JP3964160B2 - Liquid ejector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid ejector.
[0002]
[Prior art]
Various types of liquid ejectors are known, but the stem protrudes so as to be able to be pushed down from the upper surface, and the internal discharge valve is opened by pushing down the stem, and the stored liquid is ejected by gas pressure. In general, an aerosol container body configured as described above is fitted with a cylindrical ejection head or a nozzle-shaped ejection head.
[0003]
As an example of the former, for example, a vertical cylinder fitted with a stem at the lower end is suspended from the rear surface of the top wall, a peripheral wall is suspended from the peripheral edge of the top wall, and the base end is communicated with the upper end of the vertical cylinder. There may be mentioned a nozzle which is provided horizontally through a peripheral wall and opened at its tip as a jet outlet. In addition, as an example of the latter, an upper end of a pour cylinder that is connected to a mounting cylinder that is fitted to the upper end of the outer periphery of the container body through a hinge so as to be swingable up and down, and that has a lower end closely fitted to the stem. There is one that protrudes integrally through the push-down plate.
[0004]
In this type of conventional liquid ejector, the gas remains in the container even after the stored liquid is used up, and therefore, there is a risk of causing various inconveniences when discarded as it is. Perforated by degassing and then discarded. In addition, for those equipped with an overcap that covers the ejection head etc. and is attached to the container body, a specially configured degassing projection is formed on the upper surface of the cap, and the cap is used for degassing at the time of disposal. It is carried out.
[0005]
[Problems to be solved by the invention]
Degassing with a nail or the like is troublesome because a tool must be prepared, and drilling is difficult. In addition, the latter requires a specially configured overcap, which is expensive to manufacture and has the disadvantage that the overcap must be provided.
[0006]
The present invention has been made in view of the above points, and the gas remaining in the container after the storage liquid is used up can be discharged by a very simple operation, and can be discarded without any inconvenience caused by the remaining gas. The present invention also proposes a liquid ejector that can be easily manufactured at low cost and easily.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the liquid ejector according to the first aspect of the present invention projects the stem 4 so as to be able to be pushed down from the upper surface in a biased state, and the built-in discharge valve opens by the depression of the stem 4 so that the liquid pressure is increased. An aerosol container body 2 configured to be ejected from the stem, a mounting cylinder 7 fitted to the stem 4 and mounted, and an ejection head 3 having a liquid flow path A extending from the mounting cylinder 7 to the ejection port 8, an aerosol A frame member 12 having a flange-like top plate 15 extending inwardly from the upper part of the fitting cylinder 14 fitted to the outer peripheral upper end of the container body 2 and a peripheral wall 10 of the ejection head 3 are pivotally attached to the frame body 12 and ejected. The ejection head 3 is interposed between a downward locking surface 18 projecting laterally from the upper outer surface of the head 3 and the frame member top plate 15 to prevent the ejection head 3 from being pushed down. Rotating lever that can push down 3 13 is provided at the upper end portion of the rotating lever 13 with a protruding first engaging portion 24 whose tip surface is slidable on the locking surface 18, and on the top plate 15 opposite to the lower end portion of the rotating lever 13. A liquid ejecting apparatus characterized in that a second engaging part 25 that can be engaged with the first engaging part 24 is provided, and both engaging parts are engaged after facing each other to maintain the pressed-down state of the ejection head 3. Configured as a vessel.
[0008]
Further, in the liquid ejector according to the second aspect of the present invention, the rotary lever 13 has upper and lower edges that form arcuate front views protruding in the vertical direction, and a rotary shaft 20 that protrudes from the inner surface. A rotating plate 21 that is pivotably fitted through the peripheral wall 10 of the ejection head 3 and a finger-hanging plate that protrudes from the outer surface of the rotating plate 21 and that has its lower surface rotatably locked on the top plate 15. The liquid ejector according to claim 1, wherein the liquid ejector is a rotating lever comprising 22.
