JP2002019859A - Aerosol spray device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fix spray start delay time and to correctly adjust the spray start delay time. SOLUTION: A cylinder member 5 is vertically movably provided in a cap 20. The cylinder member 5 is urged down by a coil spring 3. In a space below the cylinder member 5, a piston 6 is vertically movably arranged, thereby defining an air-tight fluid chamber Y between them. An air escape hole 8 is defined at the top of the fluid chamber Y. A fluid rate adjustment means for discharged air is provided in the upper zone of the escape hole 8. When a lever 1 is removed, an urging force of the coil spring acts on the fluid chamber, the piston is consequently moved down to press a valve core 12. As air in the fluid chamber is gradually discharged from the escape hole, the cylinder member is moved down. Upon the contact of the cylinder member with the piston, liquid contents discharged from the valve core is sprayed from a spray orifice 2a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a fuel injection system,
The present invention relates to a delay injection type aerosol injection device in which injection is reliably started after a predetermined period of time.

[0002]

2. Description of the Related Art Conventionally, a limited space is hermetically sealed, for example, extermination of discomfort pests such as a closet or a ceiling, sterilization and disinfection in a car, insecticide in a room and a toilet, and sterilization. A continuous aerosol injection device of a type in which the continuous injection is continued as it is when the actuator button is pressed and fixed in order to spray the spray at once, is commercially available. However, since these conventional known continuous injection type aerosol injection devices have a mechanism for immediately injecting the internal solution when an actuator button is pressed down, the aerosol injection device is set in a closed chamber. The solution may adhere to the body of the person, or harmful fog or gas may be inhaled. After setting the aerosol injection device, it is necessary to immediately evacuate from the place. Had issues.

[0003] The applicant of the present application has disclosed in
As disclosed in Japanese Patent No. 1453, after the injection setting,
The inventor has invented a delayed injection type aerosol injection device in which the internal solution in the aerosol container is started to be injected after a predetermined time has elapsed. This aerosol injection device has an urging means (coil spring) disposed inside a push button, and an operating portion (push-in piston), and a telescopic bellows is provided between the urging means and the operating portion. A fluid chamber composed of a bag or a piston / cylinder mechanism is provided, and these fluid chambers are provided with a fluid discharge port (a relief hole). Then, by applying the urging force of the urging means to the operating portion via the fluid chamber, the urging force of the urging means first acts on the sealed fluid in the fluid chamber, and the sealed fluid is discharged to the fluid outlet. As the air is gradually discharged to the outside after passing through, the operating part is lowered, and the valve core is pushed down to open the valve of the aerosol container.

[0004]

In the above-mentioned delayed injection type aerosol injection device, the operating portion is lowered in response to the fluid being gradually discharged to the outside through the fluid discharge port, and the valve core is pushed down, In order to open the valve of the aerosol container, the injection time can be delayed by the time until the operating part goes down and depresses the valve core.
However, the mounting position (height) of the valve core to the aerosol container varies depending on the product, and the distance between the operating portion and the valve core before the injection setting varies due to the variation. As a result, it has been difficult to make the time from the injection setting to the start of the injection constant. Therefore, the invention of the present application is designed so that the position (height) at which the valve core is attached to the aerosol container slightly varies.
It is a first object of the present invention to provide an aerosol injection device capable of keeping the time from the injection setting to the start of injection constant. Further, it is an object of the present invention to add a means capable of reliably adjusting the injection delay time. It is also an object of the present invention that the urging force of the urging means can be reliably locked so that the urging means does not malfunction.

[0005]

Means for Solving the Problems In order to solve the above problems, a first aspect of the present invention comprises an urging means 3 such as a coil spring and an operating portion 6 acting on a valve core 12 of an aerosol container 10. A sealed fluid chamber Y is provided between the urging means 3 and the operating section 6, and a fluid discharge section 8 is provided at an appropriate position of the fluid chamber Y, and the urging force of the urging means 3 is transmitted through the fluid chamber Y. In the aerosol injection device which can delay the start time of the injection of the internal solution in the aerosol container 10 by acting on the operating part 6, the fluid chamber Y is urged by the urging means 3 and can be moved up and down. Cylinder member 5
Is formed by an operating portion 6 that can move up and down inside the cylinder member 5, and the urging force acting on the cylinder member 5 from the urging means 3 acts on the operating portion 6, and the operating portion 6 By actuating the valve core 12 to open the injection valve and discharging the fluid from the fluid discharge unit 8, the cylinder member 5 is further moved by the urging of the urging means 3, so that the liquid inside the aerosol container 10 is discharged. Provided is an aerosol injection device that is injected outside.

