JPH11165495A - Applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an applicator which is capable of easily applying different color coatings distinguishably from each other regardless of a space, large or small and is free from a trouble to press the lateral face of a container without the necessity to stir a coating liquid. SOLUTION: In the applicator with plural coating tip parts formed on the apex of a single container 1, a ball-point pen has protruding tip parts 3 with balls 6 of different diameters insetted integrally at plural spots, in the tip of a forward barrel 2, and each of the tip parts 3 is of such a construction that a spring pressure is applied to the back face of the ball 5 so as to bring the ball 5 into contact tightly with the inner edge of a ball embracing part 3a at the apex. In addition, the container 1 is joined backward of the forward barrel 2 and is filled with a white pigment coating liquid which contains at least, white pigment such as titanium oxide, polymer hollow microparticles or the like and a gelling agent and also which is blended so that the sedimentation of the pigment is prevented from occurring and at the same time, the fluidity is not impaired. Besides, a follower 11 which prevents the coating liquid from evaporating and follows the coating liquid as it is consumed, is arranged at the rear end of the coating liquid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an applicator filled with a coating liquid for correction for concealing and erasing characters and the like written on paper or the like.

[0002]

2. Description of the Related Art Conventionally, there has been known a liquid applicator using a white pigment in order to correct a mistake or the like. In addition, since the white pigment and the solvent are easily separated from each other, this type of liquid applicator has a flexible container in which the application liquid and a stirring ball are sealed, and it is necessary to shake and stir the liquid before use. Further, the application liquid is discharged by pressing the side surface of the container. However, when the remaining amount of the application liquid is small, the application liquid is not discharged even if the side wall of the container is strongly pressed. An applicator having a plurality of application tips at the tip of one container is also known. Also, the tip of the application is a ballpoint pen tip,
It is known that the back surface of the tip ball is pressed by a spring so that the tip ball comes in close contact with the inner edge of the ball holding portion at the tip of the tip portion.

[0003]

A known applicator has an independent tip secured to the tip of a front shaft, and a spring inserted into an inner hole of the tip. It is. Therefore, there is a problem that it takes time to process the chip and fix the chip to the front shaft, resulting in an increase in cost. or,
When a high-viscosity coating liquid, a coating liquid containing a metal filler, or the like is used, there is a problem that the ejection with the coating liquid is hindered by inserting a spring into the chip. An object of the present invention is to solve the above-mentioned problems and to provide an applicator for correcting an erroneous statement without the need to agitate the application liquid and the inconvenience of pressing the side surface of the container.

[0004]

The present application has the following arrangement to achieve the above object. First, an applicator according to the first aspect of the present invention is an applicator comprising a plurality of application tips at the tip of one container, wherein the tip having a different diameter at a plurality of locations is integrally formed on the tip of the tip axis. A tip portion of a ball-point pen having a ball is protruded, and a spring pressure is applied to each tip portion so that the tip ball comes into close contact with the inner edge of the ball holding portion at the tip portion of the tip portion. A container is joined to the rear of the shaft, and at least titanium oxide, a white pigment such as polymer hollow fine particles and a gelling agent are contained in the container,
Filled with a white pigment coating solution formulated to prevent sedimentation of the pigment and not to impair the flowability, to prevent evaporation of the coating solution at the rear end of the coating solution and to form the coating solution as the coating solution is consumed. A follower that follows is arranged.

According to a second aspect of the present invention, there is provided the applicator according to the first aspect, wherein the tip portion has a ball receiving seat that comes into contact with the back surface of the tip ball when pen pressure is applied. A spring seat that presses the back surface of the tip ball so that the tip ball is in close contact with the inner edge of the ball holding portion is provided at a required position, and between the provided ball receiving seat and the spring seat from the tip rear end. A liquid inflow groove for supplying a coating liquid to the tip ball is formed.

According to a third aspect of the present invention, there is provided the applicator according to the first and second aspects, wherein a valve chamber is provided at an axis communicating the leading shaft and the container, and a rear portion of the valve chamber is provided. Is provided with a tapered or spherical valve element receiving seat, the valve element is loosely fitted in the valve chamber, and when the tip side is upward, the valve element is in close contact with the valve element receiving seat and the conducting hole is sealed and applied. Backflow of the liquid is prevented, and the sealed state is released when the tip side is downward, so that the coating liquid flows into the tip part.

[0007]

An embodiment will be described below with reference to the drawings. First, as shown in FIG.
And a front shaft 2 having two tip portions of a ballpoint pen projecting from the tip of the container 1 in a liquid-tight manner.

The tip shaft 2 has two tip portions 3 and 6 in the forward direction.
Is a resin molded product protruding, and its tip portions 3 and 6
Are provided with tip balls 5 and 7 having different diameters. The container 1 is a cylindrical body made of resin and has a ventilation groove 13a at the rear end.
The tail plug 13 having the shape is fixed. The tip portion of the ballpoint pen can be provided in three or more places, and the container is not limited to a cylindrical shape. When the container is not cylindrical, the connection with the front shaft is made by pressure bonding or welding.

