JP4272797B2 - Aerosol products - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to aerosol products. More specifically, the present invention relates to an aerosol product in which one injection amount can be determined in advance.
[0002]
[Prior art]
As a conventional mechanism capable of adjusting the injection amount, a quantitative valve capable of injecting a constant amount is known. On the other hand, in aerosol products that spray insecticides that control ticks and cockroaches, the state is maintained when a button is pressed, and aerosol products that inject the entire amount of insecticide in a container at once are also known.
[0003]
The above-described metering valve includes, for example, one in which a tank is attached to the valve housing and the contents in the tank are injected. In this case, the injection amount is determined by the capacity of the tank. And since a tank is accommodated in a housing or attached to a housing, the capacity | capacitance is about 1 ml at most. Therefore, when a certain amount of injection is required, it is necessary to operate the button many times.
[0004]
A full-injection type aerosol product can determine the amount of injection per time depending on the content. However, since the amount of injection at one time varies depending on the application, if this is to be covered, products of various sizes must be manufactured depending on the application. In addition, it is uneconomical because it is used up only once, and particularly when a small amount is sufficient, a small-capacity container is used, and parts such as containers and valves are more uneconomical.
[0005]
In order to adjust the timing of the start of injection, injection is started after a predetermined time has elapsed after the operator has pressed the button to give the full-injection type aerosol product a time to retreat outside the room. Some have a delay mechanism (for example, see Japanese Patent Laid-Open Nos. 10-273182 and 10-175687).
[0006]
[Problems to be solved by the invention]
In the present invention, the amount that can be injected by one operation is much larger than that of the aerosol product equipped with the metering valve, and the injection amount per one time can be variously designed with the same type of aerosol product. The technical problem is to provide an aerosol product of a mass-quantity injection type that can be set and thereby economical.
[0007]
In order to solve the problems]
Aerosol products of the present invention, container and a valve provided thereon, a main body having a button attached to the stem of the valve; rotatably time provided at the center of the button at the top of the body A setting ring; and a timer having a power source for rotating the time setting ring at a constant speed; the button has a locking claw, and the time setting ring is locked when the button is pushed in. And a notch formed in the stopper for releasing the engagement, and rotating the time setting ring by a predetermined amount to push the button to open the valve, and And the stopper are engaged, and the valve is kept open while the locking claw and the stopper are engaged, and the time setting ring rotates and the notch is positioned at the locking claw. With locking claws Releasing the engagement between the stopper is characterized in that the closing valve. The time setting ring is preferably provided with a scale for setting time or injection amount. The time setting ring and the timer may be provided detachably with respect to the main body . Injection amount per unit time found is what preferably includes a regulator mechanism substantially constant. Further, it is preferable to further include a delay injection mechanism for performing an operation of opening the valve after a predetermined time has elapsed after performing a predetermined operation . The button includes a cylinder, a piston slidably accommodated in the cylinder, and an outflow hole through which the content flows out. The inside of the cylinder is divided into a first chamber and a second chamber by the piston. The first chamber is provided with an introduction hole communicating with the stem, the second chamber is provided with a passage for escaping fluid in the second chamber, and the outflow hole is formed at the lower end of the piston. It is preferable to provide a delay injection mechanism that is closed at a certain time and opens when the piston moves to the upper end.
[0008]
[Operation and effect of the invention]
In the aerosol product of the present invention, the user rotates the time setting ring by a predetermined amount and pushes the button to open the valve. If the user leaves the valve to stand, the valve automatically closes after a predetermined time has elapsed. Since the injection amount is substantially determined by the injection time, it stops after injecting a predetermined amount of contents. Thereby, the injection amount can be made constant. In this way, in the present invention, since the injection time is determined in advance as a means for making the injection amount constant, there is no limit on the capacity of the tank, and for example, an amount of 1/2 to 1/4 of the capacity of the container can be reduced at a time. It can be made to inject. Further, for example, if the present invention is applied by increasing the capacity of an aerosol injection-type aerosol product by 2 to 4 times, the size of the container increases, but waste of materials such as valves can be eliminated. The aerosol product of the present invention is useful as an aerosol product for indoor treatment such as fumigants, deodorants, and fragrances.
