JP2003071371A - Applicator for liquid material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an applicator for liquid material which shortens a time until attaining the available state when the use of the applicator is started. SOLUTION: In this applicator for liquid material, coating tip parts 2 are provided successively on a handle part 1 which forms a storage chamber 31 for liquid material and the liquid material in the storage chamber 31 is supplied to a coating core member 12 of the coating tip parts 2. Therein, the coating core member 12 is one of a multilayered structure laminated with a plurality of core materials 13, 14 which are formed by assembling fibers respectively and at least one core material 13 is made in such a manner that the aperture between the fibers is larger than that in the other core material 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid material application tool used in, for example, application work for advertisements, billboards and the like.

[0002]

2. Description of the Related Art When a brush or a brush is used to apply ink or paint over a large area such as an advertisement or a signboard, it is necessary to frequently dip the brush or brush in the application liquid and supply the ink or paint while supplying it. was there. However, it was not possible to apply efficiently by repeatedly dipping a brush or a brush in the application liquid and applying the ink or the paint while replenishing it frequently.
Moreover, the applied state was likely to be uneven.

[0003]

Therefore, the applicant has considered an applicator in which a storage chamber for storing the coating material is formed in the handle portion and the coating material is supplied from the storage chamber to the coating portion. Also,
When not using the applicator, cover the applicator with a cap to prevent the applicator from drying.

When using such an applicator, the cap is removed from the applicator and the applicator is applied to the part to be applied and the application is started. However, at the beginning of use, it is expected that the coating portion will be dried and the amount of the coating will be insufficient, or that it will take some time until the coating portion is sufficiently replenished with the coating material.

When the coating device is stored without being used, the coating solution is replenished from the storage chamber to the coating part in order to prevent the coating material from leaking into the cap covered with the coating part. It is conceivable that a valve is provided in the passage and the passage is blocked by this valve. However, if this is done, the coating portion will be further dried, and it will take a considerable time before it can be used.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a liquid material which is designed to shorten the time until it is ready for use when the applicator is used. To provide an applicator.

[0007]

The invention according to claim 1 is
A coating tool for a liquid material, wherein a coating portion is continuously provided to a handle portion in which a liquid material storage chamber is formed, and the liquid material in the storage chamber is supplied to a coating core member of the coating portion. The member includes a core member having a multilayer structure in which a plurality of core members each formed by collecting fibers are stacked, and at least one core member has a larger gap between fibers than other core members. It is characterized by being

According to a second aspect of the present invention, the application section is configured such that the application core member is movably held by being pushed into the mounting frame, and that the liquid material is supplied from the storage chamber to the application core member midway. The liquid material according to claim 1, wherein a normally closed valve is provided, and the normally closed valve is opened by pushing in the coating core member to supply the liquid material to the coating core member through the passage. It is a coating device.

According to a third aspect of the present invention, the coating core member has a multi-layered structure in which a plurality of T-shaped plate-shaped core members are stacked, and the coating core member is contained in the housing portion of the mounting frame. The T-shaped intermediate leg portion of the coating core member is inserted into the passage for supplying the liquid substance in the storage chamber to the coating core member and is connected to the normally closed valve while being fitted. This is a liquid application tool.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A liquid applicator according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a front view of an applicator having a coating tip covered with a cap, FIG. 2 is a front view of the applicator with a cap removed, FIG. 3 is a longitudinal sectional view of the applicator, and FIG. 4 is a cap removed. 6 is a plan view of the coating tip portion, FIG. 5 is a longitudinal sectional view of the valve device, and FIG.
Is a coating core member at the coating tip.

The applicator according to the present embodiment has a handle (shaft) 1 for gripping, which also serves as a storage case for liquids such as ink, and an applicator tip 2, and the applicator tip 2 usually has a cap. 3 is installed.

The handle portion 1 is formed by a cylindrical member 5 closing the tail end 4, and a small diameter male screw portion 6 is formed on the outer peripheral portion of the tip of the handle portion 1.

