JP3368089B2 - Writing or applicator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing tool or applicator for writing or applying a liquid such as ink, paint, glue, or cosmetics.

[0002]

2. Description of the Related Art Conventionally, a writing instrument or an applicator which has a roller at its tip and which discharges ink, glue, paint, etc. by rotating or rotating and displacing the roller has a smooth feel and a wide and smooth surface. However, unlike writing instruments using a ball (ballpoint pen) or applicators (ballpoint pen type), the direction of rotation is fixed and it is possible to follow the axis of the roller. It cannot rotate in the direction. Since the roller is in line contact with the writing surface or the application surface, the writing or application direction is limited, and it is not possible to obtain fine handwriting or the application surface at the same time. In addition, in writing instruments or applicators that use rollers, it is difficult to prevent liquid leakage at the roller ends, and the writing instrument or applicator with a container for filling ink, paint, etc. should be finished by giving itself a valve function. Was difficult.

As a countermeasure against the liquid leakage at the end of the roller, it is possible to improve it by forming the end of the roller into an R shape so that the ball tip of the ballpoint pen has a structure in which the liquid does not easily leak. However, in order to form a roller in a sausage shape having an R-shaped end portion or a rugby ball shape as proposed by the previous application, high precision is required and it cannot be manufactured at low cost. Is not satisfactory as a technical problem.

Further, a writing instrument or applicator using fibers such as felt for the tip is generally effective against the above-mentioned drawbacks, but it is not effective for high viscosity liquids or liquids containing a large amount of solids such as pigments. It was not suitable for liquids that could not be impregnated with, and could not maintain airtightness to prevent the liquids from drying, and it was inferior to the case of using rollers in terms of smooth writing comfort.

[0005]

DISCLOSURE OF THE INVENTION According to the present invention, a roller is arranged at the tip of a writing instrument or an applicator to obtain a smooth writing feeling and a wide handwriting or an application surface, which are advantages of the roller, and further arrange a ball. With the help of the fine coating and the limitation of the writing direction, which are the drawbacks of the roller, you can get the same handwriting or application surface as a felt-tip pen and usability. Or to obtain an applicator.

[0006]

DISCLOSURE OF THE INVENTION The present invention is a tip chip comprising a writing or coating roller having recesses at both ends and balls disposed at both ends thereof, which are rotatably wrapped and held in a chip holder. A writing instrument or an applicator comprising:

The diameter of the roller may be slightly smaller than the ball diameters at both ends of the roller so that the roller can be easily moved in the axial direction when a narrow handwriting or coated surface is obtained.
Because the roller makes a line contact with the other surface and the ball makes a point contact, the ball has a stronger contact and tends to sink deeply, and when the ball and the roller have the same diameter, the edge of the roller is easily caught on the other surface.

The difference between the diameter of the roller and the diameter of the ball is the diameter of the ball, the condition of the mating surface for writing or coating (hereinafter simply referred to as mating surface), the viscosity of the ink or coating liquid, the physical properties such as spinnability, and the like. Although it depends on the thickness of the layer to be applied, the rattling of each chip component, etc., it must be within the range where liquid runoff does not occur when moved in the roller rotation direction.

When the ball alone located at the end of the roller is used as a writing or coating means, it is possible to obtain the same handwriting or coating surface and usability as a general ballpoint pen.
When the roller is placed with an inclination with respect to the tip of the tip or the surface perpendicular to the axis of the writing instrument or the applicator, and the ball on one side is projected, when this ball is used alone, The contact portion is easy to see and it is easy to aim at the writing or application position.

At this time, since it is used in a holding direction different from the case where the roller and the ball are used at the same time, a virtual surface surrounded by the opening edge of the holding hole around the ball on the side to be used alone is framed. If the exposed surface of the ball is increased and the usable range of the writing or application angle is widened by forming a curved surface or a plurality of surfaces, the usability becomes closer to that of a general ballpoint pen.

When a roller is used, the writing or coating angle is limited, so setting the inclination of the roller in accordance with this angle makes it easier to use.

