JP2004041979A - Delay spraying mechanism and aerosol type product using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly carry out delay operation from the moment of operating a delay spraying mechanism to the moment of spraying and simplify the shape of each constituent part for cost reduction. <P>SOLUTION: A hole part 15d for discharging air is formed in a valve member 15 moved upward and opening a hole part 11d for passing a content in the operation mode and a port 10e for communicating with the outer space 23 is formed in a cover 10 so as to communicate the upper side space 15b and the lower side space 15b with the outer space. When an operation member 11 is turned, a stem 20 is pushed down and the valve member 15 is pushed up by the pressure of the content. The air corresponding to the diminished volume of the upper side space 15b is smoothly discharged in stratified current state while passing through the hole part 15d-the lower side space 15c-the port 10e for communicating with the outer space or through a gap 21a, so that the valve member 15 is moved smoothly upward. Since the lower side space 15c is not needed to be a close space, the shape of each component is simple. Another delay spraying mechanism in which air corresponding to the volume alteration in the upper side space is discharged to the outer space through a groove part formed in an operation member is also disclosed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a delay injection mechanism, in particular, to make a delay operation from injection operation to injection of contents smooth, and to simplify the shape of each component to reduce cost. To a delayed injection mechanism.
[0002]
[Prior art]
FIG. 5 is an explanatory view showing the injection process of an aerosol container provided with a conventional delayed injection mechanism.
[0003]
In FIG. 5, reference numeral 3 denotes a delay injection mechanism, reference numeral 30 denotes a cover body, reference numeral 30a denotes a step portion of the cover body, reference numeral 31 denotes a push button for an injection operation, reference numeral 31a denotes a content injection passage, reference numeral 32 denotes an injection port, and reference numeral 33 denotes a pressure of the content. The piston 33a moves upward upon receipt of the piston, 33a is a wall portion of the piston, 33b is a hole for ejecting contents formed in the piston in advance, and 33c is a hole for ejecting contents between the piston and the cylinder 34. The gap, 33d is an annular outer bottom surface of the piston, 34 is a cylinder which moves down together with the piston 33 to press the stem, 34a is a lower space surrounded by the cylinder and the piston 33, and 34b is a cover. A claw portion for engaging with the step portion 30a of the body 30, 34c is an annular inner bottom surface portion of the cylinder, 35 is a cylinder cover that forms a closed space with the cylinder 34, 35a is the cylinder cover. The upper space portion in a closed state surrounded by the piston 33, 36 is a pressure adjusting member for sucking the air in the upper space portion 35a into the lower space portion 34a, 36a is a fine hole, 37 is a temporary storage portion for contents, 38 indicates a stem, 39 indicates a mountain cap, 40 indicates a container, and 41 indicates an external space.
[0004]
As shown in FIG. 5, the delay injection mechanism 3
Forming a closed space by the cylinder 34 and the cylinder cover 35,
Forming between the piston 33 and the cylinder 34 a lower space portion 34a that does not communicate with the external space;
Forming an upper space portion 35a not communicating with the external space between the piston 33 and the cylinder cover 35;
Due to the configuration, each member has a complicated shape and has a complicated structure.
[0005]
When the push button 31 is pressed in the stationary mode (not shown: the outer bottom surface 33d of the piston 33 is in contact with the inner bottom surface 34c of the cylinder 34), the piston 33, the pressure adjusting member 36, the cylinder 34, and the cylinder cover 35 are pressed. As a result, the claw portion 34b of the cylinder 34 is locked to the step portion 30a of the cover body 30 and the stem 38 is pressed.
[0006]
By this pressing operation, the valve (not shown) of the stem 38 opens, and the contents of the container 40 pass through the stem 38 and flow into the contents temporary storage section 37 to push up the wall 33 a of the piston 33. At this time, the pressure adjusting member 36 and the push button 31 fitted to the piston also move upward.
[0007]
Due to the upward movement of the piston 33, the lower space portion 34a is in a depressurized state, so that the air in the upper space portion 35a is sucked from the fine holes 36a of the pressure adjusting member 36 and moves to the lower space portion 34a.