The coating tip 2 comprises a mounting frame 11 holding a coating core member 12, and the coating core member 12 is a plate of a predetermined thickness cut out in a T shape as shown in FIGS. 4 and 6. A so-called hammerhead type coating core is formed from the liquid-absorbent member. Further, as shown in FIG. 4, the coating core member 12 has a multi-layered structure in which an inner core material 13 and an outer core material 14 are superposed, and specifically, one inner core material 13 is formed from two sides. The outer core material 14 is sandwiched and one inner core material 13 is covered with the outer core material 14 on both sides to form an integral three-layer sandwich structure. Each of the inner core material 13 and the outer core material 14 is formed by solidifying resin-made fibers into a plate shape. The inner core material 13 is, for example, polyester or acrylic fiber, and the outer core material 14 is, for example, polyester. Made of fiber.

Further, by making the fibers of the inner core material 13 serving as the intermediate layer thicker and the fibers of the outer core material 14 thinner, the gaps (voids) between the fibers of the inner core material 13 serving as the intermediate layer are formed outside. It is made larger than that of the core material 14. Therefore, the inner core material 13 serving as the intermediate layer absorbs liquid paint such as ink and exudates earlier than the outer core material 14 layer.

As shown in FIG. 5, the mounting frame 11 is formed with a box-shaped storage portion 21 into which the plate-shaped coating core member 12 formed in a T shape is fitted, and the mounting frame 11 is further formed. The connecting tubular portion 22 having a rectangular cross-sectional shape extending from the center of the lower surface thereof
A mounting tube portion 23 connected to the tip of the handle portion 1 via is connected in series. A female screw portion 24 that is screwed into the male screw portion 6 of the handle 1 is formed on the inner peripheral surface of the mounting cylinder portion 23.
Here, the width of the connecting tubular portion 22 is smaller than the diameter of the mounting tubular portion 23, and the connecting tubular portion 22 is formed as a neck portion.

The coating portion 12a of the T-shaped plate-shaped coating core member 12 is disposed by being fitted into the box-shaped storage portion 21 of the mounting frame 11, and the middle of the T-shaped coating core member 12 is provided. The leg portion 12b is arranged so as to enter the connecting cylinder portion 22. The coating core member 12 is attached so as to be slidable in the longitudinal axis direction of the handle 1. Further, rib-shaped projections formed along the longitudinal axis direction of the handle portion 1 are formed on the inner wall surfaces of the storage portion 21 and the connecting cylinder portion 22 corresponding to the outer surfaces of the T-shaped plate-shaped coating core member 12. 25 are formed at appropriate intervals. By forming the rib-shaped projections 25, the outer surface of the coating core member 12 does not entirely adhere to the inner wall surfaces of the storage portion 21 and the connecting tubular portion 22, and at least between the projections 25 the handle portion 1 is provided. A gap 26 communicating with the paint supply port is formed. Further, a groove may be formed on the side surface of the coating core member 12 or a hole may be formed in the wall portion of the coating core member 12, and the action of guiding the liquid coating material to the coating tip side may be promoted by utilizing this. .

As shown in FIG. 3, a storage chamber 31 for storing a liquid paint such as ink is formed inside the handle 1. A cartridge may be placed inside the handle 1 to form the liquid storage chamber 31.

A passage for supplying a liquid substance from the storage chamber 31 to the coating core member 12 is formed in the opening end of the handle portion 1. The passage is communicated with the passage portion, and the connection cylindrical portion 22 is also provided with the storage chamber 31. A passage 32 for supplying a liquid material to the coating core member 12 is formed. A normally closed valve device 33, which will be described later, is provided in the passage in the open end of the handle 1. By opening and closing the valve device 33, the amount of the liquid material supplied from the paint supply port of the storage chamber 31 of the handle portion 1 to the coating tip portion 2 is controlled.

The valve device 33 is constructed as shown in FIG. That is, a tubular resin member serves as the holding frame 35, and the valve seat member 36 is fitted into the opening end of the holding frame 35. A valve hole 38 facing the valve element 37 is formed in the center of the valve seat member 36. The surface of the valve element 37 facing the valve hole 38 is formed as a tapered slope 39. Then, the slope 39 of the valve body 37 hits the edge of the valve hole 38 to close the supply path, and the slope 3 of the valve body 37 is closed.
When 9 is separated from the edge of the valve hole 38, the supply passage is opened.

