JP3822398B2 - Pump type liquid dispensing container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pump type liquid dispensing container.
[0002]
[Prior art]
[0003]
[Problems to be solved by the invention]
A pump-type liquid dispensing container formed so as to discharge the contents stored in the container from the nozzle of the pressing head by pressing and releasing the pressing head is well known. As described, a container in which a bag-like inner container body filled with a liquid is accommodated in a container body, and a mouth portion of the inner container body is attached to an outer surface of a cylinder of a pump is known. There is an advantage that the stored liquid does not touch the outside air.
[0004]
In the latter case of the above conventional example, since it is more convenient if the inner container body can be replaced, there is also a known example formed so that the inner container body can be replaced, but the replacement of the inner container body is troublesome, Or the structure was complicated and the cost was high.
[0005]
The present invention is provided so that the inner container body can be easily replaced and the mouth of the inner container body can be reliably sealed.
[0006]
[Means for Solving the Problems]
As a first means, a container body 1 that erects the first peripheral wall 3 from the outer periphery of the bottom wall 2;
A second peripheral wall 12 suspended from the outer periphery of the cap top wall 11 is fitted to the outer surface of the upper end portion of the first peripheral wall 3 of the container body, and an upper end cylinder is formed on the inner surface of the through hole 14 drilled in the central portion of the top wall 11. A pump member 20 with a cap that is erected by causing the cylinder 21 to hang down with the portion fixed, and by urging the actuating member 30 with a nozzle upward from the inside of the cylinder;
A suction pipe 50 that is slidably fitted into the lower outer surface of the cylinder 21 and has a suction hole 53 in the pipe wall;
The lower cylinder part is fixed to the upper outer surface of the suction pipe and the upper cylinder part is fixed to the outer surface of the cylinder part above the suction pipe 50, and the intermediate cylinder part between the upper and lower cylinder parts is A seal tube 60 provided with a bellows-shaped tube portion 63;
The suction pipe 50 is inserted into the body portion 71, and the bellows-like cylindrical portion 63 is positioned inside the rigid neck portion 72 so as to be housed in the container body 1. A flexible sheet 70 formed of a flexible sheet and filled with liquid inside,
When the second peripheral wall 12 of the pump member 20 with the cap is screwed to the first peripheral wall 3 of the container body to the lower limit and tightened,
With the lower end of the suction pipe 50 in contact with the inner surface of the bottom wall 2 of the container body through the bottom wall portion of the flexible container,
The cylinder 21 descends with respect to the suction pipe 50 and elastically compresses the seal cylinder 60 in the cylinder direction, so that the large outside diameter portion 63a of the bellows-like cylinder portion 63 becomes large and the large outside diameter is increased. The outer surface of the diameter portion was formed so as to be able to press-contact with the inner surface of the flexible container mouth / neck portion 72 in a watertight manner.
[0007]
As the second means, the first means is provided, the mouth tube 16 is erected from the periphery of the through hole 14 of the cap top wall 11, and the upper portion of the cylinder 21 through which the mouth tube 16 is inserted into the upper surface of the mouth tube. Mount the cylinder 21 to the cap 10 by engaging the inward flange 81 at the upper end of the mounting cylinder 80 on which the outward flange 22 is placed and screwed into the outer surface of the mouth cylinder 16 with the upper surface of the outward flange 22 ,
Also, a plurality of guide plates 17 are suspended from the lower surface of the top wall portion around the mouth tube 16, and the inscribed circle formed by the inner side surfaces of these guide plates is set to be approximately the same diameter as the cylinder 21 outer diameter. 21 is inserted,
Further, at least the inner part lower surface of the lower surface of each guide plate 17 is used as the upper inward inclined surface 17a, and the upper surface portion of the flexible container mouth / neck portion 72 is brought into contact with these inclined surfaces.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show a first embodiment of the container of the present invention. The container according to this embodiment includes a container body 1, a pump member 20 with a cap, a suction pipe 50, a seal cylinder 60, and a flexible container 70. The main body 1 has a first peripheral wall 3 erected from the periphery of the bottom wall 2, and a small protrusion 4 is provided on the upper surface of the central portion of the bottom wall 2.