[0008]
Since the lower space part 34a is a closed space area, the sucked air hits the cylinder 34 and is in a turbulent state.
[0009]
When the piston 33 is further raised from the position shown in the figure and a gap 33c is formed between the piston and the cylinder 34, the content is injected through the gap-hole 33b-the content injection passage 31a. It is injected from the mouth 32 into the external space 41.
[0010]
The start of the injection of the contents is delayed by the time from when the push button 31 is pressed until the gap 33c is formed.
[0011]
[Problems to be solved by the invention]
As described above, when the piston moves upward in the conventional delay injection mechanism, the air in the upper space of the piston is sucked into the lower space.
[0012]
As described above, the sucked air has no escape area and is in a turbulent state in the lower space. And part of it goes to the direction of the upper space, so it becomes a resistance of the suction action of the air from the upper space, and as a result, the operation of the piston rattles, and in the worst case, it moves to the content injection start position. There was a problem that the piston could stop before reaching.
[0013]
In addition, the pistons and cylinders that form the closed space divided into the upper space and the lower space are complicated and have such a structure that they enter each other, and it takes time to manufacture and assemble parts. As a result, there has been a problem that the cost of the entire delay injection mechanism is increased.
[0014]
Therefore, in the present invention, the delay operation gas in a space region in which the volume decreases according to the amount of movement of the valve member that starts moving to the injection start position based on the user's injection operation is discharged to the external space, An object is to operate a valve member smoothly.
[0015]
It is another object of the present invention to simplify the shape and internal structure of each member of the delay injection mechanism, and to save time for manufacturing and assembling parts.
[0016]
[Means for Solving the Problems]
The present invention solves this problem as follows.
(1) In a delay injection mechanism (for example, delay injection mechanisms 1 and 2 described later) in which the contents of a container (for example, a container 22 described later) are injected into an external space with a delay from the time of the injection operation, an output unit for delayed injection (E.g., holes 11d and 12e described later) are formed, and an ejection output member (e.g., operation members 11 and 12 described later) that moves by the ejection operation to set the operation mode of the container, and a valve function for the output unit. A valve member (e.g., valve members 15 and 17 and a valve action unit 18 to be described later) that is held and moved by the pressure of the contents to shift the output unit from the non-operating state to the operating state. A space region (for example, upper space portions 15b, 17b, which will be described later) in which the volume decreases with the movement, and a gas for delay operation in the space region, in response to the change in the volume, during the movement of the valve member. Outside sky And a gas discharge portion for discharging (e.g. below the air discharge hole 15d, the lower space part 15c, 17c, the external space communicating opening 10e, the groove 12d) to.
(2) In the above (1), as the gas discharge portion, an exhaust hole (for example, an air discharge hole 15d described later) formed in the valve member, and the valve member and the container cover body (for example, described later) An external space communication region (for example, a lower space portion 15c to be described later) constituted by the cover body 10) and following the exhaust hole portion is used.
(3) In the above (2), a resistance member (for example, a felt 16 described later) for the gas discharging operation is provided in a portion communicating with the exhaust hole.
(4) In the above (1), the gas discharge portion is formed of a sheath portion (for example, a columnar portion 12c to be described later) formed with a content passage hole (for example, a hole portion 12e to be described later) as the output portion. The object of contact between the ejection output member and a container cover body (for example, a cover body 10 described later) that comes into contact with the outer peripheral surface of the sheath-shaped part and configures the space area (for example, an upper space section 17b described later). A groove (for example, a groove 12d described later) formed on at least one of the portions is used.
[0017]
According to the present invention, as described in the above (1), the gas for delay operation in the space region in which the volume is reduced by the movement of the valve member based on the injection operation is discharged into the external space in a so-called laminar flow state, Thus, the valve member is smoothly moved to the position for ejecting the contents, and the closed space portion for storing the gas is omitted.
[0018]
Further, as described in (2) above, the exhaust hole formed in the valve member and the external space communication area following the exhaust hole are used as a delay operation gas discharge portion, and as the valve member moves during the delay operation. In other words, excess internal gas is efficiently discharged to the external space.