According to a second aspect of the present invention, there is provided the aerosol injection apparatus according to the first aspect of the present invention, wherein the operating part 6 is fitted to the valve core 12 and receives the liquid content from the valve core 12. And an outlet 15 through which the content liquid in the conduction path 61 flows out.
An ejection port 2a for ejecting the content liquid to the outside is provided. Between the outlet 15 of the operating section 6 and the ejection port 2a of the cylinder member 5,
Opening / closing means that opens and closes according to the relative positional relationship between the cylinder member 5 and the operating part 6 is provided. As the fluid is discharged from the fluid discharge part 8, the cylinder member 5 is further moved by the urging of the urging means 3. Thereby, the opening / closing means shifts from the closed state to the open state, and the content liquid flowing out from the outlet 15 of the operating part 6 is ejected from the ejection port 2a of the cylinder member 5 to the outside. provide.

In the aerosol injection device according to the first and second aspects of the invention, when the injection setting is performed, first, the operating section 6 operates the valve core 12 of the aerosol container 10 to open the injection valve. Thereafter, the cylinder member 5 is further moved by the urging of the urging means 3 in accordance with the discharge of the fluid from the fluid discharge unit 8, so that the aerosol container 1 is discharged.
0 The internal liquid is injected to the outside. Therefore, the start time of the ejection of the content liquid to the outside is not affected by the position (height) of the valve core 12 and can be determined by the movement amount of the cylinder member 5 accompanying the discharge of the fluid from the fluid discharge part 8. . Specifically, the opening / closing means is determined by the relative positional relationship between the cylinder member 5 and the operating portion 6 when shifting from the closed state to the open state, and is affected by an error in the mounting position of the valve core 12. Can be prevented.

[0008] The third invention of the present application is the first or second invention.
In the aerosol injection device according to the invention, there is provided an aerosol injection device characterized in that the fluid discharge portion 8 is provided with a flow rate adjusting means for a fluid discharge amount. According to this third invention,
Since the flow rate of the discharged fluid is adjusted, the length of time until the urging force of the urging means acts on the operating portion via the cylinder member can be set more accurately. Further, by changing or fine-adjusting the flow rate adjusting means, the length of the delay time until the injection start timing can be changed and controlled as needed.

The fourth invention of the present application is the first to third inventions described above.
In the aerosol injection device according to any one of the above aspects, the cylinder member 5 is housed in the main body portion 20 of the aerosol cap, and the cylinder member 5 includes an injection port portion 5e extending from the main body portion 20 to the outside. Locking means 1 for preventing the action of the urging force of the urging means 3 is provided at the root of the injection port 5e. When the locking means 1 is released, the urging force of the urging means 3 acts on the cylinder member 5. What is provided is to provide. According to the fourth aspect, the locking means locks the action of the urging force of the urging means, which can prevent malfunction of the injection device according to the present invention, and erroneously injects the inner solution. Such an accident can be prevented beforehand.

The fifth invention of the present application is directed to the first to fourth aspects.
In the aerosol injection device according to any one of the above aspects, the fluid discharge portion 8 includes a flow rate adjusting means for the amount of fluid discharged, and the flow rate adjusting means fits the pin-shaped flow rate adjusting member 4 into the fluid discharge port 8. An object is provided that is characterized in that: A sixth invention of the present application is the aerosol injection device according to any one of the first to fourth inventions, wherein the fluid discharge unit 8 includes a flow rate adjustment unit for a fluid discharge amount, and the flow rate adjustment unit includes: There is provided a fluid discharge device in which a permeable member 81 for transmitting a small amount of fluid is arranged in a fluid discharge port 8. According to the fifth and sixth aspects of the invention, the pin-shaped flow rate adjusting member 4 or the fluid-permeable permeable member 8 is used.
According to 1, the flow rate can be more reliably controlled, and the length of the delay time until the injection start timing can be set more accurately.

The seventh invention of the present application is directed to the first to sixth embodiments.
In the aerosol injection device according to any one of the above aspects, the auxiliary urging means 9 for urging the cylinder member 5 and the operating portion 6 in the direction of separating the two 5 and 6 is arranged. Provide features. According to the seventh aspect of the present invention, in addition to the urging force of the urging unit 3, the auxiliary urging unit 9 urges the operating unit 6 in a direction of pushing down. Push-down operation can be performed reliably. Moreover, after the operating unit 6 has moved to the predetermined position,
The cylinder member 5 moves while the fluid is gradually discharged from the fluid discharge portion 8 by the urging means 3. If the urging force of the urging means 3 is too large, it is difficult to achieve a long-time delayed injection even if the fluid discharge unit 8 is provided. On the contrary,
By providing the auxiliary biasing means 9 and biasing the cylinder member 5 by the biasing means 3 in the direction opposite to the biasing direction, the force for moving the cylinder member 5 by the biasing means 3 is reduced, and a long-time delayed injection is facilitated. Can be realized.

