JP2000016452A - Pump attaching cap of pour container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably prevent water from entering a cap even if a shower is applied from slantly above a pour container by placing a cover cylinder for covering the upper face of the cap in a piston guide member and also by forming a barrier ring positioned inside the cover cylinder on an annular top wall of the cap. SOLUTION: When a nozzle head A3 is rotated to unscrew from a piston guide member A4 at the time of using a pump A, a piston member A2 rises by activation of a spring 24 for sucking content liquid in a pour container C into a cylinder 1. If the nozzle head A3 is pressed at this time, the content liquid is dispensed from a nozzle through a stem. A barrier ring 52 extending to an upper end of a cover cylinder 45 of the piston guide member A4 is provided to stand on a top wall 50 of a cap B. Even if a shower is applied from slantly above with respect to an axial direction of the pour container C and water enters from between the cover cylinder 45 and the top wall 50, the water can be prevented from entering an attachment flange 4 inside the cap B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap for a dispensing container, and more particularly to a cap for mounting a pump on a dispensing container in which a pump is attached to a container mouth portion.

[0002]

2. Description of the Related Art A dispensing container in which a pump is attached to a container mouth using a cap has been well known. 2. Description of the Related Art As a conventional dispensing container, for example, a dispensing container in which a pump is attached to a container mouth portion using a mounting cap as shown in FIG. 6 is known. In FIG. 6, Aa is a pump, Ba is a cap that attaches the pump to the container mouth via a packing, and the pump Aa is a cylinder member Aa1, a piston member Aa2 having a stem, and an upper end of the stem. It comprises a nozzle head Aa3 attached and a piston guide member Aa4 attached to the upper end of the cylinder member Aa1.

[0003] The cap Ba is composed of a screwed cylinder 100 having a screw engraved on the inner periphery thereof, and an annular top wall 101 projecting inward from the upper end of the screwed cylinder 100. , A covering cylinder 102 covering the top wall 101 of the cap Ba is vertically provided. A mounting flange 103 is provided on the upper part of the cylinder member Aa1.
In mounting the cap a, the screwing cylinder 100 of the cap Ba is screwed to the container mouth cylinder, and the top wall 101 is attached to the mounting flange 10.
3 is pressed, and the packing 104 seals the upper end of the container mouth cylinder. In mounting the pump Aa, the top wall 101 of the cap Ba is freely movable between the lower end of the covering cylinder 102 and the mounting flange 103 so that the pump Aa does not interlock with the rotation of the cap Ba.

[0004] Therefore, when the pump Aa is attached to the container mouth portion, a gap is formed between the lower end of the cover cylinder 102 of the piston guide member Aa4 and the upper surface of the top wall 101 of the cap Ba.

[0005]

When the above-mentioned spout container is used in a place where shower water is applied, when hot water is applied from above the container in the axial direction, hot water does not enter from around the cap Ba. When hot water of a shower (arrow) is applied from obliquely above with respect to the axial direction of the container, hot water hits the top wall 101 from the gap between the covering cylinder 102 of the piston guide member Aa4 and the top wall 101 of the cap Ba, and the top surface of the top wall 101 To enter the cap Ba and accumulate between the inner end surface of the top wall 101 and the upper surface of the mounting flange 103.

Normally, there is no problem with drying over time, but when the cap Ba is loosened to remove the pump Aa for refilling the contents, hot water remains. As shown in FIG. 6B, the hot and cold water may travel along the mounting flange 103 of the pump Aa, go around the inside of the cap Ba, and enter the container.

An object of the present invention is to solve the above-mentioned problems and to provide a cap for mounting a pump of a dispensing container, which prevents intrusion of hot and cold water.

[0008]

According to the present invention, a cylinder member, a piston member and a nozzle head having a mounting flange and a mounting cylinder on an upper part thereof as a cap for mounting a pump of a dispensing container. A pump comprising: a pump having a piston guide member attached to the mounting cylinder; and a pump mounting cap, wherein the piston guide member includes a screw-in tube, and a lower portion of the screw-in tube. And a cover cylinder that is vertically installed on the cap and covers the upper surface of the cap, wherein the cap includes an annular top wall having an upper surface on which a barrier ring located inside the cover cylinder is erected. Is adopted.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, A is a pump, B is a cap, and C is a container in which a pump A is attached to a mouthpiece. The pump A, the cap B, and the container C are formed of a synthetic resin, and the container C contains a shampoo, a rinsing liquid such as a shampoo or a rinse, or a cosmetic liquid.

