JP2002068255A - Bubble discharging pump container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bubble discharging pump container in which some component parts can be accurately assembled without erroneously setting their orientations or positions. SOLUTION: This bubble discharging pump container in accordance with the present invention is constructed such that a cap 32 or a nozzle 38 and a cylinder 33 of the composing elements are provided with a rib 53 or a groove 54 and a protrusion 55 or the like for indicating a correct assembling direction. When they are assembled, these component elements are fitted to each other or applied as marks to enable an accurate assembling to be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam discharging pump container used for containers such as shampoo and liquid soap.

[0002]

2. Description of the Related Art FIG. 1 shows an example of such a pump container, which discharges the contents in a foamed state.

A container 1 shown in FIG. 1 includes a cap 2 fixed to a container main body (not shown) by screwing, a cylinder 3 fixed inside the container main body when the cap 2 is fixed to the container main body, 3, a piston guide 4 extending so as to be movable up and down in the cylinder 3,
The poppet 5 accommodated in the inside, the air piston 6 attached above the piston guide 4, the piston 7 attached below the piston guide 4, and the upper end of the piston guide 4 are fitted to be able to move up and down. Nozzle 8 and a spring 9 interposed between the piston 7 and the lower end of the poppet 5. The cylinder 3 has an air reservoir 3A on the upper side and a liquid reservoir 3B on the lower side. Further, a suction pipe 10 is attached to a lower end of the cylinder 3.

A packing 11 for sealing is provided between the container body and the cylinder 3, and an air piston valve 12 is provided inside the air piston 6. A ball valve 15 including a pedestal 13 and a ball-shaped valve element 14 is formed above the piston guide 4. Further, a jet ring 16 and a mesh ring 17 are arranged concentrically inside the nozzle 8. Here, the illustrated container 1 is shown in a state where an overcap 18 for protecting the nozzle 8 is provided. It should be noted that the operation of a foam discharging pump container such as the illustrated container 1 is described in, for example,
The description is omitted here.

[0005] In the illustrated container 1, an air vent 19 is provided in the upper portion of the cylinder 3 near a portion sandwiched between the cap 2 and the packing 11. The air that has entered from the outside flows into the container body through the air vent hole 19 from the air valve, and the air flows between the container body and the outside so that the negative pressure inside the container body is released. Further, the air reservoir 3A and the liquid reservoir 3B of the cylinder 3
In the portion where the air reservoir 3A is connected, a substantially mortar-shaped depression 21 having an inclined surface 20 is formed at the bottom of the air reservoir 3A, and the tip of the liquid reservoir 3B is connected to the center of the depression 21. Further, the inclined surface 20 has a projection 22. The projection is provided at a portion corresponding to the inclined surface 20 of the mold when molding the cylinder 3 by a gate for introducing molten resin into the mold. Shows the traces provided with the symbol.

In FIG. 1, the nozzle port 8A of the nozzle 8 and the lower end 10A of the suction pipe 10 face in the same direction, and the lower end of the suction pipe 10 is near the bottom of the container body (not shown). Shall be in contact with This is because, by matching the directions, a constant amount of the content is always discharged from the nozzle 8 over the entire use period, that is, from the first use until the content is exhausted.

In order to realize such a function, when assembling the container 1 from the cap 2, the cylinder 3, the nozzle 8 and the like constituting the container 1, accurate positioning and positioning can be performed without confusing the direction and position of each component. Measures that can be assembled are required.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been described in detail without mistaking the direction and position of each component.
The present invention proposes a pump container for discharging bubbles which can be assembled accurately.

[0009]

That is, the present invention provides a cap having a base fixed to a container body by screwing, a hollow neck standing upright from the base, and the cap to the container body. A cylinder fixed to the container body together with the fixing, a hollow piston guide movably extended in the cylinder in a vertical direction, and housed in the cylinder so as to be insertable into the piston guide. A rod-shaped poppet, an air piston attached to the upper part of the piston guide, an air piston sliding on the inner surface of the cylinder as the piston guide moves, and an inner surface of the cylinder attached to the lower part of the piston guide, A piston that slides with the movement, and is vertically movably inserted into the container body from a hollow portion of the cap, and has a lower end portion. A hollow cylindrical portion fitted to the upper end of the piston guide, and a nozzle including a head having a discharge port communicating with the cylindrical portion; a spring for urging the piston guide upward; A valve provided on the inner upper side, wherein the cylinder comprises a large-diameter air reservoir and a small-diameter liquid reservoir, and a bottom surface of the air reservoir and an upper end of the liquid reservoir are connected to each other; An elongated rib extending in the central axis direction from immediately below the discharge port on one of the cylindrical surface and the cap inner surface,
On the other hand, a positioning groove for fitting with the elongated rib is formed.

