JP2690542B2 - Cutout pen - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is to write paper on a paper in the same manner as a writing instrument to weaken the paper into an arbitrary linear shape, and to draw it as needed immediately after writing or afterwards as needed. The present invention relates to a cutting pen that can be cut along a weakened line by pressing.

[Conventional technology]

The present inventor has studied a cutting pen that can be cut as written by pulling or pressing after writing on paper.

Paper is a sheet filled with fillers entangled with fibers, so it is weak against water, and if you rub it with a hard needle-shaped material while locally supplying a large amount of water, the entanglement of the fibers will be easily unraveled and it will be very efficient and linear. Found that it could be vulnerable to
In Japanese Patent Laid-Open No. 104900, a cutting pen is proposed, in which the periphery of a water absorbent material is surrounded by a hard material having a roughened surface at the tip. According to this technology, a large amount of water is first supplied from the water absorbent material at the writing end to the part of the paper where it is desired to weaken, and it moves while pressing the weakened paper with the hard material having a rough surface, resulting in deep scratches. Even if it occurs, it can be broken just as written by pulling it even after drying.

[Problems to be solved by the invention]

However, if the periphery of the water absorbent material is surrounded by a hard material, the water supply from the water absorbent material is insufficient, and when the hard material is rubbed, a sufficient effect cannot be obtained. In addition, rubbing with a hard material having a roughened tip tends to loosen the entanglement of the fibers without cutting the fibers of the paper, weakening the paper in a wide width, and tending to make a breach. Rather, it is better to cut the paper fiber over about half the thickness of the paper by rubbing it with a sharp tip that is poorly moistened and weakened, so that a sharp tear can be obtained when pulled later. I found it. Based on this recognition, the present invention provides a cutout capable of cutting fibers at a wet portion up to about half the paper thickness immediately after supplying sufficient moisture to weaken the paper by writing with slightly strong writing pressure. With the goal.

[Means for solving the problem]

The present invention is to solve the above-mentioned object, and the configuration thereof has a writing end made of a water-absorbing material, and a base portion of the writing end is in contact with a wetting liquid stored in a writing instrument shaft portion. In the pen, the periphery of the base of the writing end is surrounded by a ring made of a hard material, and a needle-shaped protrusion having a hard and smooth tip is projected from one location of the hard material, and It is characterized in that one end is cut.

In the present invention, the writing edge refers to the tip of the water-absorbent material exposed from the writing instrument.

The water absorbent material according to the present invention is preferably a material such as a fiber bundle, felt or sponge. Among them, synthetic and natural fiber bundles are preferable materials because they can supply sufficient moisture by capillary action even when they are hard and dense, and they are durable and preferable materials. Protrude to form the writing edge.

The circumference of this writing edge is surrounded by a ring made of a hard material. To enclose, a ring may be formed in advance from a hard material, and a writing end made of a water-absorbent material may be inserted into this, but as shown in FIG. 3, a plate-like body made of metal or the like is bent into a ring shape. Those that are preferred are. In this case, molding is easy, and at the same time, the ring, which is cut at one place, has elasticity in the ring itself, so that the water-absorbing material can be easily inserted, and even after the insertion, it is difficult to drop due to this elasticity.

The needle-shaped protrusion is formed by extending from the ring. The tip is inferior in needle-like shape, and it is preferable that the tip has a round smooth surface so that it slides well on the paper microscopically. The ring and needle-like protrusions are hard and dense materials such as stainless steel, brass, other corrosion-resistant metals, and ceramics. In particular, the needle-like protrusions are 150-200g, which is much larger than the average absolute writing pressure of 60g that ordinary writing instruments receive. Need strength to withstand.

In writing, as shown in FIG. 1, first, the paper is moistened with the water-absorbing material and then rubbed with the needle-shaped projections at the final stage. The tip of the writing end may be cut perpendicularly to the length direction, but it is preferable that the writing end is cut at an angle of 45 ° ± 15 ° with respect to the paper surface and a needle-like protrusion is provided at the longest part. Generally, in the writing state, the writing end is inclined at about 45 ± 10 to 15 degrees. Therefore, when writing, the entire tip of the writing end contacts the paper surface at the same time as shown in FIG. 1, and the wetting efficiency is good. Furthermore, since the writing tool moves in the direction of the arrow in FIG. 1, it is the final step after the needle edge has partially cut the surface of the paper after the writing edge is sufficiently wet and weakened. The effect of weakening line processing is further improved.

It is preferable that the needle-like protrusions are substantially equal to the longest part of the water-absorbent material forming the writing end. This is a writing
It is most effective that the writing end is contracted in the lengthwise direction by the writing pressure, and the tip of the needle-like protrusion cuts into the paper at this stage. The other end of the water-absorbent material comes into contact with the wetting liquid stored in the writing instrument shank, so that when the writing end is pressed against the paper, the water of the shank can be constantly supplied.

