JP2006123913A - Jetting instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a jetting instrument capable of continuously jetting a content in a container outside without causing any environmental destruction. <P>SOLUTION: The container 10 comprises a cylindrical container body 11 having a mouth part 13 on an upper portion thereof, and a bottom lid 12 to be screwed to its bottom part. A piston 14 is slidably stored in the container body from the bottom part to the mouth part while being tightly attached to an inner peripheral surface, and after an opening in the bottom part is covered, a fluid is filled in from the mouth part and stored in the container body. Thereafter, the jetting instrument 20 is mounted on the mouth part, a coil spring (an urging member) is inserted in the bottom part, a bottom lid is covered thereon, and the piston is urged toward the mouth part of the container to raise the internal pressure of the container. In the jetting instrument, an outlet valve 26 is mounted on a stem 25, and a spout (an operating member) 27 is mounted on the stem. By pushing down the spout, the stem is pushed in, the outlet valve is opened during the operation, the fluid in the container is continuously jetted outside by the internal pressure, and when the pushing-down operation is stopped, the jetting is stopped. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  This invention is an external operation of an operating member such as a spout or a trigger lever, which is elastically deformed or slid to open an outlet valve and eject the fluid in the container to the outside. The present invention relates to a sprayer for cosmetics and painting.

  In some sprayers for cleaning and insecticidal use, it may be desired to continuously discharge the chemical solution in the container. 2. Description of the Related Art Conventionally, there is an aerosol-type ejector that continuously ejects contents stored in a container to the outside by continuously pressing down a spout or continuously rotating a trigger lever.

  In the aerosol type ejector, the propellant is contained in the container together with the contents, the internal pressure in the container is increased by the pressure of the propellant, and the outlet valve is opened by externally operating an operation member such as a spout or a trigger lever. During external operation, the container contents can be continuously ejected to the outside by internal pressure.

  On the other hand, some ejectors include a piston in a container, and the piston is urged by an urging member to eject the contents of the container to the outside.

JP 2001-179139 A Japanese Utility Model Publication No. 4-32978 Japanese Utility Model Publication No. 62-28774

  However, in aerosol-type ejectors, since chlorofluorocarbon is used as propellant, chlorofluorocarbon ejected with the contents rises in the air and destroys the ozone layer in the stratosphere, causing harmful UV rays from the sun to humans and animals. Problems such as causing various adverse effects, causing causes such as deterioration of materials, and adversely affecting the climate.

  Also, in some conventional ejectors, the piston is moved by the urging force of the urging member to increase the internal pressure of the container, the outlet valve is opened by externally operating the operation member, and the contents only by the increased internal pressure There was nothing that erupted to the outside.

  Accordingly, an object of the present invention is to provide an ejector capable of continuously ejecting the contents of a container to the outside without causing environmental destruction.

For this reason, the present invention is formed in a cylinder shape, and a container that contains a fluid such as a cleaning agent, an insecticide, a cosmetic agent, a paint, and the like, and an inner peripheral surface of the cylinder-shaped container are in close contact with each other. A piston that slides in the container from the bottom to the mouth side and pushes the fluid in the container from the mouth side, and biases the coil spring toward the mouth side of the container, such as a coil spring A member and an ejection device attached to the mouth of the container,
An outlet valve such as an elastic valve or a slide valve, which closes the mouth side of the container and raises the internal pressure of the container by the urging force of the urging member, is pushed down and rotated to the outside. An operating member such as a spout / trigger lever is provided that opens the outlet valve by operation and continuously ejects the fluid in the container by internal pressure.

  As the ejection device, for example, an aerosol-type ejection device that is attached to the mouth of the container with an aerosol-type ejector and ejects the contents of the container to the outside is used. In addition, a pump-type spraying device that is attached to the mouth of the container with a pump-type sprayer, pumps up the contents of the container, and sprays it to the outside is used.

  When in use, the outlet valve is opened by pushing or rotating an operating member such as a spout / trigger lever or rotating externally, and the fluid in the container is continuously ejected from the mouth side by internal pressure. At the same time, the piston is moved to the mouth side by the urging member as the fluid in the container decreases, and the increased internal pressure is maintained and the ejection state is continued. When the external operation of the operating member is stopped and the operating member is returned to the original position, the outlet valve is closed to stop the ejection of fluid.

  Therefore, according to the present invention, since no fluorocarbon is used unlike the aerosol type ejector, the fluid in the container is continuously ejected to the outside by continuously operating the operation member outside without causing environmental destruction. An ejector that enables this can be provided.

  If the conventional aerosol type or pump type jetting device is used as the jetting device, the components used in the conventional jetting device can be used as they are, and the jetting device according to the present invention can be made. The initial investment can be reduced by reducing the number of new parts such as members.

