JP2525553Y2 - Liquid container having open structure - Google Patents

Description

[Detailed description of the invention] (Industrial application field) Before use, a liquid container in which a plurality of kinds of liquids are stored independently of each other and opened so that these liquids can be mixed with each other in use. Also, the present invention relates to a liquid container having an opening structure, such as a liquid container in which a stored liquid is blocked from the outside before use and the liquid is used by opening the liquid.

Specific examples include containers that contain mixed liquids such as luminescent liquids used in concerts and perm liquids used in beauty salons, etc., and containers containing solid-liquid mixed heating elements such as sake containers with a warming function. Alternatively, a writing implement or an applicator for attaching an ink tank containing a writing liquid or a coating liquid may be used.

(Prior Art) There are various types of opening structures in liquid containers. For example, in the above-described mixed type luminescent liquid container, the liquid separator is broken by bending the soft container.
Further, in a sake container with a warming function, a bag body for separately containing a liquid to be poured into a solid that is a heat generating base can be pierced with a needle. In addition, in writing instruments and applicators,
A plug is integrally molded with the ink tank body made of injection molded product, or a disk-shaped or spherical separate plug is attached, and ink is applied to a bamboo spear-shaped or rod-shaped member (an example of a stopper). The tank is pressed and inserted to open the plug.

(Problem to be solved by the invention) It is desired that opening can be easily performed as desired. In this regard, the bending of the flexible container in the mixed type luminescent liquid container is unstable, as described above. It may happen that the thing put in the bag is deformed by the external pressure and opened before you know it. Drilling with a needle in a sake container with a hot function is troublesome. Further, when an ink tank such as a writing instrument is inserted, the ink tank may be unnecessarily opened unless the ink tank is kept completely separated in an unused state.

(Means for Solving the Problems) The present invention makes it possible to open a first member having a plug and a second member having a plug with the plug without leaking the contained liquid. Before the opening, before fitting, the fitting position of the first member and the second member is made different before and after opening. The projections that come into contact with each other and release the collision after opening are
The gist is a liquid container having an opening structure formed integrally with each of the member and the second member.

(Example) An example will be described based on the attached FIGS. 1 to 3.

First, in FIG. 1 and FIG. 2 showing a longitudinal section thereof, a front shaft 1 has a discharge member 2 which is sufficiently integrated at the tip end by bonding or welding. The distal end portion 3 of the discharge member 2 is not open. The opening is formed by cutting or cutting a blade, and a small diameter portion 4 is provided near the tip for convenience of the opening.

The front shaft 1 is the "first member" in the present embodiment, and has a plug 6 in the inner hole 5 (FIG. 2). This plug 6 can be easily broken, and in the present example, which is drawn in consideration of a synthetic resin injection molded product in consideration of the price, it is provided integrally with the front shaft 1. It may be pasted. The inner hole 5 of the front shaft 1 is
The inner diameter is reduced so as to form an annular concave portion 7 further rearward. The concave portion 7 stabilizes the strength of fitting with a rear shaft described later.

The rear part 8 of the front shaft 1 has a smaller outer diameter than the front part 9. However, the boundary is not linear, but is uneven. It can be said that a plurality of ribs 10 project from the front part 9 to the rear part 8 with a gap 11 therebetween. However, this rib 10 is the “(first member) convex part” in the present example. It is.

The rear shaft 12 is fitted to the front shaft 1.
The tip has a two-layer structure and is fitted at two places. That is, the inner cylinder 13 is inserted into the inner hole 5 of the tip 1 and the outer cylinder 14 is inserted into the rear portion 8 of the front shaft 1. Here, the inner cylindrical portion 13 has an oblique cutting tip, but the fitting between the inner cylindrical portion 13 and the inner hole 5 of the front shaft 1 is liquid-tight. Further, the outer cylindrical portion 14 has a plurality of notches 15 from the distal end, and a portion of the protruding portion 16 formed by these notches 15 toward the front is externally inserted into the rear portion 8 of the front shaft 1.

The fitting enables relative sliding between the front shaft 1 and the rear shaft 12. That is, the relationship that the inner cylinder portion 13 is a piston and the rear portion 8 of the front shaft 1 is a cylinder is satisfied. However,
In the state shown in FIGS. 1 and 2, the rib 10 of the front shaft 1 and the protruding portion 16 of the rear shaft 12 have their ends abutted with each other, so that further fitting cannot be performed.

To advance the fitting, first, the front shaft 1 and the rear shaft 12 are relatively rotated. Projection of rear shaft 12 against gap 11 of front shaft 1
16 is a rib 10 of the front shaft 1 with respect to the notch 15 of the rear shaft 12.
, Respectively. Thereafter, if a relative pressing force is applied to the front shaft 1 and the rear shaft 12, the fitting proceeds.

Due to the progress of the fitting, the inner cylindrical portion 13 of the front shaft 1 is
, And the plug is opened, and the state shown in FIG. 3 is reached. Rear shaft 1
2. The inner cylindrical portion 13 and the protruding portion 16 are the “second member”, the “plug stopper”, and the “projection (of the second member)” in this example, respectively. Reference numeral 17 denotes a tail plug, which is sufficiently integrated with the rear shaft 12 by bonding or welding. Reference numerals 18 and 19 are projections provided on the front shaft 1 so that the protruding portions 16 of the rear shaft 12 abut against them, and the fitting position can be confirmed by a touch when the vehicle gets over these. In addition, the increase in the internal pressure due to the overall volume decrease due to the progress of the fitting is not particularly problematic in consideration of the diameter of the inner cylindrical portion 13 and the amount of the liquid to be accommodated. The fitting may be advanced after the distal end portion 3 of the member 2 is opened.

