JP4004746B2 - Aerosol liquid ejection container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an aerosol-type liquid ejection container.
[0002]
[Prior art]
The top of the container body is erected from the top of the container body by penetrating the top wall of the container body, and the lower part of the nozzle communicating cylinder suspended from the pressing head with the nozzle is fitted to the upper part of the stem. The lower part of the outer peripheral wall suspended from the outer peripheral part of the pressing head is fitted into the upper part of the surrounding cylinder that is raised by fitting the lower cylindrical part to the outer surface, and the pressing head is pressed down against the container body and the surrounding cylinder. Aerosol-type liquid containers are widely available on the market where the discharge valve provided at the lower part of the stem is opened so that the liquid in the container can be ejected outward through the stem, the nozzle communication tube and the nozzle.
[0003]
[Problems to be solved by the invention]
The present invention provides the above conventional container with a lock mechanism and a gas venting mechanism that is used when the container is discarded, so that the push-down head is not inadvertently pushed and liquid is not ejected. It is provided to prevent accidents caused by gas explosions in waste collection vehicles.
[0004]
[Means for Solving the Problems]
As a first means, the stem 5 is erected from the top of the container body by penetrating through the top wall of the container body, and suspended from the pressing head 11 with the nozzle 13 to the top of the stem. The outer peripheral wall 15 suspended from the push-down head 11 can be lowered to the upper inner surface of the surrounding cylinder 21 that is fitted with the nozzle communication cylinder 12 and fitted with the lower cylinder portion to the upper outer surface of the container body. And the push-down head 11 is pushed down against the container body and the surrounding cylinder 21 against the urging, so that the discharge valve provided at the lower end of the stem 5 is opened and the liquid in the container is In the nozzle communication tube, the aerosol type liquid ejection container that can be ejected through the nozzle,
The engaging plate 16 is suspended from a part of the pressing head 11, and the lower portion of the engaging plate is loosely inserted into the through hole 26 of the inward flange 25 attached to the lower inner surface of the surrounding cylinder 21, and the engaging plate A hook 17 is provided on the lower side surface of the, and a notch 18 is provided on the lower side surface on the side not having the hook
The hook 17 is engaged with the lower surface of the peripheral edge of the through-hole 26 by turning the pressing head 11 or the surrounding cylinder 21 with respect to the container body from the state where the pressing head is pressed down to almost the lower limit against the bias. The pressing head can be positioned almost at the lower limit, and the lower surface of the notch 18 is made through-holes by turning the pressing head or the surrounding cylinder 21 from the state where the pressing head is positioned at the upper limit. 26. The pressing head 11 cannot be lowered with respect to the inward flange 25 by being placed on the upper surface of the peripheral edge.
[0005]
As a second means, the first means is provided, the engaging protrusion 19 is erected from the tip of the hook 17, and the stopper 27 is provided from the side edge of the through hole 26 on the side from which the hook 17 protrudes. The engaging protrusion 19 is formed so as to be engageable with the stopper 27 by the rotation of the pressing head or the surrounding cylinder 21 at the time of pressing down.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Referring to the drawings, reference numeral 1 denotes a known aerosol container body. The container body stands up from the upper end of the body 2 with a shoulder 3 having a slender shape, and the upper end of the shoulder and the outer periphery of the top wall that closes the upper surface of the container body. Both are tightened 4, and the central portion of the top wall is penetrated, and the stem 5 is urged upward from the inside of the upper portion of the container body to stand. A discharge valve is provided at the lower end of the stem, and the liquid in the container can be ejected through the stem when the stem is pushed down against the bias.
[0007]
Reference numeral 11 denotes a push-down head. The head is bent from the upper end of the nozzle communication cylinder 12 fitted to the upper portion of the stem 5 to the outside of the nozzle 13, and the nozzle upper cylinder portion excluding the tip part is the front wall front part. The top wall 14 is provided in common, and the outer peripheral wall 15 is suspended from the outer periphery of the top wall. An engagement plate 16 for forming the above-described lock mechanism and gas venting mechanism is suspended from the lower end of the rear portion of the outer peripheral wall. The engagement plate will be described later.
