JP2010018316A - Fully jetting mechanism for aerosol container, and aerosol product with mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a content to efficiently enter a gap or the oike in a room or the like by reducing the particle diameter of the content to be fully jetted, and to prevent the content from contaminating its user's face. <P>SOLUTION: An injection pipe 4 is roughly linear when in the rest mode. A valve operation portion opens for a container content to flow into the pipe 4 in the illustrated operation mode where an actuator 10 is fitted to a cover body 9. With the flow of the content, the flexible pipe 4 is deformed and continuously rotated while being guided by a mortar-shaped surface portion 6d for injecting the content in the form of fine particles from the end of the pipe into a wide space. In order to prevent the content from contaminating its user's face at the beginning of the operation mode, the linear direction of the pipe 4 (the axial direction of a cylinder portion 6a) during the rest mode is shifted from the perpendicular direction B. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a total amount injection mechanism used for aerosol products, in particular, a flexible cylindrical output portion that acts as an injection portion for contents, and a mortar cone portion that surrounds the cylindrical output portion, In an operation mode in which contents are injected, the present invention relates to a full-quantity injection mechanism in which the cylindrical output portion rotates along the inner surface of the mortar cone portion.

  In this specification, the term “content” is used to indicate an object that is injected into the external space by the action of the propellant inside the container when the valve is opened by operating the actuator. That is, a propellant of various gases and contents such as an insecticide which are in a pressurized state by the action of the propellant are accommodated inside the container.

  For example, it is desirable that the insecticide sprayed from the container output section spreads widely in the room, such as when an insecticide is sprayed from an aerosol container to exterminate cockroaches in the room, and the present invention meets such a demand. is there.

  Note that the present invention is not limited to the use of insecticides, but is applied to the entire amount injection of various contents such as bactericides, disinfectants, deodorants, fragrances, cleaning agents, cleaning agents, antistatic agents and antifungal agents. Is possible.

  2. Description of the Related Art Conventionally, regarding an aerosol product full-quantity injection mechanism, a mechanism has been proposed for widening the injection range and for uniformly injecting contents into every corner of the room (see Patent Document 1).

In the case of this full quantity injection mechanism,
As a content injection unit to the external space, a central nozzle and surrounding nozzles around the central nozzle are provided,
-Set the opening area of the central nozzle, the ratio of the opening area of the central nozzle and the total opening area of each surrounding nozzle to a predetermined range,
It is a structural form such as.
JP 2002-204990 A

  The above-described full-quantity injection mechanism including the central nozzle and the peripheral nozzle has the convenience that the contents of the aerosol product can be sprayed over a wide range.

  On the other hand, the whole quantity injection mechanism of the present invention has a content output portion made of a flexible cylindrical member provided in a linear manner inside the mortar-shaped cone portion, and the so-called passage area of the aerosol product is provided with a so-called cylindrical shape. It is noted that when the contents continuously flow in, the cylindrical member continues to rotate while being guided by the inner surface of the mortar cone portion.

  That is, instead of fixedly providing a plurality of contents output portions of the aerosol product full quantity injection mechanism, the contents are discharged from the output port while rotating the flexible cylindrical member along the inner surface of the scalloped cone portion. A new full-volume injection mechanism that injects over a wide range is provided to improve the full-volume injection technology for aerosol products and to further widen the space in which the contents are injected. .

  In addition, a user who has set the cylindrical content output unit in the stationary mode in an oblique manner deviated from the vertical direction and has performed the operation mode setting operation when the cylindrical member starts rotating, etc. The purpose of this is to improve the safety for the user during the full-quantity injection operation.

  In addition, as clearly shown in the test results described later, the particle diameter of the contents is made finer than in the case of the conventional fixed injection by the action of the rotary injection so that the contents can efficiently reach every corner in the room. The purpose of this is to improve the efficacy of the injected contents.