The pump A comprises a cylinder member A1, a piston member A2, a nozzle head A3, a piston guide member A4.
It consists of

As shown in FIGS. 1 and 2, a cylinder member A
1 includes a cylinder tube 1 and a valve mechanism 2 disposed at the bottom of the cylinder tube 1. The upper end of the cylinder tube 1 is enlarged in diameter to form a mounting tube 3 for the piston guide member A4, and a mounting flange 4 is provided below the mounting tube 3.

An annular plate 5 protruding inward is provided at a lower end of the cylinder tube 1, and a valve seat cylinder 7 having an upper end edge as a valve seat 6 is provided on an inner peripheral edge of the annular plate 5. Has been established.
At the lower part of the annular plate 5, a holding cylinder 9 for fitting the dipping tube 8 is vertically provided.

On the upper surface of the annular plate 5, a suction valve member 10 fitted to the lower end of the inner periphery of the cylinder 1 is supported.
The valve mechanism 2 is configured together with the valve seat cylinder 7. The suction valve member 10 includes a valve holding tube 11 and a spring holding tube 12, and as shown in FIG. 3, the valve holding tube 11 is provided with a plurality of connecting pieces 13 extending in a circumferential direction. A suction valve 14 is connected in a vertically movable manner. Valve holding cylinder 11 and spring holding cylinder 1
2 are connected by a plurality of connecting members 15, and an upper end surface of the connecting member 15 is a spring receiving surface 16.
A dam plate 17 is provided in the center of the spring holding tube 12, and the peripheral edge of the tube on both sides thereof is an opening 18 for forming a liquid flow path.

As shown in FIG. 2, the piston member A2 is
The cylinder 20 is connected to the stem 20 and the lower peripheral edge thereof.
It has a sliding peripheral wall 21 that slides in contact with the inner circumference and a valve mechanism 22 disposed in the stem 20. The lower end of the stem 20 is a spring receiving surface 23, and the cylinder member A
A spring 24 is mounted between the spring receiving surface 16 and the first spring receiving surface 16.
The upper part of the stem 20 is reduced in diameter, and a step part 25 is provided. The upper part of the step part 25 is a support cylinder 26 of the nozzle head A3.

From the inner peripheral edge of the step portion 25, a conical cylindrical valve seat 27 is formed.
A ball-shaped discharge valve 28 is supported on the valve seat 27. The valve seat 27 and the discharge valve 28 constitute a valve mechanism 22 of the piston member A2. Stem 20
The lower part has an enlarged diameter, an engaging step 29 is formed on the outer periphery, and the lower peripheral edge is connected to the sliding peripheral wall 21.

The nozzle head A3 includes a top wall 30 and a side cylindrical wall 3
1 and a central portion of the top wall 30 is provided with a stem 20.
A mounting tube 32 fitted to the supporting tube 26 is vertically provided. A nozzle 33 protrudes from the outer periphery of the side tube wall 31, and a base end of the nozzle 33 is connected to the inside of the mounting tube 32, and a liquid flow path passes through the mounting tube 32 and an inner hole of the support tube 26 of the stem 20. Are formed. A screw 34 is engraved on the inner periphery of the side cylindrical wall 31 so that the nozzle head A3 is screwed to the piston guide member A4 when the dispensing container is not used.

The piston guide member A4 has an annular top wall 40.
And a screwing cylinder 42 having a screw 41 engraved on the outer periphery thereof. At a lower portion of the screwing cylinder 42, an upper wall 43 extending in a flange shape from a lower end and a covering cylinder 45 including a side cylinder wall 44 are provided. It is installed continuously. A fitting tube 47 provided with a bulging ring 46 on the inner periphery from the lower surface of the top wall 40 is vertically provided inside the screwing tube 42, and further, on the inside thereof, engages with the inner periphery of the cylinder member A1. An engagement cylinder 48 is provided vertically. A stem guide cylinder 49 is vertically provided from the inner peripheral edge of the top wall 40, and a lower end thereof abuts against the step portion 25 of the stem 20 to serve as a stopper 49a for regulating the ascending position of the piston.

As shown in FIG. 4, the cap B has an annular top wall 50 and a side cylindrical wall 51.
When the pump is mounted, a barrier ring 52 that is located inside the side cylinder wall 44 of the cover cylinder 45 and extends near the upper wall 43 is provided upright. A container C shown in FIG.
A screw 55 is screwed into a screw 54 formed on the outer periphery of the mouthpiece 53.