[0009]
The pump member 20 with a cap includes a cap 10 that closes the upper surface of the first peripheral wall 3 of the container body, and a pump member 20 attached to the cap. The cap 10 is formed from the outer periphery of the top wall 11 that is inclined downward and outward. A second peripheral wall 12 is suspended, the inner surface of the second peripheral wall is screwed to the outer surface of the upper end portion of the container main body first peripheral wall 3, and the inner peripheral portion of the top wall 11 is a standing wall portion 13.
[0010]
The pump member 20 includes a cylinder 21 and an actuating member 30 with a nozzle, and the cylinder 21 has an upper end cylindrical portion fixed to an inner surface of the through hole 14 opened on the upper surface of the upright wall portion 13 by an appropriate means. Then, the outward flange 22 attached to the upper end of the cylinder 21 is engaged with the lower surface of the inward flange 15 attached to the upper end of the upright wall 13, and the cylinder portion above the outward flange 22 is The outward flange 15 protrudes upward from the through-hole 14 in the inner side of the flange 15, and is fitted with a threaded tube portion 23 on the inner surface of the upper end portion of the cylinder 21, and is attached to the upper end of the threaded tube portion. Of the inner and outer double cylinders suspended from the outer peripheral lower surface of the flange 24, the inner cylinder part 25 is fitted and fixed to the cylinder part outer surface above the outward flange 22. The lower part of the cylinder 21 is reduced in diameter in two stages to be a medium diameter part 21a and a small diameter part 21b, and an engaging protrusion 26 is provided around the upper outer surface of the medium diameter part 21a, and at the bottom of the medium diameter part 21a. The suction valve 29 is formed by the valve seat 27 and the ball valve 28. The suction valve may be formed by other known valve bodies.
[0011]
The actuating member 30 with a nozzle is fitted into the cylinder 21 so that it can move up and down and cannot be extracted, and a stem 33 with a bottom is raised from a piston portion 32 with a discharge valve 31 and a nozzle 34 is attached to the top of the stem. A stem fitting cylinder 36 suspended from the pressing head 35 is integrally connected. The piston portion 32 is formed by a lower portion of the stem 33 and an inner / outer double cylindrical tubular piston 37 fitted to the lower outer surface of the stem, and the discharge valve 31 is formed at the lower end portion of the stem 33. It is formed by the discharge valve hole 38 and the above-mentioned cylindrical piston 37, and the cylindrical piston 37 moves vertically between the outward flange-like wall 39 on the outer periphery of the bottom wall of the stem 33 and the lower end surface of the stem fitting cylinder 36. Then, the discharge valve hole 38 is opened by ascending and is closed by descending. A coil spring 40 is interposed between the bottom surface of the flange 33 on the outer periphery of the bottom wall of the stem 33 and the upper surface of the inwardly extending wall at the lower part of the middle diameter portion 21a of the cylinder. It is fast.
[0012]
The suction pipe 50 is slidably fitted to the outer surface of the small-diameter portion 21b of the cylinder, and the upper half of the tube wall fitted to the outer surface of the small-diameter portion has a small outer diameter. Engagement protrusions 51 are provided around the intermediate outer surface of 50a, and a plurality of long grooves 52 are provided at equal intervals in the tube wall below the cylinder 21, and suction holes 53 are formed in both upper and lower portions of the rear wall of the long grooves. is doing.
[0013]
The seal cylinder 60 has a lower cylinder part fixed to the outer surface of the small outer diameter part 50a of the suction pipe and an upper cylinder part fixed to the upper part of the middle diameter part 21a of the cylinder by appropriate means. The aforementioned engaging protrusion 26 is provided in the first engaging groove 61 provided on the inner surface of the cylindrical portion, and the aforementioned engaging protrusion 51 is provided in the second engaging groove 62 provided on the inner surface of the upper cylindrical portion. Are respectively locked. Further, a bellows-like tube portion 63 is provided in an intermediate tube portion between the upper and lower tube portions, and the bellows-like tube portion will be described later.