The eighth invention of the present application is the first to seventh inventions described above.
In the aerosol injection device according to any one of the inventions, the cylinder member 5 is slidably housed in the main body portion 20 of the aerosol cap fixed to the aerosol container 10,
The operating part 6 is slidably housed in the cylinder member 5,
A fluid discharge section 8 is provided in the operating section 6, and the fluid discharged from the fluid discharge section 8 is discharged into a space between the aerosol container 10 and the main body section 20 of the aerosol cap. I will provide a. Accordingly, it is possible to prevent the fluid flowing out of the fluid discharge unit 8 from directly hitting a hand or the like of a person and giving a feeling of discomfort to the person. The ninth invention of the present application is the aerosol injection device according to any one of the first to eighth inventions, wherein the operating portion 6 is fitted with the valve core 12 and receives the content liquid from the valve core 12. A conductive path 61, an outlet 15 for allowing the liquid content in the conductive path 61 to flow out, and a sealing member 16 movably disposed from a position where the outlet 15 is directly closed from the outside to a position where the outlet 15 is not closed.
And a method characterized by comprising: Thereby, the state in which the outlet 15 is reliably closed is maintained, and during storage,
Alternatively, it is possible to prevent the liquid in the aerosol container from being ejected or leaking out during the delay operation.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The accompanying drawings all illustrate embodiments of the present invention. FIG. 1 is a plan view of a lever serving as a locking means of an injection device according to one embodiment of the present invention, and FIG. 2 is a cross-sectional explanatory view of the injection device according to one embodiment of the present invention. FIG. 3 is a cross-sectional explanatory view of the injection device according to the embodiment of the present invention, also showing a state before the setting. After a predetermined time has elapsed after the injection setting, the solution inside the aerosol container is injected. FIG.

In these figures, the aerosol spraying device according to the present invention is connected to a valve at the top of the aerosol container 10 by a lower claw 19 of a cap 20 serving as a main body of the spraying device. Cap 20 as a main body
Inside the cylinder member 5 having a built-in piston 6,
It is incorporated in the cap 20 via a coil spring 3 serving as an urging means. This piston 6 constitutes an operating portion described in the claims.

More specifically, the cylinder member 5
Has a substantially cylindrical shape with an open lower portion, and is housed inside a cap 20 also having a substantially cylindrical shape so as to be slidable vertically along the inner wall surface of the cap 20. The coil spring 3 serving as urging means is interposed between the upper surface of the cylinder member 5 and the inner wall surface of the upper surface of the cap 20, and can urge the cylinder member 5 downward. At the center of the upper surface of the cylinder member 5, a cylindrical extension 5e having an internal passage 5c therein is formed upward, and the extension 5e is provided on the upper surface of the cap 20 from inside the cap 20. 20h through hole
And is formed to extend to the outside. The extended portion 5e extending to the outside becomes an injection port (see FIG. 2). A nozzle 2 having an ejection port 2a for ejecting the internal solution to the outside is provided at the upper end of the extension (ejection port) 5e. A large-diameter portion 5f whose inner diameter is larger than the inner diameter of the lower portion is formed near the upper part of the internal passage 5c. As will be described later, the large diameter portion 5f is for forming a passage to the nozzle 2 when the solution in the aerosol container is discharged, and functions as a part of the opening / closing means.

Inside the cylinder member 5, there is arranged a piston 6 as an operating part which can relatively slide vertically along the inner wall surface. The piston 6 has a sliding surface 6b at its lower end that slides on the inner wall surface of the cylinder member 5, extends upward from the center of the upper surface of the sliding surface, and has an internal solution conducting path 61 inside. It has a rod 13. The lower end of the rod 13 is formed with a valve core fitting portion 7 that fits with the upper end of the valve core 12 provided at the center of the upper surface of the aerosol container. From the part 7, it can flow into the conduction path 61 inside the rod 13.
That is, the upper end of the valve core fitting portion 7 is
Is moved downward, thereby abutting against the upper end of the valve core 12, pushing down the valve core 12, and injecting the internal solution into the conduction path 61.

Further, the rod 13 is disposed so as to enter into an internal passage 5c formed inside an extension 5e formed at the center of the upper surface of the cylinder member 5, and the outer periphery of the rod 13 The surface is in air-tight contact with the inner wall surface of the internal passage 5c, and both slide while maintaining the air-tight state when the cylinder member 5 moves downward. An upper O-ring 16 and a lower O-ring 17 are provided on the outer peripheral surface of the rod 13 in order to maintain an airtight state between them. An outlet 15 is formed at an intermediate portion between these two O-rings. The outlet 15 will be described later, and a passage through which the content liquid flowing into the conduction path 61 flows out to the nozzle 2 side. It becomes. Also, the upper O
The ring 16 and the lower O-ring 17 function as opening / closing means of the present invention. That is, the outer peripheral surface of the rod 13 (the upper O
The ring 16 and the lower O-ring 17) are in airtight contact with the inner wall surface of the internal passage 5c, so that the content liquid that has flowed into the conduction path 61 does not flow out to the nozzle 2 side, and maintains a closed state. . Then, as described later, the upper O-ring 16 is located at the large-diameter portion 5f, and the airtight state is released.
In the open state.

