JP6601958B2 - Ink replenisher - Google Patents

Description

  The present invention provides a pen tip that can hold ink in an impregnated state, a shaft cylinder member that holds the pen tip in a protruding state at the tip, and an ink provided between the pen tip and the pen tip. The present invention relates to an ink replenishing device for replenishing ink to an ink pen having a circulated ink holder.

  A pen nib capable of holding ink in an impregnated state, a shaft cylinder member for holding the pen tip in a protruding state at the tip, and an ink holder provided in the shaft cylinder member and capable of distributing ink between the pen nib Ink pens having a body are well known. For example, there are a number of oil-based inks that have been commercialized at low cost.

  Since such an ink pen is inexpensive, it is generally disposable. However, ink replenishment has been studied in response to increasing consumer awareness of environmental protection (resource conservation).

  A typical example of a conventional ink replenishing device is described in Patent Document 1. FIG. 1 of Patent Document 1 is cited as FIG. As described in Patent Document 1, conventionally, an ink replenishing tool is placed on a substantially horizontal plane, and a pen tip of an ink pen (marking pen) is inserted into the ink replenishing body in a vertically downward orientation. .

Japanese Patent No. 4848544

  In the ink replenishing device described in Patent Literature 1, the replenished ink is replenished against gravity. Therefore, the ink replenishment speed is slow. Such an ink replenishment format is referred to as an inverted ink replenishment format.

  The inventor actually measured 78% ink (1.09 g) for a commercially available ink pen of a thin round core type with an injection amount of 1.4 g, and then measured the ink replenishment amount by the inverted ink replenishment format. As a result, 10 minutes later: 6% (0.08 g), 1 hour later: 19% (0.26 g), 2 hours later: 25% (0.36 g), 12 hours later: 28% (0.39 g) That was the result.

  The present invention has been made in view of the above knowledge, and an object thereof is to provide an ink replenishing device capable of shortening the ink replenishing time.

The present invention provides a pen tip that can hold ink in an impregnated state, a shaft cylinder member that holds the pen tip in a protruding state at the tip, and an ink provided between the pen tip and the pen tip. An ink replenishing device for replenishing ink to an ink pen having a circulating ink holder, an ink replenishing main body having a pen point opening capable of receiving a pen point, and for the pen point A cap member that closes the opening so as to be openable and closable, and the cap member includes a holding hole into which a rear end side of the ink pen is inserted, and a bottom portion that is provided on a side facing the holding hole and can be supported by a flat surface. When the cap member is placed on a substantially horizontal plane by the bottom portion, the ink pen whose rear end side is fitted into the holding hole is maintained in a substantially vertical posture, and the holding Hole in a circle Is Jo, the bottom is circular in a plan view, the diameter of the bottom is an ink refilling device, characterized in that at least three times the diameter of the holding hole.

  The ink replenishing device of the present invention is planned to replenish ink with the pen tip of the ink pen vertically upward. The ink replenished in such a posture is replenished while being supported by gravity, so the ink replenishment speed is high (fast). Such an ink replenishment format will be referred to as an upright ink replenishment format. According to the present invention, the ink pen is maintained in a substantially vertical posture by fitting the rear end side of the ink pen into the holding hole of the cap member in a state where the cap member is placed on a substantially horizontal plane by the bottom. Therefore, ink replenishment by the upright ink replenishment format can be performed more easily.

  As a specific form, the ink replenishing main body portion has a substantially axisymmetric appearance, and the cap member also has a substantially axisymmetric appearance, and the cap member is substantially formed by the bottom. When the ink pen is placed on a horizontal surface and the rear end side of the ink pen is inserted into the holding hole and the pen tip of the ink pen is received in the pen tip opening of the ink refill main body, the ink refill main body portion It is preferable that the cap member and the cap member have a concentric positional relationship. Thus, when a substantially axially symmetric form is employed, the posture balance at the time of ink replenishment with the upright ink replenishment format is good, and the ink pen can be prevented from falling. In particular, when the maximum outer diameter of the ink refill main body is 105% or less with respect to the maximum outer diameter of the cap member, the stability at the time of ink refilling by the upright ink replenishment type is high.

