JP2015128891A - Writing instrument refill storage body, writing instrument body and writing instrument set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a writing instrument refill storage body, a writing instrument body using the same and a writing instrument set in which a case for storing the writing instrument refill is reusable, and, even when a writing instrument body for newly storing a refill incorporating thermochromic ink does not include a friction body, handwriting by the thermochromic ink can be thermally changed easily and surely.SOLUTION: In a refill storage body 1, one or more writing instrument refill 4 is stored in a container body 2 for opening/closing an opening 21 with a cap 3, a writing instrument refill 4 incorporates thermochromic ink, and at least one of the cap 3 and the container body 2 becomes a friction body. In a writing instrument body, the writing instrument refill 4 is stored. A writing instrument set comprises the refill storage body 1 and the writing instrument body.

Description

  The present invention relates to a writing instrument refill container. Furthermore, the present invention relates to a writing instrument refill storage body in which a writing instrument refill is stored in a container body with a cap, a writing instrument body using the writing instrument refill, and a writing instrument set including these.

Conventionally, in writing instruments such as ballpoint pens, refills containing ink are housed in a shaft cylinder having a replaceable structure, and those that can be exchanged and reused after ink consumption have been widely sold. Yes. There are also customized writing instrument sets that users can purchase as their original writing instruments by purchasing their favorite refills and separate writing instrument bodies (empty shafts) from multiple types.
The refill applied to each writing instrument is generally displayed and sold at a store in a state of being housed and packaged in a film (see, for example, Patent Document 1). On the other hand, for the purpose of saving space during refill display or transportation, a container (case, for example) stored in a cylindrical container with a cap (for example, refer to Patent Document 2) or a plurality (same color or different color) ) In a case that can be suspended.

Japanese Patent Application Laid-Open No. 2008-247452 JP 2010-120684 A

The latter storage container of Patent Document 2 and the like uses a resin-molded case, so that the protection power of the refill to be stored is high, and the appearance at the time of display sales is good.
However, after taking out the refill and storing it in the writing instrument, the case has no use and is discarded.

  Moreover, in thermochromic writing instruments that contain a refill containing thermochromic ink, an elastic friction body is generally applied to quickly and easily thermally change the handwriting formed on the paper surface. In the writing instrument main body that can accommodate the above-mentioned replacement (customization) refill, a plurality of kinds of writing instrument main bodies can be selected, so that the writing instrument main body may not be provided with a friction body. In this case, it becomes difficult to discolor or change color (discoloration) easily with frictional heat immediately after writing, so that it is lacking in practicality as a thermochromic writing instrument. For this reason, it has been difficult to apply a refill containing a thermochromic ink to a customized writing instrument.

The present invention solves the above-mentioned problems, and a case for storing a writing instrument refill can be reused, and a friction body is provided on a writing instrument main body that newly stores a refill containing thermochromic ink. Even if it is not, it is intended to provide a writing instrument refill container excellent in practicality capable of easily and surely changing the handwriting by the thermochromic ink.
Furthermore, the present invention provides a writing instrument main body that can use a refill or a friction body constituting the writing instrument refill storage body, and a writing instrument set comprising these.