[0009]
In addition, when the user operates the valve in the middle of the injection to stop the injection, it is necessary to be careful of the passage of time, and in addition, it is necessary to enter the room during the injection. Absent. The aerosol product of the present invention stops automatically and does not harm the health of the user. In addition, by detecting the weight of the aerosol product, it may be possible to detect the predetermined injection amount and automatically stop the valve, but the time adjustment mechanism is easier than the method of measuring such weight. Can be realized.
[0010]
Aerosol products of the present invention, a container, a valve provided thereon, a main body having a button attached to the stem of the valve; on top of the main body, rotatably provided around a button A time setting ring; and a timer having a power source for rotating the time setting ring at a constant speed. The button setting claw is opened by rotating the time setting ring by a predetermined amount and pushing the button to open the valve. And the stopper of the time setting ring are engaged, and the valve is kept open while the locking claw and the stopper are engaged. By reaching the position of the locking claw, the engagement between the locking claw and the stopper is released and the valve is closed. Therefore, the injection can be stopped after a predetermined time, and one injection amount can be determined as described above.
[0011]
The predetermined time is determined in advance at the time of design or set in advance at the time of shipment. Depending on the type of product, it is manufactured and sold as 10 minutes (or ~ g) x 6 times type, 30 minutes x 2 times type, etc. can do. In that case, basically, a common aerosol product can be used. However, it provided that the scale of the setting time or the injection quantity in the time setting ring, if it is assumed that can be set at the time of use, depending on the room size, setting the user appropriate injection quantity (injection time) in advance This makes it possible to further share products.
[0012]
Wherein if freely provided detachably time setting ring and the timer for the body, can be used repeatedly time setting ring and timer, the user may be replaced only a body. Therefore, it is economical and preferable from the viewpoint of resource protection.
[0013]
In the case of a general aerosol product, the injection amount per unit time decreases as the internal pressure decreases. If the aerosol products with regulator mechanism in addition to the time setting ring and the timer is proportional and the elapsed and the injection amount of time, it is easy to injection quantity setting by adjusting the injection time.
[0014]
In addition to the time setting ring and timer, if employing the valve opening operation delay mechanism, the user starts the injection from the retracted from the room, the injection after a predetermined time has elapsed is stopped. It is therefore safer since the user does not have to be near the aerosol product being sprayed. The time setting ring and the delay mechanism may be time-controlled with the same timer .
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the aerosol product of the present invention will be described with reference to the drawings. FIG. 1a is a perspective view showing an embodiment of the aerosol product of the present invention, FIG. 1b is a timing graph showing a state of an injection operation of the aerosol product, FIG. 2 is a cross-sectional view of an essential part of the aerosol product, and FIG. 4 is a timing chart showing the operation of another embodiment of the aerosol product of the present invention, FIG. 4 is a cross-sectional view of the main part showing another embodiment of the aerosol product of the present invention , and FIG. FIG . 6 is a graph showing the operation of the regulator-equipped valve according to the present invention, and FIG. 7 is a sectional view showing an example of the regulator-equipped valve according to the present invention.
[0016]
The aerosol product 10 shown in FIG. 1 includes a main body 11 and an injection time adjusting mechanism 12 provided on the upper portion of the main body. The main body 11 includes a container 13, a valve 14 provided on the container 13, and a button 16 attached to a valve stem (see reference numeral 15 in FIG. 2). The container 13 is filled with a stock solution to be injected and a propellant. The valve 14 is a conventionally known valve that opens when pushed down, and when the hand is released, the stem 15 is raised and closed by a spring action. The button 16 is provided with a nozzle hole 17.
[0017]
As shown in FIG. 2, the injection time adjusting mechanism 12 includes means 21 for maintaining the valve 14 in an open state for a predetermined time, means 22 for detecting that a predetermined time has elapsed since the start of injection, and means for detecting the means. Means 23 for stopping the injection operation when it is detected that a predetermined time has passed, and these are assembled to a shoulder cover 24 that is detachably attached to the container 13.
