JP5331985B2 - Manual powder spray device and manual powder spray container using the same - Google Patents

Description

  The present invention relates to a manual powder spray device that mixes and sprays powders of cosmetics, pharmaceuticals, and the like in a manually generated air flow and a manual powder spray container using the same.

Spray devices used for cosmetic powders are known that spray powder using an air flow from an air flow source. In this spray device, cosmetic talcum powder 32 is accommodated in a container 28, and a valve 27 provided above a small hole 31 provided in a stopper 30 on the upper part of the container is opened by a trigger 40, and a passage is formed. 26 communicates with the passage 21 so that the powder 32 is mixed and injected into the air flow (see Patent Document 1).
A manual inhaler shown in FIG. 8 is known as a powder spray device for injecting powder such as cosmetics and pharmaceuticals into a manually generated air flow. A metal lid b to which a metal thin tube d is fixed is fitted into the opening of the glass container a containing powder, and the metal thin tube d and the metal lid b are provided with a plurality of pores l and m. A nozzle h is provided at the front end of the metal thin tube d, and a spherical rubber f provided with a suction valve g is provided at the rear end via a rubber tube e. By compressing the spherical rubber, a high-speed air flow flows toward the nozzle through the air circulation hole in the metal thin tube d, and the air pressure in the glass bottle decreases, so that the powder gets on the air flow and the plurality of pores Injected from 1 and m toward nozzle. Although not shown, a check valve is provided at a portion where the spherical rubber f is connected to the rubber tube e (see Patent Document 2).

U.S. Pat. No. 2,153,419 British Patent No. 545565

By the way, since the powder spray apparatus of patent document 1 is comprised from the air flow source, the trigger 40, etc., since the magnitude | size is large, a large place to accommodate is required, and it is easy to carry and carry. It cannot be moved.
On the other hand, the manual inhaler of Patent Document 2 is a spherical rubber, a check valve, a metal thin tube d, and a plurality of pores l, m that generate an air flow in order to vigorously inject powder in a glass bottle from a nozzle. Since the powder is mixed in the air flow using the powder, there is a possibility that the powder is clogged in the metal thin tube d, the plurality of pores 1 and m, and the powder cannot be injected. The reason for this clogging will be described in detail later.

Therefore, the present inventor has developed a manual powder spray device 20 having a structure shown in FIG. 7 as a prototype in order to avoid the powder of Patent Document 2 from clogging the nozzle.
FIG. 7 is a longitudinal sectional view of an essential part of the manual powder spray device 20 of the prototype.
As shown in FIG. 7, the manual powder spray device 20 includes a mantle portion 8, a spray portion 5, a conduit port 5 b, an injection port 5 c, a check valve 2, and a pump portion 1. And the spray part 5 is fitted to the head of the mantle part 8, and the check valve 2 is provided between the spray part 5 and the pump part 1 made of an elastic member such as a spherical rubber.

When the pump unit 1 is manually pressed, air having a high flow velocity is injected from the injection port 5c through the check valve pipe 2a, the pipe port 5b, and the air flow pipe 5a. In the middle of the air flow line 5a, a suction line 9a for sucking powder is attached so as to intersect at right angles, and when the air flow flows on the suction line 9a, the powder stored in the container is It is mixed and injected from the injection port 5c.
In order to avoid clogging of the air flow conduit 5a, the air flow conduit 5a has a divergent shape, and the diameter of the conduit port 5b of the air flow conduit 5a is increased. It was tried whether or not the clogging of the air flow conduit 5a can be avoided.

However, it has been found that, when this prototype powder spray device 20 is used many times, the air flow conduit 5a suddenly becomes clogged and powder cannot be ejected from the ejection port 5c. Therefore, as a result of examining the place where the powder is clogged, while gradually tilting from the vicinity of the center of the air flow conduit 5a to the right, gradually to the vicinity of the conduit opening 5b where the suction conduit 9a is vertically attached, It was found that the powder was agglomerated and clogged at the bottom of the pipeline. The diameter of the injection port 5c used in the prototype is 1.1 mm, and the diameter of the pipe on the injection port side that intersects at right angles is 0.7 mm. Therefore, the air flow pipe 5a is very thin. Is.
The powder spray device described in Patent Document 2 also has a possibility that the powder may be clogged because the conduit through which the powder passes communicates with the conduit through which the air flow passes and has the same structure as the prototype. It is estimated to be.