[0009]
According to a third aspect of the present invention, the liquid ejector includes a pair of protrusions 27 formed on the left and right sides of the first engaging portion 24 by forming a dovetail recess 26 in the upper end of the rotating plate 21. And the second engaging portion 25 is formed on the inner side of the top plate 15 at the position opposite to the lower end of the rotating lever 13, and the protrusions 27 are fitted to each other, and the center The liquid ejector according to claim 2, wherein the liquid ejector is a second engaging portion comprising a pair of through holes 29 defining an ant-like protrusion 28 with which the concave portion 26 engages.
[0010]
Further, in the liquid ejector according to the fourth aspect of the present invention, the first engaging portion 24 is configured as a projection 27 having an arcuate front view whose upper surface protrudes upward and having an engaging protrusion 30 on the upper portion. It is a first engaging portion, and the second engaging portion 25 is formed on the inner side of the top plate 15 at the position opposite to the lower end of the rotating lever 13 and also over the rear surface of the top plate 15 at the edge. The liquid ejector according to claim 2, wherein the liquid ejector is a second engaging portion configured as a through-hole 29 that is engaged to fit the protrusion 27.
[0011]
Further, in the liquid ejector according to a fifth aspect of the present invention, the locking surface 18 is a curved surface having an arcuate front view shape in which the upper and lower edges of the rotating plate 13 are slidable. It was configured as a liquid ejector.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
As shown in the drawings, the liquid ejector 1 of the present invention includes an aerosol container body 2 (hereinafter simply referred to as a container body) and an ejection head 3.
[0014]
The container body 2 is configured such that a stem 4 protrudes from the upper surface so as to be able to be pushed down in an upwardly biased state, and the built-in discharge valve is opened by pushing down the stem 4 so that liquid is ejected from the stem 4 by gas pressure. A known form can be used. In the illustrated example, an annular ridge 5 is erected on the peripheral edge of the upper surface, and a downward stepped portion 6 is provided on the outer periphery thereof.
[0015]
The ejection head 3 is made of a synthetic resin or the like, and is fitted with a mounting cylinder 7 at the lower end fitted to the stem 4 so as to be able to be pushed down. A is provided. In the illustrated example, a mounting cylinder 7 having an opening at the lower end is suspended from the rear surface of the top wall 9 and a peripheral wall 10 is suspended from the peripheral edge of the top wall 9. Further, a front end jetting port 8 of a nozzle 11 having a base end opened at the upper part of the mounting cylinder 7 passes through the peripheral wall 10 and projects forward.
[0016]
The present invention includes a frame member 12 and a rotating lever 13 in this type of liquid ejector.
[0017]
The frame member 12 is formed of synthetic resin or the like, and has a flange-like top plate 15 extending inward from a fitting cylinder 14 fitted to the upper peripheral edge of the container body 2. In the illustrated example, the lower part of the inner periphery of the fitting cylinder 14 is fitted to the upper end of the outer periphery of the container body 2, and the engaging protrusion 16 that protrudes intermittently in the circumferential direction at the inner peripheral lower end of the fitting cylinder 14 faces downward. It is engaged with the step portion 6 to prevent it from coming out. Further, the lower surface of the locking rib 17 protruding from the inner periphery of the upper portion of the fitting cylinder 14 is brought into contact with and locked to the peripheral edge of the upper surface of the container body 2 to prevent downward displacement.
[0018]
The rotation lever 13 is also made of synthetic resin or the like, and is pivotally mounted on the peripheral wall 10 of the ejection head 3 and has a downward locking surface 18 projecting laterally from the upper outer surface of the ejection head 3. It is configured to be interposed between the upper surface of the frame member top plate 15 to prevent the ejection head 3 from being pushed down, and to be able to push down the ejection head 3 in a rotated sideways state.