[0018]
The means 21 for maintaining the valve in an open state can be constituted by a locking claw 25 provided on the button 16 and a stopper 26 that releasably engages with the locking claw 21 when the button 16 is pushed. The time detection means 22 can be realized by a time setting ring 27 provided with the stopper 26 and a timer 28 that rotates the time setting ring 27 at a constant speed. For the timer 28, for example, a conventionally known one that uses a spiral spring 29 or a battery wound by the rotation of the time setting ring 27 or a battery as a power source and includes a speed adjusting mechanism (not shown) such as a balance is adopted. Yes. The means 23 for stopping the injection operation can be realized by a spring 30 that urges the stem 15 in the valve 14 upward and a notch 31 that releases the engagement with the locking claw 21 formed on the stopper 26. A spring 32 that urges the button 16 upward may be provided separately. The time setting ring 27 may be provided with a scale indicating the set time as it is, but may be provided with a scale (reference numeral 33 in FIG. 1) indicating the weight of the contents to be ejected.
[0019]
In order to use the aerosol product 10 described above, first, the amount of contents to be sprayed is determined according to the size of the room, and the time setting ring 27 is rotated to a position corresponding thereto. At that time, the spiral spring 29 is wound up. Then push button 16 in. Thereby, the locking claw 25 is locked to the stopper 26, and the button 16 is maintained in the pushed-in state. The injection starts from the nozzle hole 17 of the button 16.
[0020]
Thereafter, the time setting ring 27 is slowly rotated by the urging force of the spiral spring 29, and the injection is continued. When the time setting ring 27 returns to the original reference position, the locking claw 25 comes to the position of the notch 31 of the stopper 26, so that the engagement of the locking claw 25 is released and the button 16 is built in the valve 14. The valve 14 is closed by the urging force of the spring 30 to be closed. This stops the injection.
[0021]
The above operation will be described with reference to the timing graph shown in FIG. 1b. When the button 16 is pressed, the injection start T1 corresponds to, and when the button 16 moves up, the injection stop T2 corresponds. The angle between them indicates the injection time T3. This injection time T3 can be arbitrarily set by an angle when the time setting ring 27 is first turned.
[0022]
As described above, in the aerosol product 10, since the ejection stops at the initially determined ejection time, the entire content of the container 13 is not ejected, and according to the predetermined ejection time, for example, 1 / 2, 1/3 or 1/4 can be ejected. Then, at the next use, in the same manner as described above, 1/2 to 1/4 of the remaining contents can be ejected again. Therefore, it can be used to eject one aerosol product several times in a predetermined amount, which is more economical than discarding the entire container and parts one time.
[0023]
FIG. 3 is a timing graph of an aerosol product in which, in addition to the injection time adjusting mechanism 12, a delay mechanism for starting injection after a certain time (delay time Tm) has elapsed after the operation start To. This can be saved outdoors during the delay time Tm. As the delay mechanism, for example, a fluid type described in JP-A-10-53287, a mechanical type described in JP-A-10-175687, JP-A-10-273182, or a timer and valve operation An electric type combined with an actuator for use can be used.
[0024]
FIG. 4 shows a main part of an aerosol product provided with a mainspring drive type injection time adjusting mechanism 12 and a fluid type delay mechanism 34. The delay mechanism 34 includes a button 36 having a cylinder 35, a piston 37 slidably accommodated in the cylinder 35, and a cover 39 attached to an end of a piston rod 38 fixed to the piston 37. The piston rod 38 penetrates the upper end of the button 36, and a gap 40 between the through hole and the piston rod 38 is an air ventilation path. The inside of the cylinder 35 is divided into a first chamber 41 and a second chamber 42 by a piston 37, and the first chamber 41 communicates with an introduction hole 44 that communicates with the stem 43. Further, the button 36 is formed with an outflow hole 45 that is closed when the piston 37 is at the lower end and opens when the piston 37 moves to the upper end. The outflow hole 45 communicates with the injection hole 47 of the nozzle tip 46. The injection time adjusting mechanism 12 is substantially the same as that of FIG.