  Therefore, the present invention has been made in view of the above-described problems, and when spraying powder such as cosmetics and pharmaceuticals, the air flow conduit is not clogged and the powder is always sprayed from the spray port. It is an object of the present invention to provide a manual powder spray device that can be stored and a small manual powder spray container that can be stored and carried without taking up space.

The present inventor considered that the cause is that the powder is agglomerated and clogged due to the phenomenon described below.
When the pump unit 1 is pushed by hand, the air flows through the check valve pipe 2a and the air flow pipe 5a, and the air in the powder pipes 9a and 9a 'is sucked into the fast air flow. The internal pressure in 9a, 9a 'becomes a low pressure state, the powder in the powder container 10 rises through the pipe, is mixed into the air flow having a high flow velocity, and is injected from the injection port 5c. However, when the hand is released from the pump unit 1, the flow of the air flow is stopped, and at that moment, the internal pressure in the powder pipes 9a and 9a 'is in a low pressure state. Since air is sucked from 5c and the air flow is reversed, the powder mixed in the air flow is returned from the air flow pipe 5a to the powder pipes 9a and 9a '. Accumulates. If the powder is accumulated for a long period of time, the hydrophilic powder aggregates due to moisture in the air and sticks to the bottom.

If the powder spray device is used many times with the bottom stuck, the powder will continue to accumulate on the agglomerated powder at the bottom of the air flow line 5a each time it is used. If this continues for a long time, it is estimated that the diameter of the air flow conduit 5a becomes small and the air flow conduit 5a is suddenly clogged.
The present inventor considers that the above phenomenon occurs as a cause of clogging, and eagerly researches to prevent powder from accumulating at the bottom of the air flow pipe 5a at the moment when the flow of the air flow stops. As a result of the efforts, the present invention has been completed.

In order to solve the above problem, the manual powder spray device according to the first aspect of the present invention is a manual powder spray device provided with a spray unit that mixes and sprays powders of cosmetics, pharmaceuticals, etc. into a manually generated air flow. The spray section has an air flow conduit through which an air flow passes and a suction conduit for sucking the powder, and the suction conduit communicates with the air flow conduit to provide a communication port. An inner wall space portion having a space is formed above the inner wall of the air flow pipe on the opposite side of the communication port.
Similarly, the manual powder spray device of the invention according to claim 2 is such that the spray part is a cylindrical part having a cylindrical shape, a conical cone part connected to the cylindrical part, and a thin cylindrical shape connected to the head part of the cone part. It consists of a certain small diameter cylindrical part.
The manual powder spray device of the invention according to claim 3 is characterized in that the suction line communicates with the air flow line at right angles.
The manual type powder spray instrument according to the invention of claim 4 is characterized in that the suction line communicates with the air flow line at an acute angle or an obtuse angle.
The manual powder spray device of the invention according to claim 5 is characterized in that the inner wall space portion has a cylindrical shape.
The manual powder spray instrument of the invention according to claim 6 is characterized in that the shape of the suction pipe is divergent toward the injection port.
In the manual powder spray device of the invention according to claim 7, the ratio of the volume of the inner wall space portion to the area of the injection port side inlet of the air flow conduit is preferably in the range of 3.91 to 5.29. Preferably it exists in the range of 4.37-4.83.
The manual powder spray device according to an eighth aspect of the present invention is characterized in that a position where the pump unit communicates with the air flow conduit is arranged in a straight line.
The manual powder spray device of the invention according to claim 9 is characterized in that the position where the pump unit communicates with the air flow conduit is arranged vertically.
The manual powder spray instrument of the invention according to claim 10 is characterized in that the pump part is covered with a cylindrical cover from above.
The manual powder spray container of the invention according to claim 11 is an outer cylinder portion for supporting a manual powder spray device for injecting powder such as cosmetics and pharmaceuticals into an air flow on a powder container for storing powder. Is a manual powder spray container in which the spray part has an air flow conduit for allowing an air flow to pass therethrough and a suction conduit for sucking the powder. A communication port is formed in communication with the air flow conduit, and an inner wall space portion having a space is formed above the inner wall of the air flow conduit on the opposite side of the communication port.
The manual powder spray container according to a twelfth aspect of the invention is characterized in that the inner wall space portion has a cylindrical shape.
The manual powder spray container according to the thirteenth aspect of the present invention is characterized in that the shape of the suction pipe is divergent toward the injection port.
In the manual powder spray container according to the fourteenth aspect of the present invention, the ratio of the volume of the inner wall space to the area of the duct opening of the air flow duct is preferably in the range of 3.91 to 5.29, more preferably It is in the range of 4.37 to 4.83.
The manual powder spray container according to the fifteenth aspect of the present invention is characterized in that a position where a pump unit communicates with the air flow pipe is arranged in a straight line.
The manual powder spray container according to the sixteenth aspect of the present invention is characterized in that a position where a pump unit communicates with the air flow pipe is arranged vertically.

