JP4386245B2 - Delami bottle with vertical pump - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a delami bottle with a vertical pump.
[0002]
[Prior art]
A cylinder is suspended from the mounting cylinder screwed into the outer surface of the mouth and neck of the Delami bottle, and the liquid in the bottle is moved to the lower end by the vertical movement of the actuating member that is erected upward from the inside of the Delami bottle. There is known a delami bottle with a vertical pump that sucks into a cylinder through a provided suction portion and discharges the liquid in the cylinder from a nozzle of a pressing head at the upper end of an operating member (see, for example, Patent Document 1). .
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-16473
[Problems to be solved by the invention]
In the above conventional example, liquid was sucked into the cylinder from the delami bottle via the sucking pipe suspended from the lower end of the cylinder as in the case of the bottle with the vertical pump at first. When the flexible inner bottle forming the inner layer shrinks due to a decrease in the stored liquid, the suction port at the lower end of the suction pipe is blocked, which may make it impossible to operate the pump while leaving the liquid in the inner bottle. It was. In order to eliminate such defects, the suction pipe is removed and the suction member is fitted to the lower outer surface of the cylinder as in the conventional example. In this case, the viscosity of the stored liquid is relatively high. The air in the head space at the upper end of the bottle may be sucked and discharged together with the stored liquid, so that the discharge amount is not stable, and the sucked air is discharged as bubbles. There was a problem.
[0005]
This defect is considered to be related to the structure of the suction member. That is, the suction member has a cylindrical portion on the upper side and a cross-shaped cross section on the lower side. The suction port communicating with the lower end of the inner surface of the cylindrical portion is drilled at the upper four corners of the cross-shaped portion. It was fitted to the outer surface, and a plurality of grooves were installed vertically on the outer surface of the cylinder for suctioning the stored liquid. The distance from the upper end of these grooves to the upper surface of the stored liquid is the distance from the suction port to the upper surface of the stored liquid. Therefore, it is considered that a passage from the upper end of the groove to the liquid surface is likely to occur when the stored liquid is sucked.
[0006]
Generation of such a passage can be prevented beforehand by the weight of the stored liquid if the distance is increased.
[0007]
The present invention eliminates the above-mentioned drawbacks by increasing the distance and opening the suction port to the outer periphery of the suction portion.
[0008]
In this application, the delamination bottle is formed by an outer bottle as an outer layer and a flexible inner bottle as an inner layer that is detachably layered on the inner surface of the outer bottle, and an outside air intake passage between the inner and outer bottles. At the same time as the inner bottle contracts due to the negative pressure inside the bottle, outside air flows in between the inner and outer bottles from the outside air intake passage, the inner bottle shrinks, but the outer bottle is provided to retain its original shape. say.
[0009]
[Means for Solving the Problems]
As a first means, a cylinder with a suction portion is suspended from the mounting cylinder fitted to the outer surface of the mouth and neck of the delami bottle, and the actuating member is erected upwardly from the inside of the cylinder. In the Delami bottle with a vertical pump, which is formed so that the liquid in the bottle is sucked into the cylinder through the suction part by vertical movement, and the liquid in the cylinder can be discharged from the nozzle of the pressing head at the upper end of the operating member. The suction cylinder 51 hangs down to the inside of the lower portion of the delamination bottle 1 with a gap from the bottom wall, and the lower end portion of the suction cylinder is formed in the suction portion 52, and the suction portion is a protruding wall portion. A plurality of liquid inlets 55 were formed in the outer diameter surface of the overhanging wall portion and the large diameter portion .
[0010]
As a second means, a cylinder with a suction portion is suspended from the mounting cylinder fitted to the outer surface of the mouth and neck of the delami bottle, and the actuating member is erected upwardly from the inside of the cylinder. In the Delami bottle with a vertical pump, which is formed so that the liquid in the bottle is sucked into the cylinder through the suction part by vertical movement, and the liquid in the cylinder can be discharged from the nozzle of the pressing head at the upper end of the operating member. The suction cylinder 51 hangs down to the bottom of the delamination bottle 1 with a space between the bottom wall and the lower end of the suction cylinder is formed in the suction part 52, and the suction part is formed as a separate member. Then, the large-diameter cylindrical portion 58 with the lower end opening is suspended from the lower end of the small-diameter cylindrical portion 57 that is tightly fitted to the lower outer surface of the suction cylinder 51, and a plurality of liquid flows to the outer peripheral surface of the large-diameter cylindrical portion. Entrance 55 is almost equally spaced It was formed by set.
