JP3025578B2 - Pump mechanism for container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pumping mechanism for a container, and more particularly to a pumping mechanism for a container, in which a sealed bag covering the periphery of a suction portion does not adhere to the suction portion, thereby enabling efficient discharge of contents.

[0002]

2. Description of the Related Art A container shown in FIG. 19 is generally known as a container for discharging a fixed amount of contents having high viscosity or being deteriorated by contact with outside air.

[0003] This has a pump 3 in a mouthpiece portion 2 of a container 1, and the pump 3 is provided with a suction portion 4 opened in the container.
And an operating part 5 exposed to the outside. The periphery of the suction part 4 is covered with a sealed bag 6 and the contents 7 are accommodated in the sealed bag 6.

The suction section 4 is a pipe, and is open at the bottom of the sealed bag 6. Further, by lowering the operation section 5, the inside of the suction section 4 can be made to have a negative pressure.

In such a container, when discharging the contents 7 to the outside, the operating section 5 is moved downward to make the inside of the suction section 4 a negative pressure, and the contents are sucked up to discharge the contents 7 provided in the operating section 5. Discharge from outlet 5a. By successively sucking in this way, the contents 7 in the sealed bag 6 can be discharged until the contents 7 are exhausted.

[0006]

However, in the above-mentioned conventional container, there is no problem at the beginning of use, but when the content is reduced, the sealed bag 6 easily adheres to the suction portion 4 and the suction portion 4 Is closed, and the contents cannot be sucked. For this reason, the pump cannot return completely, and the contents remain.

[0007] Then, the sealing bag 6 is brought into close contact with the suction section 4 at the time of pouring, thereby preventing the contents 5 at the upper portion of the sealing bag 6 from flowing to the bottom of the suction section 4. The shrinking of the bottom at the bottom will cause the contents to remain at the top.

[0008] As described above, the contents are left uneconomical. The present invention has been made in view of the above, and provides a pump mechanism for a container in which a sealed bag is prevented from adhering to a suction portion so that contents can be discharged smoothly and reliably. Technical issues.

[0009]

In order to solve the above-mentioned technical problem, the present invention comprises a suction unit 4 inserted into a container and opened, and an operating unit exposed to the outside of the container. A container pump mechanism covered with a sealed bag 6 for storing and loading the contents in the container has the following configuration.

That is, in the first configuration, the suction portion 4 is cylindrical and has a concave or convex portion 8 extending in the longitudinal direction around the cylindrical portion.
And a plurality of suction holes 10 opening to the side surface at the end 9 of the suction portion 4, and each of the suction holes 10 has a recess 10 a opening from the suction hole 10 to the lower surface of the suction portion 4. Have been.

In the second configuration, the suction section 4 has an opening at the lower end of the pump 3 and a rod 11 extending from the vicinity of the suction section 4. It has an O-shaped cross section that extends to

Further, the container may be a two-layer laminated bottle in which the innermost inner layer and the outer layer adjacent to the inner layer are freely peeled off to prevent a change in the external shape of the bottle. it can. That is, this is a laminated bottle in which the inner layer and the outer layer of the bottle are peelable, and the inner layer and the outer layer are bonded at least in part. Here, it is sufficient that the inner layer is detachable, so if there are two or more layers, there may be any number of outer layers or any number of inner layers.

[0013]

In the first configuration, a void is formed between the closed bag 6 loaded in the container and the suction unit 4 by the concave or convex portion 8 formed around the suction unit, and the closed bag is connected to the suction unit. Does not adhere to

Further, in the second configuration, similarly, the rod 11
The sealing bag 6 is thereby prevented from sticking to the suction section 4.
On the other hand, in the case of a laminated bottle, a long time elapses after filling the contents,
When the volume of the contents is reduced in the sealed state and the inside of the bottle is depressurized, or when the inside of the bottle is depressurized by discharging the contents by a pump or the like, the inner layer is pulled by the negative pressure and peels off from the outer layer. Only the inner layer becomes a bag, which collapses and shrinks and deforms. In such a case, the peeled inner layer corresponding to the sealed bag does not adhere to the suction section 4.

As a result, a spouting path is ensured even if the contents become small, so that almost all of the contents can be discharged smoothly.

[0016]

Embodiment 1 Embodiment 1 of the present invention will be described with reference to FIGS. The structure in which the pump 3 is provided in the mouthpiece 2 of the container 1 and the structure of the airtight bag 6 are the same as those in the above-described conventional example, and therefore will not be described.

In this pump mechanism, a cylindrical suction part 4 is provided at the lower end of the pump 3, and an operating part (not shown) of the pump 3 is provided at the upper end. The container has an outer container and a sealed bag 6 loaded inside the outer container.
The suction unit 4 is inserted into a container, and the suction unit 4 is covered with a sealing bag 6. The sealed bag 6 is filled with contents.

When this pump mechanism is used in a laminated container, of the two layers of the outer layer and the inner layer, the inner layer corresponds to the above-mentioned closed bag 6, and the inner layer does not adhere to the suction portion 4. The contents can be poured out.

