JP2559458Y2 - Applicator - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an applicator for applying a coating liquid such as a black liquid, a paint, a writing liquid such as an ink, and a cosmetic liquid such as an eyeliner or a lip color. More specifically, the present invention relates to an applicator that directly accommodates an application liquid in a liquid storage section and supplies the application liquid to the application body by pressing a knock portion. 2. Description of the Related Art Conventionally, as a coating tool of a type for supplying a coating liquid to a coating body by pressing a knock portion, Japanese Utility Model Publication No. 57-5
As disclosed in Japanese Patent No. 5114, an ink tank is provided with an elastic bellows part, a valve rod extends to the bottom of the ink tank, and a valve is opened by pressing the ink tank. It has been known. [0003] Problems to be solved by the present invention are that there is a possibility that handwriting may be blurred and writing may not be possible due to a decrease in transmission of the coating liquid in the coating liquid storage section. That is, in order to make the bellows part provided in a part of the ink tank expandable and contractable, it is necessary to form the bellows part with an elastic film and to reduce the thickness thereof. Is easily transmitted in a gaseous state. Due to the permeation of the liquid in the coating liquid, the solid content in the coating liquid increases, and the viscosity of the coating liquid increases, which lowers the dischargeability from the coating body and causes writing blurring. That is, it may be impossible. In particular, when the period of time from production to delivery to the consumer's hand is long, the amount of transmission loss of the coating solution becomes large, and when the consumer tries to use it for the first time, there is a case where it is already blurred or impossible to write. An object of the present invention is to provide an applicator that minimizes the loss of permeation of a coating solution and does not cause loss of permeation at least until the first use. SUMMARY OF THE INVENTION The present invention has been made to achieve the above object. An application body is attached to a tip end of a shaft cylinder having an application liquid container therein, and a valve body and a valve seat member are provided behind the application body. Is provided with a valve mechanism that forms a valve by press-contact, and the valve mechanism is opened by compressing an elastic film body that forms a part of the coating liquid storage unit, and the coating liquid is supplied to the coating body. An application tool, wherein a closed air layer is formed outside the elastic membrane when not in use. [0005] In the applicator according to the present invention, when not in use, a closed air layer is formed outside the elastic membrane, so that the liquid in the coating liquid permeates through the elastic membrane in a gaseous state. Also, the liquid is saturated in the closed air layer, and no more liquid permeates. The present invention will be described below in detail with reference to the accompanying drawings. In each embodiment, substantially the same members have the same numbers. FIG. 1 shows a first embodiment, and FIG. 2 shows an enlarged view of a main part thereof. Reference numeral 1 denotes a barrel. An application body 2 made of a fiber bundle, a polymer porous body, or the like is attached to the opening of the end of the barrel 1. The rear part of the application body 2 is inserted into a temporary application liquid storage member 3 which is disposed at the tip inside the barrel 1 and is made of a fiber convergent body (so-called batting), a porous body, or the like. An elastic / repellent member receiving member 4 is disposed behind the temporary coating liquid storage member 3.
And a valve element 5 disposed in the shaft cylinder 1 behind the resilient body receiving member 4
A resilient body 6 is stretched so as to urge the valve body 5 backward. Here, the elastic body 6 may have any shape as long as it can urge the valve element 5 backward, but as in the present embodiment, a coil spring whose diameter gradually decreases from front to rear. This is practically preferable because the flow of the coating liquid is easily guided in the circumferential direction. The valve body 5 urged rearward contacts a valve seat member 7 having a through hole fixed inside the shaft cylinder 1 to form a valve mechanism. An inner plug 8 having a center hole 8a is disposed behind the valve seat member 7, and a coating liquid storage portion 9 is formed between the valve seat member 7 and the inner plug 8. One end of the coating liquid container 9 is located near the rear end of the valve body 5,
A bar-shaped member 10 is formed so as to extend to form a gap with the central hole 8a. The other end of the rod-shaped member 10 is fixed to the rear end of the elastic film body 11 having a bellows-like bent portion attached to the outer periphery of the central hole 8a of the inner plug 8. Here, examples of the elastic film body 11 include blow-molded products such as polyethylene, polypropylene, nylon, and ethylene vinyl acetate. A knock member 12 is attached to an outer wall at a rear end of the elastic film body 11. The knock member 12 is provided with a threaded portion 12a in front of the outer wall thereof, and can be screwed to the threaded portion 13a of the tail plug 13 fixed to the rear end opening of the barrel 1 and released. If the tail plug 13