The closed space formed by the cylinder member 5 and the piston (operating portion) 6 having the above structure constitutes the fluid chamber Y. At an appropriate position on the upper surface of the fluid chamber, that is, on the upper surface of the cylinder member 5, one or a plurality of small-diameter fluid discharge ports 8 are formed as fluid discharge portions 8 for gradually discharging a small amount of fluid. By the biasing force of the coil spring 3 serving as the biasing means, the fluid in the fluid chamber is gradually discharged to the outside from the fluid discharge port 8, and the cylinder member 5 gradually moves downward. The fluid outlet 8 is provided with a flow rate adjusting means. The fluid contained in the fluid chamber Y is preferably a low-viscosity fluid. In particular, a fluid having a substantially constant flow rate per unit time discharged from the fluid discharge port 8 by the urging force of the urging means is preferable. Preferably, specifically, water, silicone and the like can be exemplified in addition to gas such as air. Since the viscosity of the air is substantially zero, it is ideal in that the flow rate from the fluid outlet 8 per unit time is constant. In addition, the viscosity of water is low and stable. Although the viscosity of silicone is higher than that of air or water, it is extremely stable, and is extremely desirable in terms of stabilizing the delay time.
In the case where air is used in a place where air exists in an external environment such as a normal room, the air is always present in the fluid chamber Y.
Although a special closed structure is not required, in the case of water, silicone or the like, the fluid is securely stored in the fluid chamber Y such as closing the fluid discharge port 8 and storing the fluid in the fluid chamber Y before use. May be added to the configuration.

This flow rate adjusting means is formed in a fluid discharge port 8 provided on the upper surface of the cylinder member 5, and is provided in a receiving portion 52 extending upward from the upper surface of the cylinder member 5 into a pin-shaped flow rate adjusting member. 4 is fitted. That is, the gap formed by the receiving portion 52 and the flow rate adjusting member 4 becomes a fluid passage. For example, different flow rate adjusting members are prepared in advance, and the intervals of the gaps are made different by using different flow rate adjusting members. That is, the discharge amount of the fluid can be adjusted by appropriately changing the flow rate of the fluid passing through this passage per unit time, and as a result, the lowering speed of the cylinder member 5 can be freely set at high or low speed. Becomes The fluid discharged from the flow control means is discharged into the main body, but the fluid in the fluid chamber Y is moved between the upper part of the cylinder member 5 and the inside of the cap 20 by the lowering of the cylinder member 5. Since it is comparable to the size of the void formed in the cap 20, it is collected in the cap 20 and does not leak out.

FIG. 4A shows another example of the flow rate adjusting means. In this example, a permeable member 81 that is permeable is arranged at the fluid discharge port 8 so that the fluid in the fluid chamber Y is gradually and surely discharged. Specifically, it is formed with a large number of micropores that allow passage of a very small amount of fluid, and examples thereof include a continuous foam, a sintered body, artificial leather, and a nonwoven fabric. This permeable member 81 is arranged at the fluid outlet 8,
A cup-shaped pressing member 82 is arranged on the transparent member 81, and these are fixed by a lid member 83. The cup-shaped holding member 82 and the lid member 83 are each formed with one or more small holes 84 and 85 serving as fluid discharge channels. In addition, it is preferable that a plurality of fluid outlets 8 are formed so that the fluid flowing into the permeable member 81 is made uniform.

Further, as shown in FIG. 4B, the fluid discharge port 8 is not formed directly on the cylinder member 5, but is formed on the discharge port forming member 86. The member 86 may be attached to the cylinder member 5 and the above members such as the transparent member 81 may be disposed thereon. Thereby, there is an advantage that the processing accuracy of the fluid discharge port 8 is improved. Incidentally, in any of the examples in FIG.
Since it has a so-called sandwich structure in which the plate-shaped transparent member 81 is sandwiched and fixed from above and below, the plate-shaped transparent member 81 can be easily and reliably assembled.

Referring back to FIGS. 1 and 2, reference numeral 1 denotes a lever as a locking means. As shown in FIG. 2, the lever 1 has a side surface on which a pulling handle 1t is bent downward. 1 and 2, the narrow diameter portion 1 at the root of the extension (ejection port) 5 e of the cylinder member 5 protruding upward from the cap 20, as can be seen from FIGS. 1 and 2.
4 is sandwiched from both sides. As a result, the lever 1 is extended upward (injection port) 5 of the cylinder member 5.
e, and lock the cylinder member 5 inside the cap 20.
The action of the urging force of the coil spring 3 that urges the downward is stopped. That is, in this state, the coil spring 3 as the urging means is kept in a contracted state between the cylinder member 5 and the cap 20. Inside of lower end of handle 1t of lever 1 (cap side)
Is formed at a position corresponding to the outer surface of the cap 20 with a concave portion 20s fitted with the projected portion 1s, and is formed so as to be fitted to each other. As a result, the lever 1 is securely fixed to the cap 20.