The wetting liquid may be water, and preferably, a coloring amount of a dye or the like is added so that it can be discriminated even after the site where the line of weakening has been processed. Moreover, you may mix | blend other wetting agents, such as glycerin. Outflow of wetting liquid from the writing edge is 0.3g / 100m-1.6g /
It is 100 m, which is far more than the flow rate of the writing fluid of a normal writing instrument.

Water may be absorbed in the cavity of the writing instrument shaft by filling it with water or filling it with a water-absorbing material such as sponge.

[Action]

According to the present invention, a water absorbent material that is in communication with water contained in the shaft is used as a writing end, and a large amount of water sufficient to weaken the paper during writing is supplied. Further, the writing end base is surrounded by a ring made of a hard material, and one needle-like projection is extended from the ring. Since the needle-shaped projections slide on the part of the paper weakened by wetting due to the contact of the writing edge, the paper fibers are partially cut and the state that the paper fibers are weakened as written even after the water evaporates and the paper dries. continue. Therefore, even if it comes later, it can be broken just as drawn by pulling.

Moreover, since the ring made of a hard material surrounds only the base of the writing end, it does not hinder the water supply force of the writing end. Since the needle-like protrusions have inferior tips and are microscopically processed to have a smooth surface, it is possible to cut wet paper fibers to about half the thickness of the paper, and to make sharp tears when tearing later. Is obtained.

〔Example〕

FIG. 1 is a side view showing a usage state of the cutout pen of the present invention. Reference numeral 1 is a writing end made of polyester fiber and having a diameter of about 3 mm, and the tip was cut at a writing angle of about 50 degrees. Reference numeral 2 is a needle-like protrusion provided outside the longest portion of the writing end 1, and the base portion forms a ring 3 as shown in FIG. It is also possible to manufacture by inserting the writing end 1 made of the water-absorbing material into the ring 3. Reference numeral 4 is a shaft portion of the writing instrument, the internal structure of which is similar to that of a normal writing instrument, and is different only in that the amount of water supplied to the writing end 1 is extremely large. The amount of water supplied was 1 g / 100 m as written slowly. Reference numeral 5 is a paper that is weakened.

The feeling when writing is a little hard, but it slides well,
I was able to draw the curve freely. In this example, a small amount of yellow dye was added to the wetting liquid. The handwriting became light yellow, and it was difficult to distinguish the handwriting after drying without coloring, but it was significantly weakened. This weakened state did not restore even after the wetting liquid dried, and the fragility of this site was almost the same immediately after writing and after 2 days.

FIG. 2 shows the needle-shaped projections 2 and the ring 3 made of hard stainless steel and integrated with each other. By inserting the water-absorbent material into the ring 3, it was possible to surround the writing end with a hard material having a needle-like protrusion at one end.

FIG. 3 shows another embodiment of a hard material having needle-like protrusions. A plate 6 having a needle-like protrusion 2 in a central portion made of brass is provided with a writing end made of a water-absorbing material and a tip of the needle-like protrusion 2 is It was surrounded so as to almost coincide with the leading edge of writing edge 1. According to this method, writing was easy, and even complicated lines could be broken accurately after writing and productivity was improved.

〔The invention's effect〕

According to the present invention, since only the base of the writing end is surrounded by the ring made of a hard material, the supply of sufficient water is not hindered. In addition, since the tip is a microscopically smooth surface, it is possible to cut paper fibers that are actually wet over about half the paper thickness, and to write complex curves smoothly, immediately after writing, and after drying. You can easily tear the paper as written by simply pulling.

[Brief description of the drawings]

FIG. 1 is a side view showing a use state of the present invention, FIG. 2 is a perspective view showing a state in which needle-like protrusions are extended from a ring, and FIG. 3 is a state in which a plate made of a hard material is curved in a ring shape. FIG. In the drawings, reference numeral 1 is a writing end, 2 is a needle-like protrusion, 3 is a ring, 4 is a shaft portion, 5 is paper, and 6 is a plate.

Claims (2)

(57) [Claims] 1. A cutting pen having a writing end made of a water-absorbent material, the base of the writing end being in contact with a wetting liquid contained in a shaft of a writing implement, wherein the periphery of the base of the writing end is hard. A cutting pen, which is surrounded by a ring made of a material, and has a needle-like protrusion having a hard tip and a smooth tip protruding from one portion of the hard material. 2. A cutting pen having a writing end made of a water-absorbent material, the base of the writing end being in contact with a wetting liquid contained in a shaft of a writing implement, wherein the periphery of the base of the writing end is hard. A cutout pen surrounded by a ring made of a material, wherein a needle-like protrusion having a hard and smooth tip is projected from one portion of the hard material, and one end of the ring is cut.