JP2003191994A - Vertical pump type liquid ejection vessel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a locking cylinder 41 and a cylinder 11 from corotating not to unscrew a depressing head when the depressing head is unscrewed in a vertical pump type liquid ejection vessel in which an outwardly directed flange 12 on an upper part of the cylinder 11 suspended into a vessel body 1 is placed on an upper end face of a neck part of the vessel body via a packing 13, the outwardly directed flange 12 is held between an inwardly directed flange 22 at an upper end of a fitting cylinder 21 screwed onto an outer surface of the neck part and the upper end face of the neck part, and the depressing head 35 fitted to the upper end of a working member 31 which is upwardly urged from the inside of the cylinder and erected is screwed to the locking cylinder 41 which is depressed against the urging and non- turnably fitted to the upper end of the cylinder in order to prevent the locking cylinder 41 and the cylinder 11 from corotating and the depressing head from becoming unscrewable. <P>SOLUTION: First and second locking projecting bars 3 and 17 are vertically provided on an outer surface of the upper end part of the neck part 2 of the vessel body and an outer surface of a cylinder part immediately below the outwardly directed flange 12, a third locking projecting bar 13a is suspended from the outer circumference of the packing 13, a fourth locking projecting bar 13b is vertically provided on the inner circumferential surface of the packing, and the second and fourth projecting bars 17 and 13b are irrotationably engaged with the first and third projecting bars 3 and 13a. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical pump type liquid ejection container.

[0002]

[Prior art]

The upper end of the container body mouth and neck is mounted on the upper end surface of the container body so that the cylinder is hung vertically into the container body and screwed onto the outer surface of the container neck and neck. The inward flange of the above, the outer flange is sandwiched between the upper end surface of the mouth and neck, the operating member having a piston at the lower end of the stem and a push-down head with a nozzle fitted at the upper end from within the cylinder. Urging the piston upward so that it stands up, and the piston retaining cylinder is fixed to the upper end of the cylinder by inserting the stem so that it cannot rotate, and further pushing down the operating member against the bias. A vertical pump type liquid ejection container in which a head is screwed into a retaining cylinder is known.

In the above container, the reason why the actuating member is pushed down against the bias and the push-down head at the upper end of the actuating member is screwed into the piston retaining cylinder fitted in the upper end of the cylinder is as follows.
If the actuating member rises high above the piston retaining cylinder, the height of the entire container will increase, preventing the package from becoming bulky during transportation and maintaining the height when the actuating member is depressed. It is for circulating the container while keeping it low, but by doing so, by over-tightening the pressing head, when the pressing head is unscrewed, the retaining cylinder and the cylinder rotate together with the pressing head, Therefore, it has become impossible to screw the push-down head out of the retaining cylinder.

In order to eliminate the above-mentioned drawbacks, as shown in Japanese Utility Model Publication No. 4-20525, a first engaging means is provided on the outer surface of the upper end of the neck of the container body, and a second engaging is performed from the outer circumference of the cylinder outward flange. Containers have been developed in which the means are suspended such that the engagement of both of these engagement means prevents the cylinder from rotating relative to the neck of the container body. However, since the cylinder originally has a high manufacturing cost, it is necessary to suppress the cost by mass production of a small variety of products, while the shape of the engaging means formed on the neck of the container body is the material of the bottle, such as a glass bottle or a pet bottle. Therefore, the cylinders used in such bottles are required to be manufactured in a variety of products in small quantities, and thus the conventional technology cannot be fully utilized.

On the production line for assembling the pump, the engaging portion of the cylinder may come into contact with the conveyor belt or the guide plates on both sides of the belt to hinder smooth transfer.

According to the present invention, the packing to be interposed between the upper end surface of the neck portion of the container body and the lower surface of the outward flange of the cylinder can be manufactured at a low cost, and the packing is in the form of a collar which is hard to roll on the belt. Focusing on a certain point, the packing is provided so as to be used as the cylinder rotation preventing component.