[0019]
Further, as described in (3) above, a resistance member for discharging the delay operation gas is provided in a portion communicating with the exhaust hole, thereby increasing the delay time, and further, delaying according to various resistance members. The time can be set selectively.
[0020]
Further, as described in (4) above, the groove-shaped portion formed in the contact target portion (= a portion different from the valve member) between the injection output member (sheath-shaped portion) and the container cover body is formed by the gas for delay operation. It is used as a discharge part, that is, an exhaust hole is formed in a valve member, which is a movable member, to surely prevent the balance from being lost, thereby making the movement of the valve member during the delay operation more smooth. ing.
[0021]
The present invention is directed to a delay injection mechanism having the above characteristics, and also to an aerosol-type product provided with the delay injection mechanism.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a stationary mode of a delay injection mechanism in which an air discharge hole is formed in a valve member 15;
FIG. 2 shows the initial stage of the operation mode of the delay injection mechanism of FIG. 1 (hole 11d: closed state),
FIG. 3 shows an injection stage subsequent to FIG. 2 (hole 11d: open state),
FIG. 4 shows the initial stage of the operation mode of the delay injection mechanism in which the air discharging groove is formed in the column 12c for pressing the stem (hole 12e: closed state),
Are respectively shown.
[0023]
In these figures,
1 is a delay injection mechanism (1),
2 is a delayed injection mechanism (part 2),
Reference numeral 10 denotes a cover body, 10a is a stationary mode, and an upper concave portion for locking projections 11b, 12b of operation members 11, 12 described later. 10b is an operation mode, and a projection 11b of operation members 11, 12 described later is operated. The lower concave portion to be locked, 10c is a rail portion for guiding the projecting portions 11b, 12b from the upper concave portion 10a to the lower concave portion 10b, 10d is a small-diameter portion that contacts the operating member 11, and 10e is an external space communication port. , 10f are recesses formed on the inner peripheral surface of the cover body 10,
Reference numeral 11 denotes an operation member for jetting operation, 11a denotes a rotating operation portion, 11b denotes a projecting portion, 11c denotes a columnar portion for pushing the stem, 11d denotes a hole for passing contents, 11e denotes a passage for jetting contents,
Reference numeral 12 denotes an operating member having an air discharging groove 12d formed therein, 12a denotes a rotary operating portion, 12b denotes a protruding portion, 12c denotes a columnar portion for pushing a stem, 12d denotes a knurled groove for air discharging, and 12e denotes a groove. A hole for passing the contents, 12f a passage for injecting the contents, 12g a gap between the cover body 10 and the operating member 12,
13 is an injection port for the contents,
Reference numeral 14 denotes a cylindrical intermediate passage member that forms a content temporary storage portion 19 described later, 14a denotes a content passage, 14b denotes a groove, 14c denotes a gap for preventing malfunction of the stem 20,
Reference numeral 15 denotes a valve member having an air discharge port 15d, 15a denotes an edge, 15b denotes an upper space surrounded by the valve member and the cover body 10, and 15c denotes a valve member, an intermediate passage member 14, and the cover body 10. A lower space portion which is enclosed and communicates with the external space, 15d is a hole portion for discharging air for delay operation of the upper space portion,
16 is a felt for adjusting air discharge,
17 is a valve member having no air outlet, 17a is an edge portion, 17b is an upper space portion communicating with an external space, 17c is a lower space portion,
Numeral 18 denotes a valve action portion which is fitted to the valve members 15 and 17 and is in close contact with the columnar portions 11c and 12c of the operation members 11 and 12.
19 is a temporary storage unit for the contents specified by the intermediate passage member 14 and the valve member 15, etc.
20 is a stem,
21 is a mountain cap, 21a is a gap between the mountain cap 21 and the cover body 10,
22 is a container,
23 is an external space,
Are respectively shown.
