JPS5940640B2 - Container for markers etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a container for writing such as a marker, and more particularly to an improvement of a container for writing containing pigment-dispersed ink or paint.

[Prior art and problems to be solved by the present invention]

Conventionally, as this type of writing container, a so-called pumping type container is known.

For example, in the container shown in Utility Model Publication No. 45-26652, a writing tip 5 is provided slidably with respect to the container opening 3, and the lower end of the writing tip 5 is positioned inside the cylindrical portion 13. The ink is introduced into the cylindrical portion 13 and impregnated into the writing tip 5 by reciprocating the writing tip 5 with the container upside down when writing without directly contacting the ink 18 in the ink tank 1. It is something.

However, this known container has the following drawbacks.

(1) In order to allow the writing tip 5 to slide back and forth, the writing tip 5 is loosely fitted into the container opening 3 through a gap, and ink leaks outside from this gap, causing so-called drop-off. It causes

(2) The cylindrical portion 13 is removed by one reciprocating motion of the writing tip 5.
Since only the ink introduced into the writing tip 5 is impregnated into the writing tip 5, it is easy to run out of ink, and when writing continuously, the writing tip must be moved back and forth frequently.

In the present invention, in order to eliminate the above-mentioned drawbacks, the inside of the container is used as an ink storage part, the writing tip is fixed to the mouth of the container, and the lower end of the writing tip is made to directly face the inside of the container, so that when writing, When the container is turned upside down, ink can directly soak into the lower end of the writing tip (the end facing into the container).

However, if the writing tip is fixed to the container mouth and there is no gap between the writing tip and the container mouth, writing creates a negative pressure inside the container.

Therefore, in order to prevent this, in the present invention, a separate vent pipe is provided to communicate the inside of the container (the ink storage section) and the outside of the container (inside the cap).

Although Japanese Utility Model Publication No. 45-i-8890 discloses a structure in which the inside and outside of a container are communicated by a ventilator, this ventilator cannot be directly applied to the present invention.

That is, in the present invention, by providing such a ventilation tube, the internal pressure of the ink storage part in the container and the internal pressure in the cap are maintained at the same pressure. The pigment in the tip settles, causing uneven writing, and (2) when the container is turned over or turned upside down while being carried, there is a risk that ink may leak to the outside via the writing tip.

Therefore, in the present invention, as a countermeasure against this point,
The cap was provided with an inner cylinder, which cut off communication between the internal pressure of the container and the internal pressure of the cap except when writing.

[Solution means of the present invention]

As described above, the container of the present invention has a cylindrical part erected at the mouth of the container body, a writing tip erected within this cylindrical part,
The lower end of the writing tip faces into the ink reservoir inside the container so that the ink can be directly immersed into the writing tip when the container is reversed, and a ventilation tube is placed upright along the cylindrical portion to prevent the inside of the container from being exposed. The inside of the ink reservoir is connected to the outside of the container, that is, the inside of the cap, and the opening of the vent cylinder is closed by an inner cylinder vertically disposed from the top plate of the cap, thereby blocking communication between the internal pressure inside the cap and the internal pressure of the ink reservoir. It is something to do.

In one modification of the invention, the space around the chip is divided into a plurality of compartments in order to minimize settling of the pigment within the chip even after a certain period of time has elapsed.

In another modification of the invention, a wettable filler is attached to the upper part of the cap that contacts the tip of the tip to prevent the pigment from descending from the tip of the tip and decolorizing the cap.

Note that the scope of the present invention is not limited to marker containers, but is applicable to writing and painting tools in general.

[Action and effect]

With the above-described structure, the internal pressure of the cap and the internal pressure of the ink reservoir are cut off except when writing, and even if the container is held upright, the pigment will settle inside the writing tip. Therefore, uneven writing does not occur.

In addition, since communication between the inside and outside of the container is blocked in this way,
When carrying the container, ink will not leak outside via the writing tip.

Also, unlike the pumping method, there is no gap between the writing tip and the container mouth, so there is no dripping of ink.
Further, continuous writing is possible without repeating the pumping operation.

Example Next, embodiments of the present invention will be described based on the accompanying drawings.

In FIGS. 1 and 2, 10 is a container body, 12 is a top plate provided at the mouth of the container body, and 14 is a cylindrical portion provided above the top plate.