In use, the handle 1t of the lever 1 is pulled up to make the lever 1 substantially linear when viewed from the side, and then the handle 1t is pulled out in the lateral direction to extend the lever 1 to extend the cylinder member 5. It is removed from the part (ejection port part) 5e, the lock is released, and the state of the injection set is established. As can be seen from FIG. 2, since the cut 1 k is formed in the bent portion of the lever 1, the handle 1 t of the lever 1 can be easily pulled upward in the direction of arrow A. Thus, since the lever 1 is provided so as to conform to the outer shape of the cap 20, it is possible to prevent the lever 1 from being erroneously operated and unlocked. In other words, something gets caught on lever 1,
There is no fear that it will come off, and the structure can prevent the occurrence of malfunction.

Next, the operation procedure of the aerosol injection device according to the present invention will be described. First, in performing the injection setting of the injection device, the lever 1 is pulled up in the direction of arrow A, and then pulled out in the direction of arrow B. The ejection setting is performed by pulling out the lever. When the lever 1 is pulled out, the contracted coil spring 3 starts to expand, exerts an urging force, and presses the upper surface of the cylinder member 5 downward. Due to this pressing, the pressure in the fluid chamber Y becomes instantaneously high, and the pressure causes the piston 6 to slide downward. When the piston 6 is depressed downward, the valve core fitting portion 7 and the valve core 12 of the aerosol container are completely fitted, and the valve core 12 is pressed to open an aerosol valve (not shown) in the aerosol container. As a result, the content liquid in the aerosol container flows from the valve core 12 into the conduction path 61 of the rod 13 and reaches the outlet 15. However, as described above, the upper O-ring 16 and the lower O-ring 17 provided above and below the outlet 15 in the rod 13 are in airtight contact with the inner wall surface of the internal passage 5c formed inside the extension 5e. The state in which the content liquid flowing into the conduction path 61 is not allowed to flow toward the nozzle 2 is maintained.

Further, when the coil spring 3 continues to expand and the fluid chamber Y is compressed, the internal fluid flows into the flow control means from the fluid discharge port 8 and then gradually discharges from the flow control means to the outside. Is discharged to the inside of the cap 20. As described above, as the fluid is gradually discharged from the inside of the fluid chamber Y to the outside (the inside of the cap 20), the cylinder member 5 is gradually pushed down. Then, as shown in FIG.
Is pushed down. As a result, the upper O-ring 16 provided on the rod 13 of the piston (operating portion) 6
Reaches the large-diameter portion 5f above the internal passage 5c. As a result, the opening / closing means is opened, and the airtight state is released, whereby the content liquid flowing into the conduction path 61 flows out of the outlet 15 toward the nozzle 2 and is jetted to the outside from the jet port 2a. . The time required for the upper O-ring 16 to reach the large-diameter portion 5f above the internal passage 5c is a delay time until the start of injection after injection setting.

As will be understood from the above description, immediately after the injection setting, the valve core 12 is pressed, the internal valve is opened, and the injection start timing is determined by the relative positional relationship between the cylinder member 5 and the piston 6. Only determined by. Therefore, the injection start timing is not affected by the variation in the mounting position (height) of the valve core 12, and by forming the cylinder member 5 and the piston (operating portion) 6 with accurate dimensions, a constant delay is always achieved. Time is gained. Further, even if it is difficult to form the small fluid discharge port 8 to a precise size, by arranging the flow regulating member 4, a more accurate discharge flow rate of the fluid can be obtained, and a more accurate delay can be obtained. Time adjustment becomes possible. When the cylinder member 5 is pressed downward, the ejection port (extended portion) 5e protruding outside the upper surface of the cap 20 descends downward, and the user visually recognizes the operation of the ejection device. You can check. If the injection is not performed for some reason, the injection can be started by the user forcibly pushing down the injection port (extended portion) 5e.

As described above, the flow rate of the gas discharged from the fluid discharge port 8 to the outside (the inside of the cap 20) can be controlled by the flow rate adjusting member 4, and is surrounded by the cylinder member 5 and the piston (operating portion) 6. By adjusting and controlling the amount of gas discharged from the space (fluid chamber) Y and the amount of gas discharged from the flow rate adjusting member 4 per fixed time, after the lever 1 is pulled out, the content liquid is discharged from the nozzle 2. It is possible to freely set the delay time until the fuel is injected into the atmosphere.