The present invention solves the above problems as follows.
(1) An operation unit (for example, described later) that moves a stem (for example, later-described stem 3) to an operation mode position, which exhibits a valve action regarding an injection operation of contents stored in an aerosol container (for example, a container body 1 to be described later). An actuator 10);
An operation holding unit (for example, a ceiling step 9c described later) for locking and holding the operation unit in the operation mode setting operation state;
A flexible cylindrical output part (for example, a pipe 4 to be described later) through which the contents attached to the downstream side of the stem and injected into the external space pass;
A bowl-shaped cone part (for example, a bowl-shaped cone described later) that surrounds the cylindrical output part in a separated state and acts as a guide surface when continuously rotating with the cylindrical output part deformed in the operation mode. Surface portion 6d),
A full-volume injection mechanism for aerosol containers in the form of
(2) In (1) above,
As the cylindrical output part,
In the operation mode setting operation when used by being attached to an aerosol container, an oblique state shifted from the vertical direction is used.
(3) In (1) above,
As the guide surface,
It is composed of a frustoconical inner peripheral surface, and the one in which the spread angle in the cylindrical output portion in the stationary mode is set in the range of 30 degrees to 90 degrees is used.

  The aerosol container full-volume injection mechanism having such a configuration and an aerosol product including the full-volume injection mechanism are the objects of the present invention.

  Since the present invention uses a full-quantity injection mechanism that injects the contents over a wide range from its output port while rotating the flexible cylindrical member in the form along the scalloped cone portion, the aerosol product The new full-quantity injection technology can be disclosed, and the space in which the contents are injected can be further expanded.

  In addition, the linear shape in the stationary mode of the content output portion made of the cylindrical member is set in a mode shifted from the vertical direction, and the content is used to set the operation mode at the start of rotation of the cylindrical member. Therefore, it is possible to improve the safety for the user accompanying the full-quantity injection operation.

  In addition, the particle size of the contents accompanying rotary injection is made finer than in the case of conventional fixed injection, so that the contents can reach every corner of the room efficiently, improving the effectiveness of the injection contents Can be achieved.

  The best mode for carrying out the present invention will be described with reference to FIGS.

  As described above, the present invention is not intended only for insecticide applications, but in the following description, an aerosol product containing an insecticide as a content will be specifically described.

here,
FIG. 1 shows a stationary mode in which a pipe cap for a content injection pipe (cylindrical output portion) and a top cap for the entire container are attached,
FIG. 2 shows an operation mode (full injection mode) in which the actuator (operation unit) is pressed and held on the cover body after the top cap and the pipe cap are removed,
FIG. 3 shows a schematic diagram of a test of the full injection mechanism of the present invention for cockroaches.

  In addition, it has shown that the component (for example, annular concave part 1a) of the following reference numbers with an alphabet is a part of component (for example, container main body 1) of the numerical part of the said reference number in principle.

1 and 2,
1 is an aerosol product container body containing the contents and propellant,
1a is an annular concave portion on the outside of the opening that is strongly engaged with a bulging area 9b of the cover body 9 described later,
2 is a mounting cap attached to the opening of the container body 1;
3 is a stem provided in a housing (not shown) integral with the mounting cap 2 and having a well-known injection valve and a cylindrical passage portion;
4 is a deformable flexible pipe provided on the downstream side of the stem 3 and having a content injection passage and an injection port to the external space;
5 is a cylindrical weight attached to the tip of the pipe 4;
6 is a cone member having a function of guiding the rotation of the pipe 4;
6a is a cylindrical portion on the base side (stem side),
6b is an annular recess formed on the tip side of the cylindrical portion,
6c is an annular concave portion that is formed in a plurality on the base side inner peripheral surface of the cylindrical portion and strongly fits with an actuator 10 (annular convex portion 10c) described later
6d is a mortar-shaped surface portion (= conical frustum-shaped inner peripheral surface) that acts as a rotational motion guide surface of the pipe 4;
7 is an upper bush for fixing a weight, which is interposed between the outer peripheral surface on the tip end side of the pipe 4 and the inner peripheral surface of the weight 5;
8 is a detachable pipe cap attached to the annular recess 6b of the cone member 6;
9 is a cover body that remains attached to the container body 1 and is not removed during the operation mode setting operation;
9a is a substantially annular hanging portion formed on the ceiling surface of the cover body,
9b is a bulging area formed on the inner peripheral surface at the lower end side of the hanging part and strongly engaging with the annular concave portion 1a of the container body 1 (below the outer end portion of the mounting cap 2);
9c is formed between the rib-like portions on the inner peripheral surface side of the hanging portion 9a, and a ceiling surface step portion to which a convex holding portion 10e of the actuator 10 described later is engaged in accordance with an operation mode setting operation,
9d is a thin-walled portion that exhibits a hinge action,
10 is a pivotable actuator (operating portion) formed in a hinged manner continuous from the thin portion 9d of the cover body 9,
10a is a cylindrical hanging portion that engages with the upper end portion of the stem 3 in accordance with the operation mode setting operation of the actuator and moves the stem to the operation mode position;
10b is a cylindrical upright portion that is formed in a manner continuous from the cylindrical hanging portion and holds the base side of the pipe 4,
10c is an annular convex portion that is formed in plural on the outer peripheral surface of the cylindrical upright portion and is strongly fitted to the cone member 6,
10d is an operation surface in an inclined manner pressed by the user,
10e is a convex holding portion for setting the operation mode, which is formed on the outer peripheral surface of the hanging portion extending below the operation surface and engages with the concave portion 9c of the cover body 9 by the pressing and rotating operation of the actuator.
11 is a lower bush for fixing a pipe interposed between the outer peripheral surface of the base side of the pipe 4 and the inner peripheral surface of the cylindrical upright portion 10b,
12 is a top cap that can be attached to the outer peripheral surface of the cover body 9 in a detachable manner;
A is the cone angle of the mortar-shaped surface portion 6d (see FIG. 1),
B is a vertical direction, that is, a direction perpendicular to a floor surface on which an aerosol container for full-volume injection is normally placed (see FIG. 2),
C is an inclination angle of the cylindrical portion 6a in the operation mode with respect to the vertical direction B (see FIG. 2),
L is the length from the actuator side fixed end portion of the pipe 4 (see FIG. 1),
Respectively.

