JP2898059B2 - Cartridge container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a printing machine filled with ink for feeding viscous ink to, for example, office printing machines, copying machines, etc.
The present invention relates to a cartridge container suitable for being mounted on a copying machine or the like. This cartridge container is also suitable as a container for suctioning and extracting a viscous fluid other than ink.

(Prior art) In order to supply viscous ink to office printing machines, copying machines, etc., an ink-filled flexible bag filled with ink is mounted on a printing machine, copying machine, etc. Ink is sucked from a spout provided in the bag by a plunger pump or the like.

(Problems to be Solved by the Invention) When such flexibility is used as an ink container, the bag is housed in a box to form a so-called bag-in-box. As the ink in the bag is sucked, the bag shrinks and deforms irregularly in the box, and it is difficult to completely use all the ink in the bag even by suction.

Before use, the spout is capped. In use, the cap is removed from the spout, and the spout is mounted on a printing machine or the like. However, when the cap is removed and the spout is mounted on the printing press, ink may leak from the spout.

The present invention has been made in view of such a point, and provides a cartridge container that can surely suck ink inside and can prevent leakage of ink when a spout is mounted. The purpose is to do.

[Configuration of the invention]

(Means for Solving the Problems) The present invention is directed to a flexible sheet having a lower half container section having an upward opening edge and having shape retention, and having a downward opening edge joined to the upward opening edge. An upper half container section made of a material, wherein the lower half container section is provided with a spout, and a spout is used to insert a joint end of a machine to be used. A cartridge container which is formed so as to be folded into the lower half container section when an object is sucked out from the spout, and a slitted film is attached to an end of the spout.

(Operation) Since a film with a slit formed in advance is attached to the spout, when attaching the tip of the joint to the spout, the outflow of the contents at the time of the joint is prevented and the film is removed by the joint. It can be easily broken.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

First, the entire cartridge container will be described with reference to FIGS.

As shown in FIG. 5, the cartridge container 1 of the present invention
Is composed of a lower half container section 1A having shape retention and an upper half container section 1B having a flexible sheet material. In the illustrated example, the cartridge container 1 has a rectangular parallelepiped shape, and each of the container sections 1A and 1B has a shape obtained by bisecting a rectangular parallelepiped in a diagonal plane.

The lower half container section 1A is made of a hard material, for example, a polyethylene resin, a vinyl chloride resin, a polypropylene resin, a polystyrene resin, or another material.

The upper half container section 1B is made of a polyethylene / nylon / polyethylene laminate or any other flexible resin, and is made of a sheet that can be welded to the lower half container section 1A.

As shown in FIG. 6, the lower half-vessel section 1A is provided with a spout 3 at the lower part of its square side wall, and is provided with a cap 3A. Also, lower half container section 1A
Has a flange 4 on the opening edge facing upward.

The upper half container section 1B has its downward opening edge 9 joined to the flange 4 of the lower half container section 1A. The joining of the upper half container section 1B to the flange 4 is preferably performed by, for example, welding with a linear hot platen 5A as shown in FIG. As shown in FIG. 8, when welding is performed by a hot platen 5B over the entire width of the flange 4, a temporary attachment portion 6 due to residual heat is generated.
Is deformed inward, and the capacity of the cartridge container tends to decrease.

When the contents are filled into the cartridge container 1, the shape is as shown in FIG. 5, but if the contents are completely removed from the spout 3 by suction, the upper half container section 1B becomes As shown in FIGS. 6, 9, and 10,
Due to its flexibility, it is folded into the lower half container section 1A so as to be in contact with the inner wall of the lower half container section 1A upside down.

In this folded state, the upper half container section 1B does not completely come into surface contact with the lower half container section 1A, and a gap is formed between them. This gap is the sixth
It is formed as shown in FIG. 10 and FIG.

That is, in FIG.
And gradually increases toward the pouring inlet 3, and the angle α is set to, for example, about 1 °. Note that the angle α can be set to zero. In any case, the pouring inlet 3
The upper container section 1B has a relatively large radius of curvature R, so that a space 7 is formed in the part adjacent to the spout 3.
The portion having the radius of curvature R does not necessarily have to have an arc-shaped cross section, but may have a cross-sectional shape in which a corner is cut off by a straight line. Also, as shown in FIG. 10, the upper half container section
The angle β formed by the gap between 1B and the lower half container section 1A is 0 ° to 2 °, and at the corners, the radius of curvature R of the upper half container section 1B is larger than the radius of curvature R ₁ of the lower half container section 1A. ₂ is made larger so that a space 8 is formed between both corners. Also in this case, the portions of the radii of curvature R ₁ and R ₂ may have a cross-sectional shape cut off by a straight line.

Next, the spout 3 will be described in detail with reference to FIGS.

1 to 4, FIG. 1 is a view showing a state where the cartridge container 1 is mounted on a joint on the printing press side, and FIG. 2 is a view showing a state where a cap is applied to the spout. FIG. 3 is a plan view of the film at the spout, and FIG.
The figure is a partial sectional view of the inner plug.

1, 2 and 4, a cylindrical inner plug 11 is inserted into the spout 3, and the outlet end of the inner plug 11 protrudes radially outward to form an annular protrusion. A portion 11A is formed. When the cap 3A is applied to the spout 3, the annular projection 11A is pressed and held between the spout 3 and the cap 3A (FIG. 2). Furthermore, inside plug
The film 12 is heat-sealed to the 11 annular protrusions 11A.