Further, the inside of the tip of the chip holder is fitted to the outer shape of a rotating body which is a combination of a roller and a ball, and the entire circumference of the opening edge of the holding hole is shaped so as to have a tapered shape. By covering the entire outer shape of the chip with a curved surface, the chip or the chip holder comes into close contact with the inside of the chip holder or inscribes in a wedge shape, so that the ink or the coating liquid can be prevented from leaking and the airtightness can be maintained.

The roller may be made of rubber or urethane as a material and has elasticity, or may be a rigid body made of metal, ceramic or resin.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. In each of the embodiments, the same members and the same parts are designated by the same reference numerals.

1 to 3 show a first embodiment of a writing instrument of the present invention, in which a tip 1 is a tip holder 2
And a writing roller 4 having recesses 3 at both ends and balls 5 arranged at both ends thereof.

A holding hole 6 for the roller 4 and each ball 5 is formed in the chip holder 2, and the roller 4 and each ball 5 are held by an opening edge portion 7 processed into a tapered shape, It is pressed by the roller seat 8 and the ball seat 9 formed in the holding hole 6 to prevent the ball seat 9 from entering the inside of the chip holder. A first ink passage (capillary hole) 10 and a second ink passage 11 are connected to each ball seat 9, and when the roller 4 and each ball 5 are seated on the roller seat 8 and each ball seat 9, Shaft cylinder 14
In order to secure the flow of the ink 15 contained therein, each of the roller channel 12 and the ball channel 13 is punched. The roller 4 and the ball 5 have the same outer diameter, and the recess 3 is formed in a shape and depth in which the ball 5 sunk into the roller 4 by half.

FIG. 2 shows a longitudinal sectional view of the rotary body 16 in which the roller 4 and the ball 5 are combined. The outer shape of the rotating body along the line A-A in FIG. 2 has an outer shape as shown in FIG. 3, and is covered with a curved surface that expands in the direction in which the roller 4 and the ball 5 roll in any direction. Even so, the same curved surface is kept.

The tapered shape inside the opening edge portion 7 of the chip holder 2 is formed in conformity with the curved surface of the rotating body 16 and contacts the rotating portion in a wedge-like shape without breaks. Therefore, it is possible to prevent the ink 15 contained therein from leaking as in a general ballpoint pen.

Due to the physical properties of the ink 15, in order to obtain higher airtightness, a means for urging one or both of the roller 4 and the ball 5 toward the tip of the tip may be provided. A second embodiment of the writing instrument of the present invention provided with such means is shown. In the first embodiment, springs 17 are arranged in the first and second ink passages 10 and 11, respectively. The balls 5 are urged toward the tip side of the tip 1, and the rollers 4 are urged by the balls 5 so that the rotating body 16 comes into close contact with the inside of the opening edge portion 7 of the chip holder 2 and It is designed to be airtight.

FIG. 5 shows a third embodiment of the writing instrument of the present invention. In the tip holder 2'of the tip 1'of this embodiment, a holding hole portion 18 for holding the rotating body 16 is provided. A ball seat 19 is formed in the holding hole portion 18 at a position separated from the ball 5, and the rotating body 16 can displace the holding hole portion 18. The holding hole 18 has a large diameter first hole formed in the center of the chip holder 2 '.
Second ink passage (capillary hole) 20 of
The ink passages 21 are communicated with each other.

The rotating body 16 is provided with a spring 22 arranged in the first and second ink passages 20 and 21.
It is biased toward the tip side of the chip holder 2'through a T-shaped pressing body 23 as shown in the figure, and is tightly adhered to the inside of the opening edge 7'of the chip holder 2 ', so that the inside airtightness is improved. I keep it. The pressing body 23 is a chip holder 2 '.
A stopper 24 formed on the inner wall of the second ink passage 21 is formed so as not to go into the inside too much.

FIGS. 6 to 8 show a fourth embodiment of the writing instrument of the present invention. In the writing instrument of the first example, the roller is a pipe-shaped roller 25 and the diameter of each of the balls 5 is different. The diameter is slightly smaller than the diameter. Roller 2
The difference between the diameters of the ball 5 and the ball 5 is that the edge 26 of the roller 25 does not catch on the mating surface (not shown) when writing in the axial direction of the roller 25, and the ink 15 It is designed so that good handwriting can be obtained without fading.