[0024]
The delay injection mechanism 1
The cover body 10 fixed to the mountain cap 21a,
An operation member 11, which is moved down by a rotation operation,
An intermediate passage member 14, which presses the stem 20 by the downward movement of the operation member 11,
A valve member 15, which moves upward by the pressure of the contents,
A valve action portion 18 that sets the hole 11d of the operation member 11 to an open state in conjunction with the valve member 15,
It is composed of
[0025]
The inside of the cover body 10 of the delay injection mechanism 1
A content temporary storage unit 19 surrounded by the valve member 15, the intermediate passage member 14, and the like;
An upper space portion 15b that communicates with the external space 23 via the hole portion 15d of the valve member 15, the lower space portion 15c, the external space communication port 10e of the cover body 10, and the like;
A lower space portion 15c that communicates with the external space 23 via an external space communication port 10e of the cover body 10 and a gap 21a between the cover body 10 and the mountain cap 21;
It is roughly divided into.
[0026]
In the stationary mode of FIG. 1, the protrusion 11 b of the operation member 11 is locked to the upper concave portion 10 a of the cover body 10.
[0027]
At this time,
-The lower end surface of the columnar portion 11c contacts the bottom surface portion (= the upper end portion of the groove portion 14b) of the intermediate passage member 14,
-The valve action part 18 closes the hole 11d of the columnar part 11c,
A gap 14c between the intermediate passage member 14 and the stem 20 is formed.
[0028]
The gap 14c between the intermediate passage member 14 and the stem 20 is moved to the operation mode by pressing the stem 20 when the columnar portion 11c is slightly moved downward due to some impact during transportation or an erroneous operation on the operation member 11. This is to prevent that.
[0029]
When the operation mode is set to the operation mode of FIG. 2, that is, when the rotation operation unit 11a in the state of FIG.
The protrusion 11b of the operating member 11 that has been locked to the upper concave portion 10a of the cover body 10 moves while being guided by the rail portion 10c and locks to the lower concave portion 10b;
The columnar portion 11c also moves downward by the amount of movement of the protruding portion 11b in the downward direction, pushing down the intermediate passage member 14,
The stem 20 is pressed by the amount of this depression.
[0030]
At this time, the valve action portion 18 and the valve member 15 also move downward in conjunction with the columnar portion 11c.
[0031]
When the stem 20 is pressed, the contents flow from the container 22 into the contents temporary storage section 19 through the stem 20, the passage 14a, and the groove 14b.
[0032]
And
-The internal pressure of the content temporary storage unit 19 increases,
The valve member 15 and the valve action portion 18 start moving upward as shown by the solid arrow due to the pressure,
The air in the upper space portion 15b passes through the felt 16-the air discharge hole portion 15d-the lower space portion 15c by an amount corresponding to the upward movement of the valve member 15, as shown by the broken line arrow, and the external space communication port. 10 e or the space 21 a between the mountain cap 21 and the cover body 10 is discharged to the external space 23.
[0033]
As described above, the excess air in the upper space portion 15b whose volume decreases in accordance with the upward movement of the valve member 15 becomes a laminar flow state, and is smoothly discharged to the external space 23. The upward movement of the action portion 18 is also smooth.
[0034]
As shown in FIG. 3, in the injection state, the valve member 15 further moves upward, and the hole 11 d of the operation member 11 is located below the valve action portion 18, that is, the valve member 15 is in the open state. It is injected from the injection port 13 into the external space 23 through the hole and the injection passage 11e.
[0035]
Therefore, the delay time from the injection operation to the actual start of the content injection is the time from turning the rotary operation unit 11 to opening the content injection hole 11d, which is the upward movement of the valve member 15. It depends on the speed (the so-called air discharge speed from the upper space 15b to the lower space 15c).
[0036]
When the hole 11d is opened, the contents of the container 22 are jetted into the external space 23 and the pressure is reduced, so that the internal pressure of the temporary storage 19 is also reduced and the force for pushing up the valve member 15 is reduced. However, at this time, the edge 15a of the valve member 15 is located in the concave portion 10f of the inner peripheral surface of the cover body 10 and the friction between the two is reduced, so that the valve member 15 is kept in the valve action portion 18 even after the hole 11d is opened. Moves smoothly until it comes into contact with the small diameter portion 10d of the cover body 10.
[0037]
The number and diameter of the air discharge holes 15d are arbitrary. By increasing or decreasing the number of holes or changing the diameter of the holes, the upward movement speed of the valve member 15 can be adjusted to provide a delayed injection mechanism in which a desired delayed injection time is set.