The present invention is a refill container in which one or more writing instrument refills are housed in a container body whose opening is opened and closed with a cap, wherein the writing instrument refill contains thermochromic ink, and the cap and container body It is a requirement that at least one of these be a friction body.
Furthermore, a clip is provided, the front end of the cap or the rear end of the container body is a friction part, the rear part of the cap is inserted into the opening of the container body and the cap is fitted, and the rear part of the cap is It is a requirement that it becomes a friction part, the rear part of the cap is a small diameter part inserted and locked in the opening of the container body, and the front part is a large diameter part that becomes a friction part.
Furthermore, it is a requirement that the writing instrument main body in which the writing instrument refill constituting the writing instrument refill accommodating body described above is accommodated, the writing instrument main body not including a friction body, and at least the cap of the writing instrument refill accommodating body and the container main body. One of the requirements is that it can be mounted as a friction body.
Furthermore, the writing instrument body has a locking hole, and the friction body is fitted into the locking hole by any one of fitting, engagement, screwing, and clamping, and the writing tool body has a protective cap. The friction body is attached to the top of the protective cap in a protruding state at the front end, the writing instrument body has a slide lever for pen tip protrusion, and the friction body is attached to the top of the shaft tube in a protruding state at the front end. Is a requirement.
Furthermore, a writing instrument set including the writing instrument refill container according to any one of the above and the writing instrument main body according to any one of the above is required.
In the present invention, “upper” and “front” indicate the opening direction of the container body, and “lower” and “rear” indicate the bottom (closed portion) side of the container body. In the writing instrument main body, “front” indicates the pen tip side, and “rear” indicates the shaft tube side.

  According to the present invention, the case in the form of a molded container constituting the refill storage body can be reused as a friction body without being discarded. Therefore, the empty writing instrument body provided separately is not provided with a friction body. Even if it is a case, by storing a refill containing the thermochromic ink in the container, it is possible to change the handwriting of the thermochromic ink easily and reliably using a case after writing. It will be excellent. In addition, a storage body exterior member (case) such as a cap is attached as a friction body to a writing instrument main body that does not include a friction body, so that it is highly convenient to be able to erase (color change) with a single writing instrument. . Therefore, the thermochromic refill can be applied to a customized writing instrument. Furthermore, by setting the writing instrument refill container and the writing instrument main body as a set, it is possible to perform writing, erasing, and color change by assembling the user securely without wondering how to use.

It is a principal part longitudinal cross-sectional view which shows one Example of the writing instrument refill storage body of this invention. It is an external view which shows the cap removal state (rear insertion state) of the writing instrument refill storage body of FIG. It is a longitudinal cross-sectional view which shows the other Example of the writing instrument refill storage body of this invention. It is a longitudinal cross-sectional view which shows the other Example of the writing instrument refill storage body of this invention. It is a principal part longitudinal cross-sectional view which shows the other Example of the writing instrument refill storage body of this invention. It is an external view which shows the Example of the writing instrument refill storage body of this invention, and a writing instrument main body. It is the external view which shows the Example which set the writing instrument refill storage body of FIG. 6, and the writing instrument main body (b) as a set, and the longitudinal cross-sectional view which shows the Example which assembled | attached the cap and refill of the writing instrument refill storage body to the writing instrument main body. It is a front external view which shows the writing instrument set which displayed the writing instrument refill storage body of FIG. 5, FIG. 6, and the writing instrument main body of FIG.

<Writing instrument refill container>
The writing instrument refill container of the present invention is such that a writing instrument refill comprising at least an ink storage cylinder and a chip containing ink is stored in a container body having one end opened, and the opening of the container body is detachable. It is sealed with a simple cap.

The container main body has one end (upper) and a cylinder having a bottom surface (a portion having a hole that is large enough not to be closed or refilled) at the other end (lower) so as to form a refill storage portion inside. Although it is formed from a metal, wood, resin or the like, a resin is preferable because it has high moldability and can be obtained at low cost. In addition, any shape may be used for the outer circumferential or inner radial cross-sectional shape. However, in the case of single storage, the inner (refill storage portion) is preferably the same shape as the cross section of the ink storage cylinder of the refill. More preferably, it is formed in a circular shape. As a result, the internal empty space in the housed state becomes constant and becomes easy to hold. Moreover, when storing two or more, it is preferable to set it as the internal shape matched with the shape which arranged the refill for the same reason.
In addition, when it is set as a resin molding, the said container may be either transparent or opaque. When formed of a transparent material, the writing instrument refill can be visually recognized from the outside, and when it is opaque, an appearance having excellent decorativeness can be formed without requiring transfer or the like.
Further, the container main body may be constituted by a single member, or may be constituted by a holder for holding a refill in the vicinity of the opening of the shaft body or a part in the form of a tail plug. In this case, since it becomes possible to make a container main body into a complicated shape, the effect by fine dimension prescriptions, such as cap fitting and refill clamping, will become easy to be acquired.
Furthermore, the convenience at the time of storage can also be improved by providing decorative bodies, such as a clip and the protrusion for rolling prevention.