[0007]

[Means for Solving the Problems] As a first means, an outer flange is placed on the upper end surface of the neck and neck of a container body via packing, and a cylinder is hung vertically inside the container to form an outer surface of the neck and neck of the container body. With the inward flange at the upper end of the mounting cylinder screwed in, the outward flange and the packing are sandwiched between the upper end surface of the mouth and neck, and the piston is provided at the lower end of the stem and the nozzle is provided at the upper end from the inside of the cylinder. The operating member to which the push-down head is fitted is urged upward to stand up, and a piston retaining cylinder is attached to the upper end of the cylinder standing upward above the outward flange.
In the vertical pump type liquid ejection container, in which the stem is inserted so as to be non-rotatably fitted, and the operation member is pushed down against the bias to screw the push-down head into the retaining cylinder. The upper end of the body opening / neck portion 2 has a small outer diameter, and an appropriate number of first locking projections 3 are vertically provided on the outer surface of the small outer diameter portion, and an appropriate number of outer surfaces of the cylinder portion directly below the outward flange 12 are provided. Second
The detent ridges 17 are provided vertically, and the third detent ridges 13a are vertically provided from the outer periphery of the packing 13 and packed.
The 4th stop protrusion 13b is provided vertically on the inner peripheral surface of 13 to form the 1st stop protrusion 3 and the 3rd stop protrusion 13a, and the 2nd stop protrusion.
17 and the fourth stop projection 13b are engaged with each other so that they cannot rotate.

As a second means, the third turning projection 13a having the first means is formed on the inner surface of the short cylinder 13c by hanging the short cylinder 13c from the outer circumference of the cylinder outward flange 12. .

As a third means, an outer flange is placed on the upper end surface of the neck portion of the container body via packing, a cylinder is hung vertically inside the container body, and the cylinder is screwed onto the outer surface of the neck portion of the container body. An inward flange at the upper end of the cylinder holds the outward flange and packing between the upper end surface of the mouth and neck, and from inside the cylinder, has a piston at the lower end of the stem and a push-down head with a nozzle at the upper end. The actuating member attached is urged upward to stand up, and the piston retaining cylinder is fitted to the upper end of the cylinder standing upward toward the outward flange so as not to rotate by inserting the stem. In the vertical pump type liquid ejection container in which the pressing head is screwed into the retaining cylinder by pressing down against the biasing force, the lower surface of the cylinder outward flange 12 and the upper surface of the packing 13 are engaged with each other. No bite The mating engaging portions 13d, 13d are shaped.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION First, a brief description will be given to a conventionally known part. Reference numeral 1 is a container body, and a mouth / neck portion 2 with a male screw is erected from an upper end of a body portion through a shoulder portion.

Reference numeral 11 denotes a cylinder, and an outward flange 12 attached to the upper portion of the cylinder is placed on the upper surface of the neck portion of the container body via a packing 13 so as to be hung in the container body.

Reference numeral 21 denotes a mounting cylinder which is screwed onto the outer surface of the mouth and neck of the container body, and is an inward flange 22 attached to the upper end of the mounting cylinder. The outward flange of the cylinder is connected to the upper end surface of the mouth and neck through packing. It is held between.

Reference numeral 31 denotes an actuating member, which has a cylindrical piston 33 attached to the lower end of the stem 32 and a push-down head 35 with a nozzle 34 fitted to the upper end of the stem to urge it upward from the inside of the cylinder 11 to stand up. ing.

Reference numeral 41 denotes a piston retaining cylinder which is inserted through the stem 32 and is non-rotatably fitted to the outer surface of the cylinder portion projecting upward of the outward flange. The outer peripheral wall 42 of the retaining cylinder is formed as a male screw cylinder, and the pressing head 35 is pressed against the urging force to screw the outer peripheral wall 36 of the head. In addition, engagement ridges that mesh with each other are vertically provided on the inner surface of the upper end of the cylinder and the outer surface of the retaining cylinder portion that faces the inner surface so that they cannot rotate.