[0038]
Whether or not to provide the felt 16 for the air discharge adjusting member is optional. A member such as a sponge or a nonwoven fabric may be provided instead of the felt 16. For example, it is possible to provide a delay injection mechanism in which various delay times are set only by setting air discharge adjustment members of different materials to valve members having the same diameter and the same number of air discharge holes.
[0039]
FIG. 4 shows a delay injection mechanism 2 using an operating member 12 having a groove 12d formed on the outer peripheral surface of a columnar portion 12c. The basic difference from the delay injection mechanism 1 is the air discharge path of the upper space 17b.
[0040]
In the delay injection mechanism 2,
The upper space 17b communicates with the external space 23 through the groove 12d and the gap 12g between the cover body 10 and the operation member 12,
The lower space portion 17c communicates with the external space 23 via the external space communication port 10e and the gap 21a as in the case of the delay injection mechanism 1.
[0041]
FIG. 4 corresponds to the state of the delay injection mechanism 1 shown in FIG. That is, this is an initial stage in the operation mode after the rotation operation unit 12a is turned clockwise in the stationary mode (not shown).
[0042]
The protruding portion 12b of the operating member 12 moves down from the upper concave portion 10a of the cover body 10 to the lower concave portion 10b, and the columnar portion 12c pushes down the stem 20.
[0043]
And
The contents of the container 22 flow into the temporary storage section 19 as shown by the solid arrow, and push up the valve member 17 and the valve action section 18 with the pressure,
The air in the upper space 17b is discharged to the external space 23 through the groove 12d and the gap 12g as shown by the broken line arrow by an amount corresponding to the upward movement of the valve member 17.
[0044]
At this time,
The air in the upper space portion 17b whose volume decreases in accordance with the upward movement of the valve member 17 is discharged into the external space 23 in a laminar state,
-Since outside air flows into the lower space portion 17c whose volume increases in accordance with the upward movement of the valve member 17 through the external space communication port 10e and the gap 21a,
The valve member 17 and the valve action portion 18 smoothly move upward.
[0045]
When the valve member 17 is further moved upward from the position shown in the drawing and the hole 12e for ejecting the contents is located below the valve action portion 18, the contents pass through the holes and the passage 12f for ejecting and the ejection port passes. 13 is injected into the external space 23.
[0046]
The delay time of the content ejection is the time from when the rotary operation unit 12a is turned to when the hole 12e for content ejection is opened, as in the case of the delay ejection mechanism 1. This depends on the upward movement speed of the valve member 17.
[0047]
Further, as in the case of the delay injection mechanism 1, when the content starts to be injected, the force for pushing up the valve member 17 becomes weak due to the pressure drop of the content, but at this time, the edge 17a of the valve member 17 is The valve member 17 is located in the concave portion 10f of the surface so as to reduce the friction between the two, so that even after the hole 12e for injecting the contents is opened, the valve action portion 18 is kept in the small diameter portion 10d of the cover body 10. Move up smoothly until it comes into contact with.
[0048]
By changing the depth and width of the groove 12d, the amount of air discharged per unit time can be increased or decreased, and a desired delayed injection time can be set. The groove may be formed in the small diameter portion 10d of the cover body 10, or may be formed in both the columnar portion 12c and the small diameter portion 10d.
[0049]
In the delay injection mechanisms 1 and 2, when the operating members 11 and 12 are pushed down without forming the rails 10c for guiding the protrusions 11b and 12b of the operating members 11 and 12 on the cover body 10, the pressing force is applied. Then, the protrusions 11b and 12b of the operation member may ride over the upper concave portion 10a of the cover body 10 and be locked to the lower concave portion 10b.
[0050]
Aerosol products using the above-described delay injection mechanism include insecticides, cleaning agents, cleaning agents, and the like.
[0051]
As the contents of the aerosol type product, metal salt powder, inorganic powder, resin powder and the like are used. Examples include talc, kaolin, aluminum hydroxychloride (aluminum salt), barium sulfate, cellulose, and mixtures thereof. In addition, ultraviolet absorbers, oily raw materials, surfactants, humectants, high molecular compounds, antioxidants, sequestering agents, and the like are also used.