[0008]
21 is a surrounding cylinder in which the lower cylinder part is fitted to the upper outer surface of the container body 1 and is an inner / outer double cylinder with the upper surface closed and the lower surface opened, and the upper half of the front part of the double cylinder is a single cylinder only It is a cylinder and the nozzle lower part of the single cylinder part is notched. The lower end of the inner cylinder 22 is fitted to the outer surface of the tightening portion of the container body described above, and the engaging protrusion 23 provided around the inner surface of the lower end is engaged with the lower surface of the tightening 4 so that the surrounding cylinder 21 is pulled out upward. The lower end of the outer cylinder 24 is in contact with the upper surface of the shoulder 3 of the container body. Further, an inward flange 25 is attached to the middle part of the inner cylinder 22 in the vertical direction, and the lower part of the nozzle communication cylinder 12 is loosely inserted into the flange hole. Further, a through hole 26 is formed in the rear portion of the inward flange, and the lower end portion of the engagement plate 16 is loosely inserted as shown in FIG.
[0009]
As shown in FIG. 3, the aforementioned engaging plate 16 projects a hook 17 from one side below the engaging plate, and a notch 18 is provided at the lower portion of the engaging plate on the side not having the hook, as shown in FIG. The upper surface of the notch 18 is pushed to the upper surface of the inward flange portion on the side of the through-hole 26 by rotating the push-down head 11 from the upper limit position with respect to the surrounding cylinder 21, and from the state shown in FIG. The hooks 17 are provided so as to engage with the lower surface of the peripheral portion of the through hole by pressing down the lowering head to almost the lower limit and turning the lowering head in the direction opposite to the rotation direction.
[0010]
By engaging the upper surface of the notch 18 with the upper surface of the side of the through-hole 26, the push-down head can be locked, that is, cannot be pushed down. Degassing can be performed by engaging with the lower surface of the peripheral portion.
[0011]
When the degassing operation is performed, when the push-down head 11 is pushed down to the lower limit and rotated, the coil spring that urges the stem 5 upward is twisted, and the restoration results in the periphery of the through hole. The hook 17 engaged with the lower surface of the part may come off the lower surface again.
[0012]
In such a case, as shown in FIG. 6 to FIG. 8, the engaging projection 19 is raised from the tip of the hook, and the stopper 27 is suspended from the periphery of the through hole 26 on the hook projection side, It is preferable that the engaging protrusion 19 is provided so as not to be engaged with the stopper 27 and disengaged when pushed down and rotated.
[0013]
In the illustrated example, the engagement plate 16 is suspended from the lower surface of the rear portion of the pressing head outer peripheral wall 15. However, the engaging plate 16 may be suspended from the lower surface of the outer portion of the outer peripheral wall, or may be suspended from the lower surface of the top wall of the pressing head. Also good. In this case, the through hole 26 is formed below the engagement plate.
[0014]
In the above configuration, when the liquid in the container is ejected from the state of FIG. 1, as shown in FIGS. 3 and 6, the notch 18 and the hook 17 are provided so as to be positioned above or in the through hole 26 as they are. The pressing head 11 may be pressed down. Then, the push-down head 11 is pushed down to the lower limit against the bias of the stem 5 and the discharge valve at the lower end of the stem is opened, so that the liquid in the container passes through the stem 5, the nozzle communication cylinder 12, and the nozzle 13 to the outside. To erupt.
[0015]
When the pressing head is locked so that the pressing head cannot be pressed, the pressing head or the surrounding cylinder 21 is turned with respect to the container body from the state where the pressing head 11 is located at the upper limit shown in FIGS. 4 and 7, the notch upper surface of the engagement plate 16 is engaged with the upper surface of the inward flange portion on the side of the through hole 26, and in this state, the pressing head 11 cannot be pressed down.