More specifically, if example embodiment, the diameter of the bottom portion is preferably larger than the height from the bottom to the bottom surface of the holding hole. Further, in this case, the depth of the holding hole is preferably larger than the diameter of the holding hole.
Even if a circular shape is not adopted, it is preferable that the area of the bottom in plan view is 9 times or more the cross-sectional area of the holding hole because the stability at the time of ink replenishment in the upright ink replenishment mode is high.

  The cap member has a weight of 3 g to 20 g, and the ink replenishing main body has a weight of 10 g to 100 g. High and preferable.

  According to the present invention, since ink is replenished with the pen tip of the ink pen vertically upward, the ink replenishment speed is high (fast). In particular, according to the present invention, the ink pen is maintained in a substantially vertical posture by inserting the rear end side of the ink pen into the holding hole of the cap member in a state where the cap member is placed on a substantially horizontal plane by the bottom portion. Therefore, ink replenishment by the upright ink replenishment format can be performed more easily.

It is a schematic sectional drawing of the ink replenishment instrument in one embodiment of this invention. It is a principal part enlarged view of the ink replenishing instrument of FIG. It is a schematic sectional drawing which shows a state when implementing the ink replenishment by an erect ink replenishment form using the ink replenishment apparatus of FIG. It is a schematic sectional drawing of the ink replenishing instrument in the 2nd Embodiment of this invention. It is a schematic sectional drawing which shows a state when implementing the ink replenishment by an upright ink replenishment format using the ink replenishment apparatus of FIG. It is the schematic (FIG. 1 of patent document 1) which shows the typical example of the conventional ink replenishing instrument.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 is a schematic cross-sectional view of an ink replenishing device according to an embodiment of the present invention, FIG. 2 is an enlarged view of a main part of the ink replenishing device of FIG. 1, and FIG. 3 is an ink replenishing device of FIG. It is a schematic sectional drawing which shows the state at the time of implementing the ink replenishment by an erect ink replenishment format using.
As shown in FIGS. 1 to 3, the ink replenishing device 10 according to the present embodiment includes a pen tip 21 that can hold ink in an impregnated state, and a shaft tube member 22 that holds the pen tip 21 in a protruding state at the tip. And an ink replenishing device for replenishing ink to the ink pen 20, which is provided in the shaft cylinder member 22 and has an ink holder 23 that can circulate ink with the pen tip 21.

  The ink replenishing device 10 in the present embodiment includes an ink container main body 11 in which ink is stored in a liquid state, two tubular ink communication members 12 provided so as to extend from the ink container main body 11, A filling member 13 provided so as to cover the extension side end portion 12e of the tubular ink communication member 12, a covering portion 14 covering the filling member 13 and having a pen tip opening portion 14r, and a pen tip opening portion And a cap member 40 that closes 14r so as to be openable and closable.

  The ink container main body 11 has an annular bottom 11c that can be supported by a flat surface, and the ink communication member 12 extends from the upper surface side of the ink container main body 11 in a direction substantially perpendicular to the bottom 11c. It is provided so that it can be put out. The pen tip opening 14 r is located further above the extension side end 12 e of the tubular ink communication member 12.

  In the present embodiment, the pen tip opening 14r is positioned at a height of 0.8 cm above the extension side end 12e of the tubular ink communication member 12. However, according to the knowledge of the present inventors, the preferable position of the pen tip opening 14r is a height in the range of 0.3 to 2.0 cm above the extension side end 12e of the tubular ink communication member 12. I just need it.

  Moreover, in this Embodiment, the internal diameter of the tubular ink communication member 12 is 2.5 mm each. However, according to the knowledge of the present inventors, in order to prevent ink from dropping (bottoming down) from the filling member 13 through the pen tip opening portion 14r during ink replenishment, the tubular ink communicating member 12 The inner diameter may be selected from a range of 1 mm to 7 mm.