It is slidable on the inner wall. Further, by screwing the knock member 12 and the tail plug 13, the annular rib 12 b provided on the front end flange portion 12 c of the knock member 12 and the front end surface 13 b of the tail plug 13 are liquid-tightly pressed, and the elastic membrane 11 A closed air layer 14 is formed outside. The method of use is as follows. When the knock member 12 is rotated, the screw between the knock member 12 and the tail plug 13 is released, and the knock member 12 is pressed forward, the elastic membrane 1
1 is compressed, the internal pressure of the coating liquid storage unit 14 is increased, and the rod-shaped member 10 is displaced forward, displacing the valve body 5 against the urging force of the elastic body 6, and the valve mechanism is opened. As a result, the coating liquid flows out of the coating liquid storage unit 9 into the space between the valve seat member 7 and the resilient body receiving member 4 via the valve mechanism, and is further provided on the end face of the resilient body receiving member 4. From the cut-out portion 4a through the rib 1a provided on the inner wall of the barrel 1
And penetrates into it. In addition, when the application liquid is supplied excessively so that the application body 2 cannot be held, the application liquid permeates the temporary application liquid storage member 3, so that the application liquid does not drop off from the application body 2. FIG. 3 shows a second embodiment. In this example, the front portion of the knock member 12 has a tapered shape whose diameter decreases toward the rear, and the outer wall of the knock member 12 and the tail plug 1 are formed.
Ribs 13a, 13a are formed on the inner wall of the knock member 12 instead of the threaded portions, and when the rib 12a of the knock member 12 is fitted over the rear of the rib 13a of the tail plug 13, the rib of the tapered portion of the knock body 12 is formed. This embodiment is the same as the first embodiment except that the seal 13 is omitted in the drawing because it is minute and the front part 13b of the tail plug 13 is liquid-tightly pressed to form a sealed air layer 14. The second embodiment differs from the first embodiment in that the knock body 12 does not need to be rotated during use. FIG. 4 shows a third embodiment. This example is the same as Example 1 except that a packing 15 such as a rubber O-ring is fixed to the front flange portion 12c of the knock member 12, and no screw portion is provided between the knock body 12 and the tail plug 13. In addition, the closed air layer 14 is formed by liquid-tight pressure bonding between the packing 15 and the front end face 13b of the tail plug 13 by the urging force of the elastic film body 11 rearward. The third embodiment is different from the above-described embodiment in that the closed air layer 14 is formed only by the urging force of the elastic film body 11 rearward. In the first to third embodiments, the annular rib is screw-fastened to the front end face of the tail plug in a liquid-tight manner (Example 1).
The liquid-tight crimping between the rib of the tapered portion and the front part of the tail plug by the over-fitting (Example 2), the packing by the rearward urging force, and the liquid-tight crimping between the front end face of the tail plug (Example 3) When not in use, a closed air layer is formed outside the elastic membrane. In the knock type applicator according to the present invention, since a closed air layer is formed outside the elastic membrane when not in use, the amount of the coating liquid permeating outside the product is extremely small. This is also an excellent one that does not cause problems such as writing blur and writing inability.

[Brief description of the drawings] FIG. 1 is a longitudinal sectional view of a first embodiment. FIG. 2 is a longitudinal sectional view of a main part of the first embodiment. FIG. 3 is a longitudinal sectional view of a main part of a second embodiment. FIG. 4 is a longitudinal sectional view of a main part of a third embodiment. [Explanation of symbols] 1 shaft cylinder 2 Application body 5 valve body 7 Valve seat member 9 Coating liquid storage 11 Elastic membrane 14 Sealed air layer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location B43K 8/02 B43K 8/02 Z

Claims (1)

(57) [Claims for Registering Utility Model] A valve that has an application body attached to the tip of a shaft cylinder having an application liquid storage section inside, and a valve body and a valve seat member pressed against the application body behind to form a valve. the mechanism is provided, wherein the valve mechanism by compressing the elastic membrane constituting a part of the coating liquid accommodating portion is opened, a applicator coating liquid is supplied to the coating material, the non-use
A sealed air layer is formed outside the elastic membrane during use.
And an applicator characterized by the following.