Reference numeral 16 denotes a writing tip, which is disposed within the cylindrical portion 14 with a gap between it and the inner peripheral surface of the cylindrical portion 14.
The lower part of the container 1 passes through a clamping hole 18 provided in the top plate 12.
0 Projects inward.

The chip 16 has a stepped portion with a smaller diameter at its lower portion, and the clamping hole 18 of the top plate 12 also has a corresponding stepped portion, thereby securely holding the chip 16.

Reference numeral 20 denotes a rib that projects radially inward from the inner circumferential surface of the cylindrical portion 14, and abuts against and holds the circumferential surface of the tip 16.

A holding cylinder 22 is provided projecting below the clamping hole 18 .

As clearly shown in FIG. 5, this holding cylinder 22 has an appropriate number of slits 24 in the vertical direction, and the slits 24 elastically hold the lower end of the chip 16.
When the container body 10 is turned upside down for writing, ink (2) in the container body 10 is allowed to pass through the slit 24 and enter the lower end of the tip 16 from the side.

A ventilation cylinder 26 is provided along the side of the cylindrical part 14, and the internal space of the ventilation cylinder 26 opens at its upper end into the inner circumferential surface of the cylindrical part 14 to form a ventilation port 28. The lower end of the container 26 has an opening 30 inside the container body 10 .

A mounting cylinder 32 is provided protruding around the opening 30, and a ventilation pipe 34 is fitted into this.

In the figure, the ventilation pipe 34 is bent at the lower part and opened at the lower end 36.

Reference numeral 38 denotes a support leg extending downward from the lower bent portion 35 of the ventilation pipe 34, and its lower end reaches near the tail plug 40 fitted to the lower end of the container body 10. Even if the fitting between the trachea 34 and the mounting tube 32 is separated, the ventilation pipe 34 is prevented from completely separating.

Reference numeral 50 denotes a pot-shaped cap, and the lower outer wall is formed to fit in the vicinity of the top plate 12 of the container body 100.

Inside the cap 50, an inner cylinder 52 is installed vertically from the top plate.
When the cap 50 is fitted onto the container body 10, the inner cylinder 52
The outer circumferential surface of the cylindrical portion 14 is formed so as to come into sliding contact with the inner circumferential surface of the cylindrical portion 14 and close the vent hole 28 .

1 is ink, which is filled so that the water surface is located below the lower end 36 of the vent pipe 34 when the container body is in an upright state, as shown in FIG.

The opening at the lower end 36 of the vent pipe 34 is located approximately at the center of the container, so that this opening does not penetrate into the ink when the container body is upright, rolled over, or inverted. It is.

When the camp 50 is removed from the container body 10, a ventilation hole 54 is formed by the hollow interior of the ventilation pipe 26 and the ventilation pipe 34, respectively.
communicates the ink reservoir inside the container body with the outside of the container, that is, the inside of the cap, and as a result, outside air flows into the inside of the container, so that the ink (2) flows out via the chip 16.

When writing, the container is held upside down, and the ink inside the container moves to the top side of the container (in the upside down position, the bottom).
In this case, since the opening at the lower end 36 of the vent pipe 34 is provided with a sufficiently small diameter, ink hardly flows into the vent pipe 34.

When the cap 50 is closed after writing, the vent 28 opens into the inner tube 52.
The vent hole 54 is closed, and communication through the vent hole 54 is cut off.

At this time, as the ink tries to flow out through the chip 16, the inside of the container becomes negative pressure, and the ink does not flow out any further, and even if some ink accumulates in the vent hole 54. 7, it does not flow out to the outside, that is, into the cap 50 due to the blockage by the inner cylinder 52.

When the cap 50 is fitted in this way, no matter what attitude the container body 10 is in or how strongly you shake it, the ink inside the container will never enter the vent hole 54. However, leakage to the outside is completely prevented.

Furthermore, when writing with the cap 50 removed,
Even if the ink I in the vent hole 54 were to flow out, the vent hole 28 is provided on the inner circumferential surface of the cylindrical portion 14, so that the ink I that has flowed out will exit to the tip 16 side.

Therefore, your hands will not get dirty with ink when writing.

Note that the diameter of the opening at the lower end 36 of the ventilation pipe 34 is determined as follows.

In other words, even if ink (1) once flows into the vent pipe 34, when the container is returned to an upright position, surface tension will prevent the ink from forming a film at the opening of the vent pipe (so that the ink will flow out to the outside). It is determined by taking into account the viscosity of

In the present invention, the chip 16 is further supported by the top plate 12 in a band shape.