Next, another embodiment of the present invention will be described with reference to FIGS. In this embodiment,
This is an improvement of the previous embodiment, and the same parts as those in the previous embodiment are denoted by the same reference numerals, and description thereof will be omitted. In the aerosol injection device according to this embodiment, an auxiliary biasing means 9 for biasing the cylinder member 5 and the piston 6 as an operating portion in a direction for separating the two 5 and 6 is arranged. ing. A coil spring is suitable for the auxiliary biasing means 9, but another elastic body such as a leaf spring may be used. The auxiliary urging means 9 is interposed between the cylinder member 5 and the piston 6 to urge the cylinder member 5 upward,
The piston 6 is urged downward. The urging force of the auxiliary urging means 9 is set smaller than the urging force of the coil spring 3 for urging the cylinder member 5 described above.

Here, in the above-described embodiment, the ejection setting is performed by pulling out the lever 1 at the start of the operation, and the coil spring 3 that has expanded and contracted expands and presses the upper surface of the cylinder member 5 downward. By pressing, the fluid chamber Y
The pressure instantaneously becomes high, and the pressure causes the piston 6 to slide downward. On the other hand, in this embodiment, in addition to the pressure change in the fluid chamber Y,
The auxiliary biasing means 9 acts as a kind of power transmission means to move the piston 6 downward. That is, the cylinder member 5 is moved downward by the pressing force of the coil spring 3, and the auxiliary urging means 9 is contracted by the movement, and the contraction presses the piston 6 downward. Therefore, a more reliable movement is realized as compared with the case where the piston 6 is moved only by the pressure change in the fluid chamber Y.

Next, when the piston 6 is lowered and stopped at a predetermined position, and the coil spring 3 continues to expand, the fluid chamber Y is compressed, and the internal fluid is discharged to the fluid outlet 8.
Is discharged from In the previous embodiment, only the urging force of the coil spring 3 was involved in the compression of the fluid chamber Y. In this embodiment, however, the auxiliary urging means 9 applies the coil spring 3 to the cylinder member 5. A biasing force is applied in a direction opposite to the biasing direction. As a result, the downward load applied to the cylinder member 5 by the coil spring 3 is reduced by the auxiliary biasing means 9 and a smaller force is applied to the cylinder member 5 than in the case of the previous embodiment. Becomes Here, if the urging force of the urging means 3 is too large, it is difficult to realize a long-time delayed injection even if the fluid discharge port 8 is provided. However, as in this embodiment, the auxiliary urging means 9 is not used. Is provided to weaken the force of the coil spring 3 for moving the cylinder member 5, so that long-term delayed injection can be easily realized.

Next, the fluid discharge port 8 is opened below the piston 6. More specifically, the aerosol container 10
, The lower end of the cap 20 is fixed by the lower claw 19, the cylinder member 5 is slidably housed therein, and the piston 6 is slidably housed in the cylinder member 5. Since the fluid outlet 8 is provided so as to open below the piston 6, the fluid discharged from the fluid outlet 8 is supplied to the aerosol container 10 and the cap 20.
(More specifically, a space 87 between the aerosol container 10, the inner surface of the cap 20, and the lower surface of the piston 6). The fluid discharged into this space 87 is
It is discharged outside through a gap between the lower end of the cap 20 and the aerosol container 10. In the previous example, the fluid discharged into the cap 20 is discharged upward from the inside of the cap 20 to the outside, and the fluid may hit a human hand. In this example, the fluid is discharged from below the cap 20. Since the fluid is discharged to the outside, the possibility that the fluid hits human hands can be reduced. In this example, the entire size is reduced as a structure in which the lower end of the cap 20 is fixed to the tightening portion 1a of the aerosol container 1.

The fluid discharge port 8 may be selected from the configurations exemplified above, but in this example, a microporous membrane made of nonwoven fabric, synthetic resin, ceramic, or the like, or a permeable filter or the like is used. The permeable member 81 is disposed below the fluid discharge port 8, and the pressing member 8 such as a bush is placed on the permeable member 81.
2 is coordinated and fixed.

Lastly, the outlet 1 for conducting between the inside and the outside of the conducting path 61 formed inside the rod 13 of the cylinder member 5
5 and the O-rings 16 and 17 will be described. In the previous example, O-rings 16 and 17 are arranged above and below the outlet,
Although the structure for preventing the discharge of the content liquid was adopted, in this embodiment, the upper O-ring 16 is directly arranged at the outlet 15,
The use of the upper O-ring 16 as a sealing member for directly closing the outlet 15 enhances the completeness of the closing of the outlet 15. The upper O-ring 16 is arranged at the outlet 15 so as to be movable up and down, and closes the outlet 15 when the upper O-ring 16 is located in the internal passage 5c. Then, the cylinder member 5 is lowered,
If the upper O-ring 16 does not reach the large-diameter portion 5f above the internal passage 5c, the space above the upper O-ring 16 expands, and the compressed upper O-ring 16 escapes upward. , Move up. This allows
The closure of the outlet 15 by the upper O-ring 16 is released,
The content liquid is injected from the injection port 2a of the cylinder member 5.