Next, a description will be given of the mode of use and the effects of the pump. In the pump A, first, the piston member A2 is incorporated into the cylinder member A1, the packing P is mounted on the lower surface of the mounting flange 4, the cap B is placed on the upper surface of the mounting flange 4, and the piston guide member A4 is The fitting tube 47 is attached to the attachment tube 3 of the cylinder member A1, and then the attachment tube 32 of the nozzle head A3 is fitted to the support tube 26 of the stem 20 and attached to the stem 20, and the nozzle head A3 is pushed down. The side wall 31 is connected to the piston guide A
The pump A is assembled by screwing into the screwing cylinder 42 of No. 4. To attach the pump A to the container C, insert the cylinder member A1 of the pump A into the mouthpiece 53 of the container C,
This is performed by screwing the cap B into the mouthpiece 53 of the container C.

When the pump A is used, when the nozzle head A3 is rotated and the screw engagement with the piston guide member A4 is released, the piston member A2 is raised by the action of the spring 24, as shown in FIG. A certain amount of the liquid in the container C is sucked into the cylinder 1 through the valve 14. Next, when the nozzle head A3 is pressed, the suction valve 14 closes and the discharge valve 28 opens,
The content liquid is discharged from the nozzle 33 through the stem 20. By repeatedly pressing the nozzle head A3, a predetermined amount of the content liquid can be discharged.

A barrier ring 52 extending up to the upper wall of the cover cylinder 45 of the piston guide member A4 is provided upright on the top wall 50 of the cap B, so that the pump A can be used with respect to the axial direction of the dispensing container during use. Shower water is applied from diagonally above,
Even if hot water enters from between the cover cylinder 45 and the top wall 50 of the cap B, hot water can be prevented from entering the mounting flange 4 in the cap B.

In the above embodiment, a pump having a specific structure has been described as the pump A.
Needless to say, the internal structure of the piston member A2, the nozzle head A3, and the like can adopt a configuration different from that described above, and the piston guide member A4 also has a cylindrical wall whose outer peripheral wall covers the upper surface of the cap B. If it has
The screw cylinder 42 and the cover cylinder 45 may not be provided.

[0023]

The present invention has the following effects because it is configured as described above. Since a barrier ring is provided upright on the top wall of the cap and extends to near the top wall of the covering cylinder that covers the cap, even if a shower may be applied obliquely from above with respect to the axial direction of the dispensing container, Hot water does not enter the cap.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a pouring container of the present invention.

FIG. 2 is an exploded view of the pump.

FIG. 3 is an explanatory view of a suction valve member, and is a cross-sectional view taken along line AA of FIG. 2;

FIG. 4 is a longitudinal sectional view of a cap.

FIG. 5 is a diagram illustrating the operation of the pump when the piston member is rising.

FIG. 6 is an explanatory view of a conventional cap, wherein (a) is in use,
(B) is a longitudinal sectional view showing a state when the cap is loosened.

[Explanation of symbols]

 A, Aa Pump B, Ba Cap C Container A1, Aa1 Cylinder member A2, Aa2 Piston member A3, Aa3 Nozzle head A4, Aa4 Piston guide member 1 Cylinder cylinder 3 Mounting cylinder 4, 103 Mounting flange 6 Valve seat 10 Suction valve member 11 Valve holding cylinder 14 Suction valve 20 Stem 21 Sliding peripheral wall 27 Valve seat 28 Discharge valve 32 Mounting cylinder 33 Nozzle 40 Top wall 41 Screw 42 Screwing cylinder 43 Upper wall 44 Side cylinder wall 45, 102 Covering cylinder 46 Expansion ring 47 Fitting Mounting tube 49 Stem guide tube 50, 101 Top wall 51 Side tube wall 52 Barrier ring 53 Mouth tube portion 54, 55 Screw

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E084 AA04 AB01 BA02 CA01 CB02 DA01 DB12 FA09 FB01 GA01 GA08 GB01 GB12 GB14 LB02 LC01 LC06 LD22 LD26

Claims (1)

[Claims] 1. A pump comprising a cylinder member having a mounting flange and a mounting cylinder on an upper part, a piston member, a nozzle head and a piston guide member mounted on the mounting cylinder, and a pump mounting cap. A container, wherein the piston guide member includes a screwed cylinder, and a cover cylinder that is vertically provided below the screwed cylinder and covers an upper surface of the cap. A pump mounting cap for a dispensing container, comprising an annular top wall provided with an inner barrier ring.