In addition, a holding portion for holding the writing instrument refill (that is, holding at two or more substantially opposed locations) may be formed integrally or separately on the inner wall portion of the container body. As a result, the refill in the storage state is held at a fixed position, and the refill does not move in the container in the storage state, so that the refill falls even when the container opening portion is turned downward with the cap removed. The storage state can be maintained.
The holding portion may be the entire wall surface, but it is preferable to partially provide ribs or protrusions. In addition, as said protrusion, it is preferable to arrange | position the plurality of the same shape at equal intervals in the circumference.
In particular, when a separate holder member (having a through-hole) is fitted and formed in the container opening, the inner wall of the through-hole is used as a holding portion in accordance with the outer diameter of the refill, or the inner wall of the through-hole is made of ribs or protrusions. It is preferable to form a holding part. In this case, since it becomes easy to form a holding | maintenance part separately, it can form with a more highly accurate dimension. In addition, the holder member can be formed with a fitting portion for fitting a cap, so that the cap can be fitted with higher airtightness.

In addition, when the tail plug is used as a separate body, a holding portion extending upward from the bottom surface can be formed, and a structure in which the refill is sandwiched between the inner walls of the container can be taken. In this case, a structure is preferable in which an upwardly extending portion of the tail plug is formed in an annular shape and a refill is inserted and held in the annular portion. The tail plug may be formed with an air hole penetrating the inside and outside of the container to secure an air flow path when the cap is attached / detached.
Furthermore, the fitting part which can insert a cap back can also be formed in the lower part of a tail plug, and it can suppress that a cap is lost when taking out a refill.

  When the container body is a friction body, the entire body is made of a material that becomes a friction body, and an elastic material is attached to a shaft body made of a hard material by fitting, fitting, two-color molding, etc. Can be provided. Moreover, when attaching a separate holder member and tail plug to a container, those edge parts (exposed part) can be comprised with the material (shape) used as a friction body. When the holder member is made of a friction material, the refill can be elastically held, so it is easy to insert and remove the refill.When the tail plug is made of a friction material, the impact at the time of dropping is elastically relaxed and the refill protection power is increased. Get higher. Therefore, when a container main body is used as a friction body, it is preferable to set a friction part in an opening part (holder member) or a rear-end part (a bottom face or a tail plug). The holder member and the tail plug can be removed, and can be used alone as a friction body or can be attached to the writing instrument body.

The cap is a detachable member having a shape capable of sealing the container opening with a structure such as an outer covering or insertion fitting (including a pen tip and a hole through which a refill cannot pass).
When the refill protrudes from the pen tip side and is stored, an inner plug that protects the tip end of the refill tip in the stored state can be provided inside the cap. When the entire cap and the pen tip contact portion are made of an elastic material that becomes a friction body, the cap itself acts in the same manner as the inner plug. Therefore, drying and inadvertent ink leakage from the pen tip can be suppressed without using a hot melt protective film, and the taken out refill can be used immediately without having to remove the protective film. The same effect can be obtained when the tail plug having elasticity and the pen tip are held in contact with each other when the pen tip is stored in the container downward.
In addition, when applying a structure in which the cap can be fitted to the rear end of the container body when the pen tip side of the refill is projected from the opening, the writing instrument refill container alone with the cap inserted backward Writing is possible, and even when a short refill is stored, the total length during writing can be increased. Furthermore, when the tip of the cap is a friction body, it is possible to rub the handwriting in the reverse direction. Therefore, when using a cap as a friction body, it is preferable to set a friction part in a front-end | tip part and a rear-end part.
Furthermore, the convenience at the time of storage can also be improved by providing decorative bodies, such as a clip and the protrusion for rolling prevention.