[0011]
As the third means, the suction cylinder 51 is formed to be deformable while having the first or second means.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment shown in FIG. 1 will be described below. First, a conventionally known part will be briefly described. 1 is a Delami bottle in which a mouth and neck part 4 is erected from an upper end of a trunk part 2 through a shoulder part 3, and the bottle is a rigid outer bottle 1a and the outer bottle. It is formed of a flexible inner bottle 1b that is detachably layered on the inner surface. Reference numeral 6 denotes a liquid surface, and 7 denotes a head space.
[0014]
An outer cylinder 12 of a mounting cylinder 11 is screwed to the outer surface of the mouth / neck section 4, and the mounting cylinder is provided with an inward flange 13 at the upper end of the outer cylinder 11, and the upper end of the cylinder extends from the inner periphery of the inward flange. The fitted double cylinder 14 is erected.
[0015]
The cylinder 21 has a suction cylinder fitting cylinder 22 suspended from the lower end. The cylinder 21 has a cylindrical piston 33 at the lower end of the stem 32, and the actuating member 31 having a push-down head 35 with a nozzle 34 fitted to the outer surface of the upper end of the stem is urged upward to stand up. The liquid in the bottle is sucked into the cylinder and the liquid in the cylinder can be discharged from the nozzle 34 by the vertical movement of the operating member. Reference numeral 41 denotes a poppet-like suction valve body mounted in the cylinder in order to increase the compression ratio of the pump.
[0016]
In the present invention, the suction cylinder 51 is suspended by fitting the upper part into the fitting cylinder 22. The suction cylinder has a suction part 52 at its lower end. The suction portion may have the same diameter as the suction cylinder, but it may be formed by hanging the large-diameter portion 54 through the overhanging wall portion 53 as shown in the figure. The inlets 55 are vertically arranged at substantially equal intervals, and the lower end surface of the large diameter portion is opened 56.
[0017]
Although the suction part 52 is located in the lower part of the delami bottle 1, a considerable gap is provided between the lower end surface of the suction part and the bottom wall of the delami bottle. In addition, by providing the gap and opening the lower end surface 56 of the large-diameter portion 54 as described above, and further providing a plurality of liquid inlets 55 vertically on the overhanging wall portion and the large-diameter portion, the bottom wall of the delami bottle is stored in the liquid. Will always press downward, and therefore the bottom wall of the bottle 1b will not block the lower end opening of the suction part unless the stored liquid is considerably reduced.
[0018]
FIG. 2 shows a second embodiment. The embodiment shows an example in which the suction portion 52 is formed of a separate member. In the embodiment, the suction portion 52 is suspended from the lower end of the small diameter cylindrical portion 57 to the large diameter cylindrical portion 58 of the lower end surface opening. A liquid inflow port 55 is vertically formed on the outer surface of the large-diameter cylindrical portion 58 at substantially equal intervals. The small-diameter cylindrical portion 57 is formed on the lower outer surface of the suction cylinder 51, and the upper portion of the suction cylinder 51 is extended from the lower end of the cylinder 21. Each is closely fitted to the inner surface of the fitting cylinder 22 that hangs down. In FIG. 2, the other parts are the same as in FIG. The suction cylinder is preferably formed to be elastically deformable.
[0019]
In each of the above embodiments, when the operating member 31 is moved up and down, the liquid in the bottle is sucked into the cylinder 21 through the suction cylinder 51 from the lower end opening surface of the suction portion 52 and the liquid inlet 55, and into the cylinder. The liquid thus discharged passes through the stem 32 and is discharged from the nozzle 34.
[0020]
When the liquid in the inner bottle 1b decreases due to liquid discharge, the inner bottle shrinks, and then outside air flows between the inner and outer bottles through the small through holes 5 provided at the lower end of the mouth neck of the outer bottle 1a. There is no negative pressure inside the outer bottle 1a.