[0014]
The flexible container 70 has a rigid mouth-and-neck part 72 raised from the upper end of the body part 71, and a part other than the mouth-and-neck part is formed of a flexible sheet, and the body part 71 is filled with liquid. . The flexible container is housed in the container body, the suction pipe 50 is inserted into the body 71, and the large outer diameter part 63a of the bellows-like cylindrical part is connected to the mouth and neck as shown in FIG. The inner surface of the portion 72 is pressed in a watertight manner. The flexible container contracts as the stored liquid decreases. However, as described above, the suction hole 53 of the suction pipe is formed in the rear wall of the long groove 52, so that the flexible container contracts. The hole 53 is not blocked, and the sucking of the stored liquid is not hindered.
[0015]
In the present invention, when the second peripheral wall 12 of the cap is screwed down and tightened to the first peripheral wall 3 of the container body to the lower limit, the lower end of the suction pipe 50 is connected to the bottom wall of the container body through the bottom wall portion of the flexible container. (2) The lowering of the cylinder 21 is prevented from coming into contact with the inner surface and the cylinder 21 is lowered with respect to the suction pipe 50. FIG. 3 shows a state before the cap second peripheral wall 12 is fastened to the first peripheral wall 3 of the container body, and when the cap second peripheral wall 12 is screwed down to the lower limit and tightened, the lower end of the suction pipe 50 is As shown in FIG. 2, the cylinder 21 descends with respect to the suction pipe 50 and comes into an accordion-like shape while contacting the upper surface of the small protrusion 4 of the container body bottom wall 2 through the bottom wall portion of the flexible container. The large outer diameter portion 63a of the cylindrical portion is increased in diameter, and the outer surface of the large outer diameter portion is in watertight pressure contact with the inner surface of the flexible container mouth / neck portion 72.
[0016]
The flexible container 70 shall be replaced when the stored liquid is used up. The procedure will be described. First, the second peripheral wall 12 of the cap is screwed from the upper end of the first peripheral wall 3 of the container body from the state shown in FIG. Let Then, first, the cylinder 21 rises with respect to the suction pipe 50, so that the seal cylinder 60 is extended in the cylinder direction, and the large outer diameter portion 63a of the bellows-shaped cylinder portion is reduced in outer diameter as shown in FIG. The outer surface of the large outer diameter portion is separated from the inner surface of the flexible container mouth / neck portion 72, the cylinder 21 and the suction pipe 50 are extracted from the flexible container 70, and the flexible container 70 is extracted from the container main body. Next, a new flexible container for replacement is opened and accommodated in the container main body, and the second peripheral wall 12 of the cap is screwed down to the lower limit to the upper end of the first peripheral wall 3 of the container body and tightened. Since the lower end of the pipe 50 is in contact with the upper surface of the small protrusion 4 of the bottom wall 2 of the container body through the bottom wall of the flexible container, the lowering is prevented, so that the cylinder 21 descends with respect to the suction pipe 50 and the seal cylinder 60 is elastically compressed in the cylinder direction, the large outer diameter portion 63a of the bellows-shaped cylindrical portion 63 is increased in outer diameter, and the outer surface of the large outer diameter portion is in water-tight pressure contact with the inner surface of the flexible container mouth neck portion 72; Become.
[0017]
FIG. 4 shows a second embodiment of the container of the present invention. In this embodiment, only parts different from the first embodiment will be described, and parts having the same structure will be denoted by the same reference numerals and described. Omitted.
[0018]
The container of the present embodiment has a mouth tube 16 standing up from the periphery of the through hole 14 of the cap top wall 11, and an outward flange 22 at the top of the cylinder 21 through which the mouth tube 16 is inserted is mounted on the upper surface of the mouth tube. The cylinder 21 is attached to the cap 10 by engaging an inward flange 81 at the upper end of the mounting cylinder 80 screwed into the outer surface of the mouth cylinder 16 with the upper surface of the outward flange 22.
[0019]
A plurality of guide plates 17 are suspended from the lower surface of the top wall portion around the mouth tube 16, and an inscribed circle formed by the inner side surfaces of these guide plates is set to have substantially the same diameter as the outer diameter of the cylinder 21. The cylinder 21 is inserted into the contact circle, and the lower surface of the inner portion of each guide plate 17 is set as an inclined surface 17a toward the upper and inner sides, and the upper surface portion of the flexible container mouth neck portion 72 is brought into contact with these inclined surfaces. Yes.
