JP4333864B2 - Liquid ejection container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid ejection container.
[0002]
[Prior art]
As the liquid ejection container, the container body with the mouth and neck raised from the body and the lower part of the cylinder with the upper end fixed to the mounting cap fitted to the outer periphery of the mouth and neck are suspended in the container body and protruded from the upper end of the cylinder. And a pump provided so that the operation member having the ejection head fitted and fixed to the upper end of the installed stem can be pushed in an upwardly biased state, and the liquid in the container body is sucked up by the vertical movement of the operation member from the ejection port of the ejection head What is configured to erupt is known.
[0003]
Among these types of containers, there is a container provided with an overcap in which a locking cylinder is erected from the peripheral portion of the upper surface of the mounting cap and a lower peripheral wall is detachably fitted to the outer periphery of the locking cylinder. These also include a jet head having a top-like cylindrical cover that hangs down so that the lower portion of the outer peripheral wall can be pushed down to the inner periphery of the engagement cylinder, and has an outlet opening on the outer peripheral wall surface.
[0004]
[Problems to be solved by the invention]
Since the above-mentioned liquid ejection container has an ejection port opened on the outer peripheral wall surface, it is difficult for the user to confirm the ejection direction, and the wall surface around the ejection port is easily contaminated. On the other hand, there are also used nozzles protruding from the outer peripheral wall and opening a jet outlet at the tip, which can eliminate such inconveniences, but since the installation of overcaps is not considered, The protrusion width increases as the tip reaches the outside of the mounting cap. In addition, there is an ejector head that is provided with such a nozzle, and an overcap is provided. In that case, a kerf is formed above the lower end of the peripheral wall of the overcap. The configuration is such that the overcap is mounted in a state in which the nozzle protrudes, and dust or the like enters from the kerf so that the presence of the cap itself is diminished.
[0005]
The present invention has been made in view of the above points, and in the liquid ejection container of the above form, the liquid ejection direction can be easily determined during use, and contamination in the vicinity of the ejection port can be prevented as much as possible, The present invention proposes an excellent liquid ejection container that can reliably prevent dust from adhering to the top of the pump by an overcap when not in use.
[0006]
The first means is configured as follows. That is, the locking cylinder 12 is erected from the container body 2 in which the mouth / neck part 5 is raised from the body part 4 and the outer peripheral edge of the upper surface of the mounting cap 6 fitted to the mouth / neck part 5. A jet head 14 having a cylindrical cover 16 with a top is projected from the inside of the cylinder 12 so as to be able to be pushed in an upward biased state, and the lower end of the peripheral wall 22 is fitted to the outer periphery of the locking cylinder 12 so as to be detachable. a pump 3 fitted with 9, and the outer diameter of the container body portion 4, the outer diameter of the mounting cylinder 10 of the mounting cap 6, substantially the same and the outer diameter of the peripheral wall 22 of the overcap 9, the injection head 14 is provided with at least a concave peripheral surface portion 17 in which the outer surface is recessed inwardly from the planar shape of the outer periphery of the cover 16 along the inner periphery of the locking cylinder 12 along the inner periphery of the ejection cylinder 14, the concave peripheral surface portion A nozzle 18 with a small projecting width that can be stored in the overcap 9 is provided at the top, and a spout 20 is opened at the tip. The cover peripheral wall 16b lower end portion of the injection head 14, projecting from the profiled flange 21 the outer peripheral surface thereof is lowered can close the inner locking cylinder 12 peripheral surface to fill the gap caused by the recessed peripheral surface portion 17.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
The liquid ejection container 1 of the present invention includes a container body 2 and a pump 3.
[0011]
The container body 2 is formed of a synthetic resin or the like, and is configured such that the mouth and neck portion is erected from the cylindrical body portion 4.
[0012]
The pump 3 mainly uses a synthetic resin and is formed by using a metal, an elastomer, or the like in combination as necessary. The pump 3 includes a mounting cap 6, a cylinder 7, an operating member 8, and an overcap 9.