[0019]
The locking surface 18 protrudes above the portion on which the rotating lever 13 is mounted, and the protruding position in the circumferential direction is not particularly limited, but is generally a protruding portion that protrudes above the outer surface of the peripheral wall 10 as shown in the illustrated example. The lower surface of 19 is preferably a locking surface 18. Further, the lower surface of the nozzle 11 can be a locking surface. As the form of the locking surface 18, various forms can be adopted as long as the upper end of the rotating lever 13 can be rotatably locked. For example, although not shown, a general horizontal surface or a front view as shown in the example protrudes upward. You may form in the curved surface which makes the circular arc shape. In the case of the illustrated example, the upper and lower ends of a rotating plate (described later) of the rotating lever 13 are configured to be slidable.
[0020]
Further, the rotating lever 13 in the illustrated example has upper and lower end surfaces each having an arcuate frontal shape protruding in the vertical direction, and a rotating shaft 20 protruding from the inner surface passes through the peripheral wall 10 of the ejection head 3. Thus, the rotary plate 21 is rotatably fitted and the finger plate 22 protrudes from the outer surface of the rotary plate 21. The finger hanging plate 22 protrudes from the center left and right of the rotating plate 21, and the lower surface of the finger hanging plate 22 is pivotally contacted and locked to the upper surface of the top plate 15 to prevent the ejection head 3 from being pushed down in this state.
[0021]
In the present invention, the engagement means for maintaining the pressed-down state of the ejection head 3 is provided. Engaging means are provided at the upper end portion of the rotating lever 13 such as a protruding first engaging portion 24 whose tip surface can slide on the locking surface 18 and the top plate 15 opposite the lower end portion of the rotating lever 13. A first engaging portion 24 provided and a second engaging portion 25 that can be engaged are provided, and the engaging head is engaged after the engaging portions are opposed to each other to maintain the pressed-down state of the ejection head 3. . More specifically, when the ejection head 3 is pushed down after the first engagement portion 24 is rotated 180 ° and the respective engagement portions are opposed to each other, the first engagement portion 24 is forced to the second engagement portion 25. The ejecting head 3 is maintained in the depressed state, and as a result, the stem 4 is maintained in the depressed state.
[0022]
Various specific forms of the first engaging portion 24 and the second engaging portion 25 can be adopted as long as they satisfy the above requirements. In the embodiment shown in FIG. 1 to FIG. 9, a first engagement portion 24 comprising a pair of protrusions 27 formed on the left and right sides by forming a dovetail recess 26 in the upper end of the rotating plate 21, The first plate 15 includes a pair of through-holes 29 formed on the inner side of the top plate 15 and defining ant-like protrusions 28 into which the protrusions 27 are fitted and the recesses 26 are engaged at the center. 2 engaging portions 25. In addition, the through-hole here includes a kerf shape with the other end opened as in the illustrated example, and the same applies to the following.
[0023]
The embodiment shown in FIGS. 10 to 12 and the embodiment shown in FIGS. 13 to 14 employ different engagement means. These have a first engaging portion configured as a projection 27 having an arcuate front view with an upper surface projecting upward and having an engaging projection 30 on the upper portion. A second engaging portion formed as a through hole 29 that is formed on the inner side portion of the top plate 15 at the lower end facing position and that engages the engaging protrusion 30 over the back surface of the top plate 15 at the edge to engage the protrusion 27. Adopted.
[0024]
In the embodiment shown in FIGS. 10 to 12, the first engagement portion 24 is formed as a protrusion 27 having an arcuate front view whose upper surface protrudes upward and having an engagement protrusion 30 on the upper front surface. is doing. The second engagement portion 25 is formed on the inner side of the top plate 15 at the position opposite to the lower end of the rotating lever 13 and the engagement protrusion 30 is moved over the rear surface of the top plate 15 at the edge to engage with the protrusion 27. It is configured as a through hole 29 to be joined.
[0025]
In the embodiment shown in FIGS. 13 and 14, the first engagement portion 24 is formed as a projection 27 having an arc-shaped front view whose upper surface protrudes upward, and having engagement protrusions 30 on both sides of the upper portion. is doing. The second engaging portion 25 is formed on the inner side of the top plate 15 at the position opposed to the lower end of the rotating lever 13, and the engaging protrusions 30 are moved over and engaged with the back surface of the top plate 15 on both side edges. It is constituted as a through hole 29 for fitting the.
