JP2000272646A - Ink can - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a seal-up perch unnecessary for a twist can or the like which is decompressed at its inside and to make a cover attachable and detachable simply and certainly by a method wherein a means for holding the cover for a printing ink container for sealing-up is not made a caulking, but a one utilizing meshing of protuberances with each other. SOLUTION: An ink can 1 comprises a cover 2 and a container body 3. The cover 2 has a top face 4 and a side face 5, and a groove 6 for housing a packing therein is provided between the top face and the side face. While an outwardly-curled-up part 7 is provided at the lower end of the side face 5, inwardly-projecting protuberances 8 are provided at appropriate intervals at the side face 5 on each of inclined positions. The upper end of a side face 10 of the container body 3 is curled up inwardly so as to be fitted close to the packing 15. A string 12 is provided at the lower side of a part 11 to be covered by the side face of the cover at the upper part of the side face 10 and made to project toward the outside. Furthermore, outwardly-projecting protuberances 13 are provided at positions corresponding to the protuberances 8. Then, the cover 2 is elastically held at the upside of the container body 3 by meshing of the protuberances 13 and 8 on both sides.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink can.

[0002]

2. Description of the Related Art There are various types of printing inks. Among them, those which solidify and form a film when exposed to air (oxygen) prevent exposure to air (oxygen). For this reason, after packing in a can, the top surface is covered with a perch made of vinyl chloride and further covered.

[0003] However, if a perch made of vinyl chloride is put on the top surface of the ink, the cost of the perch made of vinyl chloride is extra, and the manual work of putting the perch is quite troublesome. It cannot be adapted to perform automatically. Further, since the ink adheres to the perch, the ink is wasted by the amount of the ink adhered when the perch is removed.

[0004] Instead of using perch, instead of using perch, vacuum is applied around the can filled with ink to remove oxygen, and then a nitrogen atmosphere lower than atmospheric pressure is used. An ink can that does not require perch by sealing the ink can with a lid having a packing is known.

[0005]

The above-mentioned draw-can which has a lid sealed in the draw-can cannot be made too thin due to the nature of the draw-can, and the edge of the lid is caulked after the lid is put. The rigidity of the container is also required in that the container and the lid are tightly packed by the operation.
Because the lid-to-container connection is tight, the edge of the lid is in close contact with the perimeter of the can and considerable force is applied. This can
Regardless of whether the lid is opened against the first decompression or the second time when the lid is opened and the inside of the container is no longer decompressed, the rigidity of the squeezing can and the method of coupling the lid and the container described above For this purpose, insert appropriate tools between the lace of the container (the part protruding along the periphery of the container located just below the rim of the lid having the peripheral surface covering the upper part of the body) and the rim of the lid. If you do not open it, it is not easy to open the lid, and if you close it tightly and open it again, you can not open it by hand alone.

Also, when the edge of the lid is swaged, the swaging must be carefully performed with a high-performance swaging machine so that the force required to remove the lid from the container does not change.

Further, when the swaging force is weakened, or when the elasticity between the can and the lid is weak, the lid once opened is easy to remove and the sealing is incomplete. Furthermore, the upper end of the container is sealed with the packing by a caulking force, and the packing may lose the sealing property if the elasticity that plays a role of sealing the container is lost.

On the other hand, a can manufactured by drawing and drawing requires a cost in the manufacturing process itself and requires a certain thickness in nature as described above. Therefore, the material cost is reduced by reducing the amount of metal used. Cans cannot be manufactured.

[Means to solve the problem]

The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems. As a result, instead of caulking, a means for firmly holding the lid of the printing ink container in a container is used. The above-mentioned problem in the relationship between the printing ink container and the lid can be solved by utilizing the intermeshing between the inks, and in particular, by realizing the twisting can that twists and closes such an intermeshing. And completed the present invention. That is, the present invention is as follows.

[0010] 1. What is claimed is: 1. A container for an ink container, which comprises a lid and a container body having a port for receiving the lid, the container being internally replaced with nitrogen under reduced pressure, wherein the container has a sealed portion between the lid and the port of the container body. Having one or both of the lid and the container,
The container has a protrusion for holding the lid in the container, and the number, shape and position of the protrusion may be any one of the lid and the container when the mouth is closed with the lid. The protrusions on both sides cause the protrusions to engage with each other between the lid and the mouth so that the lid and the mouth are pressed uniformly toward each other at the sealing portion. When the inside of the container is not in a depressurized state, the lid and the mouth are engaged with each other without any tool by resiliently releasing the engagement between the container body and the lid. A container characterized in that it can be easily removed from the container.