  In addition, when the container is provided with a bottom lid that can be opened and closed, the piston or biasing member into the container can be attached by attaching the bottom lid after the piston or biasing member is assembled in the container. Assembling can be simplified. Also, the operation of inserting the fluid into the container can be facilitated.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 shows a longitudinal section of an ejector according to the present invention.

  Reference numeral 10 in the figure denotes a container. The container 10 includes a container body 11 and a bottom lid 12 both made of a resin material or a metal material. The container body 11 is formed in a cylinder shape, and the upper portion is narrowed down to form a mouth portion 13 having a male screw on the outer periphery, while the bottom portion is opened downward and a male screw is also provided on the outer periphery of the bottom portion.

  The piston 14 is first inserted into the container main body 11 from the bottom opening, and is slidably accommodated from the bottom of the cylindrical container 10 to the mouth 13 side. The piston 14 is in close contact with the inner peripheral surface of the container body 11 and closes the bottom opening of the container body 11. Thereafter, a fluid such as a cleaning agent, an insecticide, a cosmetic agent, or a paint is poured into the container body 11 from the mouth portion 13. Then, the screw cap 22 is screwed onto the mouth male screw on the outer periphery of the mouth 13, and the ejection device 20 is attached to the mouth 13 of the container 10.

  In addition to the screw cap 22, the ejection device 20 includes a cylinder 23, a return spring 24, a stem 25, an outlet valve 26, a spout 27 as an operation member, a nozzle member 28, a packing 29, and the like.

  The cylinder 23 has a bottom portion having a communication hole 30, has a flange portion 31 on the outer periphery of the middle step, and forms an upward step portion 32 on the inner periphery of the middle step. Then, the coil-shaped return spring 24 is inserted into the interior, the lower portion of the stem 25 is inserted, and the stem 25 is placed on the return spring 24. The stem 25 has a central hole 33 which is closed downward and opened upward, and has a through hole 34 which penetrates in the radial direction so as to communicate with the vicinity of the bottom of the central hole 33. The outlet valve 26 is attached to the through hole 34 to close the through hole 34. The outlet valve 26 is an elastic valve having an annular plate shape.

  Thereafter, the screw cap 22 is put on the cylinder 23 through the stem 25 in the center hole of the screw cap 22, placed on the flange 31, and fitted onto the cylinder 23. At this time, the stem 25 is pushed down by the screw cap 22 via the outlet valve 26, the return spring 24 is slightly compressed, and the outer peripheral lower surface of the outlet valve 26 is pressed against the upward stepped portion 32 so that the outer periphery of the outlet valve 26 is screwed. It is sandwiched between the cap 22 and the cylinder 23. At this time, the stem 25 protrudes upward from the center of the screw cap 22.

  Then, the upper part of the protruding stem 25 is pressed into the center, and the spout 27 is attached to the mouth portion 13 of the container 10 so as to be externally operable. A nozzle member 28 having a spout 35 is attached to the spout 27, and a discharge channel 36 is formed in the radial direction from the center toward the nozzle member 28. A finger hook portion 37 is provided on the top surface.

  Then, the packing 29 is inserted into the screw cap 22 and applied to the lower surface of the flange portion 31 of the cylinder 23. Thereafter, the cylinder 23 is inserted into the mouth portion 13 of the container 10, the mouth portion 13 is covered with a screw cap 22, and screwed to the mouth portion male screw to attach the ejection device 20 to the mouth portion 13 of the container 10. At this time, the packing 29 is compressed between the collar part 31 and the mouth part 13, and the space between them is kept airtight.

  Thereafter, the coil spring 15 as an urging member is inserted into the container body 11 by being pressed against the piston 14. Next, the cup-shaped bottom lid 12 is attached to the container main body 11 by screwing to the male screw at the bottom, the coil spring 15 is compressed, and the piston 14 is urged toward the mouth 13 of the container 10 by the coil spring 15. The internal pressure of 10 is increased, and the coil spring 15 and the piston 14 are prevented from coming off. A plurality of air holes 16 are formed in the bottom lid 12, and outside air can be taken into the bottom of the container 10 through the air holes 16, thereby preventing negative pressure in the low part and lightening the movement of the piston 14.

  Now, when using this ejector, the container 10 is held by hand, the spout 35 is directed to the target site, the finger is placed on the finger rest 37, and the spout 27 is pushed down. Then, as shown in FIG. 2, the stem 25 is pushed into the cylinder 23 against the return spring 24, the outlet valve 26 is elastically deformed to create a gap between the stem 25, and the outlet valve 26 is opened. The fluid in the container 10 in the cylinder 23 through the communication hole 30 is introduced into the center hole 33 from the through hole 34 of the stem 25 by internal pressure, and is led to the jet outlet 35 of the nozzle member 28 through the discharge flow path 36 of the spout 27. It spouts from the spout 35 to the target site.