A bush 8 is crimped to the tip end hole of the container 1. A valve chamber 8a is provided at the axial center of the bush 8, and a tapered or spherical valve element receiving seat 8b and a guide hole 8d are formed at the rear end of the valve chamber. Also, a groove 8c is formed so that the coating solution flows in the axial direction at a required position on the inner wall of the valve chamber 8a.
Are formed. In a state where the spherical valve element 9 is loosely fitted in the valve chamber 8a and the tip portion side faces downward, the valve element 9
Is in contact with a contact portion 2a bulging rearward in an inner hole portion of the front shaft 2 so that the coating liquid can be supplied into the chip portion. 9 is in close contact with the valve body receiving seat 8b in a liquid-tight manner and the conducting hole 8d is closed, so that a function of preventing the backflow of the coating liquid is obtained. Note that this backflow prevention mechanism is not always necessary because the tip ball is pressed so as to be in close contact with the inner surface of the ball holding portion of the tip portion. It is effective.

In the embodiment shown in FIG. 1, the front shaft 2 and the container 1 are joined by screwing. However, the front shaft and the container can be formed as an integral resin molded product. In that case, the bush 8 is provided so as to be fixed to an inner hole at a position corresponding to the joint between the front shaft and the container. As another means, it is also possible to form the container into a simple cylindrical body by pressing the front outer peripheral portion of the bush to the rear end hole of the front shaft and pressing the rear outer peripheral portion of the bush to the front end hole of the container. It is.

The container 1 contains a white pigment coating liquid 10.
The coating liquid is filled at the rear end with a grease-like follower 11 that follows the coating liquid as the coating liquid is consumed. The follower is not compatible with the coating solution and has a function of preventing the coating solution from evaporating. A follower rod 12 made of resin and having a specific gravity substantially equal to that of the follower is immersed in the follower as needed. The follower may be a follower such as silicon rubber. The white pigment coating liquid 10 contains at least a white pigment such as titanium oxide and polymer hollow fine particles and a gelling agent, and is blended to prevent sedimentation of the pigment and to minimize the loss of fluidity. It is a pigment coating liquid. Further, since the coating liquid has a shear thinning property, the coating liquid having a high concealing property can be applied in combination with the decrease in the viscosity as the tip ball rotates.

Next, the chip sections 3 and 6 will be described.
Since the chip units 3 and 6 have basically the same configuration, the chip unit 3 will be described below. As shown in FIGS. 2 and 3, the tip portion 3 is rotatably held with the tip ball 5 substantially in contact with a seat having a channel 4 into which the coating liquid can flow. Caulked. (Ball holding portion 3a) Further, the channel portion 4 will be described in detail.
The ball receiving seat 4a which comes into contact with the back of the tip ball 5 when writing pressure is applied thereto and the spring seat 4b which presses the back of the tip ball 5 so that the tip ball 5 comes into close contact with the inner edge of the ball holding portion 3a. A liquid inflow groove 4c which is arranged alternately in a radial manner and which can supply a coating liquid from the rear end of the chip portion 3 to the tip ball 5 between the ball receiving seat 4a and the spring seat 4b.
Are formed.

In a known example, a spring is provided in the inner hole of the chip and a tip ball is pressed at the tip thereof, or a top having a rod shaft portion for pressing the back surface of the tip ball at the front surface of the spring is interposed. However, according to this embodiment, members such as springs and tops are omitted, and a plurality of chip portions can be formed by a resin molded product integrated with the front shaft, thereby reducing cost. Will be extremely superior. Further, when the coating liquid has a high viscosity or contains a metal filler, the flow of the coating liquid may be hindered by the intervention of a spring or the like, but even in such a case, the embodiment is advantageous. Further, it is desirable that the tip shaft be a resin molded product having excellent spring properties, abrasion resistance, and sealing performance for the coating liquid, and to improve the close contact accuracy between the tip ball and the inner surface of the ball holding portion in the tip portion.

FIGS. 4 and 5 show another embodiment of the chip portion. As shown in the figure, the tip portion 14 is fixed to a channel member 15 into which the coating liquid can flow, and is caulked so that the tip ball 16 is rotatably held with the tip ball 16 substantially in contact with the seat. Have been. (Ball holding portion 14a) The channel member 15 will be described in detail.
The channel member 15 fixed to the rear surface of the tip ball 16 at the end thereof is so positioned that the ball receiving seat 15a and the tip ball 16 which come into contact when writing pressure is applied are in close contact with the inner edge of the ball holding portion 14a. Spring seats 15b for pressing the back surface of the ball 16 are arranged alternately in a radial pattern, and a tip portion 14 is provided between the ball seat 15a and the spring seat 15b.
There is formed a liquid inflow groove 15c that enables the application liquid to be supplied to the tip ball 16 from the rear end. The channel member 1
5 is made of resin or metal. In this case, since the channel member 15 is provided separately, there is an advantage that it is easy to select a material having excellent spring properties and abrasion resistance.