[0013]
The mounting cap 6 is formed with a window hole through which the operating member 8 is inserted in the center of the top plate 11 extending inward from the upper end edge of the mounting cylinder 10 fitted to the outer periphery of the mouth neck portion 5. 11. A locking cylinder 12 for fitting and locking the overcap 9 is raised above the peripheral edge of the upper surface. Further, in order to fit the upper end of the cylinder 7, the inner peripheral edge portion of the top plate 11 is formed so as to be raised in a pinched double cylindrical holding portion 11 a having an open lower end. In the illustrated example, the mounting cylinder 10 has a large number of vertical ridges in the circumferential direction on the inner peripheral surface thereof, while the vertical ridges are similarly provided on the outer periphery of the mouth and neck portion 5 to engage the two. This prevents rotation. Further, the lower end of the outer periphery of the mouth / neck portion 5 is formed to have a slightly larger diameter, and the lower end of the mounting cylinder 10 is fixedly fitted to the outer periphery of the large diameter portion to prevent the upper neck portion from coming out upward.
[0014]
The cylinder 7 has an upper end clamped by the clamping portion 11a and a lower end suspended from the container body 2, and a suction valve (not shown) is built in the inner lower end.
[0015]
The actuating member 8 is mounted so as to be able to be pushed down with respect to the cylinder 7 in an upward biased state, and the ejection head 14 is placed on the upper end of the stem 13 protruding from the upper end opening of the cylinder 7 through the window hole of the mounting cap 6. It is fitted. A piston (not shown) with which the inner peripheral surface of the cylinder 7 is slidably fitted is linked to the lower end portion of the stem 13, and the operating member is always urged upward by a coil spring (not shown). Yes. In addition, a discharge valve 15 is provided in the upper part of the stem 13.
[0016]
The ejection head 14 has a crested cylindrical cover 16 and protrudes from the inside of the locking cylinder 12 so as to be pushed in an upward biased state. The ejection head 14 according to the present invention has a concave peripheral surface portion 17 at least at the outer periphery of the front portion, and a nozzle 18 having a small projecting width that can be accommodated in the overcap 9 projects from the concave peripheral surface portion 17. The recessed peripheral surface portion 17 has a shape in which the outer surface is recessed inward from the planar shape of the outer periphery of the cover 16 along the inner periphery of the locking cylinder 12, and is formed to have a recessed width capable of maintaining the protruding width of the nozzle 18. . The shape is not particularly limited as long as the above requirements are satisfied, but in the embodiment of FIG. 1, the cylindrical cover outer peripheral surface is shifted backward as an outer peripheral surface with a small radius, as shown in FIG. In the embodiment shown in FIG. 6 , a part of the front part is formed as an outer peripheral surface having a large curvature radius, but the present invention is not limited to this.
[0017]
The protrusion width of the nozzle 18 is not particularly limited as long as it can be accommodated in the overcap 9 as described above. However, if the protrusion width d is 1 mm or more, it can function sufficiently as a mark in the ejection direction, This prevents the liquid from adhering to the wall surface as much as possible.
[0018]
In the illustrated example, a vertical cylinder 19 fitted to the upper end of the stem 13 is suspended from the back surface of the cover top wall 16a, a cover peripheral wall 16b is suspended from the periphery of the cover top wall 16a, and The front end of the nozzle 18 having an open end is passed through the front portion of the cover peripheral wall 16b of the recessed peripheral surface portion 17, and a jet port 20 is opened at the front end.
[0019]
Further, the lower end of the outer periphery of the cover 16 of the ejection head 14 may be configured to be close to the inner periphery of the locking cylinder 12 so as to be lowered. With this configuration, dust can be prevented from entering the locking cylinder 12 during use, and as a result, dust and the like can be prevented from entering the cylinder 7 as much as possible. As a specific example, as shown in the illustrated example, a deformed flange 21 in which the outer peripheral surface of the cover peripheral wall 16b is close to the inner peripheral surface of the locking cylinder 12 so as to be close to the lower end of the outer periphery of the cover peripheral wall 16b. This can be done by projecting.
[0020]
The overcap 9 has a cylindrical shape with a lower end opening in which the lower end of the peripheral wall 22 is fitted to the outer periphery of the locking cylinder 12 so as to be detachable and the top wall 23 extends from the upper end edge of the peripheral wall 22.