The manual powder spray device of the present invention has an inner wall space portion, so that it is possible to prevent the powder from accumulating in the air flow pipe every time the spray device is used, and the possibility that the powder is aggregated and clogged is eliminated. It was done.
Since the inner wall space of the present invention has a simple configuration formed by an inner wall space having a space above the inner wall of the air flow pipe on the opposite side of the communication port, the processing for forming the configuration is easy. Therefore, it is possible to produce a powder spray device in a short time and at a low cost.
Since the manual powder spray container of the present invention fits the outer cylinder part supporting the manual powder spray device on the powder container, its shape can be reduced in size and can be stored and carried without taking up space. It is. In particular, by covering the pump part from above with a cylindrical cover, it becomes easier to carry and the pump part can be prevented from being damaged.

A manual powder spray device according to the present invention will be described in detail below according to an embodiment with reference to the drawings.
1, 2 and 3 show a first embodiment of the present invention.
FIG. 1 is a perspective view of a manual powder spray container 30 using the manual powder spray device of the present invention. The manual powder spray container 30 has the same structure as the prototype manual powder spray apparatus 20 shown in FIG. 7, and the manual powder spray apparatus 20 of the present invention shown in FIG. Since the structure is the same as that of the manual powder spray device 20 of the prototype shown in FIG. 7, the manual powder spray device of the present invention will be described using the same reference numerals.
The manual powder spray container 30 is fitted with an outer cylinder portion 8 for supporting a manual powder spray apparatus 20 for injecting powder such as cosmetics and pharmaceuticals into an air flow on a powder container for storing powder. Has been.

FIG. 2 is a longitudinal sectional view of a main part showing a first embodiment of the manual powder spray device 20 of the present invention.
Said spray unit 5 is for injection is mixed powder in the air stream, the external shape has a cylindrical portion 5 f is a cylindrical shape, and a conical portion 5d of the conical connected thereto, the head of the conical portion 5d It is comprised from the thin diameter cylindrical part 5e which is a thin cylindrical shape connected to a part.
A check valve 2 is provided on the right side of the spray part 5 to prevent backflow to the pump part 1, and the check valve 2 is fitted with a check valve pipe line 2a, a ball valve 2b and a spring. It is comprised from the spring line 2c which is made. A groove for holding the opening tip of the pump portion 1 made of spherical rubber is provided on the right side of the check valve 2, and a cylindrical portion 2d having a conical tip is formed on the left side thereof. The position where the pump unit 1 communicates with the pipe line 2a of the check valve 2 is linear.

Said spray unit 5, the cylindrical portion 2d of the conical shape of the check valve 2 is fitted in the circular cone portion 5d of the spray unit 5, the check valve tube check valve 2 along its central axis A path 2a, a spring pipe line 2c, an air flow pipe line 5a, and an injection port 5c are formed, and the air flow generated by the pump unit 1 is injected from the injection port 5c through each of the pipe lines. The diameter of the air flow line 5a on the side of the injection port 5c of the spring line 2c gradually increases toward the injection port 5c.
The spray part 5 is formed with an inner wall space part 5X having a suction pipe line 9a 'communicating with the air flow pipe line 5a at a right angle and having a space above the inner wall of the air flow pipe opposite to the communication port. Has been. The inner wall space 5X has a cylindrical shape.
In the first to third embodiments, the angle at which the suction conduit 9a 'communicates with the airflow conduit 5a is described as a right angle. However, the angle is not limited to a right angle, and the angle at which the suction conduit 9a' communicates is an acute angle. Or an obtuse angle may be sufficient.