[0020]
When replacing the flexible container 70, the second peripheral wall 12 of the cap 10 is screwed off from the upper end of the first peripheral wall 3 of the container body from the state shown in FIG. Then, first, the cylinder 21 rises with respect to the suction pipe 50, so that the seal cylinder 60 is extended in the cylinder direction, and the large outside diameter portion 63a of the bellows-like cylinder portion is reduced to a small outside diameter. Thus, the cylinder 21 and the suction pipe 50 are extracted from the flexible container 70 and the flexible container 70 is extracted from the container main body. When a new flexible container for replacement is accommodated in the container body, the mounting cylinder 80 is unscrewed from the mouth tube 16, and the pump member 20 is removed from the cap 10. Next, when the second peripheral wall 12 of the cap is screwed down and tightened to the upper end of the container main body first peripheral wall 3, the intermediate portion of the inclined surface 17 a of the guide plate 17 contacts the upper surface portion of the flexible container neck portion 72. The mouth and neck portion 72 of the flexible container is positioned at a predetermined position. Next, when the cylinder 21 and the suction pipe 50 are inserted into the flexible container 70 and the mounting cylinder 80 is screwed into the cap 16 of the cap 10, the lower end of the suction pipe 50 is interposed through the bottom wall portion of the flexible container. Since the lowering of the suction pipe 50 is prevented from coming into contact with the upper surface of the small protrusion 4 on the bottom wall 2 of the container body, the cylinder 21 is lowered with respect to the suction pipe 50 and the seal cylinder 60 is elastically compressed in the cylinder direction. Thus, the large outer diameter portion 63a of the bellows-like cylindrical portion 63 is increased in outer diameter, and the outer surface of the large outer diameter portion is in watertight pressure contact with the inner surface of the flexible container mouth / neck portion 72.
[0021]
【The invention's effect】
The present invention is configured as described above. In the case of the invention according to claim 1, the upper part of the suction pipe 50 is slidably fitted to the lower outer surface of the cylinder 21, and the second peripheral wall of the cap 10 is provided. When 12 is screwed to the first peripheral wall 3 of the container body to the lower limit and tightened, the cylinder 21 descends with respect to the suction pipe 50, and the seal cylinder 60 is elastically compressed in the cylinder direction, thereby causing the bellows-like cylinder to be compressed. Since the large outer diameter portion 63a of the portion 63 is increased in outer diameter, and the outer surface of the large outer diameter portion is formed so as to be watertightly press-contactable to the inner surface of the flexible container mouth / neck portion 72, as shown in FIG. When the two peripheral walls 12 are screwed down and tightened to the first peripheral wall 3 of the container body to the lower limit, the large outer diameter portion 63a of the bellows-like cylindrical portion 63 is increased, and the outer surface of the large outer diameter portion is the flexible container mouth and neck. The inner neck of the portion 72 is pressed in a watertight manner, so that the mouth and neck portion 72 of the flexible container can be easily and reliably sealed. When the second peripheral wall 12 of the cap 10 is screwed off from the first peripheral wall 3 of the container body from the state indicated by the above, the cylinder 21 rises with respect to the suction pipe 50, and the seal cylinder 60 extends in the cylinder direction. As shown in FIG. 3, the large outer diameter portion 63a of the bellows-shaped cylindrical portion is reduced in outer diameter, and the outer surface of the large outer diameter portion is separated from the inner surface of the flexible container mouth / neck portion 72. The cylinder 21 and the suction pipe 50 can be easily extracted, so that the flexible container can be easily replaced.
