JP2001104845A - Trigger system liquid jetting vessel serviceable both in erected and inverted position - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent leakage of a liquid in a suction pipe when a trigger system liquid jetting apparatus serviceable both in the erected and inverted position is taken out of a vessel body and is mounted on a stand or the like in order to replenish the liquid. SOLUTION: A plurality of holes 9 for ventilation are provided near a lower end of the suction pipe 7 hanging from a lower surface of the liquid jetting apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trigger type liquid ejection container for both upside down use.

[0002]

2. Description of the Related Art As disclosed in, for example, Japanese Utility Model Application Laid-Open No. 1-69658, there is known a trigger type liquid ejection container which can be used both upside down. The container is provided with a liquid suction mechanism for inversion at the top of a suction pipe of a trigger type liquid ejection container used in an upright state, which is widely known and used in the related art. In the upright state, liquid is sucked up from the conventional suction pipe, and only when it is inverted, it is provided so that the liquid is sucked through the inverted liquid suction passage provided in its mechanism. is there.

The mechanism has an erecting air suction prevention valve in the middle of the suction passage to prevent the in-container air above the liquid level from being sucked when the inverted liquid suction passage is upright. The valve is provided so as to open when the container body is inverted. The valve must be closed when the container body is upright, and must be opened when the container body is upside down. Therefore, the valve is formed by a ball valve that opens and closes by its own weight.

[0004]

The present inventor has discovered that the above-described trigger-type liquid ejection container for both upside-down use has a disadvantage that the conventional trigger-type liquid ejection container for upright use does not have.

[0005] The disadvantages are as follows.

[0006] In general, not only the trigger type but also the pump type liquid ejection container, when the liquid in the container is reduced by the ejection of the liquid, the ejector main body is detached from the container body to replenish the liquid, and then remounted after the liquid is replenished. When the ejector main body is removed from the container body and placed on a table or the like as described above, the air suction prevention valve described above is a ball valve type, so the valve is opened, so that the liquid in the suction pipe is filled in the valve hole. Through the inside of the mounting cylinder for screwing to the outer surface of the mouth and neck of the container body, and the liquid in the mounting cylinder leaks along the outer surface of the mouth and neck of the container body when the ejector body is remounted.

[0007] Originally, a suction valve was provided on the suction pipe side of the liquid discharge path in the ejector body, and a discharge valve was provided on the nozzle side, and the discharge valve was provided in the middle of the liquid discharge path. The valve is opened so as to open when the pressure in the cylinder is increased and close when the high pressure is released.In the case of a trigger type liquid ejection container for erecting, the suction pipe is kept down as described above. Even if the ejector body is removed from the container body and placed on a table, etc., since the discharge valve is closed between the upper end of the suction pipe and the nozzle, only the lower end of the suction pipe should be open. Then, since there is no inlet for the replacement air into the suction pipe, and because the suction pipe has a small diameter, the lower end opening remains closed due to the surface tension of the liquid in the suction pipe. , Mount the ejector body as described above Also be placed into such wicking pipe liquid does not leak. However, in the case of a trigger type liquid ejector for both upside-down use, the above-mentioned ball valve type erecting air suction valve is provided at the top of the suction pipe. there were.

According to the present invention, the ejector body is detached from the container body for replenishment of the liquid as described above, and is lifted upward. When the lower end of the suction pipe leaves the liquid level in the container body, the suction pipe is replaced with the suction pipe. The air is supplied so that the liquid in the pipe flows back into the container and does not leak out.

[0009]

As the first means, a mounting cylinder 5 rotatably suspended from the lower outer surface of the ejector body 4 is removably fitted to the outer surface of the neck of the container 1 and the ejector. A trigger-type liquid ejection container for both forward and inverted use, in which a suction pipe 7 is hung down from the lower part of the main body to the bottom of the container, and an inverted liquid suction mechanism 6 is provided above the suction pipe. A plurality of through holes 9 for air replacement were formed in the lower part of the suction pipe 7 near the lower end opening 8 of the suction pipe 7.

As a second means, the above-mentioned first means is provided, and each area of the air replacement through hole 9 is defined by the suction pipe 7.
The area of the lower end opening 8 is set to one half or more.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Is a container body, which is formed by extending the front part of the body 2 forward. The main body of the container has the mouth and neck 3 standing upright from the upper end of the body with a small diameter at the top.