  Moreover, in this Embodiment, the length of the tubular ink communication member 12 is 15 mm each. In the present embodiment, the number of tubular ink communication members 12 is two, and they are provided substantially parallel to each other and spaced approximately 9 mm substantially symmetrically with respect to the axis. According to such an embodiment, the replacement action of ink and air is more effectively promoted. From the experimental results by the present inventors, it has been found that if one tubular ink communication member 12 is in a state of supplying ink, the other tubular ink communication member 12 functions as an air ingress path. Yes.

  Further, the filling member 13 of the present embodiment is a substantially cylindrical filling, and the covering portion 14 covers the side covering portion 14 s surrounding the side of the filling member 13 and the lower portion of the filling member 13. The lower covering portion 14b and the upper covering portion 14u covering the upper portion of the filling member 13 are provided. The pen tip opening 14r is provided in the upper covering portion 14u. In the present embodiment, the side covering portion 14s and the lower covering portion 14b are integrated with the lower end portion of the tubular ink communication member 12. The side covering portion 14s and the upper covering portion 14u are fixed to the cylindrical portion 11a on the upper surface side of the ink container main body portion 11, and the cap member 40 is connected to the cylindrical portion 11a of the ink container main body portion 11. There is a screwing portion 40c to be screwed to the outer surface side.

  On the other hand, the cap member 40 includes a holding hole 44 provided on the upper surface side into which the rear end side 24 of the ink pen 20 is fitted, and a bottom portion 40b provided on the lower surface side facing the holding hole 44 and supported by a flat surface. When the cap member 40 is placed on a substantially horizontal plane by the bottom portion 40b, the ink pen 20 in which the rear end side 24 is fitted into the holding hole 44 is maintained in a substantially vertical posture ( (See FIG. 3).

As shown in FIGS. 1 to 3, the ink container main body 11 has a substantially axisymmetric appearance, and the cap member 40 also has a substantially axisymmetric appearance. 40 is placed on a substantially horizontal plane by the bottom 40b, the rear end side 24 of the ink pen 20 is inserted into the holding hole 44, and the pen tip 21 of the ink pen 20 is a pen of the ink container main body 10 (ink replenishment main body). When received in the front opening 14r (see FIG. 3), the ink container main body 10 and the cap member 40 are concentric with each other.
The ink container main body 11 includes an upper small-diameter cylindrical portion 11a, a lower large-diameter substantially cylindrical portion 11b, and a tapered transition portion 11t therebetween, and the substantially cylindrical portion 11b. The maximum diameter of the ink container is 70 mm, and the height of the ink container main body 11 is 64 mm.

The cap member 40 has a skirt portion 40s on the outer side of the screwing portion 40c, and the skirt portion 40s has a large diameter in a trumpet shape (roughly a truncated cone shape) downward from the upper end edge of the holding hole 44. Then, the bottom 40b is reached. In the present embodiment, the holding hole 44 is cylindrical, the bottom 40b is circular in plan view, the diameter of the bottom 40b is 68 mm, and the diameter of the holding hole 44 is 15 mm. Thus, according to the knowledge of the present inventors, it is preferable that the diameter of the bottom portion 40 b is not less than three times the diameter of the holding hole 44. Furthermore, the height from the bottom 40b to the bottom surface of the holding hole 44 is 44 mm. Thus, according to the knowledge of the present inventors, the height from the bottom 40b to the bottom surface of the holding hole 44 is preferably larger than the diameter of the bottom 40b. The depth of the holding hole 44 is 16 mm. Thus, according to the knowledge of the present inventors, the depth of the holding hole 44 is preferably larger than the diameter of the holding hole 44. Even when the circular shape is not adopted, according to the knowledge of the present inventors, if the area of the bottom portion 40b in plan view is 9 times or more the cross-sectional area of the holding hole 44, ink replenishment by the upright ink replenishment format High stability at time is preferable.
In addition, the cap member 40 has a weight of 10 g, and the ink container main body 11 has a weight of 80 g including 60 g of ink.