The outer cylinder portion 8 supports the manual powder spray device 20 and fits into the powder container 10. The lower end portion of the outer cylinder portion 8 is fitted to the shoulder portion 10b of the powder container 10, and the manual powder spray device 20 is inserted into the left and right holes of the upper head portion of the outer cylinder portion 8. It is mated. Further, a hole for inserting and fitting the spray portion 5 is formed in the left-right direction above the support member 6, and a cylindrical member 6b is formed to project downward below the middle portion of the hole. Yes.
The cylindrical member 6b holds a suction tube 9 for sucking powder. And the neck part 10a of the powder container 10 is clamped by the collar part 6a via the gasket 7 under the said supporting member 6. FIG.
A cylindrical part 2d having a conical tip is formed on the left side of the check valve 2, and a check valve pipe line 2a through which air compressed by the pump part 1 passes is cut out along the central axis. A spring pipe 2c having a diameter larger than that of the check valve pipe 2a communicates, and the ball valve 2b and the spring are accommodated in the spring pipe 2c.

FIG. 3 is an enlarged vertical sectional view of the spray unit 5. This figure is of the same shape as the spray unit 5 of the embodiment of FIG. 6, in making hand Doshiki powder spray apparatus, where the either providing a pipe 9a 'in position have viewed overall structure A position that is easy to design may be selected.

The structure of the spray part 5 is demonstrated with reference to FIG.2 and FIG.3.
According to FIG. 3, the cylindrical portion 2d of the front end of the check valve 2 is circular cylindrical shape is fitted in the conical portion 5d of the conical its distal end and the cylindrical portion 5 f of the spray unit 5. Further, according to FIG. 2, the spray portion 5 is narrowed by the diameter of the pipe line being narrowed by the conical cone part 5 d , and the thin diameter pipe line extends along the central axis of the spray part 5. The air flow conduit 5a communicates with the air flow conduit 5a, and the diameter of the air flow conduit 5a gradually widens toward the injection port 5c.
By expanding the diameter in this way, the powder injected from the injection port 5c can be scattered over a wide area.

The powder spray device 20 of the present invention is different from the configuration of the powder spray device 20 of the prototype in that an inner wall space portion 5X having a space is formed on the inner wall of the air flow conduit 5a.
As described above, the spray portion 5 is provided with the powder conduit 9a ′ communicating with the powder conduit 9a of the suction tube 9 for sucking the powder, and the powder conduit 9a ′. Communicates with the air flow duct 5a to form a communication opening, and an inner wall space 5X having a space above the inner wall of the air flow duct 5a on the opposite side of the communication opening is formed.

Here, the reason why the powder is not deposited on the bottom of the air flow pipe 5a at the moment when the air flow having a high flow velocity stops due to the spray part 5 having the inner wall space part 5X will be described.
When the pump unit 1 is pushed by hand, air flows through the air flow line 5a, and the air in the powder lines 9a, 9a 'is sucked into the air flow having a high flow velocity, and the inside of the powder lines 9a, 9a' Since the pressure becomes a low pressure state, the powder in the powder container 10 rises through the pipe line, is mixed into the air flow having a high flow velocity, and is injected from the injection port 5c. At the same time, the air in the inner wall space 5X is sucked into the air flow having a high flow velocity, and the internal pressure of the inner wall space 5X is also in a low pressure state.

  When the hand is released from the pump unit 1, the air flow stops. At that moment, since the internal pressure in the powder pipes 9a and 9a 'and the internal pressure in the inner wall space 5X are in a low pressure state, air is sucked from the injection port 5c, and the air flow is reversed. The reverse air flow passes from the air flow pipe 5a through the pipe opening 5b, flows through the upper wall of the inner wall space 5X to the powder pipes 9a and 9a ', and is mixed into the air flow. The powder is not deposited on the bottom of the air flow conduit 5a.