Although the embodiments have been described above, the embodiments of the present invention can be modified as follows. Although the biasing means employs the coil spring 3 in the above embodiment, it can be implemented by using various elastic bodies such as a leaf spring or a rubber elastic body. The lever 1 serving as a locking means for locking the urging force of the urging means is not limited to the above embodiment, and the cylinder member 5 may
Any configuration can be adopted as long as the extension (ejection port) 5e extending to the outside of 0 can be fixed so as not to move downward. For example, instead of pulling out the lever, simply by moving the lever in the lateral direction, by positioning a hole having a width larger than the outer diameter of the nozzle provided on the lever at the nozzle, It is also possible to release the lock of the part, or it is also possible to form a part of the injection port part with a small diameter and to release the locking means by rotating the injection port part. Can be freely redesigned.

The cylinder member 5 also has a space inside,
Any structure can be used as long as the piston 6 can be housed therein so as to be vertically movable and can form a sealed space (fluid chamber) Y, and the form can be freely designed. The outer surface of the cylinder member 5 does not need to be tightly joined to the inner wall surface of the cap 20, and a gap may be appropriately opened. The piston 6 serving as an operating portion slides airtightly so as to be relatively vertically movable inside the cylinder member 5 and has any shape as long as a space Y sealed with the cylinder member 5 is formed. May be used.

Instead of the closed space Y, an elastic bellows bag or a tare having a hole through which the rod 13 can be inserted may be arranged in the space Y. That is, a fluid outlet is provided at a position corresponding to the escape hole 8, and this fluid outlet is
And can be implemented. In this case, the space Y does not need to be formed in a closed manner. The configuration of the flow rate adjusting means can also be changed as appropriate. In short, any structure can be used as long as the flow rate of the fluid per unit time can be controlled by appropriately changing the fluid discharge flow path. It may be. The opening / closing means only needs to open and close according to the relative positional relationship between the cylinder member 5 and the piston (operating portion) 6, and the specific form can be changed by applying various valve structures. . The actuating section 6 does not have to operate by directly contacting the valve core 12, and may operate the valve core 12 via another member.

[0037]

According to the first and second aspects of the present invention, the delay time from the start of injection to the start of injection can be reliably reduced without being affected by an error in the mounting position of the valve core to the aerosol container. It has been possible to provide an aerosol injection device that can be constant.

According to the third aspect of the present invention, since the flow rate of the discharged fluid is adjusted and controlled, the time required for the urging force of the urging means to act on the operating portion via the cylinder member is shortened. Can be adjusted, so that the length of the delay time from the injection setting to the injection start timing can be accurately controlled as needed as needed.

According to the fourth aspect of the present invention, the locking means locks the action of the urging force of the urging means, which can prevent the injection device according to the present invention from malfunctioning. An accident of injecting the solution can be prevented beforehand. In addition, when the locking means is released, the ejection port is lowered by the urging means. However, the drop of the ejection port can be visually observed, and the operation of the apparatus can be confirmed. Furthermore, after releasing the locking means, if necessary, the injection port can be forcibly pushed downward by the user's hand to forcibly press the valve core of the aerosol container.

According to the fifth and sixth aspects of the present invention, the flow rate can be controlled more reliably by the pin-shaped flow rate adjusting member and the fluid-permeable member, and the delay until the injection start timing can be achieved. An aerosol injection device in which the length of time can be set more accurately can be provided.

According to the seventh aspect of the present invention, the urging means 3
In addition to the above urging force, the provision of the auxiliary urging means 9 makes it possible to reliably push down the operating portion 6 at the beginning of operation, and to easily realize long-term delayed injection. is there.

According to the eighth aspect of the present invention, in addition to the above-described effects, it is possible to prevent the fluid flowing out of the fluid discharge portion 8 from directly hitting a hand or the like of a person and giving a feeling of discomfort to the person. It demonstrates.

According to the ninth invention of the present application, in addition to the above effects, by directly closing the outlet 15 with the sealing member 16, the liquid content of the aerosol container can be stored or stored during the delay operation. This has the effect of preventing injection and leakage.

[Brief description of the drawings]

FIG. 1 is a plan view of a lever serving as a lock unit of an injection device according to an embodiment of the present invention.

FIG. 2 is an explanatory cross-sectional view of an injection device according to an embodiment of the present invention, showing a state before an injection set.

FIG. 3 is an explanatory cross-sectional view of the injection device according to one embodiment of the present invention, showing a state in which a predetermined time has elapsed after the injection setting, and the internal solution in the aerosol container is being injected.

FIGS. 4A and 4B are enlarged sectional explanatory views of a main part of an injection device according to another embodiment of the present invention.

FIG. 5 is an explanatory sectional view of an injection device according to another embodiment of the present invention, showing a state before an injection set.