The foam discharging pump container according to the present invention is provided with an elongated rib on one of the surface of the nozzle and the inner surface of the cap and a groove on the other, and by fitting these, the direction of the nozzle outlet is changed. It allows accurate positioning. Thereby, it is possible to assemble correctly without making a mistake in the direction of the nozzle outlet at the time of assembling. Further, it becomes possible to always discharge a certain amount of contents from the nozzle to the end.

Further, the pump container for foam release according to the present invention comprises:
A small projection is formed at a position on the inner surface of the cap that is symmetrical to the alignment groove with respect to the center axis of the cap, and a cutout groove that fits with the small projection is formed at the upper end of the cylinder. It is characterized by the following. By doing so, the cap and the cylinder can be assembled without erroneous assembling directions, and the direction of the nozzle outlet and the direction of the lower end of the suction pipe can be correctly matched. As a result, it becomes possible to always discharge a certain amount of contents from the nozzle to the end.

Further, in the foam discharging pump container according to the present invention, an air hole is formed at a position directly below the notch groove on the side surface of the cylinder, and the air reservoir and the liquid reservoir of the cylinder are formed with the air reservoir. A plate-like rib for positioning is formed in the connection portion in accordance with the positions of the notch groove and the air hole. Also in this manner, the cap and the cylinder can be assembled without erroneously assembling the cap and the cylinder, and the direction of the nozzle outlet and the direction of the lower end of the suction pipe can be correctly matched. Therefore, it becomes possible to always discharge a certain amount of contents from the nozzle to the end.

[0013]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 2 shows an embodiment of a pump container according to the present invention. Here, the pump container for discharging foam is the same as that shown in FIG.

A container 31 shown in FIG. 2 has a cap 32 fixed to a container body (not shown) by screwing,
A cylinder 33 fixed inside the container body along with the fixing of the cylinder 32 to the container body, a piston guide 34 extending so as to be able to move up and down in the cylinder 33, the cylinder 33
The poppet 35 accommodated in the piston guide 34, the air piston 36 mounted above the piston guide 34, the piston 37 mounted below the piston guide 34, the upper end of the piston guide 34 fits, thereby making it possible to move up and down. And a spring 39 interposed between the piston 37 and the lower end of the poppet 35. The cylinder 33 has an air reservoir 33A on the upper side and a liquid reservoir 33B on the lower side.
Are formed respectively. Further, a suction pipe 40 is attached to a lower end of the cylinder 33. This suction pipe
40 is attached so that its lower end 40A faces in the same direction as the nozzle hole 38A of the nozzle 38. The operation of the present pump container 31 is the same as that of the conventional bubble discharging pump container as shown in FIG.

A packing 41 for sealing is provided between the container body and the cylinder 33, and an air piston valve 42 is provided inside the air piston 36. Further, a ball valve 45 including a pedestal 43 and a ball-shaped valve element 44 is formed above the piston guide 34. Further, a jet ring 46 and a mesh ring 47 are arranged concentrically inside the nozzle 38. Here, the illustrated container 31 is shown in a state in which an overcap 48 for protecting the nozzle 38 is covered.

In the illustrated container 31, a cylinder
An air vent hole 49 is provided on the side surface of 33. Through this air vent hole 49, air flows between the inside and the outside of the container body. The air vent hole 49 is provided in the nozzle port 38A.
It is formed on the opposite side of 80 °, that is, at a position symmetrical with respect to the central axis of the container 31. Further, in a portion where the air reservoir 33A and the liquid reservoir 33B of the cylinder 33 are connected, a substantially mortar-shaped recess 5 having an inclined surface 50 at the bottom of the air reservoir 33A.
1 is formed, and the upper end of the liquid reservoir 33B is connected to the center of the depression 51.

As shown in FIGS. 2 and 3, on the outer peripheral surface of the nozzle 38, there is formed an elongated rib 53 extending downward from immediately below the nozzle opening 38A. On the other hand, as shown in detail in FIG. On the inner peripheral surface of the cap 32, a groove 54 is formed.
When assembling the container 31, when inserting the nozzle 38 into the cap 32, the rib 53 is fitted into the groove 54.

As shown in FIG. 4, a small projection 55 is formed inside the cap 32. The small protrusion 55 is provided on the opposite side of the groove 54, that is, at a position symmetrical with respect to the center axis of the cap 32. On the other hand, a cutout 56 corresponding to the small protrusion 55 of the cap 32 is provided on the upper surface of the cylinder 33. The notch 56 is located right above the air vent hole 49 on the side surface of the cylinder 33, and when the cap 32 is connected to the cylinder 33, the small projection 55 is fitted into the notch 56. . As a result, the nozzle 38A and the air vent hole 49 of the nozzle 38 are correctly assembled so that they are located on opposite sides.