A mounting cylinder 5 rotatably suspended from the lower end of the main body 4 of the trigger type liquid ejector for both forward and inverted use is screwed to the outer surface of the mouth and neck of the container body. From the lower portion of the main body of the liquid ejector, a suction pipe 7 is drooped long via a liquid suction mechanism 6 for inverting, and a middle part of the pipe in the up-down direction is bent forward so that a lower end thereof is a container body. It hangs down to the bottom of the front. The forward bend does not necessarily have to be performed, and may be vertically suspended as shown by a two-dot chain line. In addition, a plurality of through holes 9 for air replacement are formed in the lower part of the pipe near the lower end opening 8 of the pipe. The area of each of the through holes is at least half the area of the opening at the lower end of the pipe, preferably at least 1.5 times.

The inverted liquid suction mechanism 6 is formed of an upper member, a middle member and a lower member in the illustrated example.

Prior to the description of these members, first, a brief description will be given of the lower inner portion of the ejector body into which the upper member is fitted. Reference numeral 11 denotes an outer cylinder of a vertical main cylinder 12 having a cylinder and an injection cylinder. A base cylinder 13 is suspended from the bottom of the ejector body around the lower end opening of the outer cylinder. Further, an inner cylinder 15 formed by an upper portion of the connecting member 14 is fitted into the outer cylinder 11, and an upper part is fitted to the inner surface of the base cylinder 13 from a first outward flange 16 attached to the lower part of the inner cylinder. The connecting cylinder 17 is hung down, and the base cylinder 13
The lower end surface is placed, and the inward flange 5a at the upper end of the mounting cylinder 5 is rotatably engaged with the upper surface of the outer peripheral portion of the second outward flange 18. The inner cylinder 15 of the connecting member 14 has a suction valve on the inner surface below the communication hole to the cylinder, and a discharge valve that is normally elastically closed on the inner surface below the communication hole for the injection cylinder and opens when the pressure in the cylinder is increased.

The upper member 21 is fitted in the lower part of the above-described inner cylinder 15 so that the upper part of the third passage cylinder 23, which rises through the rear part of the top plate 22, is fitted into the lower part of the above-mentioned inner cylinder 15. And the surrounding wall 24 is hung down. An inverted liquid suction hole 25 is formed in the upper part of the large diameter portion at the front of the peripheral wall, and a guide plate 26 described later is vertically provided on the inner surface of the peripheral wall portion having the suction hole.

The middle member 31 is formed by fitting an upper half portion of the second passage tube 32 to a lower outer surface of the third passage tube 23 of the upper member, and is provided with an outward flange formed at a lower end of the second passage tube 32. The short cylinder 34 is hung down from the outer periphery of the top plate 33, and the short cylinder is fitted into the inner surface of the lower part of the above-described member peripheral wall 24 below the liquid suction hole 25. Its top plate
33 is attached eccentrically forward with respect to the second passage tube 32,
A recess 35 is provided at the front of the top plate, and a valve hole 36 is formed at the front of the bottom plate of the recess, and the ball valve 37 is placed in the recess. The upper portion of the recess is formed in a valve chamber 38 surrounding the periphery, and the rear surface of the guide plate 26 forms a guide surface for vertically moving the ball valve 37. The valve hole 36 and the ball valve 37 form an erecting air suction preventing valve 39.

The lower member 41 has a fitting tube 42 fitted to the lower inner surface of the upper member peripheral wall 24 rising from the outer periphery of the bottom plate 43, and the upper portion of the first passage tube 44 penetrating the rear portion of the bottom plate is connected to the second passage tube. The lower end communicates with the lower end, and the front part of the upper part of the first passage cylinder is cut out 45 to communicate the valve hole 36 and the upper part of the first passage cylinder 44. First
An inward flange is provided on the inner surface of the passage tube 44, and the upper portion of the suction pipe 7 is fitted into the first passage tube portion below the flange.

In the illustrated example, the lower surface of the bottom plate 43 of the lower member 41 is provided so as to be substantially flush with the lower end surface of the mounting cylinder 5. The inverted liquid suction hole 25 is formed by the first outward flange of the connecting member 14. 16 and the lower member bottom plate 43 are provided in the middle in the vertical direction.