FIG. 6 is an explanatory cross-sectional view of an injection device according to another embodiment of the present invention, showing a state in which a predetermined time has elapsed after injection setting, and the internal solution inside the aerosol container is being injected. .

[Description of Signs] 1 ... Lever (locking means), 2 ... Nozzle, 2a ... Injection port, 3 ... Coil spring (biasing means), 4 ... Flow rate adjusting member, 5 ... Cylinder member, 5e ... Injection port, 6 ... Piston (operating part), 7 ... Valve core fitting part, 8 ... Relief hole (fluid discharge port), 10 ... Aerosol container, 12 ... Valve core, 13 ... Rod, 14 ... Small diameter part, 15 ... Outflow port,
16 upper O-ring, 17 lower O-ring, 20 cap, 61 conduction path, 81 permeable member, Y space (fluid chamber)

Continued on the front page F term (reference) 3E014 PA01 PB01 PD01 PE14 PE22 PF10 4F033 RA02 RA20 RB05 RC03

Claims (9)

[Claims] An actuating part acting on a biasing means (3) such as a coil spring and a valve core (12) of an aerosol container (10).
(6), a sealed fluid chamber (Y) is provided between the urging means (3) and the operating section (6), and a fluid discharge section (8) is provided in the fluid chamber (Y). By applying the urging force of the urging means (3) to the operating portion (6) via the fluid chamber (Y), the aerosol can be delayed in the timing of injecting the solution in the aerosol container (10). In the injection device, a fluid chamber (Y) is urged by an urging means (3) and can move up and down, and a cylinder member (5);
(5) is formed by an operating part (6) that can move up and down, and an urging force acting on the cylinder member (5) from the urging means (3) acts on the operating part (6), 6) is aerosol container
Activate the valve core (12) of (10) to open the injection valve, and as the fluid is discharged from the fluid discharge part (8), the urging means (3)
The aerosol spray device is characterized in that the cylinder member (5) is further moved by the biasing of the above, whereby the liquid in the aerosol container (10) is sprayed to the outside. An operating portion (6) engages with the valve core (12) and receives a liquid content from the valve core (12).
1) and an outlet (1) through which the content liquid in the conduit (61) flows out.
5), wherein the cylinder member (5) is configured to spray the content liquid to the outside.
(2a), the outlet (15) of the working part (6) and the injection port of the cylinder member (5)
(2a), there is provided opening / closing means for opening / closing according to the relative positional relationship between the cylinder member (5) and the operating portion (6), and as the fluid is discharged from the fluid discharging portion (8), Biasing means
When the cylinder member (5) is further moved by the bias of (3), the opening / closing means shifts from closed to open, and
The liquid flowing out from the outlet (15) of (6)
The aerosol device according to claim 1, wherein the aerosol is injected from the injection port (2a) to the outside. 3. The fluid discharge section (8) is provided with flow rate adjusting means for controlling a fluid discharge amount.
3. The aerosol injection device according to claim 1. 4. A cylinder member (5) is housed in a body (20) of an aerosol cap, and the cylinder member (5) has an injection port (5e) extending from the body (20) to the outside. Locking means (1) for preventing the action of the urging force of the urging means (3) is provided at the root of the injection port (5e), and the urging means (1) is released by releasing the locking means (1). The aerosol injection device according to any one of claims 1 to 3, wherein the biasing force of (3) acts on the cylinder member (5). 5. A fluid discharge section (8) comprising a flow rate adjusting means for controlling a fluid discharge amount, said flow rate adjusting means having a pin-shaped flow rate adjusting member (4) fitted into said fluid discharge port (8). The aerosol injection device according to any one of claims 1 to 4, wherein 6. A fluid discharge section (8) having flow rate adjusting means for fluid discharge amount, said flow rate adjusting means arranging a permeable member (81) for transmitting a small amount of fluid to a fluid discharge port (8). The aerosol injection device according to any one of claims 1 to 4, wherein: 7. Between the cylinder member (5) and the operating part (6),
Auxiliary biasing means for biasing both (5) and (6) in a direction to separate them
The aerosol injection device according to any one of claims 1 to 6, wherein (9) is arranged. 8. A cylinder member (5) is slidably housed in a body part (20) of an aerosol cap fixed to an aerosol container (10), and an operating part (6) is housed in the cylinder member (5). It is slidably housed, a fluid discharge part (8) is provided in the operating part (6), and the fluid discharged from the fluid discharge part (8) is used for the aerosol container (1).
The aerosol injection device according to any one of claims 1 to 7, wherein the aerosol ejection device is discharged into a space between (0) and a main body portion (20) of the aerosol cap. An operating portion (6) is engaged with a valve core (12) and receives a liquid content from the valve core (12).
1) and an outlet (1) through which the content liquid in the conduit (61) flows out.
5) and a seal member (16) movably arranged from a position where the outlet (15) is directly closed from the outside to a position where the outlet (15) is not closed. An aerosol injection device according to any one of the above.