[0021]
The liquid ejection container 1 configured as described above is configured such that the liquid is ejected from the ejection port of the head 14 by the action of the internal organ pump mechanism by removing the overcap 9 and pushing down the ejection head 14.
[0022]
In addition, although the said Example demonstrated regarding the container provided with the overcap, the container without an overcap is also contained in this invention liquid ejection container. For example, in the container of FIG. 1, there is no overcap, and the ejection head 14 is provided with a concave peripheral surface portion 17 at least at the outer periphery of the front portion, and a nozzle 18 is projected from the concave peripheral surface portion and an outlet 20 is opened at the tip thereof. The thing which was done is mentioned. Other configurations are the same as those of the embodiment of FIG.
[0023]
【The invention's effect】
As described above, since the liquid ejection container according to the present invention has the above-described configuration, there is no possibility of causing inconveniences such as catching because the projection width of the nozzle is small. On the other hand, the ejection direction is easily understood due to the presence of the nozzle. There are advantages such as prevention of inconvenience such as adhesion of the jet liquid to the wall surface around the jet outlet.
[0024]
In addition , when not in use , an overcap can be attached to prevent dust from adhering to the top of the pump as much as possible, resulting in problems such as clogging of the nozzle opening and malfunction of the ejection head as much as possible. It can be prevented. Further, at the time of use, the ejection direction becomes obvious at a glance due to the presence of the protruding nozzle, and inconveniences such as adhesion of the ejection liquid to the wall surface around the ejection outlet can be prevented. Further, since it can be obtained by only partially changing the form of the ejection head as compared with the conventional product, it has the advantage of being easily and inexpensively manufactured without the complexity of manufacturing.
[0025]
Also, combines the advantage of the intrusion of dust or the like from between in locking cylinder and cover peripheral wall of the injection head can be more reliably prevented during use.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view showing an embodiment of the present invention.
FIG. 2 is a plan view showing the ejection head of the same embodiment.
FIG. 3 is a half sectional view showing the ejection head of the same example.
FIG. 4 is a bottom view showing the ejection head of the same embodiment.
FIG. 5 is a longitudinal sectional view showing the ejection head of the same example.
FIG. 6 is a plan view showing another example of the ejection head of the present invention.
[Explanation of symbols]
2 ... container body, 3 ... pump, 4 ... trunk, 5 ... mouth neck, 6 ... mounting cap,
9 ... Overcap, 12 ... Locking cylinder, 14 ... Ejection head, 16 ... Cover,
17 ... Dimple peripheral surface, 20 ... Jump, 21 ... Deformed flange,
22… Overcap wall

Claims (1)

The locking cylinder 12 is erected from the container body 2 in which the mouth / neck part 5 is raised from the body part 4 and the outer peripheral edge of the upper surface of the mounting cap 6 fitted to the mouth / neck part 5. The ejecting head 14 having a crested cylindrical cover 16 is protruded so as to be pushed in from above, and the lower end portion of the peripheral wall 22 is fitted to the outer periphery of the locking cylinder 12 so that the overcap 9 is detachable. a pump 3 mounted, the outer diameter of the container body portion 4, the outer diameter of the mounting cylinder 10 of the mounting cap 6, and an outer diameter of the peripheral wall 22 of the overcap 9 are substantially the same, the injection head 14 is The discharge head 14 is vertically cut, and at least the front outer periphery is provided with a concave peripheral surface portion 17 in which the outer surface is recessed inward from the planar shape of the outer periphery of the cover 16 along the inner periphery of the locking cylinder 12, and is over the concave peripheral surface portion. A nozzle 18 having a small projecting width that can be accommodated in the cap 9 is projected, and a spout 20 is opened at the tip thereof. At the lower end of the cover peripheral wall 16b of the exit head 14, a deformed flange 21 is provided so as to project the outer peripheral surface close to the inner peripheral surface of the locking cylinder 12 so that it can be lowered by filling the gap by the concave peripheral surface portion 17. Characteristic liquid ejection container.

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