Here, the container main body 1 and the mounting cap 2 are made of metal such as tin or aluminum.
The stem 3, pipe 4, weight 5, cone member 6, upper bush 7, pipe cap 8, cover body 9, actuator 10, lower bush 11 and top cap 12 are, for example, polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate These are made of plastic.

  In the stationary mode of FIG. 1, the top cap 12 and the pipe cap 8 are attached to the cover body 9 and the cone member 6, respectively. The actuator 10 is in an initial state position as shown in the drawing, that is, in a so-called flat surface state where the adjacent portion of the thin portion 9d continues from the upper surface of the cover body at the same height.

  At this time, the stem 3 is biased upward by an elastic action such as a well-known coil spring (not shown), the injection valve of the stem is closed, and the contents stored in the container body 1 flow into the pipe 4. Never do.

  When setting the operation mode for full injection, as shown in FIG. 2, the top cap 12 and the pipe cap 8 are removed from the cover body 9 and the cone member 6 respectively, and then the operation surface 10d of the actuator 10 is moved to the foot or hand. Or the like, and the convex holding portion 10e of the actuator is engaged with the concave portion 9c of the cover body 9.

  As the operating surface 10d is pressed downward, the actuator 10 rotates in the clockwise direction in the drawing with the boundary (the thin portion 9d) with the cover body 9 as an axis.

  During this rotation, the cylindrical hanging portion 10a of the actuator 10 engages with the upper end portion of the stem 3 and moves the stem downward.

  As a result of the movement of the stem 10, for example, a well-known injection valve composed of a stem gasket and a stem hole is opened, and the contents of the container body 1 flow into the pipe 4 through the stem 3.

  Here, the flexible pipe 4 into which the contents have flowed continuously rotates while being guided by the mortar-shaped surface portion 6d of the cone member 6 as shown in FIG.

  Due to the continuous rotation of the pipe 4, the contents are jetted from a front end opening of the pipe 4 over a wide range of the external space.

  Hereinafter, the efficacy test for cockroaches when using an aerosol product equipped with a full injection mechanism (rotation type) of the present invention and a conventional full injection mechanism (fixed type) will be described.

  The test conditions will be described with reference to FIG. 3. The test chamber 13 is a sealed space having a length of 3.6 m, a width of 3.6 m, and a height of 2.7 m, and the aerosol product 16 to be tested is located at the center of the floor surface. In addition, two slit boxes 14 were placed at the corners on the floor diagonal.

  The slit box 14 is a cube having a side of 300 mm, and two slits 14a (width 10 mm, height 100 mm) are formed at the positions shown in FIG.

  Two cups 15 (upper bottom diameter 130 mm, lower bottom diameter 100 mm, height 100 mm) are placed on the bottom surface of the slit box 14.

  Each cup 15 contained 10 resistant cockroaches, for a total of 40 in the test chamber 13.