[0021]
【The invention's effect】
The present invention is intended to be above configuration, even viscous storage liquid large as in the case described above prior art, it is possible to avoid the occurrence of air passage communicating the liquid inlet 55 and the headspace 7 Therefore, the air in the head space is not sucked together with the stored liquid, and neither of these is discharged from the nozzle.
[0022]
That is, since the suction cylinder 51 is suspended into the lower part of the Delami bottle and the lower end portion of the suction cylinder is formed in the suction portion 52, the distance from the liquid inlet 55 of the suction portion to the head space 7 at the upper end of the bottle is increased. Therefore, the amount of liquid stored between the distances can be increased, and the generation of the air passage can be prevented with a large liquid weight.
[0023]
Further, since a plurality of liquid inflow ports 55 are provided, even if a part of the liquid inlet 55 is blocked by the wall surface of the inner bottle, the liquid suction is not disabled. In this way, almost no liquid can be discharged into the inner bottle.
[0024]
Further, inlet portion is drilled into the flared wall portion 53, especially, can be difficult to closed by the inner bottle contraction.
[0025]
By using the second means , the position of the suction portion 52 in the bottle can be adapted simply by adjusting the length of the suction cylinder 51.
[0026]
By using the third means , the following effects are obtained. That is, when the inner bottle 1b contracts due to internal negative pressure, the low-strength wall portion is deformed inward, so that only one of the inner bottle wall portions is deformed. Therefore, if the rigidity of the suction cylinder 51 is large, the lower part of the cylinder 21 may be pressed to the other side via the suction cylinder and the pump operation may be hindered. By making the cylinder 51 deformable, even if the suction part 52 is pushed to the other side as described above, the deformation of the suction cylinder 51 can prevent an adverse effect on the cylinder.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a pump of the present invention shown in a first embodiment.
FIG. 2 is a cross-sectional view of the pump of the present invention shown in the second embodiment.
[Explanation of symbols]
1 ... Delami bottle 1a ... Outer bottle
1b ... inner bottle 7 ... headspace
11 ... Installation cylinder 21 ... Cylinder
31 ... Actuating member 35 ... Pushing head
51… Suction cylinder 52… Suction section
53 ... Overhang wall 54 ... Large diameter part
55… Liquid inlet 56… Opening
57 ... Small diameter cylinder part 58 ... Large diameter cylinder part

Claims (3)

A cylinder with a suction part is suspended from the mounting cylinder fitted to the outer surface of the mouth and neck of the delami bottle, and the liquid in the bottle is moved up and down by the actuating member vertically erected from the cylinder. In the Delami bottle with a vertical pump formed so that the liquid in the cylinder can be discharged from the nozzle of the pressing head at the upper end of the operating member, the suction cylinder 51 is The bottom of the delami bottle 1 hangs down at a distance from the bottom wall, and the lower end portion of the suction tube is formed in the suction portion 52, and the suction portion hangs down through the overhanging wall portion 53. A delami bottle with a vertical pump, characterized in that a plurality of liquid inflow ports 55 are formed on the outer diameter surface of the overhanging wall portion and the large diameter portion while being formed in the large diameter portion 54 of the lower end surface opening . A cylinder with a suction part is suspended from the mounting cylinder fitted to the outer surface of the mouth and neck of the delami bottle, and the liquid in the bottle is moved up and down by the actuating member vertically erected from the cylinder. In the Delami bottle with a vertical pump formed so that the liquid in the cylinder can be discharged from the nozzle of the push-down head at the upper end of the operating member, the suction cylinder 51 is drawn from the lower end of the cylinder 21. The lower part of the delami bottle 1 is suspended from the bottom wall with a gap, and the lower end portion of the suction tube is formed in the suction portion 52, and the suction portion is formed of a separate member. A large-diameter cylindrical portion 58 having a lower-end opening is suspended from the lower end of the small-diameter cylindrical portion 57 that is closely fitted to the lower outer surface of the 51, and a plurality of liquid inlets 55 are substantially equally spaced on the outer peripheral surface of the large-diameter cylindrical portion. Formed vertically Deramibotoru with vertical pump which is characterized the door. The delami bottle with a vertical pump according to claim 1 or 2, wherein the suction cylinder (51) is formed to be deformable.

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