[0025]
In this case, after setting the injection time with the time setting ring 27, when the button 36 is pressed together with the cover 39, the locking claw 21 of the injection time adjusting mechanism 12 is engaged with the stopper 26 and the button 36 is pressed. maintain. Then, the valve 14 is opened, and the content flowing out from the stem 15 enters the first chamber 41 via the introduction hole 44. However, since the piston 37 blocks the outflow hole 45, the content does not immediately flow out of the injection hole 47. The contents entering the first chamber 41 raise the piston 37 while slowly pushing out the air in the second chamber 42 from the gap 40. At that time, the cover 39 attached to the piston rod 38 is also raised. When the piston 37 moves to the upper end, the outflow hole 45 is opened, and the contents in the first chamber 41 are ejected from the injection hole 47 via the outflow hole 45.
[0026]
When the time set by the injection time adjusting mechanism 12 arrives, the time setting ring 27 returns to the original reference position, and the locking claw 21 enters the notch 30 of the stopper 26 as described above, so that the button 36 is raised. The valve 14 is closed and the injection is finished.
[0027]
When injecting for the second time, the time setting ring 27 at the reference position is rotated again in accordance with a predetermined injection time, the cover 39 protruding greatly from the button 36 is pushed down to the original position, and the button 36 is further pushed down. Thus, the valve 14 may be kept open. The cover 39 may be pushed down to the original position after the first injection is completed to prepare for the next use.
[0028]
In the delay mechanism 34 of FIG. 4, the gap 40 between the piston rod 38 and the through-hole passing therethrough is used as an air passage communicating with the second chamber 42 and the outside. Therefore, when returning the cover 39 to the original position, it is necessary to put air into the second chamber through the gap 40, which is very troublesome. Therefore, it is preferable to provide a check valve 48 on the wall of the button 36 that does not allow air to pass from the second chamber 42 to the outside and easily passes from the outside to the inside. Instead of the gap 40, a through hole (microcapillary) having a diameter of several μm that penetrates the wall of the button 36 may be provided. In that case, the gap 40 is sealed with an O-ring or the like. In this case as well, it is preferable to provide a check valve 48.
[0029]
In the above embodiment, the delay time is gained by the viscous resistance of the air exiting from the second chamber 42 through the gap 40, but the second chamber 42 is filled with liquid and the viscous resistance of the fluid is filled. May be used. In that case, the space between the cover 39 and the outer wall of the button 36 is sealed so that it can be used repeatedly, and the liquid is held inside the cover 39. In that case, since the piston 37 can be returned when the cover 39 is pushed to return the fluid to the second chamber 42, the piston rod 38 is unnecessary. Therefore, the button 36 may be provided with a small hole that allows the inside of the cover 39 and the second chamber 42 to communicate with each other.
[0030]
FIG. 5 shows an actuator 51 for operating the stem 15 of the valve 14 up and down, a control circuit 52 having a timer function for controlling the actuator, a battery 53 for supplying power to the actuator 51 and the control circuit 52, timer setting, etc. The electric injection time adjustment mechanism 55 provided with the operation button 54 for is shown. Reference numeral 56 denotes a liquid crystal monitor that displays an operation state, for example, a set time, in conjunction with the operation button 54. As the actuator 51, a solenoid or a motor is used. When the injection time is set by operating the time setting button 54, the actuator 51 raises the stem 15 and closes the valve 14 according to the set time. Furthermore, this can also function as a delay mechanism in which the actuator 51 pushes down the stem 15 to start injection after a predetermined time has elapsed after the operation is started. In this case, the delay time can be set to a predetermined time, for example, about 3 to 5 minutes, but it is also easy for the user to set it with the time setting button 54.
[0031]
In any of the above embodiments, a desired injection amount is obtained by determining the injection time. However, in the case of an aerosol product containing a compressed gas such as nitrogen gas or carbon dioxide gas, when the remaining amount of the content decreases and the internal pressure decreases, the amount of ejection per hour decreases as shown by the curve 61 in FIG. . For this reason, for example, the set time is 10 minutes for the first injection and the set time is 15 minutes for the second injection, so that it is necessary to change the set time in order to obtain a desired injection amount, which is complicated. Therefore, it is preferable to use a valve with a (flow rate) regulator that ensures a constant flow rate (amount of ejection per unit time) regardless of fluctuations in internal pressure.