That is, the top plate 12 is relatively thin, and therefore the contact area with the chip 16 is small.

If this contact area is small, a resin film will be formed around the tip and the writing ability will be impaired, but in the present invention,
Without such disadvantages (you can obtain permanent writing ability).

FIG. 3 shows a modification of the ventilation pipe 34 in the previous embodiment, in which a ball valve mechanism is provided at the lower end 36 of the ventilation pipe 34.

That is, 60 is a ball valve, and 62 is a lid for preventing the ball from escaping. In this modification, the ball 60 is in the position shown in the figure when the container is upright, and when the container body is tilted for writing. In this case, if the ball 60 quickly closes the upper part of the bent part 35, the ink I may temporarily close the upper part of the bent part 35.
Even if the liquid flows into the inside of the liquid, it can be prevented from flowing further upward, which is more preferable.

FIG. 4 shows another modification of the invention.

In the case of conventional pigment-dispersed marker tools, after long-term storage, the pigment impregnated into the writing tip settles downward within the tip, and decolorization occurs at the upper end of the tip.

In order to solve this problem, in the present invention, the space around the chip is divided into a plurality of compartments.

Reference numeral 70 denotes a ring-shaped partition plate fitted directly above the rib 20 of the cylindrical portion 14, and its inner peripheral edge is pressed against the outer peripheral surface of the writing tip 16.

Reference numeral 72 denotes a similar ring-shaped partition plate provided inside the inner cylinder 52 of the cap 50, and the circular hole in the center has a smaller diameter than that of the partition plate 70.

The tip 16 has an upper portion 16' so as to be inserted through the septum 72.
is formed with a small diameter.

In this way, the space around the chip 16 is replaced by the partition plate 7.
0.72 into three airtight compartments.

Therefore, even if the pigment settles within the chip 16, the sedimentation is subdivided into each compartment.

That is, for example, the stop portion 16 of the chip above the partition plate 72
Even if the pigment impregnated in ' is settled, the maximum amount is up to the level of the partition plate 72.

Similarly, the pigment impregnated into the chip portion between the partition plates 70 and 72 does not settle below the partition plate 70.

In this way, when starting writing after a long period of coexistence, the condition for smooth writing is that the pigment that has settled to the position of the partition plate 72 only needs to reach the tip of the tip 16, which significantly shortens the time required to start writing. It is possible to convert

If this partition plate is used in combination with an ink wetting material that contacts the tip end of the chip, which will be described later, it is possible to almost eliminate the deterioration of writing problems after long-term storage.

In addition, in order to prevent the tip 16 from being removed together when the cap 50 is removed when the tip 16 is fixed to the partition plate 72 by resin or the like, a radial pin 88 provided in the cylindrical body 14 of the container body 100 The chip 16 is fixed.

This embodiment also provides a solution for higher pigment specific gravity and higher settling speed.

That is, the diaphragm 72 forms a part of another cylindrical body 80 inserted into the inner cylinder 52, and the cylindrical body 80 has a top plate 82 at its upper end and a bottom plate, which is the diaphragm 72, at its lower end. It is made of a cylindrical body, and a filling 84 made of a wettable material is disposed above the inside.

The lower end surface of the filler 84 is made of a flexible material so that it can freely follow the shape of the upper end of the writing tip 16.

When the chap 50 is fitted into the container body 10, the filling material 8
4 is always in contact with the writing tip 16.

Generally, containers using pigments with high specific gravity are used, for example,
When storing for a long period of 2 years, the container is inverted to prevent the pigment from settling significantly downward within the chip. In an inverted state, there is a possibility of excessive precipitation at the lower end.

However, with the above configuration, the pigment passes through the upper end of the chip and is accumulated in the filler 84, so this drawback can be avoided.

FIG. 5 shows another modification, in which a cylindrical portion 19 concentric with the holding cylinder 22 is provided on the outside thereof, and a filler 21 made of an absorbent material such as felt is provided inside the cylindrical portion 19.

Even when a polar material is used for the chip 16 and the ink has a low viscosity, the flow rate can be adjusted using this filler.

FIG. 6 shows another embodiment of the invention, primarily a large diameter marker or a paint container with a larger capacity than the marker.

A felt having a rectangular cross section is used as the writing tip 116, and a steady rest plate 115 is provided at the upper end of the cylindrical portion 114 to support it.