[0052]
【The invention's effect】
According to the present invention, as described above, the gas for the delay operation in the space region in which the volume is reduced due to the movement of the valve member based on the injection operation is discharged into the external space in a so-called laminar flow state, so that the valve member has To the injection position, and the omission of the closed space for accommodating the gas can be achieved.
[0053]
In addition, since the exhaust hole formed in the valve member and the external space communication area following the exhaust hole are used as the discharge portion for the delay operation gas, extra internal gas can be removed if the valve member moves during the delay operation. It can be efficiently discharged to the external space.
[0054]
In addition, since a resistance member for discharging the delay operation gas is provided in a portion communicating with the exhaust hole, the delay time can be expanded, and the delay time can be selectively set according to the resistance member. it can.
[0055]
In addition, a valve member which is a movable member, wherein a groove-shaped portion formed in a portion to be abutted between the injection output member (sheath-shaped portion) and the container cover body as a discharge portion of the gas for delayed operation, which is different from the valve member. However, the present invention eliminates the possibility of breaking the weight balance by providing an exhaust hole, so that the movement of the valve member during the delay operation can be made smooth.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a stationary mode of a delay injection mechanism in which an air discharge hole is formed in a valve member 15 according to the present invention.
FIG. 2 is an explanatory diagram showing an initial stage (a hole 11d: closed state) of an operation mode in the delay injection mechanism of FIG.
FIG. 3 is an explanatory view showing an injection stage (hole 11d: open state) subsequent to FIG. 2;
FIG. 4 is an explanatory view showing an initial stage (hole 12e: closed state) of an operation mode in a delay injection mechanism in which a column for air discharge is formed in a columnar portion 12c of the present invention.
FIG. 5 is an explanatory view showing an injection process in a conventional aerosol container having a delayed injection mechanism.
[Explanation of symbols]
1: Delayed injection mechanism (Part 1)
2: Delayed injection mechanism (Part 2)
10: cover body 10a: upper concave portion 10b: lower concave portion 10c: rail portion 10d: concave portion 10e: external space communication port 10f: concave portion 11: operating member 11a: rotating operation portion 11b: projecting portion 11c: columnar portion 11d: hole 11e: passage,
12: Operation member 12a: Rotating operation portion 12b: Projection portion 12c: Columnar portion 12d: Groove portion 12e: Hole portion 12f: Passage 12g: Gap 13: Injection port 14: Intermediate passage member 14b: Groove portion 14c: Gap 15: Valve member 15a: Edge portion 15b: Upper space portion 15c: Lower space portion 15d: Air discharging hole 16: Felt 17: Valve member 17a: Edge portion 17b: Upper space portion 17c: Lower space portion 18: Valve action Part 19: Content temporary storage part 20: Stem 21: Mountain cap 21a: Gap 22: Container 23: External space

Claims (5)

In a delayed injection mechanism in which the contents of the container are injected into the external space with a delay from the time of the injection operation,
Forming an output section for delayed injection, an injection output member that moves by the injection operation and sets the operation mode of the container,
A valve member that has a valve function for the output unit, and moves by the pressure of the content to shift the output unit from an inactive state to an active state.
A space area in which the volume decreases with the movement of the valve member,
A gas discharge unit for discharging gas for delay operation in the space area to an external space in accordance with the change in the volume during the movement of the valve member.
A delay injection mechanism characterized in that: As the gas discharge unit,
Using an exhaust hole formed in the valve member, and an external space communication area formed of the valve member and the container cover body and following the exhaust hole.
The delay injection mechanism according to claim 1, wherein: A portion communicating with the exhaust hole portion was provided with a resistance member against the gas discharging operation,
3. The delay injection mechanism according to claim 2, wherein: As the gas discharge unit,
The ejection output member comprising a sheath-shaped portion having a content passage hole as the output portion, and the container cover body which is in contact with the outer peripheral surface of the sheath-shaped portion to constitute the space region, Using a groove-shaped portion formed in at least one of the contact target portions,
The delay injection mechanism according to claim 1, wherein: An aerosol-type product provided with the delay injection mechanism according to claim 1, and containing a release gas and contents.

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