FIG. 7 shows a longitudinal sectional view of a rotating body 27 in which the roller 25 and each ball 5 are combined. The outer shape of the rotating body along the line BB in FIG. 7 has a shape as shown in FIG. 8, and is covered with a curved surface that expands in a direction that swells backwards. The inside of the chip holder 2 is kept airtight as in the first embodiment.

FIG. 9 shows a fifth embodiment of the writing instrument of the present invention. In the case of the arrangement of the rollers 4 and the balls 5 as shown in the first embodiment, each ball 5 is used. If you use the writing tool tilted so that one of them will come into contact with the other surface, you can write it as finely as a general ballpoint pen.
You can get handwriting that is not affected by the direction of writing,
The width of the roller 4 is an obstacle, and it is difficult to see the upper side of the contact portion with the ball 5 on the other surface for writing or applying. Therefore, the roller 4 is tilted so that the side of the ball 5 that uses the tip 1 "alone protrudes in the tip direction to make it easier to see the other surface and to aim at the position where you want to write. It is even easier to use if you match the writing angle when using it.

However, if the virtual surface 28 surrounding the opening edge 7 "of the chip holder 2" is only one plane, the writing angle is limited when the ball 5 on the protruding side is used alone. In order to widen this limitation, the exposure of the ball 5 to the outside is increased and the virtual surface 28 is provided with a virtual surface M for using the roller 4 and a virtual surface N for using the ball 5 alone. good. 10 and 11 show the sixth and seventh parts thereof.
In the embodiment of FIG. 10, the virtual surface N is formed by a flat surface in the embodiment of FIG. 10, and the embodiment of FIG. 11 is formed by a continuous curved surface.

Each of the above-mentioned writing instruments can employ a known structure for the portion other than the tip according to the application, and FIG. 12 shows that the ink is transferred from the ink occlusion body 29 to the ink relay core 3.
This is an embodiment in which the ink is supplied to the ball via 0, and FIG. 13 is an embodiment in which the container 30 containing the ink has a flexible structure.

FIGS. 14 and 15 show another embodiment of a rotating body formed by combining a roller and a ball. FIG. 14 shows three rollers 31 and 32 having the same diameter as two kinds of lengths 31 and 32. 2 shows an example of a case where the ball 5 is arranged on the plane in the direction along the axis of the tip 33 so that two kinds of handwriting with different widths can be obtained. FIG. 15 shows three rollers 3 of the same length.
A rotating body 36 in which three balls 5 having the same diameter as 5 are arranged in a triangular shape on a plane parallel to a mating surface (not shown).
Is an example of a case where a handwriting with a small width difference depending on the writing direction is obtained.

FIG. 16 shows another embodiment of the roller. In order to facilitate the processing of the recess of the roller that comes into contact with the ball,
The roller 37 is made of a pipe-shaped material such as stainless steel, so that the roller 37 and the ball 5 indicated by the chain double-dashed line can easily rotate independently, so that the ball 5 does not come into strong contact with the recess 38 of the roller 37. In this example, the spring 39 is internally provided in the pipe.

Although the writing tool has been described in the present embodiment, the above-described embodiments can be similarly applied to the applicator.

In the present invention, in order to easily and inexpensively manufacture, parts such as rollers and balls are provided from the rear of the chip holder without providing the roller seat and ball seat as shown in each embodiment. It may be put in and assembled.

As the method of manufacturing the tip of the embodiment of the present invention, cutting and other plastic working (using a die manufactured in the same shape as the outer surfaces of the ball and the roller, from the inside to the tip direction of the tip or Is the opposite direction, such as caulking that narrows the tip), casting with a mold (resin / metal injection molding, die casting, etc.), electroforming and etching, press molding, and caulking by electromagnetic molding. Alternatively, there is a molding method that combines them.