  In this test, the aerosol product 16 contains 1.25 g of the insecticide (cyphenothrin 0.25 g, methoxadiazone 1.0 g) dissolved in ethanol in both the full injection mechanism of the present invention and the conventional full injection mechanism. The stock solution made up to 30 ml was filled into the container body with 70 ml of dimethyl ether as a propellant.

  The product name “Earth Red Non-Smoke Fog Type” was used as the specification for the conventional full-quantity injection mechanism.

The specifications relating to the full quantity injection mechanism of the present invention are as follows.
-Length L from the actuator 4 fixed end portion of the pipe 4 (see FIG. 1); 55 mm
-Outer diameter of pipe 4: 2 mm, same inner diameter (= diameter of pipe passage portion): 1 mm
・ Rotation speed of pipe 4: 1800 rpm
・ Cylindrical weight 5; 0.279g
Cone angle A of the mortar-shaped surface portion 6d (see FIG. 1); 30 °, 45 °, 60 °, 75 °, 90 °. The inclination angle C of the cylindrical portion 6a in the operation mode (see FIG. 2); 10 °. 20 degrees, 25 degrees, 35 degrees

  The above test conditions were adjusted, and in the test chamber 13, the aerosol product 16 was jetted in a total amount of 30 seconds to 35 seconds, and then left for 1 hour.

Meanwhile, the number of cockroaches knocked down over time was counted to obtain “KT50” (time from the start of exposure until half of the cockroaches were knocked down: minutes). In addition, the number of lethals 24 hours after the start of exposure was observed to determine the “24-h lethality”. Furthermore, the jet particle diameter corresponding to the cone angle A was obtained with a laser light diffraction particle size measuring device.
The test was repeated three times, and the average value of each was used as the result.

  Tables 1 to 3 below are test result data for the full injection mechanism of the present invention and the conventional full injection mechanism.

Here, Table 1 shows the particle diameter (μm) of the contents injected from each of the rotating pipe of the present invention (each cone angle A of 30, 45, 60, 75, 90) and the conventional fixed pipe. ing.

Table 2 shows “KT50: min” and “24h lethality rate:%” for the German cockroach when these rotating pipes and fixed pipes are used.

Table 3 shows that in the full-quantity injection mechanism according to each combination of the cone angle A (45 degrees, 60 degrees) and the inclination angle C (10 degrees, 20 degrees, 25 degrees, 30 degrees), the subject faces the face at the start of the operation mode. This indicates the degree to which the contents are exposed.

  As shown in Table 1, in the full-quantity injection mechanism using the rotating pipe of the present invention, the particle diameter of the contents is finer than that of a conventional fixed pipe. This corresponds to any case where the cone angle A of the mortar-shaped surface portion 6d is 30 to 90.

  As shown in Table 2, the “KT50” and “24h lethality” for the cockroach of the cup 15 are significantly larger than the conventional fixed pipe full injection mechanism at all cone angles A of 30 to 90 degrees. Has improved.

  This is presumably because the particle diameter of the contents becomes finer and the amount flowing into the slit increases. This indicates that the insecticidal effect on German cockroaches entering the gaps such as in the room is remarkable.

  In particular, when the cone angle A is set to “45 ° to 90 °”, “KT50” is shortened to at least about 1/3 of the conventional ratio, and “24h lethality” is at least about 35%. The effect of increasing is obtained.

The inclination angle C when this effect is obtained is, for example,
・ 20 degrees, 25 degrees (when cone angle A is 45 degrees)
・ 25 degrees, 35 degrees (when cone angle A is 60 degrees)
It is.

  1 and FIG. 2, the cone angle A is 45 degrees and the inclination angle C is 25 degrees.

  In addition, as shown in Table 3, in order to prevent exposure of the operation mode setter, the inclination angle C of 25 degrees and 35 degrees is suitable for the cone angle A of 45 degrees, and the cone angle of 60 degrees is also the same. A tilt angle C of 35 degrees is suitable for A.

  A preferable range of the inclination angle C in terms of prevention of exposure is 20 degrees or more when the cone angle A is 45 degrees, and 25 degrees or more when the cone angle A is 60 degrees.

  The basic feature of the full quantity injection mechanism of the present invention is that the content injection pipe 4 continuously rotates along the scalloped surface portion 6d of the cone member 6 in the operation mode (the content passes through the internal space). Is used to inject the contents of fine particle size into a wide space.