FIG. 5 is a longitudinal sectional view of an essential part showing a second embodiment of the manual powder spray container 30 of the present invention.
As shown in FIG. 2, in the first embodiment, the pump unit 1 is linearly connected to the check valve 2, and the pump unit 1 is made of spherical rubber. The pump portion 1 is connected to the check valve 2 in a vertical manner, and the pump portion 1 is made of a bellows-like elastic body. Since the other structure is the same as that of the first embodiment, the same reference numerals are used for description.

Moreover, although the connection state and pump part 1 which are different from the structure of 1st Embodiment are demonstrated below, description of other structures is abbreviate | omitted.
The outer cylinder portion 8 supports the manual powder spray device 20 and fits into the powder container 10.
On the right side of the spray part 5, a cylindrical part 5d for fitting a check valve 2 for preventing backflow to the pump part 1 is provided, and the check valve 2 includes a check valve pipe line 2a, A ball valve 2b and a spring 2c are provided. The check valve pipe line 2a is closed on the right side, and a hollow pipe 1 'communicating with the pump unit 1 is inserted vertically above the check valve pipe line 2a to communicate with the check valve pipe line 2a. Yes. The shape of the pump portion 1 is bellows, and a coil spring is provided inside the bellows-like pump portion 1. After the pump portion 1 is pressed and an air flow is generated, the spring is restored. The original shape is restored by force. Reference numeral 11 denotes a cylindrical cover for sucking outside air into the pump unit 1 when the spring is restored.

FIG. 6 is a longitudinal sectional view and a transverse sectional view showing a main part of a third embodiment of the manual powder spray container 30 according to the present invention.
The second embodiment is different from the pump unit 1 having no cover, whereas the third embodiment is different in that the pump unit 1 has a cover. Since the other structure is the same as that of the second embodiment, the same reference numerals are used for description. Therefore, the cover of the pump unit 1 different from the structure of the second embodiment will be described below, but the description of the other structures will be omitted.

  The pump part 1 is slightly smaller than the width of the powder container 10, and a hollow pipe 1 ′ communicated with the pump part 1 is inserted into the check valve 2 at the lower right end of the powder container 10 and communicates with the check valve line 2 a. A support member provided at the lower left end is fixed to the outer tube portion 8. A cylindrical cover 11 is arranged so as to cover the pump portion 1 from above, and a lower end portion of the cylindrical cover 11 also covers a part of the outer cylindrical portion 8. As shown in FIG. 6, a convex member is provided on the inner periphery of the cylindrical cover 11 at a position facing the center, and the convex member slides in a groove provided on the outer periphery of the outer cylindrical portion 8. Therefore, the cylindrical cover 11 can be easily moved up and down without rattling when the cylindrical cover 11 is pressed. A suction valve is provided at the central lower end of the cylindrical cover 11.

  The manual powder spray container 30 of the third embodiment has been described as having a spherical cross-sectional shape, but is not limited to this shape, and may be an elliptical shape, a rectangular shape, or the like. The same applies to the manual powder spray container 30 of the first and second embodiments described above.

FIG. 4 is an enlarged vertical sectional view of an embodiment of the spray section.
With reference to FIG. 4, the Example of the spray part 5 used for Embodiment 1, Embodiment 2, and Embodiment 3 is demonstrated.
The spray part 5 has a length of 24.0 mm, the diameter of the injection port 5c is 1.1 mm, the diameter of the pipe port 5b of the air flow pipe 5a is 0.7 mm, the height of the inner wall space part 5X is 0.55 mm, the diameter Is 2.0 mm.

The area of the pipe opening 5b of the air flow pipe 5a is (0.7 / 2) ² × π = 0.38, and the volume of the inner wall space 5X is (2.0 / 2) ² × π × 0. .55 = 1.73 mm ³ . The ratio of the volume of the inner wall space portion 5X to the area of the conduit port 5b is 4.6. When the ratio is preferably in the range of 3.91 to 5.29, more preferably in the range of 4.37 to 4.83, the powder does not aggregate and clog in the air flow conduit 5a. If the ratio is smaller than 3.91, the flow rate of the backflow airflow from the airflow duct 5a through the duct opening 5b and the flow through the upper wall of the inner wall space 5X is small. There is a possibility of depositing on the bottom of the pipe line 5a. If it is larger than 5.29, the amount of powder to be sprayed is undesirably reduced. That is, since the amount of powder to be injected is proportional to the amount of air sucked by the inner wall space portion 5X and the powder pipes 9a and 9a ′ when the pump portion 1 is pushed by hand, This is because the amount of air in the inner wall space 5X increases.