[0026]
The case where the liquid ejector 1 configured as described above is used will be described with reference to the embodiment shown in FIGS. When not in use, as shown in FIGS. 1 to 3, the upper end of the rotating lever 13 is abutted and locked to the locking surface 18, and the lower end surface of the rotating lever 13 is locked to the upper surface of the frame member top plate 15. Pushing down of the ejection head 3 is prevented. At this time, the lower surface of the rotating plate 21 is abutted and locked on the ant-shaped protrusion 28 of the second engaging portion 25, and the lower surface of the finger hanging plate 22 is abutted and locked on the upper surface of the outer portion of the top plate 15. This reliably prevents the ejection head 3 from being pushed down.
[0027]
In use, as shown in FIG. 4 to FIG. 6, after turning the turning lever 13 into the horizontal state and then pushing down the ejection head 3, the stem 4 is pushed down and the jet outlet is formed through the liquid flow path A. From 8 the liquid spouts out.
[0028]
Further, when the stored liquid is exhausted, if the ejection head 3 is pushed down after the rotation lever 13 is rotated 180 ° from the state shown in FIGS. 1 to 3, the first engagement is performed as shown in FIGS. The portion 24 is engaged with the second engagement portion 25, and the state where the ejection head 3 is pushed down can be maintained and the residual gas in the container body 2 can be discharged.
[0029]
In the embodiments shown in FIGS. 10 to 14, the description is omitted because the same operation is shown in principle.
[0030]
【The invention's effect】
As described above, the liquid ejector according to the first aspect of the present invention has the above-described configuration, so that it is possible to switch between a state in which the stored liquid can be ejected, a locked state, and a degassing state with a simple structure, which is extremely easy to use. . Further, since the gas can be vented by a simple operation after use, it is possible to eliminate various inconveniences caused by the remaining gas and dispose of it.
[0031]
Further, the liquid ejector according to the second aspect of the present invention has an arcuate front view shape in which the upper and lower end edges of the rotating plate 21 protrude in the vertical direction, so that the rotating lever 13 can be easily rotated. Since the lower surface of the finger hanging plate 22 is configured to be pivotably locked on the top plate 15, the locked state can be presented more stably.
[0032]
Further, in the liquid ejector according to the third aspect of the present invention, each engaging portion is formed by forming a dovetail recess 26 in the rotating plate 21 and a pair of through holes 29 in the frame member top plate 15. It has the advantage that it can be manufactured easily.
Further, the liquid ejector according to the fourth aspect of the invention also has the advantage that it can be easily manufactured.
[0034]
In the liquid ejector according to the fifth aspect of the present invention, the locking surface 18 and the upper end edge of the rotating plate 21 or the lower end surface when rotated 180 ° are in close contact with each other in an arc shape. It can be maintained.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.
FIG. 2 is a rear view of the same embodiment.
FIG. 3 is a perspective view of the same embodiment.
FIG. 4 is a vertical cross-sectional view of a main part in a state where the rotation lever of the same embodiment is rotated by 90 °.
FIG. 5 is a rear view showing a state in which the turning lever of the embodiment is turned by 90 °.
FIG. 6 is a perspective view showing a state in which the turning lever of the embodiment is turned by 90 °.
FIG. 7 is a longitudinal sectional view showing a state where the ejection head is pushed down and locked after the rotation lever of the embodiment is rotated 180 °.
FIG. 8 is a rear view showing a state where the ejection head is pushed down and locked after the rotation lever of the embodiment is rotated 180 °.
FIG. 9 is a perspective view showing a state where the ejection head is pushed down and locked after the rotation lever of the embodiment is rotated 180 °.
FIG. 10 is a longitudinal sectional view showing another embodiment of the present invention and showing a state where the ejecting head is pushed down and locked after the turning lever is turned by 180 °.