A long support rod 41 extending toward the storage chamber 31 is connected to one end of the valve element 37. Also, the valve body 3
At the other end of 7, a cylindrical portion 42 that projects toward the coating tip 2 is connected. The tubular portion 42 is provided so as to be loosely fitted in the valve hole 38 of the valve seat member 36 and to sufficiently project from the outer surface of the valve seat member 36 into the passage 32. A plurality of passages 32, which are partially notched, are formed at the protruding tip edge portion of the tubular portion 42. The passage 32 is for allowing the paint to wrap around the inside of the tubular portion 42 even when the tubular portion 42 of the valve device 33 hits the intermediate leg portion 12b of the coating core member 12.

The support rod 41 is a tip wall 43 of the holding frame 35.
It is slidably fitted in a through hole 44 formed in the center of the. In the holding frame 35, a coil spring 45 is loosely wound around the support rod 41 as an elastic biasing means. One end of the coil spring 45 is attached to the back surface of the valve body 37, and the other end of the coil spring 45 is attached to the tip wall 43 of the holding frame 35. Since the valve body 37 is constantly biased in the closing direction by receiving the elastic restoring force of the coil spring 45, the valve device 33 is normally kept closed by the valve body 37.

A flange 46 is formed at the opening end of the holding frame 35 so as to project outward. Further, a flange 47 is formed on the peripheral edge of the valve seat member 36. Then, the collar 4 of the holding frame 35
6 and the flange 47 of the valve seat member 36 are overlapped with each other, and in this state, the valve device 33 tightly fits the holding frame 35 into the mounting cylinder portion 23 of the coating tip 2 and tightly and liquid-tightly fixes it. At the same time, the collar 46 and the collar 47, which are overlapped with each other, are clamped by the inner peripheral wall of the mounting tube portion 23 and the open end of the handle portion 1, and the holding frame 35 of the valve device 33 is fixed to the handle portion 1.

The tip side portion of the holding frame 35 is formed in a tapered shape so as to form a large gap with the inner wall surface of the storage chamber 31. A plurality of window holes 48 are formed in the tip side portion of the holding frame 35, and the storage chamber 31 and the inside of the holding frame 35 are communicated with each other through these window holes 48.

On the other hand, the cap 3 is covered and held so as to cover the coating core member 12 of the coating tip portion 2. That is, as shown in FIG. 3, a collar 52 formed on the peripheral edge of the mounting cylinder portion 23 in a groove 51 formed on the peripheral edge of the cap 3.
And is sealed with a seal member 53. Further, as shown in FIG. 1, the cap 3 is provided with a locking piece 56, and the locking hole 57 of the locking piece 56 is locked to the projection 55 formed on the side surface of the mounting frame 11 so that the cap 3 is secured. It is designed to be held by the mounting frame 11.

Next, the operation of the applicator of this embodiment will be described. During storage without using the applicator, the applicator tip 2 is covered with the cap 3 and the valve device 33 is closed. Therefore, since the coating material is not supplied from the storage chamber 31 to the coating tip portion 2, the coating material does not overflow into the cap 3 through the coating core member 12.

When using an applicator, the cap 3 is removed from the applicator tip 2 and the applicator core member 12 of the applicator tip 2 is repeatedly pushed. When the coating core member 12 is pushed in, the intermediate leg portion 12b of the coating core member 12 pushes the valve element 37 against the biasing force of the coil spring 45 via the tubular portion 42 of the valve device 33. Then, the valve body 37 separates from the valve seat member 36, the valve hole 38 is opened, and the valve device 33 is opened, so that the coating material is supplied from the storage chamber 31 to the coating tip portion 2. By repeating the operation of pressing the coating core member 12, a large amount of paint can be supplied to the coating core member 12. When the pressing operation is repeated, the coating core member 12, the valve element 37, etc. exert a pumping action. Further, both the inner core material 13 and the outer core material 14 of the coating core member 12 are formed so as to exhibit liquid absorbency and permeability due to a capillary phenomenon or the like in the fiber gap, so that the paint can be spread over the whole. It protrudes. Therefore, even if the coating tip 2 is turned upward, the coating material can be sufficiently supplied to the coating core member 12. Then, the pushing operation is repeated until it is ready for use. However, at this time, if the coating tip portion 2 is directed downward, the coating material can be efficiently supplied to the coating core member 12.