The perspective view of the manual type powder spray container using the manual type powder spray instrument of this invention. The principal part longitudinal cross-sectional view which shows 1st Embodiment of the manual type powder spray instrument of this invention. The longitudinal cross-sectional enlarged view of a spray part. The longitudinal cross-sectional enlarged view of the Example of a spray part. The principal part longitudinal cross-sectional view which shows 2nd Embodiment of the manual type powder spray container of this invention. The principal part longitudinal cross-sectional view and cross-sectional view which show 3rd Embodiment of the manual type powder spray container of this invention. The principal part longitudinal cross-sectional view of a prototype. The longitudinal cross-sectional view of the manual inhaler of patent document 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pump part 2 Check valve 2a Check valve line 2b Ball valve 2c Spring line 2d Cylindrical part 5 Spray part 5a Air flow line 5b Pipe line port 5X Inner wall space part 6 Support member 7 Gasket 8 Outer part 9 Powder pipe 9a Powder line 11 Tubular cover 20 Manual powder spray device 30 Manual powder spray container

Claims (16)

A manual powder spray device comprising a spray unit for spraying cosmetic and pharmaceutical powder mixed in a manually generated air flow,
The spray unit has an air flow line through which an air flow passes and a suction line for sucking the powder, and the suction line communicates with the air flow line to form a communication port, A manual powder spray instrument characterized in that an inner wall space portion having a space is formed above the inner wall of the air flow pipe on the opposite side of the communication port.   The said spray part consists of the cylindrical part which is a cylindrical shape, the cone-shaped cone part connected to it, and the thin diameter cylindrical part which is a thin column shape connected to the head of the cone part. Manual powder spray equipment.   2. The manual powder spray device according to claim 1, wherein the suction line communicates with the air flow line at a right angle.   2. The manual powder spray device according to claim 1, wherein the suction line communicates with the air flow line at an acute angle or an obtuse angle.   The manual powder spray device according to claim 1, wherein the inner wall space portion has a cylindrical shape.   The manual-type powder spray device according to claim 1, wherein the shape of the air flow conduit is divergent toward the injection port. 4. The manual powder spray device according to claim 3, wherein a ratio of a volume of the inner wall space portion to an area of a duct opening of the air flow duct is in a range of 3.91 to 5.29 .   The manual powder spray device according to claim 1, wherein a position where the pump unit communicates with the air flow conduit is linear.   The manual powder spray device according to claim 1, wherein a position where the pump unit communicates with the air flow conduit is vertical.   The manual powder spray device according to claim 8, wherein the pump part is covered with a cylindrical cover from above. A manual powder spray that is fitted with an outer tube part that supports a manual powder spray device that has a spray part that mixes and sprays cosmetic and pharmaceutical powders in an air stream on a powder container that contains powder. A container,
The spray unit has an air flow line through which an air flow passes and a suction line for sucking the powder, and the suction line communicates with the air flow line to form a communication port, A manual powder spray container, characterized in that an inner wall space portion having a space is formed above the inner wall of the air flow pipe on the opposite side of the communication port.   The manual powder spray container according to claim 11, wherein the inner wall space has a cylindrical shape.   13. The manual powder spray container according to claim 11 or 12, wherein the shape of the air flow pipe is divergent toward the injection port. The manual powder spray container according to claim 11, wherein a ratio of a volume of the inner wall space part to an area of a pipe port opening of the air flow pipe line is in a range of 3.91 to 5.29 .   The manual powder spray container according to claim 11, wherein a position where the pump unit communicates with the air flow conduit is linear.   The manual powder spray container according to claim 11, wherein a position where the pump unit communicates with the air flow pipe is arranged vertically.

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