When the trigger-type liquid ejection container having the above-described configuration is in the container upright state, as shown in FIG. 2, the liquid suction hole 25 for inversion use passes through the valve hole 36 and the notch 45 to form the first member 41 of the lower member 41. The inverted liquid suction passage communicating with the upper portion of the one-passage cylinder 44 is the liquid suction passage even when the inverted liquid suction hole 25 is above the liquid level in the container by closing the valve hole 36 with the ball valve 37. Air is not sucked through the suction pipe 7, and thus the suction pipe 7,
The first, second, and third passage cylinders 44, 32, and 23 are sucked into the cylinder through the suction valve, and the suction valve closes due to a high pressure caused by the retraction of the plunger in the cylinder due to the trigger pull.
The discharge valve opens, and the liquid in the cylinder is ejected from the nozzle at the front end of the injection cylinder.

When the container body is inverted, the lower end of the suction pipe 7 is exposed above the liquid surface, but the ball valve 37, which has closed the middle of the liquid suction passage for inversion, moves downward (upward when erected) by its own weight. The liquid in the container is sucked into the cylinder through the passage, and the liquid in the cylinder is ejected from the nozzle 10 through the passage.

When the container is returned from the inverted state to the upright state, the ball valve 37 descends again to close the valve hole 36, thereby preventing air from being sucked in the upright state.

In the above-mentioned two-way trigger type liquid ejection container, when the mounting cylinder 5 is unscrewed from the container body neck and neck 3 and the ejector main body 4 is pulled up to replenish the liquid into the container, a suction pipe is provided. 7 When the lower end separates from the liquid inside the container,
Air enters the suction pipe 7 through the air replacement through-hole 9, and the liquid contained in the suction pipe flows down from the opening 8 at the lower end of the pipe.

[0023]

The present invention has the above-mentioned construction, and in the case of a trigger type liquid ejecting container for dual use of upside-down, air suction for erecting is prevented in the middle of the liquid suction passage for inverting provided above the suction pipe. A valve is provided to close the passage when the container is upright, and to open when the container is upside down, so that the ejector body is removed from the container body and placed on a table or the like. Although the above valve should be opened and the liquid in the suction pipe should leak, in the present invention, since the suction pipe is provided with a plurality of air replacement through-holes, the ejector body is pulled up above the container body. When the replacement air flows into the suction pipe at the same time that the lower end of the suction pipe leaves the liquid level, the liquid in the pipe can flow down from the opening at the lower end of the pipe. Is sucked when placed on a table etc. It is possible to prevent the type within the liquid flows out.

Further, since all of the through holes for air replacement are formed in the lower part of the suction pipe, a considerable amount of the through holes are still formed in the container body as in the case where the through holes are provided in the middle part of the suction pipe. Regardless of the remaining liquid, the through hole is not exposed above the liquid surface, and the liquid cannot be sucked up.

Further, it is conceivable that the opening of the lower end of the suction pipe is small due to contact with the inner wall surface of the bottom of the container body or the like, so that the liquid suction may be incomplete. Since the liquid is also a suction port, the liquid suction amount does not become insufficient.

According to a second aspect of the present invention, the area of each of the through holes is set to be at least half of the opening area of the lower end of the pipe, so that the air can quickly flow into the suction pipe and the liquid in the pipe is discharged. Can be reliably and easily performed.

[Brief description of the drawings]

FIG. 1 is a side view of a container according to the present invention with a part cut away.

FIG. 2 is an enlarged sectional view of a main part of FIG. 1;

[Explanation of symbols]

7 ... suction pipe 8 ... lower end opening 9 ... through-hole 25 ... inverted liquid suction hole 39 ... erect air suction prevention valve

Claims (2)

[Claims] 1. A mounting cylinder 5 rotatably suspended from an outer surface of a lower part of an ejector main body 4 is detachably fitted to an outer surface of a neck of a container body 1 and a suction pipe is inserted from a lower part of the ejector main body. 7 is provided to the bottom of the container body, and a liquid suction mechanism 6 for inversion is provided above the suction pipe. Characterized in that a plurality of through-holes 9 for air replacement are formed in the lower part of the pipe in close proximity to the pipe. 2. The trigger type liquid jet according to claim 1, wherein the area of each of the air replacement through holes 9 is at least half the area of the lower end opening 8 of the suction pipe 7. container.