JPS6245916Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is an ink, etc. that is configured to lead out a coating liquid such as ink sealed in an ink tank inside a cylinder to a coating piece provided at the lower end of the cylinder through a valve. This invention relates to improvements in coating equipment.

2. Description of the Related Art Conventionally, as an application device for ink, dye, etc., there is, for example, a liquid marker for a writing instrument.

This liquid marker is elastically biased in a direction that always closes the communication path between a sealed ink tank formed inside a cylinder to be held and a pen tip provided at the bottom end of the cylinder. A valve was interposed therein, and the communication passage was opened by pressing the pen tip that was connected to the valve.

However, since air is also sealed in the sealed ink tank along with the sealed ink, the internal pressure within the ink tank is affected by the expansion of the air. For example, when the air inside the ink tank expands due to the body heat transmitted from the hand holding the liquid marker, and the internal pressure becomes high, the exchange of ink and air inside the ink tank can occur smoothly. If this is not done, more ink than necessary will be drawn out from the ink tank, resulting in the so-called "bottle drop phenomenon". That is,
This method has the disadvantage that the amount of ink drawn out is always affected by the difference between the internal and external pressures of the ink tank. Therefore, it cannot be applied to a purpose of applying a uniform amount to a paper surface, etc., and it lacks versatility as it can be applied only to a limited purpose.

The present invention was developed in view of the above-mentioned problems, and its purpose is to provide a coating device that draws out ink, etc. sealed in an ink tank after bringing the internal pressure inside the ink tank into equilibrium with the external pressure. Our goal is to provide the following.

The structure of the present invention is that an ink reservoir is provided between the ink tank of the cylindrical body and the application piece, and a dowel rod is slidably provided inside the cylinder, and when the ink stick is pushed into the cylinder by a predetermined amount, the dowel stick acts. The ink tank and the ink reservoir are communicated with each other.

Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 to 5 show the case where the applicator according to the present invention is applied to a liquid marker.
In the figure, 1 is a cylindrical body, and inside the cylindrical body 1 is an ink tank 2 in which ink, which is a coating liquid, is sealed.
is formed.

The lower end of the cylinder 1 is closed with a pen nib support 4 having an ink supply hole 3 including a radial slit (see FIG. 3). A pen nib 6, which is an application piece, is passed through an ink control member 5 having continuous air cells.
is retained.

The ink control member 5 prevents excessive ink from flowing into the pen tip 6 by its continuous air cells.

A partition wall 8 is provided above the ink supply hole 3 to form an ink reservoir chamber 7 separated from the ink tank 2, and a communication hole 9 is bored in the partition wall 8. The communication hole 9 and the ink reservoir chamber 7 serve as an ink supply path from the ink tank 2 to the pen tip 6. Further, the ink reservoir chamber 7 sequentially supplies ink to the pen tip 6 within its capacity range.

The interlocking tube 10, one end of which is inserted into the communication hole 9, has its lower end closed, and an enlarged portion 10a that abuts the lower end periphery of the communication hole 9 of the partition wall and closes the communication hole 9 is formed on its outer periphery. ing. This enlarged part 10
A spring 11 is provided between the pen tip support 4 and the
is interposed therein, and the enlarged portion 10a is always resiliently biased in the direction of closing the communication hole 9 by the spring 11, so that it functions as a valve mechanism. The enlarged portion 10a of the interlocking tube 10 and the communication hole 9 may have any shape as long as they function as a valve.

A dowel rod insertion hole 12 and a sealing member 13 are provided near the upper end of the cylindrical body 1. Reference numeral 14 denotes a knock rod, which is provided in the knock rod insertion hole 12 and the sealing member 13 so as to be movable forward and backward, and has an open upper end and a ventilation hole 15 on the side.
It is constructed as a hollow tube with a The opening at the upper end of the knob rod 14 is covered with a knob 18 so as not to close it.

The knock rod 14 also has an enlarged diameter portion 16 at its lower end.
The spring 17 interposed between the knob 18 and the upper end periphery of the insertion hole 12 of the cylindrical body 1 is elastically biased upward until the shoulder 16a abuts against the sealing member 13. When the shoulder portion 16a of the enlarged diameter portion 16 and the sealing member 13 are in contact with each other, the air hole 15 is located outside the cylinder 1, so that the ink tank 2 is maintained in a sealed state. Knot stick 14
The vent hole 15 provided in the ink tank 2 is normally located outside the sealed ink tank 2, and when the knob 18 is pressed downward, the vent hole 15 advances inward from the knob rod insertion hole 12. unless moved
The sealed ink tank 2 is designed not to be exposed to the atmosphere through the ventilation hole 15.

The cylindrical body 1 has a push-in end 16b at the lower end of the enlarged diameter part of the knob rod 14 extending vertically inside thereof, and the narrow diameter part 16c at the lowermost end is connected to the hole of the interlocking tube 10 described above. It is designed to be inserted into and guided.

