JPH06100002A - Dispenser for free-flow formulation - Google Patents

Abstract

(57) [Summary] [Objective] To provide a dispenser for a free-flowing preparation that can be manufactured for both refillable and non-refillable containers. [Structure] Insert the insert into the neck portion of the container (1) that discharges the free-flow medium, and form a groove / bead connection as a catch member between the insert and the neck portion of the container. The insert (7) is fitted to the container neck (2) by a cam (15) that allows the catch member to yield and projects radially from the inside of the screw cap (5) and engages behind the end flange (9). ) Can be withdrawn from
The non-refillable container (1) does not have a cam (15) and the groove (1
4) Change the radial dimensions of the bead (12) and the groove itself that fit into it. If the size of the bead (12) is increased, the catch member cannot yield.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispenser for a free-flowing preparation in which a neck portion of a container is covered.

[0002]

BACKGROUND OF THE INVENTION Prior art devices of the type described above are provided with a container containing a free-flowing content which is discharged by various methods such as spraying, atomizing or foaming. For this reason,
The insert fits into the neck of the container, the cap is screwed onto the neck of the container, and means specially designed to obtain one of the above discharge types, such as mixing chamber, distributor member and outlet opening. Can be accommodated in the container insert and cap.
However, a pump may be provided that may be manually or motor operated to expel the contents.

In the case of this type of container with a cap screwed onto the neck of the container, a so-called refill cam is provided on the inside of the cap, which interacts with a part of the neck of the container to form the cap. By acting as a restriction to the rotational movement of the container, it prevents the cap from rotating past the open position to prevent refilling of the container, or the device with the cam and stop on the container can overcome the stop position. It is known to allow such refilling (reuse), given the possible special construction.

[0004]

However, there is a relatively high risk of over-turning or breakage of part of this stop, and if such a case occurs, it is impossible to refill the container. The actual purpose cannot be achieved. This non-refillability is necessary, for example, because the remainder of the container contents cannot be removed or cannot be used together with other substances.

Moreover, the stop position of the screw cap makes it impossible to completely open the container and remove the parts arranged at the neck portion of the container, and as a result, it is intentionally impossible to refill the container. There is also the problem of disappearing.

In view of the above circumstances, the present invention reduces the manufacturing cost and arranges the parts that interact with the refill cam even if an incorrect operation such as excessive force is applied, at appropriate positions. It is an object of the invention to provide a dispenser for a free-flow formulation, which can be non-refillable and can be manufactured into a reusable container with a simple modification of the internal shape.

[0007]

[Means for Solving the Problems] and

To achieve the above object, the device according to the invention discharges a free-flowing medium from a container, has the construction of claim 1 and is arranged in the container neck part (2) and its cross-section is shown. The space-filling insert is structured to allow the free-flowing medium to be expelled. The insert supported on the container neck portion is fixed and held by fitting a catch member formed of a bead on the container neck portion side and a groove on the insert side. In the case of a refillable container, the catch member is yieldable and a cam that projects radially from the inside of the screw cap and engages behind the end flange allows the insert to be withdrawn from the container neck. If the container is in a non-reusable form, eliminate this cam on the cap. Alternatively, the container may be refillable or not by changing the radial dimensions of the bead that fits in the groove and the groove itself.

[0008]

Embodiments of the present invention will now be described with reference to the accompanying drawings.

A container 1 whose upper part is shown in FIG. 1 is provided with a container neck portion 2, to which a male screw 3 is provided,
A cap 5 having an internal thread 4 is screwed onto the external thread 3 and covers the neck portion 2. In the case of so-called push-pull lids, the cap is not threaded. The cap 5 is movable by axial rotational movement between a closed position shown in FIG. 1 and an open position shown in FIG.

In addition, the cap 5 is provided with an outlet opening 6 so that the container 1 made of flexible plastic material can be manually compressed as shown in FIG. 2 and the effect of the pressure generated thereby. Thus, in this embodiment, when the foamable liquid contained in the container 1 is combined with the air above it to generate bubbles, the bubbles are discharged from the outlet opening 6.