2. The container main body and the lid are made of metal, and the lid has a peripheral surface extending downward from the mouth of the container main body so as to cover a predetermined width of an upper peripheral portion, and the projecting portion has a peripheral surface of the lid. And at the upper part of the outer periphery of the container, several are provided at corresponding positions for meshing, each of which is formed by a press as a projecting part which is rounded inward and outward, respectively. The sealing portion,
2. The container according to the above item 1, wherein a seal is provided between a packing provided on a lid and an edge of a mouth of the container body.

3. The laterally elongated protrusion is formed so that the peripheral surface of the lid and the upper peripheral portion of the container are both short cylindrical shapes, and the peripheral surface of the lid can be screwed into the upper peripheral portion of the container. Part is inclined from the horizontal direction, and the lid can be closed to a position where the packing of the lid and the edge of the mouth of the container body come into contact with each other without collision of the protrusions with each other. 3. The container according to the above item 2, wherein a portion not having the protruding portion is present on a peripheral surface of the lid and an upper portion of an outer periphery of the container. (Hereinafter, this container is called a twist can.)

4. The container body is manufactured by connecting thin metal plates without using drawing and drawing,
4. The container according to the above item 2 or 3, wherein elasticity for disengaging the lid and the mouth from each other is easily obtained.

5. 4. The container according to the above item 3, wherein the main container has an inverted truncated conical shape in which a peripheral surface wider than the bottom is slightly inclined from a vertical line so that the main container can be stacked.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a printing ink can of the present invention. The ink can 1 includes a lid 2 and a container body 3.
This container is a seam made by welding rather than a drawn can in the point that the amount of material and the manufacturing cost are low.
Four cans are preferred.

The lid 2 has an upper surface 4 and a side surface 5, and a groove 6 for accommodating a packing 15 is provided between the upper surface 4 and the side surface 5. The lower end of the side surface 5 has an outwardly rounded portion 7. Also, the side surface 5 is provided with an inward projection 8 that is slightly inclined from horizontal to one side at an appropriate interval.

On the other hand, the container body has a bottom surface 9 and a side surface 10, and an upper end 16 of the side surface 10 is rounded inward so as to be in close contact with a packing 15 housed in the groove 6 of the lid 2.
Portion 11 covered by upper lid side surface of side surface 10 of container body
On the lower side, a string 12 is provided and protrudes outward. In the part 11 covered by the lid side surface, at an appropriate interval,
An outward projection 13 is provided at a position corresponding to the inward projection 8 of the lid 2.

Part 1 Covered by Side of Lid on Top of Container Body 3
When the cover 2 is put on the cover 1 and the protrusions 8 on the inside and the protrusions 13 on the outside are covered at positions where they do not collide, the cover 16 is pushed to the lowest position where the upper end 16 and the packing 15 collide without applying force. When the lid is rotated in this state, the inward projection 8 and the outward projection 13 are engaged with each other, and the upper end 16 of the side surface of the container body 3 and the packing 15 are strongly pressed by the inclination thereof, so that the container Is sealed.

Particularly, in the case of the metal container body 3 and the lid 2 whose surfaces are not polished, since the frictional force is not always small, even if the container body is closed, the container body 3 and the lid 2 are relatively moved by hand. It is not easy to rotate. However, when using an automated filling device, it is technically necessary to relatively rotate the lid 2 and the container body 3 with a uniform and strong force over the entire circumference against such frictional force. Easy.

On the other hand, when removing the covered lid from the container body, the lid 2 can be removed simply by pushing up the lid. However, when the inside is under reduced pressure, it may be difficult. In this case, a suitable tool (a tool such as that shown in FIG. 3 is convenient) is attached to the string 12 of the container body 3 and the lid 2.
The lid 2 can be opened by inserting and prying out between the part 7 which is rounded outside. Once the lid has been opened, the pressure can be removed, and the lid can then be easily lifted by hand.However, in the can of the present invention, the lid can be closed again so that the seal can be maintained intact. is there.

In the case of a conventional ink can by caulking,
It is thought that it is necessary to insert a suitable tool between the string 12 and the rounded portion 7 on the outside of the lid 2 to pry open both when first prying open and when prying again with the lid. The lid 2 is elastically held on the container body 3 by the engagement of the outward projections 13 and the inward projections 8 with, for example, rounded projections. The lid 2 can be detached from the container body 3 by applying a force to lift the lid that disengages the projections against the elasticity of the lid 3.
Therefore, in the case of a can once opened, the lid can be closed again so that the sealing is completely maintained, and once the lid is opened against the decompression, the can is manually opened by the hand. Easy to do. Closing the can can be easily performed by a human hand by pressing the lid onto the container body 3 by setting the relative position between the lid and the main body to the position where the outward projection 13 and the inward projection 8 correspond to each other.