In this embodiment, the liquid can be stored in both the front shaft 1 and the rear shaft 12. For example, in order to use a mixed solution, different types of liquids can be stored in each of them, or a liquid can be stored in the front shaft 1, while a reaction initiator can be stored in the rear shaft 12. And so on. However, this embodiment considers the case where at least the liquid is stored in the front shaft 1. That is, in the case of this example, it is considered that there are many cases where the storage is performed with the upper side of the drawing up before opening, and in this case, the plug 6 is provided on the rear shaft 12 and the protruding portion 16 is provided on the front shaft 1. With this arrangement, the rear shaft 12 can be a first member and the front shaft 1 can be a second member, and liquid can be stored in the front shaft 1. In such a case, the sliding contact between the piston and the cylinder can be achieved. The liquid will always be located in the part. On the other hand, if the plug 6 is provided on the front shaft 1, the liquid leakage can be reliably prevented unless the rear shaft 12 is filled with liquid.

Next, an example of a modification is shown in FIG. In the following, the same reference numerals are used for basically the same parts as those described above.

The rib 10, the gap 11, the notch 15, and the protruding portion 16 can be provided in an appropriate number and an appropriate shape. For example, in the above,
Leave each one of the ribs 10 and the protrusions 16
It is also possible to leave one of the gap 11 and the protrusion 16 and leave the rest as the rib 10 and the notch 15 (although the expression such as "rib" may not be appropriate in terms of shape). .

FIG. 4 shows an example of such a structure.
The abutment area with 16 is narrowed. By doing so, the relative rotation amount of the front shaft 1 and the rear shaft 12 at the time of opening can be reduced, and a twisting relationship is given to the contact / opening of the inner cylindrical portion 13 with the plug 6. be able to.

Such a narrowing of the abutment area is caused by a slight front axis 1 and rear axis 12
It may be said that the relative rotation with the above makes opening by pressing possible, so that the instability increases. But,
The fitting in the inner cylinder portion 13 that enables liquid-tight sliding due to the piston-cylinder relationship necessarily has a sufficient fitting force, and the relative rotation of the front shaft 1 and the rear shaft 12 is in a normal state. In fact, this is not a problem, because it is unlikely to occur. However, in order to show that other stability improving means may be used together, the projecting end of the rib 10 is slightly depressed in the drawing.

Next, another example is shown in FIG. 5 and FIG. In this example, an applicator having a tip knock type valve structure is used. Since the basic structure is well known, only a brief description will be given, but 20 is the application destination, 21 is the valve rod, 22 is the spring, 23 is the liquid-containing, 24 is the valve seat member, 25 is the front shaft, 26 is the ink tank , 27 are outer shafts. The ink tank 26 having the stopper 6 is a “first member”, and the front shaft 25 having the inner rear portion 28 as a stopper is a “second member”. Further, the inner rib 30 provided on the outer rear portion 29 of the front shaft 25 and the outer rib 31 provided on the ink tank 26 are each a “convex portion”. At the tip of the ink tank 26, the one corresponding to the recess 7 is not provided, but the outer shaft 27 is removed.
The basic operation at the time of opening the plug by advancing the fitting between the ink tank 26 and the front shaft 25 is the same as that described above.

In this example, the outer shaft 27 is provided for reasons of aesthetics, but of course, without having such an outer shaft 27, the ink tank 26 may be a part of the shaft. .

Although not shown, various other operations can be performed without departing from the gist. For example, the shape of the stopper body is appropriate,
In addition, in the apparatus shown in FIG. 1, the tip 3 of the discharge member 2 may be originally opened, and a cap as a separate member may be used.

(Effect of the Invention) The liquid container of the present invention enables the first member having the stopper and the second member having the stopper to be opened by the stopper without leaking the contained liquid. , The piston-cylinder-related liquid-tight sliding fit, and the first member and the second member
In order to make the fitting positions with the members before and after opening the plugs different from each other before the plugging, and after the plugging, the projections for releasing the collision are formed by the first member and the second member. Since it has an opening structure integrally formed with each of the members, it is possible to easily open the opening as desired while preventing unnecessary opening.

[Brief description of the drawings]

FIG. 1 is a side view showing a state before opening according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view taken along line AA 'of FIG. 1, and FIG. FIG. 4 is a side view showing an example of the modification, FIG. 5 is a longitudinal sectional view showing another embodiment, and FIG. 6 is a transverse sectional view taken along the line BB 'of FIG. 1... Tip shaft, 2... Discharge member, 3.
Small diameter part, 5 ... Inner hole, 6 ... Plug body, 7 ... Recessed part, 8 ...
... the rear part of the front shaft, 9 ... the front part of the front shaft, 10 ... the rib, 11 ...
Clearance, 12 ... Rear shaft, 13 ... Inner tube, 14 ... Outer tube, 15 ...
… Notch, 16 …… Protrusion, 17… Tail plug, 18 …… Protrusion, 19…
... Projection, 20 ... Application destination, 21 ... Valve rod, 22 ... Spring, 23 ... Liquid containing, 24 ... Valve seat member, 25 ... Front shaft, 26 ...
... Ink tank, 27 ... Outer shaft, 28 ... Inner rear part, 29 ... Outer rear part, 30 ... Inner rib, 31 ... Outer rib.

Claims (1)

(57) [Scope of request for utility model registration] A liquid related to a piston and a cylinder is provided so that a first member having a stopper and a second member having a stopper can be opened by the stopper without leaking the contained liquid. Before opening, the first member and the second member abut against each other so that the fitting positions of the first member and the second member are different from each other before and after opening. After that, the convex part to release the abutment is the first
A liquid container having an opening structure formed integrally with each of the member and the second member.