[0015]

Next, the operation of the embodiment will be described below. Since the applicator of the embodiment has two tip portions having tip balls of different diameters, one tip portion 3 has a large tip ball 5 and the other tip portion 7 has a small tip ball 7. In the case where the chip portion 3 is applied in a wide place by forming the chip portion 6, the tip portion 3 is used in the case where the chip portion 3 is applied in a narrow place.

FIG. 1 shows a state in which the tip portion is directed upward. At this time, the valve element 9 is provided with a valve element receiving seat 8b of the valve chamber 8a.
And closes the guide hole 8d, so that even if the writing liquid is written upward and the coating liquid on the back surface of the tip end ball of the chip portion runs out, the coating liquid is caught by the head and does not flow backward. Therefore, when the tip portion is turned downward, the coating liquid can immediately flow out. (By the way, in the structure having no valve element, when the upward writing is repeated, the coating liquid acts in the backward flow direction, so that air is entrapped in the chip portion, and it becomes difficult for the coating liquid to immediately flow out in the downward writing.)

Further, in the tip portion 3, the tip ball 5 is brought into close contact with the inner edge of the ball holding portion 3a by the pressing of the spring seat 4b, so that direct current and drying of the coating liquid are prevented. Further, since the tip ball 5 is slightly retracted by the writing pressure, a gap is generated so that the coating liquid can flow out, thereby making it possible to correct a typographical error or the like having a concealment property.

[0018]

The construction and operation of the present invention are as described above. A convenient applicator capable of easily applying different coatings according to the size of the application area is different from a conventional applicator in chip processing and chip application. It can be provided at a low cost because there is no need to attach to the front shaft. Further, when a high-viscosity coating solution or a coating solution containing a metal filler is used, the problem that the ejection with the coating solution is hindered by inserting a spring into a conventional chip can be solved. Further, there is no problem that the white pigment and the solvent are separated from each other as in the prior art, so that it is not necessary to agitate the ink, and it is not necessary to press the side of the container during the coating operation.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing the entire applicator of an embodiment.

FIG. 2 is an enlarged sectional view of a chip portion.

FIG. 3 shows a view in section of the channel of FIG. 2 slightly in front;

FIG. 4 is an enlarged sectional view of a chip portion according to another embodiment.

FIG. 5 shows a view of the channel member of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Front shaft 2a Contact part 3 Tip part 3a Ball holding part 4 Channel 4a Ball receiving seat 4b Spring seat 4c Liquid inflow groove 5 Tip ball 6 Tip part 7 Tip ball 8 Bush 8a Valve chamber 8b Valve seat 8c Groove 8d Guide hole 9 Valve 10 Coating liquid 11 Follower 12 Follower rod 13 Tail 13a Vent groove 14 Tip 14a Ball holding portion 15 Channel member 15a Ball receiving seat 15b Spring seat 15c Liquid inflow groove 16 Tip ball

Claims (3)

[Claims] In an applicator having a plurality of application tips at the tip of one container, a tip portion of a ballpoint pen having tip balls having different diameters at a plurality of locations integrally at the tip of a tip axis. In each tip portion, a spring pressure is applied to the back surface of the tip ball so that the tip ball is in close contact with the inner edge of the ball holding portion at the tip of the tip portion, and the container is joined to the back of the tip shaft, At least titanium oxide in the container,
Filled with a white pigment coating liquid containing a white pigment such as polymer hollow microparticles and a gelling agent, and formulated to prevent sedimentation of the pigment and not to impair the fluidity, and to be applied to the rear end of the coating liquid An applicator comprising a follower which prevents evaporation of the liquid and follows the coating liquid when the coating liquid is consumed. And a spring seat for pressing the back surface of the tip ball so that the tip ball comes into close contact with the inner edge of the ball holding portion when the pen pressure is applied to the back surface of the tip ball. Is disposed at a required location, and a liquid inflow groove is formed between the disposed ball receiving seat and the spring seat so as to be able to supply a coating liquid from the rear end of the chip to the tip ball. Item 6. The applicator according to Item 1. 3. A valve chamber is provided at an axis communicating the front shaft and the container, and a tapered or spherical valve element receiving seat is provided at a rear portion of the valve chamber, and the valve element is loosely fitted in the valve chamber. When the tip side is upward, the valve body is in close contact with the valve body receiving seat, and the conducting hole is sealed to prevent the backflow of the coating liquid. The applicator according to claim 1, wherein the applicator is configured to flow.