Now, as shown in FIG. 3, the ink replenishing device 10 of the present embodiment is scheduled to replenish ink with the pen tip 21 of the ink pen 20 in a vertically upward orientation. The ink replenished in such a posture is replenished while being supported by gravity, so the ink replenishment speed is high (fast).
Further, according to the present embodiment, the tubular ink communication member 12 moves the ink from the ink container main body 11 to the filling member 13 with high efficiency. This also increases the speed of ink replenishment.

  Further, according to the present embodiment, the tubular ink communication member 12 has a substantially vertical posture in the ink replenishment state in which the pen tip 21 of the ink pen 20 is inserted into the pen tip opening portion 14r in a vertically upward posture. In addition, since the pen tip opening portion 14r is preliminarily adjusted to 0.8 cm below the extended side end portion 12e of the tubular ink communication member 12, a more suitable ink replenishing state is realized. This numerical value of 0.8 cm can be changed within a range of 0.3 cm to 2.0 cm depending on the kind and properties of the ink.

  The present inventor consumed 78% of ink (2.97 g) for a commercially available ink pen with an ink injection amount of 3.8 g using the ink replenishing apparatus of the present embodiment, and then used an ink in an upright ink replenishment format. The replenishment amount was measured. As a result, 10 minutes later: 13% (0.49 g), 1 hour later: 62% (2.37 g), 2 hours later: 96% (3.66 g), 12 hours later: 98% (3.71 g) That was the result.

  In addition, the length of the ink pen 20 targeted in the present embodiment is 133 mm to the pen tip 21 and 115 mm to the upper end of the ink container main body 11 at the time of ink replenishment. It was also confirmed that it was possible to handle from 60 mm to 125 mm.

  Furthermore, according to the present embodiment, the filling member 13 is covered with the covering portion 14 (14u, 14b, 14s), and the pen tip opening portion 14r is set so that the pen tip 21 of the ink pen 20 is vertically upward. In this state, the upper covering portion 14u of the covering portion 14 comes into contact with the tip of the shaft tube member 22 of the ink pen 20 in an airtight state (see FIG. 3). Further, by adjusting the density of the filling member 13 in advance, even if the pen tip 21 of the ink pen 20 is inserted into the pen tip opening 14r in a vertically upward orientation, the ink is filled from the filling member 13. Leakage is suppressed. Specifically, the density of the filling member 13 is increased in the region in the vicinity of the extending end 12 e of the tubular ink communication member 12. Such local density adjustment is obtained by pressing the tubular ink communicating member 12 into the filling member 13 having a uniform density and locally pressing and compressing the filling member 13. If ink stays in a region where the density of the filling member 13 is high in the region near the extending end 12e of the tubular ink communication member 12, the communication action of the tubular ink communication member 12 is hindered, that is, movement of ink or air. Stagnate. This suppresses ink leakage.

  Further, since the inner diameter and the cross-sectional area of the tubular ink communication member 12 are not too large, the ink does not fall (drop) from the filling member 13 through the pen tip opening portion 14r when ink is replenished.

  Further, since the cap member 40 is screwed to the ink container main body 11, it is effective in preventing ink volatilization and the like.

  Furthermore, according to the present embodiment, in a state where the cap member 40 is placed on a substantially horizontal plane by the bottom portion 40b, the rear end side 24 of the ink pen 20 is fitted into the holding hole 44 of the cap member 40, thereby Since the ink pen 20 can be maintained in a substantially vertical posture, ink replenishment in the upright ink replenishment format can be performed more easily.

  In particular, the cap member 40 and the ink container main body 11 both have a substantially axisymmetric shape and are concentric with each other when the upright ink is replenished, thereby preventing the ink pen 20 from falling down. . Further, according to the knowledge of the present inventor, if the maximum outer diameter of the ink replenishing main body 11 is 105% or less with respect to the maximum outer diameter of the cap member 40, the stability at the time of ink replenishment by the upright ink replenishment type (In this embodiment, 70/68 = 103%).