The rollers and balls are made of magnetic material,
If one or both are magnetized, it is convenient for assembly and the like.

[0033]

Since the writing instrument or applicator of the present invention has the structure as described above, smooth writing comfort and a wide handwriting or application surface can be obtained, and since the ball is arranged, the writing direction is restricted. By using the ball alone, it is possible to write and apply details that are the drawbacks of the roller, and you can get the same handwriting or application surface as the felt pen and the usability, and the fiber is not suitable for the felt pen. It was possible to obtain a writing instrument or an applicator that was compatible with liquids that could not be applied.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a tip portion of a writing instrument according to a first example of the present invention.

2 is a longitudinal sectional view of a rotating body formed by combining a roller and a ball in FIG.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a vertical cross-sectional view of a tip portion of a writing instrument according to a second embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view of a tip portion of a writing instrument according to a third example of the present invention.

FIG. 6 is a vertical cross-sectional view of a tip portion of a writing instrument according to a fourth example of the present invention.

7 is a vertical cross-sectional view of a rotating body formed by combining a roller and a ball in FIG.

FIG. 8 is a cross-sectional view taken along the line BB in FIG.

FIG. 9 is a vertical cross-sectional view of a tip portion of a writing instrument according to a fifth example of the present invention.

FIG. 10 is a front view of the tip portion of the writing instrument according to the fifth embodiment of the present invention, showing another first state of the virtual surface surrounding the ball holder hole end of the tip holder.

FIG. 11 is a front view of the tip end portion of the writing instrument according to the fifth embodiment of the present invention, showing another second state of the virtual surface surrounding the hole end of the ball holding portion of the tip holder.

FIG. 12 is a front view of the writing instrument with a part in a cross-sectional state showing one usage state of the writing instrument.

FIG. 13 is a front view of the writing instrument with a part in a sectional state showing another state of use as the writing instrument.

FIG. 14 is a vertical cross-sectional view of a tip portion showing another embodiment of a rotating body formed by combining a roller and a ball.

FIG. 15 is a plan view of a rotary body portion showing another embodiment of the rotary body formed by combining a roller and a ball.

FIG. 16 is a vertical sectional view showing another embodiment of the roller.

[Explanation of symbols]

1, 1 ', 1 "tip 2, 2 ', 2 "chip holder 3 recess 4 rollers 5 balls 7,7 ', 7 "opening edge 16 rotating body 25 rollers 27 rotating body 28 Virtual plane 31, 32, roller 33 Tip 34 rotating body 35 roller 36 rotating body 37 roller

Claims (5)

(57) [Claims] 1. A writing or coating roller is partly exposed to the outside and rotatably held on the tip, and a writing or coating ball is partly exposed to the outer end of the roller. A writing tool or applicator, which is exposed and rotatably held, and writes or applies a liquid such as an ink contained therein by rotating or rotating or displacing one or both of the roller and the ball. 2. The writing implement or applicator according to claim 1, wherein the diameter of the roller is slightly smaller than the diameter of a ball located at the end of the roller. 3. The writing implement or applicator according to claim 1 or 2, wherein the roller is inclined with respect to a tip tip holding the roller or a plane perpendicular to the axis of the writing implement or applicator. Writing or applicator provided. 4. The writing implement or applicator according to claim 1, 2 or 3, wherein a virtual surface surrounded by an opening edge of a ball holding hole formed in at least one chip holder holding the ball is a curved surface. Alternatively, a writing instrument or an applicator including a plurality of surfaces. 5. The writing instrument or applicator according to claim 1, 2, 3 or 4, wherein the roller is formed in a concave shape so that the entire outer periphery of both ends of the roller is in contact with the surface of each ball. And, the outer shape of the entire rotating body formed by the roller and the ball is constituted by a curved surface, and the entire circumference of the opening edge portion of the holding hole portion of the chip holder for holding the entire rotating body is rotated toward the front side. Writing tool or coating formed in a tapered shape so as to wrap around, and formed so that the entire inner circumference of the opening edge of the holding hole portion can contact the surface of the rotating body when not writing or applying. Ingredient