  Therefore, the cone angle A and the inclination angle C may be values within a range in which the continuous rotation of the pipe 4 is ensured, and are not limited to the specific angles described above. Any intermediate value between the specific angles or the minimum and maximum outside values of the specific angle may be used.

Moreover, it is a specification related to the total amount injection mechanism of the present invention exemplified above,
-Length L from the fixed end of the pipe 4 on the actuator side (see Fig. 1)
-Outer diameter and inner diameter of the pipe 4 (= diameter of the pipe passage portion)
Similarly, the rotation speed of the pipe 4 and the weight of the cylindrical weight 5 can take any value within a range in which continuous rotation of the pipe 4 is ensured.

In addition, the range of the preferable value of each of these elements is
-Length L of the pipe 4; 30 to 100 mm, preferably 40 to 60 mm
The outer diameter of the pipe 4: 1 to 5 mm, preferably 1.5 to 3 mm
-Inner diameter of pipe 4; 0.5-4 mm, preferably 0.5-2.5 mm
-Rotation speed of the pipe 4; 500 to 3000 rpm, preferably 1000 to 2000 rpm
-Weight of the cylindrical weight 5; 0.1-1.5 g, preferably 0.2-1 g
It is.

  In the above embodiment, a so-called tilting type actuator (operation unit) is used, but instead of this, it is a separate body from the cover body 9, and it is lowered while resisting an upward elastic biasing force by a pressing operation thereof. A push-down type actuator (operation unit) that moves may be used.

  As a propellant for an aerosol product, for example, a compressed gas such as carbon dioxide, nitrogen gas, compressed air, oxygen gas, rare gas, or a mixed gas thereof, or a liquefied gas such as liquefied petroleum gas, dimethyl ether, or fluorocarbon is used.

It is explanatory drawing which shows the stationary mode which attached the top cap with respect to the cap of the pipe for content injection, and the whole container. It is explanatory drawing which shows the operation mode (full-quantity injection mode) which made the cover body press-hold after removing a top cap and a pipe cap. It is explanatory drawing which shows the schematic of the test of the full quantity injection mechanism of this invention targeting at cockroaches.

Explanation of symbols

1: Aerosol container body 1a: annular concave portion 2: mounting cap 3: stem 4: pipe 5: cylindrical weight 6: cone member 6a: stem side cylindrical portion 6b: annular concave portion 6c: annular concave portion 6d: A bowl-shaped surface part (a frustoconical inner peripheral surface)
7: upper bush 8: pipe cap 9: cover body 9a: substantially annular hanging portion 9b: bulge area 9c: ceiling step 9d: thin portion 10: actuator (operation unit)
10a: cylindrical hanging part 10b: cylindrical upright part 10c: ring convex part 10d: operation surface 10e: convex holding part 11: lower bush 12: top cap 13: test chamber 14: slit box 14a: longitudinal slit 15: Cup 16: Aerosol product A: Cone angle of mortar surface portion 6d (see FIG. 1)
B: Vertical direction (see Fig. 2)
C: Angle of inclination of the cylindrical portion 6a from the vertical direction B in the operation mode (see FIG. 2)
L: Length from the actuator 4 fixed end portion of the pipe 4 (see FIG. 1)

Claims (4)

An operation unit that moves a stem that exhibits a valve action on the injection operation of the contents stored in the aerosol container to an operation mode position;
An operation holding unit for locking and holding the operation unit in the operation mode setting operation state;
A flexible cylindrical output part that is attached to the downstream side of the stem and through which the contents injected into the external space pass;
Surrounding the cylindrical output portion in a separated state, and in the operation mode, a mortar cone portion that acts as a guide surface when the cylindrical output portion continuously rotates while deforming,
A full-volume injection mechanism for aerosol containers, comprising: The cylindrical output part is
At the time of operation mode setting operation when attached to the aerosol container and used, it becomes an oblique state shifted from the vertical direction.
The full-volume injection mechanism for an aerosol container according to claim 1. The guide surface is
It consists of a frustoconical inner peripheral surface, and the spread angle on both sides of the cylindrical output part in the stationary mode is set in the range of 30 degrees to 90 degrees.
The full-volume injection mechanism for an aerosol container according to claim 1. Comprising the aerosol container injection mechanism according to any one of claims 1 to 3, and containing a propellant and contents;
Aerosol product characterized by that.

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