A suction valve 14 is provided in the bottom of the cylinder described above.
A discharge valve 15 is provided in the upper part of the stem,
When the screwing between 41 and the pressing head 35 is removed, the actuating member 31 rises, and by vertically moving the actuating member from this state, the suction pipe which droops the liquid in the container from the lower end of the cylinder.
The liquid is sucked into the cylinder via 16 and the liquid in the cylinder can be ejected from the nozzle 34 via the stem.

The present invention will be described below. 1 to 4 show a first embodiment.

In the first embodiment, the container neck 2
With a small outer diameter at the upper end, a suitable number of first stop projections 3 are vertically provided on the outer surface of the small outer diameter portion, and a suitable number of second stop projections are also provided on the outer surface of the cylinder portion directly below the outward flange 12. The strip 17 is provided vertically, the third retaining projection 13a is hung from the outer periphery of the packing 13 as shown in FIG. 3, and the fourth retaining projection 13b is provided vertically on the inner periphery of the packing. The first stop ridge 3
Is engaged with the third retaining ridge 13a, the second retaining ridge 17 is engaged with the fourth retaining ridge 13b, and the packing 13 is attached to the container body neck 2 and the cylinder 11 is attached. The packing 13 is provided so as not to rotate.

The third stop projection 13a may be formed in a sawtooth shape as shown in FIG. 3, and in this case, the first stop projection 3 also has a sawtooth shape which meshes with the third stop projection 13a. As a result, the packing 13 cannot be rotated in the screwing-out direction of the push-down head 35.

5 and 6 show a second embodiment. In this embodiment, the third stop protrusion 13a in the first embodiment is used.
Is a short cylinder that hangs from the outer circumference of the packing 13 as shown in FIG.
13c is formed on the inner surface, and other parts are the same as in the first embodiment. Also in the case of the second embodiment, the third stop protrusion may have a sawtooth shape as in the case of FIG. 3 or a vertical rib shape.

7 and 8 show the third embodiment. In this embodiment, the lower surface of the cylinder outward flange 12 and the packing
Engagement portions that engage or mesh with the upper surface of 13
13d and 13d are provided. In the illustrated example, the engaging portion on the flange side is a ridge and the engaging portion on the packing side is a concave ridge, but it may be provided in the opposite manner. The ridges may be provided so as to mesh with each other. The engaging portions are formed in a radial shape.

The cylinder rotation preventing mechanism in the third embodiment may be performed by only the both engaging portions 13d, 13d, but the first to the fourth embodiments in the case of the first and second embodiments already described. It is also possible to further provide the engaging protrusions 13d, 13d after performing the rotation-stopping protrusion. By doing so, the cylinder rotation preventing effect can be further enhanced. The packing 13 in each of the above-described embodiments can be expected to have a sealing effect due to packing.
Moreover, the third and fourth stop projections 13a and 13b and the engaging portion 13d
The material should be such that the anti-rotation effect can be obtained. As the material, soft polyethylene is suitable.

[0022]

The present invention has the above-described structure, and since the packing can be manufactured at a low cost, it can be made to correspond to each shape of the first locking projection 3 on the mouth neck side of the container body made of different materials. Even if a packing having the third retaining ridge 13a having the different shape is manufactured, the cost of the container is not increased thereby.

Further, in the case of claim 1, the third retaining projection 13a is hung from the outer periphery of the packing and the third protrusion 13a is provided on the inner peripheral surface of the packing with
Although the anti-rotation protrusion 13b is provided vertically, since the packing is in the form of a brim and is transferred in surface contact with the upper surface of the belt of the production line, it does not roll as in the case of the cylinder, and therefore the second The detent ridge 17 does not touch the belt or the guide plate to stop temporarily, and the fourth detent ridge 13b is vertically provided on the inner peripheral surface of the packing, so that the ridge may touch the belt or the like. There is no.