The foam is generated in the insert 7 of a special structure capable of generating foam, which is arranged in the container neck portion 2, but this is not critical to the invention and the subject of the invention is to It also relates to a container with an insert 7 of another construction suitable for atomizing or spraying. In the case of incompressible containers, the pressure to expel the contents can be generated by a manual pump.

The invention relates to any type of container in which the insert 7 is arranged in the container neck part 2. If the container contents are liquid, this insert is connected to a riser tube 8 for liquid which extends inside the container. In the case of pasty contents, the riser tube is omitted. Inside the insert, various types of feed passages can be formed according to different types of discharge by spraying or foaming. What is important is that the structure of the outer peripheral portion is the same in each embodiment.

The circled area of FIG. 2 is shown in greater detail in FIG. The insert 7, which is substantially cylindrical on the outside, is fitted into the container neck part 2 and an end flange 9 provided on the upper end thereof projects radially outwardly from the container neck part 2, whereby the insert is 7 is supported on the end face 10 of the container neck portion 2. A bead that protrudes radially inwardly inwardly on the inside 11 of the substantially cylindrical container neck portion inside the end surface 10 of the container neck portion 2.
12 is formed, and the outer side 13 of the insert 7 is formed with a groove 14 that interacts with the bead 12, and the groove / bead connecting portion 12, 14 obtained by engaging the bead 12 in this groove is formed. Form a catch member which prevents the insert 7 from being pulled out in the axial direction.

To withdraw the insert 7 in the case of a refillable container, a cam 15 is provided inside the screw-on cap 5 as a lid, which is directed radially inwardly towards the container neck 2. It has a protruding structure. This so-called refill cam 15 engages behind the protruding end flange 9 of the insert 7 so that when the cap 5 is rotationally moved in the opening direction, the plastic material used for all the members is elastically deformable. Because there is a bead
The catch member consisting of 12 and groove 14 yields and the insert 7 is taken out in the axial direction.

In the case where the container cannot be refilled, the insert 7 cannot be pulled out from the container neck portion 2 unless the cap 5 is provided with the cam 15.

As another example, in a reusable container,
The bead that fits in the groove 14 at the groove / bead connection 12,14
The radial height of 12 is lower than the corresponding radial height of the groove / bead connection 12, 14 in the case of a non-reusable container.

Therefore, the catch members 12 and 14 act only in a limited manner, and in the case of the insert 7 which is for a refillable container and needs to be taken out from the neck portion of the container,
Catch members 12, 1 by selective sizing of beads 12
Can surrender 4. However, in the case of a container that cannot be refilled, the catch member cannot be yielded by increasing the radial dimension of the bead. The difference in the set dimensions of the bead 12 is not so large.For example, in the case of a refillable container, the bead 12 is directed inward from the inside 11 of the cylindrical container.
In the case of a container that protrudes 0.2 mm and cannot be refilled,
It protrudes 0.4mm from the inside. In other words, the diameter dimension of the bead 12 can be selectively changed according to the two types of containers 1, that is, the refillable container and the non-refillable container.

The catch member formed by the groove / bead connections 12, 14 can yield only if the bead 12 is small in size. In addition, the size of the bead 12 is large,
The cam 15 is designed so that if the catch formed by the groove 14 and the groove 14 does not yield, the cam 15 on the cap 5 breaks and thus the insert 7 remains in the container neck part 2. As a result, the container cannot be refilled and cannot be reused as the manufacturer intended.

A small annular bead 16 is formed between the end flange 9 and the groove 14 of the insert 7, which bites into the container neck part 2 so that the complete bead between the insert and the container neck part is obtained. The airtightness is formed so that the liquid in the container cannot enter during that time.

As a modification of the illustrated embodiment, the bead 12 may be formed on the insert 7 side and the groove 14 may be formed concavely on the container neck portion 2 side. Such a catch member can, in any embodiment, render a container of the above type further unusable if it needs to be reusable for the reasons mentioned at the outset.

