JPS6040447Y2 - Liquid pressure applicator for ink, etc. - Google Patents

Description

[Detailed explanation of the invention] This invention stores liquids such as ink, India ink, paste, type correction liquid, cosmetic liquid, etc. in a liquid chamber, and presses the liquid sequentially as the amount of taste liquid decreases to reduce the size of the liquid chamber. This relates to a liquid pressure applicator for ink, etc., and its purpose is to simplify the overall structure by increasing the liquid chamber in proportion to the length of the entire applicator.

Conventional liquid press applicators for ink, etc., as shown in Registered Utility Model No. 365691, have a screw shaft in the shaft cylinder, a screw is screwed onto the screw shaft, and the upper end of the screw shaft is rotated. A device in which the shaft is slid up and down in a groove along a shaft cylinder,
Alternatively, as shown in Japanese Patent Publication No. 25-5129, a lid cylinder is screwed onto the outer periphery of the rear end of the ink reservoir, a piston is fitted into the ink cavity, a spring is installed between the piston and the rear end of the lid cylinder, and the lid cylinder is closed. The piston is pressed forward by the elasticity of a spring while rotating, or a cylindrical compressor is placed over the rear end of a bellows-type ink bag as shown in Japanese Utility Model Publication No. 26-9206. It was considered that the compressor could slide back and forth, but the first known example had a screw shaft inside the barrel, so the ink storage capacity was small, and the second known example was longer due to the M cylinder. Therefore, the ink storage capacity is small compared to the overall length, and the structure is extremely complicated and expensive.The third known example uses a bellows-shaped ink bag, which not only makes the structure complicated, but also prevents ink from falling when a fountain pen is dropped. There was a drawback that deformation of the bag caused ink leakage.

The present invention eliminates the drawbacks of the conventional knocking body by screwing a knocking body having a threaded portion at least at its tip into the shaft cylinder.

Next, an embodiment of the present invention shown in the accompanying drawings will be described in detail.

1 is a shaft cylinder with a spiral groove 1a formed on its inner surface and a protruding tip portion 1b.
A holder 3 for a brush tip 2 is fitted and fixed inside.

A large diameter hole 1c is featured on the inner surface of the rear end of the shaft cylinder.

4 screws the tip of a knock body 4 having a bellows 4a and a bottom 4b into the spiral groove 1a, the other part is compressed and stored in the large diameter hole 1c, and its upper end is attached to the rear of the shaft cylinder 1. The rear end cylindrical portion 4c of the knock body 4 is engaged with a ring 5 protruding from the inner surface of the end.
protrudes from the rear end of the shaft cylinder 1.

Reference numeral 6 denotes a liquid chamber containing ink, ink, paste, type correction liquid, cosmetic liquid, and the like.

Next, the operation will be explained.

When the knock body 4 is rotated by a predetermined amount in the right direction of the arrow and advanced in the axial direction, a predetermined pressure is applied to the liquid in the liquid chamber 6, and a predetermined amount of liquid flows into the brush tip 2, causing the ink to run out and the bottle to drop. It can be used for coating without causing any smearing.

Further, the liquid chamber is reduced in size as the compressed bellows portion of the knock body 4 is screwed into the spiral groove 1a on the inner surface of the shaft cylinder.

The bellows portion of the knock body may be formed only at the tip of the knock body.

This is because the tip of the knock body, which is screwed into the spiral groove on the inner surface of the shaft cylinder, can reduce the volume of the liquid chamber by rotating the knock body.

In other words, it is sufficient for the knock body to have at least a threaded part at its tip, and even if the knock body itself does not have a bellows shape, a spring can be fitted inside the flexible bag-like knock body. You can.

However, although any of the above structures can be said to be fairly simple, it is most preferable to form a bellows on most of the knock body except for the rear end.

According to the present invention, the knock body having a threaded portion at least at the tip is screwed into the shaft cylinder and moved in the axial direction, so that the intermediate part of the knock body which is not screwed is compressed and the shaft cylinder is moved. Since it can be stored in the rear part of the applicator, the liquid chamber can be made larger compared to the overall length of the applicator, and since the liquid chamber is prevented from deforming like a flexible bag, it is easy to use when dropped, etc. Liquid leakage has also been improved, and since the spiral groove is simply formed on the inner surface of the shaft cylinder and the knock body is screwed together, the structure is extremely simple and can be manufactured at low cost, making it an applicator that uses particularly high viscosity liquids. It is most suitable as

Note that the coating body may have any structure.

[Brief explanation of the drawing]

The figure is a front sectional view of one embodiment of the present invention. 1...Shaft cylinder, 1a...Spiral groove, 1c.
...Large diameter hole, 2...Brush tip, 4...
・Knock body, 4a... Bellows, 4b...
Bottom, 6...Liquid chamber.

Claims (1)

[Scope of utility model registration request] A spiral groove is formed on the inner surface of the shaft cylinder, an applicator is fixed to the tip, the tip of a knock body having at least a threaded portion at the end is screwed into the spiral groove, and the intermediate part of the knock body is compressed. A liquid press type applicator for ink, etc., which is housed in the rear part of the barrel, with the rear end of the knock body protruding from the rear end of the barrel.