As a material of the film 12, for example, a material having a layer configuration that easily breaks through, such as Al / polyethylene and paper / Al / polyethylene, can be considered. When the film 12 is a laminated film, an adhesive considering oil resistance is used as an adhesive used between the layers.

Further, the film 12 is formed in advance with a linear slit 13 as shown in FIG. 3a and a cross-shaped slit 14 as shown in FIG. 3b.

When the spout 3 of the cartridge container 1 is mounted on the joint 20 of the printing press (not shown), the film 12 is broken by the distal end portion 22 of the joint 20. The joint 20 is provided with a packing 21 that comes into contact with the annular projection 11A of the inner plug 11 when the spout 3 is attached.

Next, the operation of the present embodiment having such a configuration will be described.

In the case where the cartridge container 1 is used as an ink container to be supplied to a printing press, the cartridge container 1 is initially in the state of FIG. 9 in which the upper half container section 1B is folded into the lower half container section 1A. The highly viscous ink is filled from the spout 3. In this case, the inner plug 11 is not attached to the spout 3. This brings the cartridge container 1 into the state shown in FIG. The ink can be filled after the cartridge container is inflated by blowing compressed air in advance.

Next, for example, an inner plug 11 in which a film 12 as shown in FIG. 3a or 3b is heat-sealed in advance is inserted into the spout 3, and the spout 3 is capped with a cap 3A.

Thereafter, the cartridge container 1 is accommodated in a cardboard box or the like with only the spout 3 protruding outside, and sent to the printing press side.

Next, the cap 3A is removed from the spout 3. In this case, the spout 3 has an inner plug heat-sealed with the film 12.
Since 11 is inserted, even if the cap 3A is removed, the ink inside does not leak. In addition, although the slits 13 and 14 are formed in the film 12, the ink does not leak from the slits 13 and 14 because the ink has a high viscosity.

Next, as shown in FIG. 1, the tip 22 of the joint 20 of the printing press is mounted in the spout 3 of the cartridge container 1. In this case, although the film 12 is broken by the distal end portion 22 of the joint 20, the slits 13 and 14 are formed in the film 12 in advance as described above.
Is easy to break. Therefore, the film 12 can be reliably broken, and the ink can be reliably sucked out through the spout 3.

When the spout 3 is attached to the joint 20, the cartridge container 1 is pressed against the joint 20, and the packing 21 contacts the annular projection 11A of the inner plug 11. In this way, the tightness between the spout 3 and the joint 20 is ensured.

Next, the ink in the cartridge container 1 is taken out from the outlet 3 by suction with a plunger pump or the like on the printing press side and supplied to the printing press.

Flexible upper half container section 1B due to ink consumption
Is gradually shrunk and deformed, and finally folded into the lower half container section 1A as shown in FIG. At this time, the inner upper half container section 1B comes into contact with the inner wall of the lower half container section 1A via a slight gap, and therefore, the ink is consumed with little remaining. Since there is a small gap, the suction force does not reach all or ink remains in a part. Further, since there is a space in the vicinity of the spout 3 where the suction force acts, the last ink gathers there and is sucked out. In addition, the line seal part in the flange 4 facilitates folding of the side surface when folded into the lower half container section 1A of the upper half container section 1B.

In the above-described embodiment, an example is shown in which the inner stopper 11 in which the film 12 is heat-sealed is inserted into the spout 3, but the invention is not limited to this, and the ink is directly charged into the spout 3 after the ink is filled in the cartridge container 1. Alternatively, the film 12 may be heat-sealed. Further, the shape of the slit is not limited to the embodiment, and various other shapes can be applied.

〔The invention's effect〕

As described above, according to the present invention, since a film in which a slit is formed in advance is attached to the spout, when the tip of the joint is inserted into the spout, the outflow of the contents at the time of the joint is prevented. And the film can be easily broken by this tip. Therefore, the ink in the cartridge container can be reliably sucked out through the broken film.

[Brief description of the drawings]

FIG. 1 is a view showing a state where a cartridge container according to the present invention is inserted into a joint on a printing press side, and FIG. 2 is a view showing a state where a cap is applied to a spout, and FIGS. 3a and 3b. The figure is a plan view of the film of the spout, FIG. 4 is a partial sectional view of the inner stopper, FIG. 5 is a perspective view of an example of the cartridge container of the present invention, and FIG. FIG. 7, FIG. 7 and FIG. 8 are cross-sectional views showing different examples of the junction of the upper half and lower half container sections, FIG. 9 is a perspective view of the folded state of the cartridge container of FIG.
The figure is a longitudinal sectional view. 1 ... cartridge container, 1A ... lower half container section, 1B ... upper half container section, 3 ... spout, 4 ...
… Flange, 11… Inner plug, 12 …… Film, 13,14 ……
slit.

Continued on the front page (72) Inventor Takehiko Bizen 1-1-1 Ichigaya-Kaga-cho, Shinjuku-ku, Tokyo Dai Nippon Printing Co., Ltd. (58) Field surveyed (Int. Cl. ⁶ , DB name) B41J 2/175

Claims (2)

(57) [Claims] 1. A lower half container section having an upward opening edge and having shape retention, and an upper half container section having a downward opening edge joined to the upward opening edge and made of a flexible sheet material. The lower half container section is provided with a spout, and the contents of the upper half container section are sucked out from the spout in the cartridge container in which the joint tip of the machine to be used is inserted into the spout. A cartridge container which is sometimes formed to be folded into the lower half container section, and has a slitted film attached to an end of the spout. 2. The cartridge container according to claim 1, wherein the film is fixed to an end of a cylindrical inner plug inserted into the spout.