In the case of claim 2, the third stop projection 13
A short cylinder that hangs a from the outer circumference of the cylinder outward flange 13
c Since it is shaped on the inner surface, the third retaining ridge 13a is reinforced by the short cylinder, and the third retaining ridge 13a does not come off to the outside of the first retaining ridge 3.

In the third aspect, since the engaging portions 13d and 13d are only provided on the lower surface of the outward flange 12 of the cylinder and the upper surface of the packing 13, respectively, the mechanism for preventing the cylinder rotation is extremely simple. Can be transformed.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a container of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of FIG.

FIG. 3 is a perspective view of a packing used in the container shown in FIG. 1.

FIG. 4 is a perspective view of a main part of a cylinder used in the container shown in FIG. 1 as viewed from below.

FIG. 5 is a perspective view of packing showing the second embodiment.

FIG. 6 is a bottom view of FIG. 5 packing.

FIG. 7 is a perspective view of a main part of a cylinder used in the third embodiment as seen from below.

FIG. 8 is a perspective view showing packing used in the third embodiment.

[Explanation of symbols]

2… Mouth neck 3… 1st stop protrusion 11… Cylinder 12… Outward flange 13… Packing 13a… Third stop protrusion 13b… 4th stop protrusion 17… Second stop protrusion 31… Actuating member 41… Retaining cylinder

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3E084 AA04 AA12 AB01 BA02 CA01                       DA01 DB12 FA09 FB01 GA04                       GB04 HA03 HB08 HC03 HD01                       LB02 LC01 LC06 LD22 LD26

Claims (3)

[Claims] 1. A cylinder is hung vertically on the outer surface of the neck of the container body by placing an outward flange on the upper surface of the neck of the container body via packing, and the cylinder is vertically screwed to the outer surface of the neck of the container body. With the inward flange, the outward flange and the packing are clamped between the mouth and neck upper end surface, and from the inside of the cylinder,
An operating member having a piston at the lower end of the stem and a push-down head with a nozzle fitted at the upper end is urged upward to stand up, and a piston retaining cylinder is attached to the upper end of the cylinder standing above the outward flange. A vertical pump-type liquid ejection container in which a stem is inserted so as to be non-rotatably fitted, and further, the operating member is pushed down against a bias to screw the pushing down head into a retaining cylinder, The upper end portion of the mouth / neck portion 2 has a small outer diameter, and an appropriate number of first stop protrusions 3 are vertically provided on the outer surface of the small outer diameter portion,
An appropriate number of second retaining ridges 17 are vertically provided on the outer surface of the cylinder portion immediately below the outward flange 12, and the third retaining ridges 13a are hung from the outer periphery of the packing 13 and the inside of the packing 13 is hung. 4th stop ridge 13 on the circumference
b is installed vertically so that the first stop ridge 3 and the third stop ridge 13a, and the second stop ridge 17 and the fourth stop ridge 13b are engaged with each other so as not to rotate. A vertical pump type liquid ejection container characterized by being combined. 2. The vertical type according to claim 1, wherein the third locking projection 13a is formed on the inner surface of the short cylinder by hanging a short cylinder 13c from the outer periphery of the cylinder outward flange 12. Pump type liquid ejection container. 3. The upper end surface of the neck of the container body is mounted with an outward flange via packing, and a cylinder is hung vertically inside the container body. With the inward flange, the outward flange and the packing are clamped between the mouth and neck upper end surface, and from the inside of the cylinder,
An operating member having a piston at the lower end of the stem and a push-down head with a nozzle fitted at the upper end is urged upward to stand up, and a piston retaining cylinder is attached to the upper end of the cylinder standing above the outward flange. In a vertical pump type liquid ejection container in which a stem is inserted so as to be non-rotatably fitted, and further the operation member is pushed down against an urging force so that a pushing down head is screwed into a retaining cylinder, Engaging portions 13 that engage or mesh with the lower surface of the facing flange 12 and the upper surface of the packing 13, respectively.
A vertical pump-type liquid ejection container characterized by being shaped with d and 13d.