JPH0313999B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is applicable to inks containing large or heavy particles as a main component, high viscosity inks or quick-drying inks, lubricating oils, adhesive liquids, cosmetic liquids, etc. The present invention relates to an ink or other liquid supply device that is installed in a writing instrument or applicator that uses a liquid such as ink (hereinafter referred to as ink or other liquid).

(Prior Art) Conventionally, in this type of device, for example, the rear end of a core and the front end of a cylinder are fitted through an air press-fitting part, and there is a mechanism inside the cylinder that slides back and forth in conjunction with a knob member. No. 104,987/1987 discloses a pressurized ballpoint pen with a locking mechanism, which is characterized by a movable rod and a piston that is fixed to the rod and moves in a sealed cylinder together with the rod. It has already become publicly known.

(Problem to be solved by the invention) However, with this structure, when the piston inside the cylinder is pressed forward to push the ink inside the cylinder, the ventilation between the cylinder and the outside air is blocked, and When the piston returns, a special structure is required to open the air between the cylinder and the outside air, and all the pressure to send the ink inside the core to the writing section is due to the pressure of the fingertip on the knob member. Therefore, there were problems such as variations in the amount of ink fed depending on the force applied to the fingertips.

(Means for Solving the Problems) The present invention has a configuration in which compressed gas and ink are separated and enclosed by a partition cup in a space with an open tail end formed in a shaft cylinder, and ink is ejected by pushing a nozzle. A self-returning closing type cylinder is removably loaded with the shoulder provided on the nozzle locked onto the upper surface of the incisal edge of the nozzle insertion hole provided at the bottom of the space, and a return spring attached to the tail end of the cylinder is loaded. A writing instrument and an applicator, characterized in that a button is attached, a writing part or an application part is formed at the tip of the barrel, and the writing part or application part and the nozzle are connected with a required pipe part. The present invention attempts to solve these problems by providing a liquid supply device such as ink.

(Example) A self-returning closure configured to eject ink 4 from a nozzle 6 in which compressed gas 3 and ink 4 are separated and sealed with a partition cup 5 into a space 2 formed in a shaft cylinder 1 with an open tail end. The mold cylinder 7 is removably loaded with the shoulder 8 provided on the nozzle 6 locked onto the upper surface of the incisal edge of the nozzle insertion hole 9 provided at the bottom of the space 2, and the tail end of the space 2 is opened. A tail end cap 10 is removably screwed onto the mouth, a knock button 12 with a return spring 11 is attached to the tail end cap 10, and when the knock button 12 is pushed in with a finger, the bottle portion 13 of the cylinder 7 is pressed down. Further, a downward short tube section 15 is provided on the lower surface of the incisal edge of the nozzle insertion hole 9 to allow the nozzle 6 to be inserted into and removed from the inner periphery of the downward short tube section 15. This downward short pipe 15 is fitted with a seal 16 that
A spray pole 17 is connected to the tip of the shaft cylinder 1 through a flexible tube 18 whose middle part collapses under atmospheric pressure and negative pressure and functions as a check valve, and expands under positive pressure and functions as a guide pipe. A base member 20 is removably screwed onto the tip, and the base member 20 connects the shaft cylinder 1.
At the same time as fixing the brush tip 21 to
The above-mentioned spray pole 17 is embedded in the center of the base end of the paper 1, and an ink absorbing material 22 is installed on the outer periphery of the base end.
When the button 12 is pressed down, the cylinder 7 descends and the nozzle 6 is pushed in. This pushing opens the nozzle 6 to eject ink, and the ejection pressure swells the flexible tube. Then, the ink is guided to the spray pole 17, and the brush tip 21 and the ink storage material 22 are properly moistened. When the button 12 is no longer pressed, the cylinder 7 returns to close the nozzle 6. The flexible tube 18 closes and functions as a check valve, stopping the supply of ink.

(Operations and Effects) Since the present invention is configured as described above, it is possible to reliably supply a liquid such as a specific ink to the writing section or application section by pressing the button. Particularly, in the present invention, a self-returning closing type cylinder is used, which has a configuration in which compressed gas and ink are separated and sealed in a space with an open tail end formed in a barrel, and the ink is ejected by pushing a nozzle. Therefore, there is no need for a special mechanism to shut off the inside of the cylinder from the outside air when the piston is press-fitted forward, and to release this shutoff when returning the piston to the rear, as in the above-mentioned known systems using a cylinder and piston. In addition, the force for transferring liquid such as ink to the writing section or application section is due to the pressure of the compressed gas in the cylinder, so unlike the above-mentioned known method, the supply of the liquid such as ink to the writing section or application section is done by pressing the finger against the button. The pressing can be performed uniformly at all times regardless of the strength of the pressing force, and the present invention has the effect of sufficiently solving the above-mentioned problems.

[Brief explanation of the drawing]

The figures show an embodiment of the ink or other liquid supply device in the writing instrument and applicator of the present invention, in which FIG. 1 is a cross-sectional view showing the state during non-knock operation, and FIG.
The figure is a sectional view showing the state when the knob is operated. 1... Shaft cylinder, 2... Space, 3... Compressed gas, 4
... Ink, 5 ... Partition cup, 6 ... Nozzle,
7...Cylinder, 8...Shoulder, 9...Nozzle insertion hole, 10...Tail end cap, 11...Return spring, 12...Knob button, 13...Bottle part, 15
. . . Downward short tube part, 16 . . . Seal, 17 . . . Spray ball, 18 .

Claims (1)

[Claims] 1. A shoulder section in which a nozzle is equipped with a self-returning closing type cylinder configured to eject ink by pushing the nozzle, in which compressed gas and ink are sealed and separated by a partition cup in a space with an open tail end formed in a shaft cylinder. is removably loaded while being locked to the upper surface of the incisal edge of the nozzle insertion hole provided at the bottom of the space, and a notch button with a return spring is attached to the tail end of the cylinder, and a writing section is attached to the tip of the cylinder. Alternatively, an apparatus for supplying liquid such as ink in writing instruments and applicators, characterized in that an application section is formed and the writing section or application section and the nozzle are connected through a necessary pipe section.