When the container body or the cap is used as a friction body, friction portions for decoloring or discoloring the handwriting by friction heat are disposed in whole or in part.
As the friction body, an elastic body such as an elastomer or a plastic foam which is rich in elasticity and can generate frictional heat by generating appropriate friction during friction is suitable.
Materials for the friction body (friction part) include thermoplastic elastomers such as olefin, styrene, urethane, polyester, and fluorine, silicone, epoxy, urethane, melamine, urea, and phenol. In particular, silicone resins, SEBS resins (styrene ethylene butylene styrene block copolymers), SBS resins (styrene butadiene styrene copolymers), polyester resins, and the like are preferably used. Furthermore, in consideration of moldability, a blend of a hard resin and an elastic material such as a mixture of a polypropylene resin and a styrene thermoplastic elastomer, a mixture of a polypropylene resin and a polypropylene thermoplastic elastomer, and the like can also be applied. Although the handwriting can be rubbed using an eraser, the above-mentioned elastic body is preferably used because erase scraps are generated at the time of friction.

  The writing instrument refill stored in the container body is a pen containing a pen tip member such as a marking pen tip or a ballpoint pen tip as a writing tip on an ink storage cylinder containing a thermochromic ink, such as a marking pen or a ballpoint pen. It is a refill-type ink container that can be exchanged for the writing instrument body, but a thermochromic solid core can be used instead of the thermochromic ink, and in this case, a mechanical pencil unit can be applied as the writing instrument refill. .

As the ink storage cylinder containing the thermochromic ink, for example, a molded body made of a thermoplastic resin such as polyethylene, polypropylene, polyethylene terephthalate, nylon, or a metal processed body such as a stainless pipe is used. In particular, when a transparent, colored transparent, or translucent resin molded body is used as the ink container, the ink color and the remaining amount of ink can be confirmed from the outside.
In addition to directly connecting the chip to the ink storage cylinder, the ink storage cylinder and the chip are connected via a connecting member. In particular, when a chip is connected to an ink containing cylinder made of a metal processed body or a colored opaque resin molded body via a connecting member, the connecting member is formed of a resin having transparency, so that the inside of the refill can be formed via the connecting member. The presence or absence of ink can be confirmed.

As the ballpoint pen tip, a tip formed by holding a ball in a ball holding portion in which the vicinity of the tip of a metal pipe is pressed and deformed inward from the outer surface, or a metal material is formed by cutting using a drill or the like. A chip formed by holding a ball in a ball holding part, a chip provided with a resin ball receiving seat inside a metal or plastic chip, or a ball held by the chip is biased forward by a spring body. Can be applied.
Further, the ball having an outer diameter of 0.15 to 2.0 mm, preferably about 0.25 to 1.2 mm, such as cemented carbide, stainless steel, ruby, ceramic, resin, or rubber can be applied.

Further, as the marking pen tip, a porous member having a continuous ventilation hole selected from a range of generally 30 to 70% of a conventional general porosity, such as a resin processed body of a fiber, a fusion processed body of a heat-meltable fiber, and a felt body. Is used for practical purposes by processing one end into a shape corresponding to the purpose such as a bullet shape, a rectangular shape, a chisel shape, or the like.
When applying the marking pen tip, an ink occlusion body consisting of a fiber bundling body is built in the ink containing cylinder, the tip is connected directly or via a relay member, or the pen tip is pressed between the ink and the tip. It is preferable to interpose a valve body that is opened by the above and a comb groove-shaped ink flow rate adjusting member.