Since the steady rest plate 115 is thus provided at the upper end, the ventilation port 128 of the ventilation cylinder 126 is provided outside the cylindrical portion 114, that is, on the outer peripheral side of the ventilation cylinder 126.

Therefore, the inner cylinder 152 of the cap 150 slides against the outer circumferential surface of the ventilation cylinder 126 and closes the ventilation port 128.

A small hole 1 is provided in the side near the lower end 136 of the ventilation pipe 134.
42 are provided.

Further, around the lower end portion 136 of the ventilation pipe 134, a cylindrical baffle plate 139 surrounds the ventilation pipe 134.

A sloped bottom 141 is provided on the jammer plate 139, and a small hole 143 is formed in the lower side of the sloped bottom 141.

Even when the container is vibrated, the baffle plate 139 prevents the lower end 136 of the vent pipe 134 from coming into direct contact with the ink.

Further, even if ink enters the vent pipe 134, when the container is returned to the royal state, the ink will flow out and return to the outside of the jammer plate 139 via the inclined bottom 141 and the small hole 143. .

Other parts corresponding to the reference numbers in the first embodiment are 10.
Indicated by numbers with 0 added.

In any of the above embodiments, if the cap is left for more than a few minutes with the cap removed, the resin may solidify on the chip surface to form a film that may no longer withstand writing.

In this case, the openings 28,1 in the inner cylinders 52,152
If a hole or notch is made at the location corresponding to 28, and the cap is rotated so that the two match and the container is turned upside down, the internal and external pressures of the container can be made the same while the cap is left open. , the chip can be refilled with ink.

In this case, the operation is facilitated by providing positioning marks on the cap and the container body.

Such means can also be used when filling the chip with ink during the manufacturing process.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, FIG. 2 is a partially cutaway exploded perspective view of both figures, and FIG. 3 is a partially longitudinal sectional view showing a modification of the embodiment. 4 is a partially omitted longitudinal sectional view showing another modification example, FIG. 5 is a partially omitted longitudinal sectional view showing another modification example, FIG. 6 is a longitudinal sectional view showing another embodiment, and FIG.
The figure is the previous ■-■ cross-sectional view. Explanation of symbols, 10... Container body, 12...
...Top plate, 14...Cylindrical part, 16...
Writing tip, 16'... Top of tip, 18
... Clamping hole, 19 ... Cylinder part, 20 ...
...Reply, 21...Filling material, 22...
...Holding tube, 24...Slit, 26...
...Vent pipe, 28...Vent, 28...
・Opening part, 30...Opening, 32...Mounting tube, 34...Vent pipe, 35...Lower bent part of vent pipe, 36...・・・Lower end of ventilation pipe, 3
8...Lower bent part of ventilation pipe, 40...
Tail plug, 50...Cap, 52...Inner cylinder, 54...Vent hole, 60...Ball valve, 70,72...・Partition plate, 84... Filler, 88... Pin, ■... Ink,
110... Container body, 112... Top plate, 114... Cylindrical part, 115... Steady rest plate, 116... Writing Chip for 118...
...Holding hole, 126 ... Ventilation cylinder, 128.
...Vent, 128...Opening, 130
......Opening, 132...Mounting tube, 134
...Vent pipe, 135...Lower bent part of vent pipe, 136...Lower end of vent pipe, 139.
...Block board, 140...Tail plug, 141
... Slanted plate, 142, 143 ... Small hole, 150 ... Cap, "152 ......
Inner cylinder, 154...Vent hole, 184...
filling.

Claims (1)

[Claims] 1A, container body with ink storage inside 10:110
B, the cylindrical part 14; 114 installed upright on the top plate 12; 112 of the container body 10; 110, and C0 the cylindrical part 14;
A writing tip 16 is installed inside the writing tip 114 and has a lower end facing into the container so that it can be directly immersed in the ink when the container is reversed.
116; D. A cap 50; 150 that is fitted over the top of the container body 10; 110; E. An ink reservoir inside the container body 10; 110 that is erected along the cylindrical portion 14; part and cap 50
F. A vent hole 28; 128, which the cylindrical portion 14 opens in the inside of the cap 50; 150; The vent 28; 12
152. A container for a marker or the like, comprising: an inner cylinder 52; 152 that closes the inner cylinder 8 and blocks the internal pressure inside the cap and the internal pressure of the ink storage part in the container.