[0022]
In the case of the invention described in claim 2, the mouth tube 16 is erected from the periphery of the through hole 14 of the cap top wall 11, and a plurality of guide plates 17 are suspended from the lower surface of the top wall portion around the mouth tube. Since at least the inner surface of the lower surface of the plate 17 is inclined upwardly and inwardly, the upper surface portion of the flexible container mouth neck 72 is brought into contact with these inclined surfaces. Therefore, when replacing the flexible container, the pump member 20 At the same time, the cap 10 is removed from the container main body, and the flexible container for replacement is accommodated in the container main body. Then, the pump member 20 is removed from the cap 10, and the second peripheral wall 12 of the cap 10 is used as the first peripheral wall of the container main body. 3. When screwed into the upper end, the inclined surface 17a of the guide plate comes into contact with the upper surface portion of the flexible container mouth / neck part 72, and the mouth / neck part can be positioned at a predetermined position. Easily insert suction pipe 50 and cylinder 21 into the mouth and neck In addition, the outer surface of the large outer diameter portion 63a of the seal cylinder 60 can be more reliably brought into pressure contact with the inner surface of the flexible container mouth neck.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a first embodiment of a container of the present invention.
FIG. 2 is an enlarged vertical sectional view of a main part of the same embodiment.
FIG. 3 is an enlarged vertical sectional view of a main part showing the embodiment in a state where a cylinder is pulled up to an upper limit with respect to a suction pipe.
FIG. 4 is a longitudinal sectional view showing a second embodiment of the container of the present invention.
[Explanation of symbols]
1 ... Container body 20 ... Pump member with cap
30 ... Actuating member 50 ... Suction pipe 60 ... Seal cylinder
70… Flexible container

Claims (2)

A container body 1 that erects the first peripheral wall 3 from the outer periphery of the bottom wall 2;
A second peripheral wall 12 suspended from the outer periphery of the cap top wall 11 is fitted to the outer surface of the upper end portion of the first peripheral wall 3 of the container body, and an upper end cylinder is formed on the inner surface of the through hole 14 drilled in the central portion of the top wall 11. A pump member 20 with a cap that is erected by causing the cylinder 21 to hang down with the portion fixed, and by urging the actuating member 30 with a nozzle upward from the inside of the cylinder;
A suction pipe 50 that is slidably fitted into the lower outer surface of the cylinder 21 and has a suction hole 53 in the pipe wall;
The lower cylinder part is fixed to the upper outer surface of the suction pipe and the upper cylinder part is fixed to the outer surface of the cylinder part above the suction pipe 50, and the intermediate cylinder part between the upper and lower cylinder parts is A seal tube 60 provided with a bellows-shaped tube portion 63;
The suction pipe 50 is inserted into the body portion 71, and the bellows-like cylindrical portion 63 is positioned inside the rigid neck portion 72 so as to be housed in the container body 1. A flexible sheet 70 formed of a flexible sheet and filled with liquid inside,
When the second peripheral wall 12 of the pump member 20 with the cap is screwed to the first peripheral wall 3 of the container body to the lower limit and tightened,
With the lower end of the suction pipe 50 in contact with the inner surface of the bottom wall 2 of the container body through the bottom wall portion of the flexible container,
The cylinder 21 descends with respect to the suction pipe 50 and elastically compresses the seal cylinder 60 in the cylinder direction, so that the large outside diameter portion 63a of the bellows-like cylinder portion 63 becomes large and the large outside diameter is increased. A pump type liquid dispensing container characterized in that the outer surface of the diameter portion is formed so as to be able to press-contact with the inner surface of the flexible container mouth neck portion 72 in a watertight manner. The mouth tube 16 is erected from the periphery of the through hole 14 of the cap top wall 11, and the outward flange 22 at the top of the cylinder 21 through which the mouth tube 16 is inserted is placed on the upper surface of the mouth tube 16, and the mouth tube 16 The inward flange 81 at the upper end of the mounting cylinder 80 screwed to the outer surface is engaged with the upper surface of the outward flange 22, and the cylinder 21 is attached to the cap 10.
Also, a plurality of guide plates 17 are suspended from the lower surface of the top wall portion around the mouth tube 16, and the inscribed circle formed by the inner side surfaces of these guide plates is set to be approximately the same diameter as the cylinder 21 outer diameter. 21 is inserted,
Further, at least the lower surface of the inner portion of each lower surface of each guide plate 17 is formed as an upper and inner inclined surface 17a, and the upper surface portion of the flexible container mouth / neck portion 72 is brought into contact with these inclined surfaces. Item 2. A pump type liquid dispensing container according to Item 1.

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