Further, as shown in FIGS. 6 and 7, a projection 52 is formed on an inclined surface 50 of a substantially mortar-shaped depression 51 formed on the bottom surface of the air reservoir 33A of the cylinder 33. A plate-like rib 57 is formed. This projection 52
When the cylinder 33 is formed by injection molding, a gate for introducing the molten resin from the outside into the molding die is inevitably formed by being provided at a position where the inclined surface 50 of the cylinder 33 is formed. It is a thing. On the other hand, the plate-like rib 57 is provided to indicate the position of the above-described air vent hole 49, and is formed immediately below the air vent hole 49 as shown in FIG.

FIG. 8 shows the small projection 55 of the cap 32 described above.
And a cutout portion 56 provided in the cylinder interior 33 is enlarged and schematically shown. As described above, when assembling the present container, the small protrusion 55 is fitted into the notch 56. As a result, correct assembly can be performed without mistaking the directions of the cap and the cylinder.

As described above, the pump container for discharging foam according to the present invention can assemble components and components such as nozzles and cylinders in the correct direction and position. As a result, it is possible to prevent the occurrence of defective products caused by mistakes during assembly, and it is possible to always discharge a fixed amount of contents from the nozzle to the end.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a conventional foam discharging pump container.

FIG. 2 is a sectional view showing a foam discharging pump container according to the present invention.

FIG. 3 is a view showing an appearance of a nozzle of the container of FIG. 2;

FIG. 4 is a view partially showing a cross section of the appearance of the cap of the container shown in FIG. 2;

FIG. 5 is a view showing the appearance of a cylinder of the container shown in FIG. 2;

6 is a perspective view showing a connection portion between an air reservoir and a liquid reservoir of the cylinder of FIG. 5;

7 is a view of a connection portion between the air reservoir and the liquid reservoir of the cylinder in FIG. 5 as viewed from the liquid reservoir side.

FIG. 8 is an enlarged view showing a small projection of the cap and a cutout provided in the cylinder, which fits with the small projection.

[Explanation of symbols]

 1,31 Pump container 2,32 Cap 3,33 Cylinder 4,34 Piston guide 5,35 Poppet 6,36 Air piston 7,37 Piston 8,38 Nozzle 9,39 Spring 10,40 Suction tube 11,41 Packing 12, 42 Air piston valve 13, 43 Ball valve seat 14, 44 Ball valve valve element 15, 45 Ball valve 16, 46 Jet ring 17, 47 Mesh ring 18, 48 Over cap 19, 49 Air vent hole 20, 50 Inclined surface of dent 21, 51 Depression 22, 52 Projection 53 Slender rib 54 Groove 55 Projection 56 Notch 57 Plate-shaped rib

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E084 AB01 BA02 CA01 CC03 DA01 DB12 DC03 FA09 FB01 GA04 GB04 KA01 KB05 LC01 LC06 LD22 LD25 LD26

Claims (3)

[Claims] 1. A cap having a base fixed to the container body by screwing, a hollow neck standing upright from the base, and a cap fixed to the container body with the cap fixed to the container body. A hollow piston guide extending movably in the cylinder in the vertical direction; a rod-shaped poppet housed in the cylinder so as to be insertable into the piston guide; An air piston attached to the upper part, which slides on the inner surface of the cylinder with the movement of the piston guide, and a piston attached to the lower part of the piston guide, which slides on the inner surface of the cylinder with the movement of the piston guide. The cap is inserted movably up and down into the container main body from the hollow portion of the cap, and the lower end is the upper end of the piston guide. A nozzle including a fitted hollow cylindrical portion, and a head having a discharge port communicating with the cylindrical portion; a spring for urging the piston guide upward; and a valve provided on an upper inside of the piston guide. The cylinder comprises a large-diameter air reservoir and a small-diameter liquid reservoir, and a bottom surface of the air reservoir and an upper end of the liquid reservoir are connected to each other; Characterized in that an elongated rib extending in the central axis direction from immediately below the discharge port is formed on one of the two sides, and a positioning groove is formed on the other side to be fitted with the elongated rib. Pump container. 2. A notch formed on the inner surface of the cap at a position symmetrical to the alignment groove with respect to the center axis of the cap, and a notch at the upper end of the cylinder to be fitted with the small protrusion. The pump container for discharging foam according to claim 1, wherein a groove is formed. 3. An air hole is formed at a position directly below the notch groove on a side surface of the cylinder, and the notch groove and a connection portion of the cylinder between the air reservoir and the liquid reservoir are provided. 3. The pump container according to claim 2, wherein a plate-like rib for positioning is formed in accordance with the position of the air hole.