In this way, the liquid coating material is soaked from the intermediate leg portion 12b of the coating core member 12 to the entire coating portion 12a that it can be used.

In this embodiment, the coated core member 12 absorbs the liquid coating material of the inner core material 13 serving as an intermediate layer and oozes out faster than the outer core material 14 layer. For this reason, the exudation of the liquid coating material to the tip portion of the coating core member 12 through the inner core material 13 is accelerated, the flow rate is increased, and the initial liquid discharge time can be shortened. For example, when the number of pushes is 20, it is completed in 10 to 15 times. The inner core material 13 generally has low strength, but since it is protected by the outer core material 14 to reinforce the coating core member 12, the strength of the coating core member 12 is increased,
The durability of the coating tip 2 can be ensured.

The present invention is not limited to the embodiment described above, but can be applied to other forms. The coated core member 12 of the above-described embodiment is one in which both sides of one inner core material 13 are sandwiched between two outer core materials 14, but one outer core material 14 is omitted and has a two-layer structure. It may be one. Even in a four-layer structure in which the inner core material 13 and the outer core material 14 are alternately stacked, a plurality of inner core materials 13 are used as the outer core material 1.
It may have a structure in which five or more layers are laminated so as to be sandwiched between those corresponding to four. The material forming the fibers of the inner core material 13 and the outer core material 14 may be made of another resin.

[0031]

As described above, according to the present invention, it is possible to provide a liquid material applicator in which the time required to start using the applicator is shortened until it becomes ready for use.

[Brief description of drawings]

FIG. 1 is a front view of a state where an application tip portion of an application device according to an embodiment of the present invention is covered with a cap.

FIG. 2 is a front view of the applicator with the cap removed.

FIG. 3 is a vertical sectional view of the applicator.

FIG. 4 is a plan view of the application tip portion of the application device with the cap removed.

FIG. 5 is a vertical cross-sectional view of the valve device of the applicator.

FIG. 6 is a perspective view of an application core member of the application device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Handle part, 2 ... Coating tip part, 11 ... Mounting frame, 12 ... Coating core member, 13 ... Inner core material, 14 ... Outer core material, 21 ... Storage part, 22 ... Connection cylinder part, 23 ... Mounting cylinder part , 12b ... intermediate leg portion, 31 ... storage chamber, 33 ... valve device, 35 ... holding frame,
36 ... Valve seat member, 37 ... Valve body, 38 ... Valve hole.

Continued front page    F-term (reference) 2C350 GA04 HA15 KA01 KA09 KA10                       KC02 KC11 KD09 NA10 NA11                       NC20 NC30                 3E014 PA01 PD12 PE01 PE14 PE25                       PF10                 4F040 AA01 AB04 AC01 BA09 CA02                       CA14                 4F042 AA01 FA25 FA30 FA39

Claims (3)

[Claims] 1. An applicator for a liquid material, wherein a coating portion is connected to a handle portion having a liquid material storage chamber formed therein, and the liquid material in the storage chamber is supplied to a coating core member of the coating portion. In the above, the coated core member includes a core member having a multi-layer structure in which a plurality of core materials each formed by collecting fibers are stacked, and at least one core material has a fiber-fiber gap between other core materials. A liquid applicator, which is formed to be larger than the object. 2. A coating unit comprises a coating frame member which is movably held by being pushed into a mounting frame, and a normally closed valve is provided in the middle of a passage for supplying a liquid substance from the storage chamber to the coating core member. The liquid material applicator according to claim 1, wherein the normally closed valve is opened by pushing the application core member to supply the liquid material to the application core member through the passage. 3. The coating core member has a multi-layered structure in which a plurality of T-shaped plate-shaped core members are stacked, and the coating core member is fitted in a housing portion of a mounting frame and at the same time. 3. The liquid applicator according to claim 2, wherein the T-shaped intermediate leg portion is inserted into a passage for supplying the liquid material in the storage chamber to the application core member and is connected to the normally closed valve.