FIG. 11 is a rear view showing a state where the ejection head is pushed down and locked after the rotation lever of the embodiment is rotated 180 °.
12 is an enlarged cross-sectional view of a main part of FIG.
FIG. 13 is a rear view showing a state in which the ejection head is pushed down and locked after the rotation lever is rotated by 180 ° according to another embodiment of the present invention.
14 is an enlarged view of a main part of FIG.
[Explanation of symbols]
2 ... Aerosol container body, 3 ... ejection head, 4 ... stem, 7 ... mounting cylinder, 8 ... jet outlet, 10 ... peripheral wall, 12 ... frame member, 13 ... rotating lever, 14 ... fitting cylinder, 15 ... top plate, 18 ... Locking surface, 20 ... Rotating shaft, 21 ... Rotating plate, 22 ... Finger hanging plate, 24 ... First engaging portion, 25 ... Second engaging portion, 26 ... Dovetail recess, 28 ... Ant Shaped projection, 29 ... through hole, A ... liquid flow path

Claims (5)

A stem 4 is provided so as to be able to be pushed down in an upwardly biased state from the upper surface, and the built-in discharge valve opens when the stem 4 is pushed down, and the aerosol container body 2 is configured to eject liquid from the stem by gas pressure. The mounting cylinder 7 is fitted and mounted, and the inside of the ejection head 3 having the liquid flow path A extending from the mounting cylinder 7 to the jet outlet 8 and the upper part of the fitting cylinder 14 fitted to the upper end of the outer periphery of the aerosol container body 2 A frame member 12 having a flange-shaped top plate 15 extending in the direction, and a downward locking surface which is pivotally attached to the peripheral wall 10 of the ejection head 3 and protrudes laterally from the upper outer surface of the ejection head 3. A rotation lever 13 that is interposed between the frame member top plate 15 to prevent the ejection head 3 from being pushed down and can be pushed down in the rotated state; The top end of the lever 13 has a locking surface 18 on the tip. A movable projection-like first engagement portion 24 is provided, and a second engagement portion 25 that can be engaged with the first engagement portion 24 is provided on the top plate 15 at a position opposite to the lower end portion of the rotation lever 13. A liquid ejector characterized by being configured to maintain the pressed-down state of the ejection head 3 by engaging the joint after facing each other. Each of the rotating levers 13 has upper and lower end edges each having an arcuate front-view shape projecting in the vertical direction, and a rotating shaft 20 protruding from the inner surface is rotated through the peripheral wall 10 of the ejection head 3. 2. A rotary lever comprising a rotary plate 21 fitted so as to be movable, and a finger hanging plate 22 protruding from the outer surface of the rotary plate 21 and having its lower surface rotatably locked on the top plate 15. Liquid ejector as described. The first engagement portion 24 is a first engagement portion formed by a pair of protrusions 27 formed on the left and right sides by providing a dovetail recess 26 in the upper end of the rotating plate 21. 2 engaging portions 25 are formed on the inner side of the top plate 15 at the position opposite to the lower end of the rotating lever 13, and the projections 27 are fitted, and the concave portion 26 is engaged with the central portion. The liquid ejector according to claim 2, wherein the liquid ejector is a second engaging portion comprising a pair of through holes 29 defining a protrusion 28. The first engagement portion 24 is a first engagement portion configured as a projection 27 having an arcuate front view whose upper surface protrudes upward and having an engagement projection 30 on the upper portion. A through hole is formed in the inner portion of the top plate 15 at the position opposite to the lower end of the rotating lever 13 and the engaging protrusion 30 is fitted over the rear surface of the top plate 15 at the edge to engage the protrusion 27. The liquid ejector according to claim 2, wherein the liquid ejector is a second engaging portion configured as 29. The liquid ejector according to claim 2, wherein the locking surface (18) is a curved surface having an arc-like front view shape in which the upper and lower edges of the rotating plate (13) can slide.

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