[0016]
When the liquid in the container is exhausted and the container body is discarded, the pressing head 11 is pushed down to a substantially lower limit from the position where the pushing head is located at the upper limit, and the container body as shown in FIGS. By rotating the pressing head 11 or the surrounding cylinder 21 in the direction opposite to the above, the hook 17 is brought into contact with the lower surface of the peripheral portion of the through hole 26 or the lower surface of the stopper 27 to engage the engaging protrusion 19 with the stopper 27. Since the discharge valve provided at the lower end portion of the stem 5 is open at the lower limit position of the pressing head, the gas in the container continues to be discharged until it disappears through the stem 5, the nozzle communication cylinder 12 and the nozzle 13.
[0017]
【The invention's effect】
Since the present invention is configured as described above, according to the first aspect of the present invention, it is possible to prevent the pressing head from being pressed down and prevent the liquid in the container from being inadvertently ejected. It can be removed and the operation can be performed easily.
[0018]
According to the second aspect, the hook 17 is not detached from the stopper 27 during the gas venting, and the gas venting is not interrupted, so that all the gas in the container body can be surely released.
[Brief description of the drawings]
FIG. 1 is a side view of a container of the present invention having a cross section of a main part.
FIG. 2 is an exploded side view of a pressing head as a container main member and an enclosing cylinder.
FIG. 3 is an enlarged cross-sectional view of a main part shown in a state where the pressing head can be pressed down.
FIG. 4 is an enlarged cross-sectional view of the main part, showing a state in which the pressing head cannot be pressed down.
FIG. 5 is an enlarged cross-sectional view of a main part shown in a degas state.
FIG. 6 is an enlarged cross-sectional view of a main part at a position where the pressing head can be pressed down according to another embodiment.
7 is an enlarged cross-sectional view of a main part in a state in which the pressing head cannot be pressed from the state shown in FIG.
FIG. 8 is an enlarged cross-sectional view of a main part in a state in which the depressing head is pushed down and degassed from the state of FIG. 6;
[Explanation of symbols]
5… Stem 11… Pressing head
12 ... Nozzle communication tube 16 ... Engagement plate
17 ... Hook 18 ... Notch
21 ... Ground tube 26 ... Through hole

Claims (2)

The stem 5 is erected from the top of the container body by penetrating through the top wall of the container body, and the nozzle communication cylinder 12 suspended from the pressing head 11 with the nozzle 13 is fitted to the top of the container body. In addition, the outer peripheral wall 15 suspended from the pressing head 11 is fitted to the upper inner surface of the surrounding cylinder 21 that is raised by fitting the lower cylindrical part to the upper outer surface of the container body, By pushing down the pressing head 11 against the container body and the surrounding cylinder 21 against the bias, the discharge valve provided at the lower end of the stem 5 opens, and the liquid in the container causes the stem, the nozzle communication cylinder, and the nozzle to open. In an aerosol-type liquid ejection container that can be ejected through,
The engaging plate 16 is suspended from a part of the pressing head 11, and the lower portion of the engaging plate is loosely inserted into the through hole 26 of the inward flange 25 attached to the lower inner surface of the surrounding cylinder 21, and the engaging plate A hook 17 is provided on the lower side surface of the, and a notch 18 is provided on the lower side surface on the side not having the hook,
The hook 17 is engaged with the lower surface of the peripheral edge of the through-hole 26 by turning the pressing head 11 or the surrounding cylinder 21 with respect to the container body from the state where the pressing head is pressed down to almost the lower limit against the bias. The pressing head can be stopped at substantially the lower limit, and the lower surface of the notch 18 is made through-hole by turning the pressing head or the surrounding cylinder 21 from the state where the pressing head is positioned at the upper limit. 26. An aerosol-type liquid ejection container, which is placed on the upper surface of the peripheral edge portion and makes it impossible for the pressing head 11 to descend with respect to the inward flange 25. The engaging protrusion 19 is erected from the tip of the hook 17, and the stopper 27 is suspended from the side edge of the through hole 26 on the side from which the hook 17 protrudes. The aerosol-type liquid ejection container according to claim 1, wherein the engagement protrusion 19 is formed so as to be engageable with the stopper 27 by the rotation.

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