of the lid from the through hole, then descends and goes to the nozzle part, so all the powder in the chamber is caused by this air flow. It is carried to the nozzle and discharged.

The nozzle portion is formed integrally with the bottom wall of the partition body and has a through hole formed in the vicinity of the bottom wall. The nozzle portion is attached to the lid body in a positionally adjustable manner, and the side wall is provided. It is configured to be in sliding contact with a sleeve hanging from the lid. With this configuration, the volume of the chamber can be increased / decreased depending on the length of the protrusion of the nozzle portion, so that the powder discharge amount per time can be easily increased / decreased, and the versatility of the apparatus is enhanced. If the lid is detachably attached to the opening of the container body, the powder can be easily taken in and out, and the convenience is further improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. 1 is a cross-sectional view showing an embodiment of the present invention, FIG. 2 is a cross-sectional explanatory view of essential parts of the same embodiment, FIG. 3 is an exploded perspective view of the same embodiment, and FIG. 4 is another embodiment of the present invention. FIG. 5 is a cross-sectional view showing a form, FIG. 5 is an exploded perspective view of the other embodiment, and FIG. 6 is a cross-sectional view showing an operating state of the other embodiment.

The container body 1 has a cylindrical shape that can be deformed by pressure and can be restored, and is made of a transparent or translucent material whose inside can be seen to some extent, such as polypropylene.

This container body 1 has an opening 2 (see FIG. 2) at the top.
), And a lid 4 is detachably attached to the rim portion 3. This lid 4
The sleeve 5 is integrally hung downward from the lower surface 4a, that is, toward the container body 1 side, and the convex portion 5a formed on the outer surface of the sleeve 5 and the concave portion 3a formed on the inner surface of the lip 3 are It is fitted.

Below the lid 4, the contents W are
For example, a chamber 6 for accommodating a powdered medicine or the like in a fixed amount is formed. The chamber 6 is formed by inserting a partition 7 having a U-shaped cross section into the sleeve 5, and a side wall 7 a of the partition 7 is tightly fitted to the inner peripheral surface of the sleeve 5.

As shown in FIG. 2, in the bottom wall 7b of the partition 7, four through holes O1 are formed in a portion other than the center, that is, in the vicinity of the outer periphery, and the inside of the container body 1 passes through these through holes O1. The powder W is introduced into the chamber 6.

In particular, this through hole O1 is shown in FIG.
When the lid 4 is turned downward, the powder W is introduced into the chamber 6 and the container body 1 is inverted again to return to the original state. In order to prevent the O1 from falling through the through hole O1 due to a crosslinking phenomenon, etc.
It is preferable that the side has a large diameter and the chamber 6 side has a small diameter.

The partition 7 may be fixedly attached to the sleeve 5, but when the volume of the chamber 6 is variable, the side wall 7a of the partition 7 and the sleeve 5 are fitted in a concavo-convex manner. The position of the partition 7 with respect to the sleeve 5 may be changed to increase or decrease the volume of the chamber 6.

On the other hand, on the upper side of the lid body 4, that is, on the side opposite to the container body, a nozzle portion 9 communicating with the chamber 6 is provided, and the container body 1 is deformed under pressure so that the inside of the chamber 6 is compressed. The powder W is discharged from the nozzle portion 9 together with the air. It is preferable that the nozzle portion 9 also has a nozzle hanging portion 9a that also protrudes for a predetermined length inside the chamber 6. In addition, the code | symbol "C" in FIG. 1 is a cap.

Next, the operation of the quantitative powder discharge device will be described. When the container body 1 in which the powder W such as powdered medicine is stored is inverted from the standing state as shown in FIG. 1, the powder W is
Although it enters the chamber 6 through a through hole O1 formed near the outer periphery of the bottom wall 7b, it is obstructed by the central portion of the bottom wall 7b.
It does not directly flow out through the nozzle portion 9.

When the container body 1 is returned to its original state,
The powder other than the fixed amount of powder that has flowed into the chamber 6 is returned to the original container body. In this case, the powder W in the chamber 6
Remains in the chamber 6 without falling from the through hole O1 due to a crosslinking phenomenon or the like at the through hole O1.

In this state, when the container body 1 is pressurized from the outside, the air in the container body 1 vigorously enters the chamber 6 through the through hole O1, hits the lower surface 4a of the lid 4, and the nozzle portion 9 Will be discharged more.

Particularly, in the case where the nozzle hanging part 9a is projected into the chamber 6 for a predetermined length, when the container body 1 is pressurized from the outside, the air in the container body 1 passes through the through hole O1 and the chamber Even if it flows into the nozzle 6, it does not immediately face the nozzle portion 9, but once reaches the lower surface 4a of the lid 4 from the through hole O1 and then descends toward the nozzle portion 9 as shown by the arrow in FIG. Therefore, all the powder W in the chamber 6 is carried to the nozzle portion 9 by this air flow and discharged.

Therefore, irrespective of the shape of the container body 1 and the like, a fixed amount of powder can be easily and surely discharged each time, and the device can be used as a device for administering a powder drug to a patient. There is no mistake in the amount of drug.