  Furthermore, according to the present embodiment, the diameter (68 mm) of the bottom portion 40 b being three times or more the diameter (15 mm) of the holding hole 44 also contributes to posture stability during ink replenishment. Further, the fact that the height (44 mm) from the bottom portion 40 b to the bottom surface of the holding hole 44 is smaller than the diameter (68 mm) of the bottom portion 40 b also contributes to posture stability during ink replenishment. Also, the fact that the depth (16 mm) of the holding hole 44 is larger than the diameter (15 mm) of the holding hole 44 contributes to posture stability at the time of ink replenishment. In addition, while the weight of the cap member 40 is 10 g, the fact that the weight of the ink container main body 11 remains at 80 g also contributes to posture stability at the time of ink replenishment. According to the knowledge of the present inventors, if the weight of the ink container main body 11 is up to 100 g, sufficient posture stability at the time of ink replenishment can be obtained.

  Next, FIG. 4 is a schematic cross-sectional view of the ink replenishing device according to the second embodiment of the present invention, and FIG. 5 is an ink replenishment in the upright ink replenishing format using the ink replenishing device of FIG. It is a schematic sectional drawing which shows the state at the time of doing. In the present embodiment shown in FIGS. 4 and 5, the number of tubular ink communication members is only one compared to the embodiment shown in FIGS. 1 to 3, so that the replacement flow of ink and air is reduced. In order to facilitate, an air entry promoting hole 112 h is provided in the vicinity of the upper end of the tubular ink communication member 112.

  In addition, according to the present embodiment, it is possible to obtain substantially the same operational effects as those of the embodiment shown in FIGS.

10 Ink replenisher 11 Ink container body (ink refill body)
11a Tubular part 11b Substantially cylindrical part 11c Bottom part 11t Transition part 12, 112 Tubular ink communicating member 12e Extension side end part 12h Air entry promotion hole 13 Filling member 14 Covering part 14r Pen tip opening part 14s Side covering part 14u Upper covering portion 14b Lower covering portion 20 Ink pen 21 Pen tip 22 Shaft cylinder member 23 Ink holder 24 Rear end portion 40 Cap member 40b Bottom portion 40c Screwed portion 40s Skirt portion 44 Holding hole

Claims (7)

A nib that can hold the ink in an impregnated state;
A shaft member that holds the pen tip in a protruding state at the tip;
An ink holder provided in the shaft cylinder member and capable of distributing ink between the pen tip, and
An ink replenishing device for replenishing ink to an ink pen having
An ink refill main body having a nib opening capable of receiving the nib;
A cap member for closing the pen tip opening so as to be openable and closable;
With
The cap member has a holding hole into which the rear end side of the ink pen is inserted, and a bottom portion that is provided on the side facing the holding hole and can be supported by a flat surface.
When the cap member is placed on a substantially horizontal plane by the bottom, the ink pen whose rear end side is fitted into the holding hole is maintained in a substantially vertical posture ,
The holding hole is cylindrical,
The bottom is circular in plan view;
The ink replenishing device according to claim 1, wherein a diameter of the bottom portion is three times or more a diameter of the holding hole . The ink replenishment main body has a substantially axisymmetric appearance shape,
The cap member also has a substantially axisymmetric appearance,
The cap member is placed on a substantially horizontal plane by the bottom, the rear end side of the ink pen is inserted into the holding hole, and the pen tip of the ink pen is received in the pen tip opening of the ink refill main body. 2. The ink replenishing device according to claim 1, wherein the ink replenishing main body portion and the cap member have a concentric positional relationship with each other. The ink replenishing device according to claim 2, wherein the maximum outer diameter of the ink replenishing main body is 105% or less with respect to the maximum outer diameter of the cap member. The ink replenishing device according to any one of claims 1 to 3 , wherein a diameter of the bottom portion is larger than a height from the bottom portion to a bottom surface of the holding hole. The depth of the holding hole, the ink refilling device according to any of claims 1 to 4, wherein greater than the diameter of the holding hole. The ink replenishing device according to any one of claims 1 to 5 , wherein an area of the bottom portion in plan view is 9 times or more a cross-sectional area of the holding hole. The cap member has a weight of 3 g to 20 g,
The ink replenishing device according to any one of claims 1 to 6 , wherein the ink replenishing main body has a weight of 10g to 100g.

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