  As the fluid in the container 10 decreases, the piston 14 is moved to the mouth 13 side by the coil spring 15 to maintain the increased internal pressure, and while the spout 27 is pushed down, the ejection state is continued. . When the push-down operation of the spout 27 is stopped, the stem 25 returns to the original position by the return spring 24, cancels the elastic deformation of the outlet valve 26, closes the outlet valve 26, and stops the ejection of fluid. When the fluid in the container 10 is completely used by repeated use, as shown in FIG. 3, the piston 14 presses against the ceiling in the container 10, and the container 10 becomes empty.

  According to the illustrated ejector, since no fluorocarbon is used unlike the aerosol-type ejector, by continuously operating the spout 27 outside without causing environmental destruction, the fluid in the container 10 is emptied until it becomes empty during that time. It can continue to be ejected continuously.

  In the above-described example, the aerosol-type ejection device 20 is attached to the mouth portion 13 of the container 10. However, according to the present invention, for example, a pump-type ejection device 40 as shown in FIG. Also good.

  4 includes a cylinder 43, a return spring 44, a stem 45, an outlet valve 46, a spout 47 as an operation member, a packing 49, and the like together with a screw cap 42. The spout 47 in this example does not include a nozzle member having a jet port, and communicates with the jet port 51 as it is from the discharge flow path 50.

  Unlike the ejection device 20 described above, in the ejection device 40 shown in FIG. 4, a ball valve 53 is provided by closing the communication hole 52 of the cylinder 43. Also, the lower end of the stem 45 is opened, the piston member 54 is inserted into the stem 45 from the lower end, and an outlet valve 46 is provided between the piston member 54 and the stem 45 to partition the pressure chamber 55 in the cylinder 43. Become.

  When the spout 47 is pushed down, as shown in FIG. 5, the stem 45 is pushed into the cylinder 43 against the return spring 44 to increase the pressure in the pressure chamber 55 and between the outlet valve 46 and the outlet valve 46. A clearance is created to open the outlet valve 46, and the fluid in the pressure chamber 55 is guided between the stem 45 and the piston member 54 to the central hole of the stem 45, and from the central hole through the discharge flow path 50 of the spout 47. Erupts from the outside.

  When the pressure in the pressure chamber 55 decreases to a certain level or less as the fluid is discharged, the ball valve 53 is opened by the internal pressure of the container 10, and the fluid in the container 10 enters the pressure chamber 55 from the communication hole 52, and the pressure continues. Due to the internal pressure of the chamber 55, it is ejected from the central hole of the stem 45 to the outside through the ejection flow path 50 of the spout 47.

  As the fluid in the container 10 decreases, the piston 14 is moved toward the mouth 13 by the coil spring 15 to maintain the increased internal pressure, and while the spout 47 is pushed down, the spout state is continued. . When the push-down operation of the spout 47 is stopped, the stem 45 returns to the original position by the return spring 44, closes the outlet valve 46 again, and stops the ejection of fluid. When the fluid in the container 10 is completely used by repeated use, as shown in FIG. 6, the piston 14 presses against the ceiling in the container 10, and the container 10 becomes empty.

  Since this ejector does not use chlorofluorocarbon as in the aerosol type ejector, by continuing to operate the spout 47 without causing environmental destruction, the fluid in the container 10 is discharged to the outside until it becomes empty. And can continue to erupt continuously.

It is a longitudinal cross-sectional view of the ejector which concerns on this invention. It is the longitudinal cross-sectional view of the state which pushed in the spout. It is a longitudinal cross-sectional view of the state in which the fluid in the container has completely disappeared. It is a longitudinal cross-sectional view of the other example of the ejector which concerns on this invention. It is the longitudinal cross-sectional view of the state which pushed in the spout. It is a longitudinal cross-sectional view of the state in which the fluid in the container has completely disappeared.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Container 12 Bottom cover 13 Mouth part 14 Piston 15 Coil spring (biasing member)
20 Spouting device 25 Stem 26 Outlet valve 27 Spout (operating member)
40 Spouting device 45 Stem 46 Outlet valve 47 Spout (operating member)

Claims (4)

A container having a cylinder shape and containing a fluid therein; a piston that slides in the container from the bottom to the mouth side to push the fluid in the container from the mouth side; and An urging member that urges toward the part side, and an ejection device attached to the mouth of the container,
An outlet valve that closes the mouth side of the container and raises the internal pressure of the container by the urging force of the urging member, and opens the outlet valve by externally operating the ejection device. An ejector comprising: an operation member that continuously ejects by an internal pressure.   The ejector according to claim 1, wherein the ejector is an aerosol-type ejector.   The ejector according to claim 1, wherein the ejection device is a pump-type ejection device.   The ejector according to any one of claims 1 to 3, wherein the container is provided with a bottom lid that can be freely opened and closed.

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