The ink contained in the ink container can be used regardless of reversible thermal irreversibility or irreversible thermal discoloration as long as it changes color by rubbing heating (friction heat) by the friction body. General-purpose inks such as water-based gel inks, low-viscosity water-based inks, low-viscosity oil-based inks, high-viscosity oil-based inks, and emulsion inks can be used depending on the type of chip. In addition, as a high temperature side color change point (namely, temperature which changes color by heating) of the thermochromic material (colorant) added to ink, it is preferable to set in the range of 50-95 degreeC, especially in frictional heat. Considering discoloration / erasability, 60 to 85 ° C. is more preferable.
Moreover, as a colorant applied to the ink, a general dye, pigment, metallic luster pigment, fluorescent pigment, titanium oxide, photochromic material, or the like may be used together with the thermochromic material.

  Further, if necessary, an ink follower made of a high-viscosity fluid that moves forward as the ink is consumed can be closely disposed at the rear end of the ink contained in the ink storage cylinder. Further, a solid follower can be used in combination with a high viscosity fluid.

  On the outer surface of the writing instrument refill container having the above-described structure, it is possible to display information related to the refill to be stored. In addition to the name and product number of the writing tool main body that can be stored, for example, the ink color (including the hue before and after the color change) By displaying the pen tip type, handwriting thickness, ball diameter, etc., the refill information in the storage state can be disclosed to the user. Moreover, usage methods such as a refill exchange method and a friction body usage method (handwriting discoloration method) can also be described.

Further, the writing instrument refill storage body is detachably attached to an empty writing instrument body that does not store the refill to form a writing instrument set, or a plurality of refill storage bodies and an empty writing instrument body (the number of refill colors and By making a writing instrument set in which the ball diameter, different shape or different mechanism writing instrument body, etc.) are displayed in combination, it is possible to sell with a clear configuration as a writing instrument. Therefore, it is particularly useful when the writing instrument body does not have a friction body. Examples of the writing instrument set include a refill housing and a writing instrument main body that are detachable, a small set that is combined with a shrink film, a cereal bag, a case, etc., and a sales set that is combined with a fixture.
In this case, the refills to be stored are not only those containing a thermochromic ink, but also those containing a thermochromic / non-thermochromic solid core or general-purpose non-color-changing ink, mechanical pen unit, eraser unit, touch pen By combining units and the like, it is possible to configure a writing instrument group with high merchantability. Further, the writing instrument body is not limited to one that contains one refill, and may be one that can contain a plurality of refills, and can be used regardless of a cap type, a retractable type, or the like. Further, a friction body alone or an eraser can be set.

<Writing instrument body>
The writing instrument body of the present invention is a writing instrument exterior in which the writing instrument refill accommodated in the above-mentioned writing instrument refill container is capable of accommodating one or more. A corresponding accommodating part is provided.
In the present invention, since the exterior of the writing instrument refill storage body (container with a cap) functions as a friction body for rubbing the handwriting, the exterior (refill) of a general-purpose writing instrument that does not include a conventionally commercially available friction body Can be used as it is as a writing instrument body.

Further, the writing instrument main body can be structured such that parts that become friction bodies of the writing instrument refill storage body can be mounted. In this case, since the frictional discoloration can be performed with the friction body on which the handwriting by the writing instrument is mounted, the convenience is particularly high.
Examples of the mounting method include a structure in which a locking hole is provided in the writing instrument body, and a part that becomes the friction body is fitted into the locking hole by a method such as fitting, engagement, screwing, and clamping, or a writing tool body. Examples include a structure in which a locking projection is provided, a structure in which the locking projection is covered with a recess of a part to be the friction body, and the fitting is mounted by a method such as fitting, engagement, and screwing, and a method such as adhesion. In the case where the locking hole is provided, it is possible to attach a decorative body so that the hole portion can be inserted and held by the earphone jack.
Examples of the mounting position of the friction body include the top part of the protective cap in the cap type writing instrument and the rear end part of the shaft cylinder, the top part of the shaft cylinder and the pressing operation part in the retractable writing instrument, and the vicinity of the pen tip entrance and exit. In the thing provided with, it can also be set as the structure which can be attached or detached to a clip. Specifically, in a writing instrument main body having a protective cap, a structure in which a friction body is attached to the top of the protective cap in a protruding state at the front end, or a writing instrument main body having a slide lever for pen tip protrusion / disengagement, the friction body The structure etc. which are attached in the front end protruding state can be applied.