When the pressure on the container body 1 is released after a fixed amount of discharge is completed, the air outside the container body 1 flows into the container body 1 through the nozzle portion 9 and the through hole O1. Restore the original state again. Hereinafter, by performing the same operation, a fixed amount of the powder W is discharged from the nozzle portion 9 every time.

The above embodiment can be used in various fields, but is particularly preferable when a doctor or a dentist applies a fixed amount of a drug (eg, hemostatic agent) to the oral cavity of a patient. In other words, the conventional drug administration performed by doctors and the like is to put the drug on a small spoon, bring it into the patient's oral cavity, and spray it into the oral cavity.
The medicine may spill on the patient's tongue, or the medicine may not be spread well on the affected area such as the throat. However, by using the above-described embodiment, the doctor or dentist can easily and accurately apply the drug to the affected area, and the patient is comfortable without feeling uncomfortable due to the doctor's carelessness and It will be a prompt treatment.

The present invention is not limited to the above-described embodiments, but can be variously modified within the scope of the claims. In the embodiment described above, the nozzle portion 9
Is integrally attached to the lid body 4, and the partition body 7 is closely fitted to the lid body 4. However, the present invention is not limited to such a configuration, and is configured, for example, as shown in FIGS. You can use what you have done.

In the embodiment shown here, the nozzle portion 9 is integrated with the bottom wall 7b of the partition 7 and a part of the side wall 7a, and the side wall 7a is in sliding contact with the sleeve 5. The mounting position is adjustable with respect to the lid 4. In this case, it is necessary to open a through hole O2 near the bottom wall 7b of the nozzle portion 9.

That is, one or more recesses 10 are formed on the lid 4 side, and one or more protrusions 11 are formed on the nozzle portion 9 side, and the recesses 10 and the protrusions 11 are fitted appropriately. When the nozzles 9 are fitted together, the protruding position of the nozzle portion 9 is adjusted, and thereby the volume of the chamber 6 is adjusted.

According to this structure, for example, as shown in FIG. 4, when the protruding length L of the nozzle portion 9 is shortened, the position of the partition 7 is lowered, so that the volume of the chamber 6 is increased. In addition, as shown in FIG. 6, the nozzle portion 9
If the protruding length L of is increased, the position of the partition body 7 is located above, and the volume of the chamber 6 is reduced.

As a result, the discharge amount of the powder W for one time can be increased or decreased, and the versatility of the device of the present invention is enhanced.

[0033]

As described above, according to the quantitative dispensing device of the present invention, when the container body is turned upside down and the container body is returned to the original state, the powder remains in the chamber in a fixed amount, In this state, if the container body is pressurized from the outside, the powder in the chamber is pressurized by the air in the internal space of the container body and discharged from the nozzle through the through hole. It becomes possible to discharge a fixed amount for each time, and it is possible to prevent the container from being over dispensed regardless of the state of the container body. Therefore, the present invention can be used as a device for administering a drug to a patient without any problem.

Further, if the nozzle portion is projected into the chamber for a predetermined length, all the powder in the chamber is carried to the nozzle portion by the air flow and discharged.

In addition, if the lid is detachable from the opening of the container body, the powder can be easily taken in and out, and the convenience is further improved.

[Brief description of drawings]

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

FIG. 2 is an explanatory cross-sectional view of a main part of the same embodiment.

FIG. 3 is an exploded perspective view of the embodiment.

FIG. 4 is a cross-sectional view showing another embodiment of the present invention.

FIG. 5 is an exploded perspective view of the other embodiment.

FIG. 6 is a sectional view showing an operating state of the other embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Container main body, 2 ... Opening part, 4 ... Lid body, 6 ... Chamber, 7 ... Partition body, 7a ... Side wall of the partition body, 7b ...
Bottom wall of partition, 9 ... Nozzle portion, 9a ... Nozzle hanging portion, O1, O2 ... Through hole, W ... Powder.

Claims (5)

[Claims] 1. A container body (1) in which powder (W) is contained and which can be restored by pressure deformation, and which has an opening (2) of the container body (1) by a lid (4). Closed, a chamber (6) with a predetermined volume is defined inside the lid (4) by a partition (7), and a through hole (O) is opened in the bottom wall (7b) of the partition (7). Inside the chamber (6), a nozzle part (9) communicating with the chamber is provided outside the lid (4), and the container body (1) is inverted from the standing position and returned to the original standing position. A quantitative powder discharge device characterized in that a fixed amount of powder (W) contained in the container is discharged from a nozzle section (9) by pressurizing the container body (1). 2. The quantitative powder discharging device according to claim 1, wherein the through hole (9) has a large diameter on the container body (1) side and a small diameter on the chamber side. . 3. The quantitative powder discharging device according to claim 1, wherein the nozzle portion (9) also has a nozzle hanging portion (9a) protruding in the chamber for a predetermined length. 4. The nozzle part (9) is formed integrally with the bottom wall (7b) of the partition body (7) and has a through hole (O2) formed near the bottom wall (7b). And is attached to the lid body (4) so that its position can be adjusted, and the side wall (7a) is attached to the lid body.
The quantitative powder discharging device according to claim 1, wherein the device is configured to be in sliding contact with the sleeve (5) hanging from the (4). 5. The quantitative powder discharging device according to claim 1, wherein the lid (4) is detachable from the opening (2) of the container body (1).