[0032]
An example of such a valve with a regulator is a valve 70 shown in FIG. In this case, when the internal pressure is large, the piston 72 rises and the gap 73 that connects the inside of the housing 71 and the container becomes small, and when the internal pressure decreases, the piston 72 descends and the gap 73 becomes large. Thereby, a constant flow rate can be ensured at all times. When such a regulator-equipped valve 70 is used, as shown by a curve 62 in FIG. Accordingly, since the injection time and the injection amount are substantially proportional, it is easy to set the injection time.
[Brief description of the drawings]
FIG. 1a is a perspective view showing an embodiment of an aerosol product of the present invention, and FIG. 1b is a timing graph showing a state of an injection operation of the aerosol product.
FIG. 2 is a cross-sectional view of a main part of the aerosol product of FIG.
FIG. 3 is a timing graph showing the operation of another embodiment of the aerosol product of the present invention.
FIG. 4 is a cross-sectional view of an essential part showing another embodiment of the aerosol product of the present invention.
FIG. 5 is a cross-sectional view of a principal part showing a form outside the range of the aerosol product of the present invention.
FIG. 6 is a graph showing the operation of the regulator-equipped valve according to the present invention.
FIG. 7 is a cross-sectional view showing an example of a valve with a regulator according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Main body 12 Injection time adjustment mechanism 13 Container 14 Valve 15 Stem 16 Button 17 Means 22 Maintaining means 22 Detecting means 23 Stopping means 24 Shoulder cover 25 Locking claw 26 Stopper 27 Time setting ring 28 Timer 29 Spiral spring 30 Spring 31 Notch 32 Spring 33 Scale 34 Delay mechanism 35 Cylinder 36 Button 37 Piston 38 Piston rod 39 Cover 40 Gap 41 First chamber 42 Second chamber 44 Introduction hole 45 Outflow hole 46 Nozzle tip 47 Injection hole 48 Check valve 51 Actuator 52 Control circuit 53 Battery 54 Operation button 55 Injection time adjustment mechanism 56 Liquid crystal monitor 61, 62 Curve 70 Valve with regulator 71 Housing 72 Piston 73 Gap

Claims (6)

A body having a container, a valve provided thereon, and a button attached to the stem of the valve;
A time setting ring provided at the top of the main body so as to be rotatable around a button;
A timer having a power source for rotating the time setting ring at a constant speed;
The button has a locking claw;
The time setting ring has an annular stopper that engages with the locking claw when the button is pushed in, and a notch formed in the stopper that releases the engagement,
By rotating the time setting ring by a predetermined amount and pushing the button to open the valve, the locking claw and the stopper are engaged, and the valve is open while the locking claw and the stopper are engaged. Aerosol product that is maintained in the position and the time setting ring rotates and the notch becomes the position of the locking claw, thereby disengaging the locking claw and the stopper and closing the valve. The time setting ring, aerosol products 請 Motomeko 1 wherein graduation of the setting time or injection quantity is provided. Aerosol products according to claim 1, wherein said time setting ring and the timer is detachably provided with respect to the body. The aerosol product according to claim 1, further comprising a regulator mechanism that makes the injection amount per unit time substantially constant. The aerosol product according to claim 1, further comprising a delayed injection mechanism that performs an operation of opening a valve after a predetermined time has elapsed after performing a predetermined operation. The button is composed of a cylinder, a piston slidably housed in the cylinder, and an outflow hole through which the content flows out.
The inside of the cylinder is divided into a first chamber and a second chamber by a piston,
The first chamber is provided with an introduction hole communicating with the stem,
The second chamber is provided with a passage for escaping fluid in the second chamber,
The aerosol product according to claim 5, further comprising a delayed injection mechanism that is closed when the outflow hole is at a lower end of the piston and opens when the piston moves to the upper end.

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