<Writing instrument set>
The writing instrument body and the writing instrument refill container can be combined to form a writing instrument set. In this case, according to the number of writing instrument refills that can be accommodated by the writing instrument body, the writing instrument refill storage body can be accommodated together in a cereal bag or a case, or can be made into a single set by being integrated with a shrink film. it can. In the said form, a thermochromic writing instrument can be comprised by assembling the writing instrument refill of a storage body attached to a writing instrument main body, and since a storage body exterior part can be used as a friction body, it becomes a product which does not hesitate to use.

  Further, by combining a plurality of the writing instrument main body and the writing instrument refill container in a fixture form, it is possible to provide a highly customizable sales set in which the user can select the desired one and configure the original thermochromic writing instrument. . In this case, as a refill to be stored in the writing instrument refill container, a combination of a writing instrument refill containing a general-purpose non-color-changing ink, a mechanical pen unit, an eraser unit, a friction unit, a touch pen unit, etc., enhances the customization effect, A writing instrument group with higher merchantability can be configured. Further, in addition to a single friction body and eraser, a friction body and an eraser that can be mounted on the writing instrument body can be set.

Embodiments of the present invention will be described with reference to the following drawings.
FIG. 1 is a view showing a writing instrument refill storage body according to the first embodiment of the present invention, and FIG. 2 is a view showing a cap rearward state of FIG. 3 is a diagram showing a writing instrument refill container of the second embodiment, FIG. 4 is a diagram showing a writing instrument refill container of the third embodiment, and FIG. 5 is a diagram showing a writing instrument refill container of the fourth embodiment.
FIG. 6 shows a writing instrument refill container of the fifth embodiment and three types of writing instrument bodies (a) to (c) corresponding thereto, and FIG. 7 shows the writing instrument body (b) and writing instrument refill of FIG. It is the external view of the writing instrument set which consists of a storage body, and sectional explanatory drawing of the state used as the thermochromic writing instrument.
FIG. 8 is a front view explanatory diagram when a plurality of writing instrument refill storage bodies and a writing instrument body are used as a writing instrument set in a display form.

Example 1 (see FIGS. 1 and 2)
The writing instrument refill container 1 shown in FIG. 1 includes a writing instrument refill 4 including an ink storage cylinder 6 and a chip 5 in a container body 2 that opens and closes an opening 21 with a cap 3. It is stored in a state protruding from 21.

The writing instrument refill 4 is composed of a ball-point pen tip 5 in which a ball is rotatably held at the front end, and an ink containing cylinder 6 comprising a metal pipe provided with the ball-point pen tip 5 at the front end and opened at the rear end, The chip 5 and the ink containing cylinder 6 are connected by a resin connecting member 7 having transparency. Further, a chip holder 51 for reinforcing the chip 5 covers the lower part of the chip 5 and the upper part of the connecting member 7 to form a refill exterior.
The ball-point pen tip has a ball held by a ball holding portion in which the vicinity of the tip end of a metal pipe is pressed and deformed inward from the outer surface, and the ball is urged forward by a projectile to forward the edge portion. The ball is in close contact with the inner surface. The ball-point pen tip can also be directly attached and fixed to the front end opening of the ink containing cylinder 6 by press fitting or the like.
Further, inside the ink container 6 is incorporated a shear-thinning water-based ink (thermochromic ink) containing a reversible thermochromic colorant in the form of a microcapsule, and further, ink consumption at the rear end of the ink. The ink follower made of a high-viscosity fluid that moves forward is filled.