[0021]

As described above, according to the present invention, the groove / bead connecting portion as a catch member is provided between the insert fitted in the neck portion of the container and the neck portion of the container, and further, the lid body of the container is provided. By providing a cam that protrudes from the inside of the radial direction, when the lid moves axially in the opening direction,
A cam may engage the end flange of the insert to pull the insert out of the container neck into a refillable container. Further, by changing the radial dimension of the bead that fits in the groove and the groove itself, it is possible to manufacture at low cost both refill and non-refill type containers without changing the outer dimensions of the container.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of the upper portion of a container for generating and delivering foam, showing a screw cap in a closed position.

2 is a longitudinal cross-sectional view of the upper portion of the container of FIG. 1 with the screw cap in the open position.

FIG. 3 is a detailed view showing an enlarged part surrounded by a circle in FIG.

[Explanation of symbols]

 2 Container neck 5 Cap (lid) 7 Insert 9 Rim 10 End of neck 11 Inside of neck 12 Bead 13 Outside of insert 14 Groove 15 Cam

Claims (6)

[Claims] 1. A container containing a free-flowing medium for release by spraying or foaming, such as by air pressure,
A dispenser for a free-flow formulation, comprising an insert fitted in the neck of a container and a lid covering the neck of the container, the inside (11) of the container neck and the outside (13) of the insert. Has
As a catch member that restrictively acts on the relative axial movement of the insert (7) and the container neck portion (2), they mesh with each other on the circumference inwardly of the end portion (10) of the container neck portion. In the case of a reusable or refillable container that forms a groove / bead connection (12, 14), the neck of the container (2)
Inside the lid (5) that engages the outer perimeter of the
A cam (15) protruding inward in the radial direction in the direction of (2) is provided, and after the lid (5) has moved axially in the opening direction, the cam has a radius larger than that of the container neck portion from the end of the insert. It comes in contact with the rim (9) protruding outwards, and when the lid further axially moves in the opening direction, the catch members (12, 14) yield and the insert (7) is stored in the container. Neck
(2) A dispenser that can be pulled out from. 2. A container containing a free-flowing medium for release by spraying or foaming, such as by air pressure,
A dispenser for a free-flow formulation, comprising an insert fitted in the neck of a container and a lid covering the neck of the container, the inside (11) of the container neck and the outside (13) of the insert. Has
As a catch member that restrictively acts on the relative axial movement of the insert (7) and the container neck portion (2), they mesh with each other on the circumference inwardly of the end portion (10) of the container neck portion. A groove / bead connection (12, 14) is formed, a cam (15) is provided inside the lid (5), and a groove / bead as a catch member is provided between the container neck portion (2) and the insert (7). Forming a connection (12,14), wherein the catch member (12,14) has a first radial height in the case of a reusable container and a first radius in the case of a non-reusable container A second radial height greater than the directional height, the cam (15) optionally depending on the dimensions of the groove / bead connection (12, 14) with respect to the radial height of different size. While the lid is axially moving in the opening direction, the catch member
Dispenser characterized in that the (12, 14) yields and the insert (7) is pulled out of the container neck (2) or the cam (15) is destroyed without the catch member yielding. 3. The cam (15) on the lid (5) is characterized in that the catch formed by the groove / bead connection (12, 14) is broken if it does not yield. The dispenser according to claim 2. 4. A peripheral bead (12) is formed inside the container neck portion (2) and a groove (14) is formed outside the insert (7). Dispenser. 5. The radial height of the bead (12) and the radial depth of the groove (14) are in the case of an insert (7) which can be pulled out by a cam (15) on the lid (5). 0.2 mm,
Dispenser according to claim 2, characterized in that in the case of a non-drawable insert (7) it is about twice that. 6. The rim of the insert projecting radially outwardly beyond the container neck portion (2) is formed as an end flange (9), and the insert (7) further comprises an end flange.
A further annular bead (16) is provided between the (9) and the groove / bead connection (12, 14) to ensure that this bead bites into the container neck (2) to maintain perfect airtightness. Dispenser according to claim 1 or 2, characterized in.