A rib-shaped projection 8 is formed on the outer periphery of the suction section 4 along the longitudinal direction. A total of four protrusions 8 are provided with an angle difference of 90 degrees. Further, at an end portion 9 located below the suction portion 4, four suction holes 10 opening to the side surface of the suction portion 4 are provided. A total of four suction holes 10 are provided between the convex portions 8 at an angle difference of 90 degrees, and a width of 1.5 mm and a length of 1
It has a 0 mm slit shape. The suction hole 10 is further opened on the lower surface of the suction unit 4. In this embodiment, the total length of the suction unit 4 is 110 mm, and the outer diameter of the suction unit 4 is 11 mm.
mm, and the height of the projection 8 is 1 mm.

The protruding portion 8 may be a concave portion. In other words, the protruding portion 8 may have such a structure as to prevent the hermetic bag 6 from being in close contact with the outer periphery of the suction portion 4 by these concavities and convexities. This makes it possible to discharge the contents smoothly and surely in the entire amount.

An experiment was conducted on the remaining amount of the contents and the remaining ratio of this example. As a result, a remaining amount of 36.95 g and a remaining ratio of 6.93% were obtained.

[0022]

Second Embodiment A second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the suction part 4 is not cylindrical but a circular hole having a diameter of 7 mm and opened at the lower end of the pump 3. And it is coaxial with this suction part 4,
Moreover, the rod 11 extends to a position not covering the rod. The cross section of this rod 11 has a “king” shape,
Its center coincides with the center of the suction section 4. The length of this rod 11 is 91 mm, and the width of the “horizontal” middle horizontal line is 1 mm.
3 mm, thickness 2 mm, and the horizontal line located at the top and bottom has a width of 7
mm and the thickness is 1.5 mm. Further, the distance between the horizontal lines located above and below is 9 mm.

An experiment was conducted on the remaining amount of the contents and the remaining ratio of this example. As a result, a remaining amount of 35.08 g and a remaining ratio of 6.78% were obtained.

[0024]

Third Embodiment A third embodiment of the present invention will be described with reference to FIGS. In this embodiment, as in the second embodiment, the suction portion 4 is not cylindrical but a circular hole having a diameter of 7 mm and opened at the lower end of the pump 3. And this suction part 4
At a position that is coaxial with and does not cover it.
Has been extended.

The cross section of this rod 11 is in the shape of a “king” and its center coincides with the center of the suction section 4.
The length of the rod 11 is 91 mm, the width of the middle horizontal line of the "king" is 14 mm, the thickness is 3 mm, and the horizontal lines located above and below are 8 mm in width and 2 mm in thickness. The distance between the horizontal lines located above and below is 10 mm.

When an experiment was conducted on the remaining amount of the contents and the remaining ratio of this example, a remaining amount of 28.90 g and a remaining ratio of 5.75% were obtained.

[0027]

[0028]

[0029]

[0030]

[0031]

[0032]

[0033]

[0034]

[0035]

[0036]

[0037]

As described above, according to the present invention, since a space is formed between the airtight bag and the suction portion, it is possible to prevent the airtight bag from adhering to the suction portion and to remove the contents. Discharge can be performed smoothly and reliably in the entire amount.

[Brief description of the drawings]

FIG. 1 is a side view of a main part showing a first embodiment of the present invention.

FIG. 2 is a plan view of a main part showing the first embodiment of the present invention.

FIG. 3 is a bottom view of a main part showing the first embodiment of the present invention.

FIG. 4 is a side view of an Abe showing a second embodiment of the present invention.

FIG. 5 is a plan view of Jiro showing a second embodiment of the present invention.

FIG. 6 is a bottom view of a main part showing a second embodiment of the present invention.

FIG. 7 is a side view of a main part showing a third embodiment of the present invention.

FIG. 8 is a plan view of a main part showing a third embodiment of the present invention.

FIG. 9 is a bottom view of a main part showing a third embodiment of the present invention.

FIG. 10 is a side view showing a conventional general pump-equipped container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Muzzle part 3 Pump 4 Suction part 5 Operating part 6 Sealing bag 7 Contents 8 Uneven part 9 End part 10 Suction port 11 Rod

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 83/76 B65D 47/34

Claims (3)

(57) [Claims] A suction unit which is inserted into a container and opened;
An actuation part exposed to the outside of the container, wherein the periphery of the suction part is a container pump mechanism covered with a sealed bag for storing the contents and loaded in the container, wherein the suction part is cylindrical. A plurality of recesses or protrusions extending in the longitudinal direction are formed around the periphery, and a plurality of suction holes that open to the side surface are provided at the end of the suction unit. A pump mechanism for a container, comprising: 2. A suction unit which is inserted into a container and opened.
An actuating part that is exposed to the outside of the container, wherein the periphery of the suction part is a container pump mechanism in which the contents are stored and sealed with a sealed bag that stores the contents to be loaded into the container. And a rod extending from the vicinity of the suction portion, and the rod has an O-shaped cross section extending the plate in two or more directions. Pump mechanism for containers. 3. The container according to claim 2, wherein the innermost inner layer and the outermost layer adjacent to the innermost layer are freely peeled off to prevent a change in the external shape of the bottle. 3. The pump mechanism for a container according to 1 or 2.