Next, the procedure for filling the ink into the container using, for example, an automatic filling machine will be described below. No perch is used in the ink can of the present invention. Instead, the interior of the can must be replaced with nitrogen under reduced pressure so that oxygen does not enter the interior of the can. Use a filling device that can be lowered. When the ink is completely filled in the main container 3 up to just above the string portion, the inside of the filling device, that is, the periphery of the can is evacuated while the lid is held at a remote position above the main container. Then, nitrogen is introduced at a pressure below atmospheric pressure, the part holding the lid of the filling device pushes the lid down and further closes the lid clockwise. Thereby, the upper end of the side surface of the main body container and the packing of the lid are sealed, and the inside of the container is replaced with nitrogen and the reduced pressure is maintained. This can prevent solidification of the surface of the ink.

[0023]

[Effect of the present invention] a) Since it is not necessary to caulk the lid to the outside of the main container, the filling device can be simplified. B) When a thin metal plate is joined to produce a can, the lid and the main container have high elasticity. Therefore, it can be said that the lid is covered and fixed to the main container by a method suitable for the manufacturing method. That is, the present invention is very suitable for making the can thin and inexpensive. C) Since it is more appropriate to use a can for drawing without drawing, it is easy to provide projections due to its thinness.
Easy to manufacture. D) Since the protrusions elastically mesh with each other, for example, a force is reliably applied to seal the packing of the lid and the upper end of the side surface of the main body container, so that reliable sealing can be achieved. E) In the case of a twist can, the force for pressing the lid against the container body can be easily adjusted. F) In the case of a twisted can, the lid can be closed in some cases without rotational movement. G) When opening the lid, it is possible to easily open the lid without adversely affecting later sealing by lifting the lid without tools by a person without a rotating motion. H) Even if the lid is opened, when the lid is closed again, the force of pressing the lid against the main body is retained by the elastic engagement of the projections, so that the sealing can be kept intact. I) When the projections that engage with each other are slightly inclined from the horizontal, the force for pushing down the lid can be adjusted by appropriately devising their positions. D) Good sealing performance eliminates the need to use a perch to prevent solidification of the surface, eliminates manual work, and can be adapted to automatic filling machines.

[Brief description of the drawings]

FIG. 1 is a front view showing a lid and a container of a specific example of an ink can of the present invention.

FIG. 2 is a cross-sectional view showing a cross section of a part of the ink filling can in a state where two container bodies of the specific example of FIG. 1 are stacked and further covered.

FIG. 3 is a plan view showing the tool used in the first case of opening the lid if necessary.

FIG. 4 is a schematic diagram of a partially enlarged cross section at another position in a state similar to FIG. 2;

FIG. 5 is a schematic diagram of an enlarged cross section of an upper portion of a container body of one embodiment of the ink can of the present invention.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiromitsu Mogami 8-35-38 Aoyagi, Soka-shi, Saitama F-term in Mogami Can Co., Ltd. FB05 GA02 GA08 GB02 GB12 HA03 HB04 HD01

Claims (5)

[Claims] 1. A container for an ink container, which comprises a lid and a container body having a port for receiving the lid, the interior of which is replaced by nitrogen under reduced pressure. A mouth and a seal, and either or both of the lid and the container have a protrusion for holding the lid to the container, and the number, shape and position of the protrusion are When the lid is closed with the lid, the projection on either or both of the lid and the container causes the lid to engage with the mouth with the projection, and It is determined that the lid and the mouth are pressed uniformly in the direction of each other in the sealing portion, and the engagement of the lid and the mouth with each other is performed when the inside of the container is not in a reduced pressure state. The lid can be easily removed from the container at all times without tools by disengaging the lid due to the elasticity between the container body and the lid A container characterized by being engaged. 2. The container body and the lid are made of metal, and the lid has a downwardly extending peripheral surface that covers a predetermined width of an upper part of an outer periphery from a mouth of the container body. On both the peripheral surface of the lid and the outer peripheral upper part of the container,
There are provided several at corresponding positions for meshing, each having a linearly and horizontally elongated shape formed as a rounded inward and outward protrusion by a press, respectively. The container according to claim 1, wherein a seal is provided between a packing provided on the lid and an edge of a mouth of the container body. 3. The container according to claim 1, wherein the peripheral surface of the lid and the upper peripheral portion of the container both have a short cylindrical shape, and the peripheral surface of the lid is screwed into the upper peripheral portion of the container. The elongated projection is inclined from the horizontal direction, and the projection is closed to a position where the packing of the lid and the edge of the opening of the container body come into contact with each other without collision between the projections. The container according to claim 2, wherein a portion not having the protrusion is present on a peripheral surface of the lid and an upper peripheral portion of the container so as to be able to be formed. 4. The container body is manufactured by connecting thin metal plates without using drawing and drawing, so that it is easy to obtain elasticity for disengaging the lid and the mouth from each other. The container according to claim 2, wherein the container is formed. 5. The container according to claim 3, wherein the main container has an inverted truncated conical shape in which a peripheral surface wider than the bottom is slightly inclined from a vertical line so that the main container can be stacked. .