By pressing the knob 18 and moving the knock bar 14 forward, the vent hole 15 moves into the ink tank, opening a ventilation passage in the ink tank, and then by further pushing the knock bar 14, the vent hole 15 moves into the ink tank. stick 1
The push-in end 16b of 4 is adapted to fit against the upper end of the resiliently biased interlocking tube 10, and to push down the interlocking tube 10 to establish communication between the ink tank 2 and the ink reservoir chamber.

Modifications of the above-described knock rod 14 are shown in FIGS. 6 and 7.
As shown in FIG.

The knock rod 14' shown in FIG. 6 is composed of a hollow tube 19, a flanged plug 20 fixed to the lower end of the hollow tube 19, and a ring 21 fixed to the intermediate outer periphery of the hollow tube 19. At least two ventilation holes 15, 15 are bored in the upper part of the hollow tube 19 at different levels. And the ventilation hole 1 located at the bottom
When the ink tank 5 enters the ink tank 2, the ink tank 2 is exposed to the atmosphere. This form has the advantage of contributing to weight reduction.

The knock rod 14'' shown in FIGS. 7 and 8 is provided with continuous grooves 22 in the axial direction (vertical direction) of the knock rod 14'' up to its upper end. When the lower end of the groove 22 enters the ink tank 2, the ink tank 2 is communicated with the atmosphere.The knock rod 14'' of this form is similar to the knock rod 1 shown in FIG.
Since the ventilation hole 15 in the form of 4' and the internal passage of the knock rod 14' are integrated by the groove 22, it is very advantageous in terms of the number of manufacturing steps.

When using the liquid marker configured as described above, the knob bar 14 is pressed downward. By the downward movement of the knock rod 14, that is, the forward movement into the ink tank 2, the ventilation hole 15 enters into the ink tank 2 as shown in FIG. , ventilation takes place, and the internal and external pressures become balanced. Thereafter, when the knock rod 14 moves further downward, the interlocking tube 10 is pushed down by the pushing end 16b as shown in FIG. 6, and the communication hole 9 between the ink tank 2 and the ink reservoir chamber 7 is opened. The ink sealed in the ink is introduced into the ink reservoir chamber 7.

Then, if the pressing force is removed from the knock rod 14,
The knock rod 14 is pushed upward by the interposed springs 11 and 17, and the communication hole 9 and the ventilation hole 15 are closed.

The ink pooled in this ink reservoir chamber sequentially flows into the pen tip 6 according to the amount applied by the pen tip 6. The ink of this liquid marker is generally made by dispersing fine pigment particles in a mixture of a solvent and a vehicle, but instead of this, a pigment dispersed in a dye liquid or a resin emulsion is encapsulated, For example, by placing the pen tip in contact with the running thread as it is being wound by a winder,
It can also be applied to the technical field of dyeing by applying a dye liquid or the like to yarn and subjecting it to post-processing used in textile printing technology.

According to the coating device according to the present invention, since the coating liquid is drawn out after the internal pressure inside the ink tank is brought into equilibrium with the external pressure, it is possible to prevent "dropping", and the pen tip is used to draw out the coating liquid. Since there is no need to press the pen tip, there are no restrictions on the selection of the pen tip, and there is no need to supply excessive coating liquid to the pen tip, so it is highly versatile.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an application of the coating device according to the present invention to a liquid marker. FIG. 2 is a sectional view taken along line A-A in FIG. 1. Figure 3 is Figure 1B
- A cross-sectional view taken along line B. FIG. 4 is a sectional view taken along line CC in FIG. 1. FIG. 5 is a cross-sectional view of the liquid marker showing a state in which the dowel rod is pushed in a certain amount. FIG. 6 is a diagram similar to FIG. 5 in another embodiment. FIG. 7 is a side view showing another embodiment of the knock rod. FIG. 8 is a sectional view taken along line A-A in FIG. 7. 1... Cylinder, 2... Ink tank, 6... Pen tip, 7... Ink reservoir, 9... Communication hole, 10...
Interlocking tube, 11...spring, 14...knot rod, 15...ventilation hole, 16...enlarged part, 17...
spring.

Claims (1)

[Claims for Utility Model Registration] A cylindrical body having an ink tank inside, an applicator piece attached to the tip of the cylindrical body, an ink reservoir located at the tip of the cylindrical body and communicating with the applicator piece; a communication hole provided in the ink reservoir chamber and communicating the ink reservoir chamber and the ink tank; an interlocking tube located within the ink reservoir chamber and provided to close the communication hole; and the interlocking tube. In connection with this, a knock rod having one end protruding outside the cylinder body and slidably provided inside the cylinder body, a biasing means for urging the knock rod toward the protruding side, and a nail rod provided at the protruding end of the knock rod. a ventilation hole provided, when the knock rod is pushed into the cylinder body by a predetermined amount, the ink tank communicates with the atmosphere through the ventilation hole, and when the knock rod is further pushed in, the A coating device characterized in that a knock rod is provided so as to act on the interlocking pipe to open the communication hole and guide ink in the ink tank to the ink reservoir chamber.