  In this embodiment, a ballpoint pen refill is employed as the writing instrument refill 4. However, a marking pen-shaped refill using a marking pen tip made of fiber or resin at the pen tip, or a mechanical pencil-shaped refill using a thermochromic solid core. A refill (mechanical pencil unit) can also be applied. Further, the fiber converging body and the comb-like ink flow rate adjusting member can be accommodated in the ink accommodating cylinder 6.

  The container body 2 for storing the writing instrument refill 4 is a container having an opening 21 for inserting (accommodating) and taking out the refill 4 at the upper end, and allowing the refill 4 to hold the lower end (bottom). In the embodiment, the container body 2 is formed by press-fitting a holder member 22 having a through hole into the upper end of a transparent polypropylene pipe and press-fitting a tail plug 25 having substantially the same shape as the holder member 22 into the lower end. Is formed. The outer surface of the polypropylene pipe is affixed with a sticker on the ball diameter, ink color, product number, price, and applicable writing instrument body of the refill 4 to be stored. Is provided.

The holder member 22 has a holding portion 23 made of an annular rib on the inner surface of the through hole, and a cap fitting portion 24 made of an annular rib on the outer surface of the upward projecting portion. Both are integrally molded as one SEBS resin member.
The height of the holding portion 23 from the inner wall surface is set to a dimension that allows the holding portion 23 to be clamped at opposite locations in accordance with the outer diameter of the ink storage cylinder 6 to be stored. In the present embodiment, the ribs are formed in a ring shape at the opening (inner wall end). However, the present invention is not limited to this, and a plurality of ribs may be formed in the axial direction or a wide ring shape. It can also be formed by a plurality of protrusions.
The cap fitting portion 24 is a portion to be fitted with the inner surface of the opening of the cap 3, and the height from the outer surface of the holder member 22 is set according to the inner diameter of the cap 3. In addition, it is not restricted to the said shape, A some protrusion can also be formed in equal intervals.

Similarly, the tail plug 25 is formed with an annular rib for holding the ink containing cylinder 6 at the upper end inside the through hole as a second holding portion (second holding portion 26), and a lower protruding portion. An SEBS resin molded body in which an annular rib for inserting the cap 3 backward is integrally formed on the outer surface as a cap fitting portion 24.
The height from the inner wall surface of the second holding portion 26 is set to a dimension that allows the second holding portion 26 to be clamped at opposite locations in accordance with the outer diameter of the ink storage cylinder 6 to be stored. In this embodiment, the rib is formed in a ring shape at the upper end (end portion of the inner wall). However, the present invention is not limited to this, and a plurality of ribs may be formed in the axial direction or a wide ring shape. It can also be formed by a plurality of protrusions.
Since the refill 4 is held at two locations on the opening 21 side and the tail plug 25 side, the refill 4 in the stored state does not wobble even when a radial load is applied to the tip 5. Therefore, it becomes possible to write directly with the writing instrument refill container 1 with the cap 3 removed, and it can be used as a simple writing instrument.
Moreover, since the cap fitting part 24 is formed in the tail plug 25, and the cap 3 can be fitted to the tail plug side when the cap 3 is removed, the cap loss at the time of pulling out the refill can be suppressed. Furthermore, because writing and rubbing are possible in the reverse position, the full length of the writing instrument refill container 1 is increased when writing or rubbing, even when short refills are stored or when a small cap (friction body) is stored. can do.

When the writing instrument refill 4 is stored in the container body 2 from the rear end side (that is, the ink storage cylinder 6 side), the rear end portion of the ink storage cylinder 6 is held by the second holding portion 26 of the tail plug 25. A part of the upper side of the ink containing cylinder 6 protrudes outward (upward) from the container body opening 21 together with the chip 5. Therefore, the refill 4 can be directly clamped when the writing instrument refill 4 is pulled out from the container body 2, and the refill 4 can be reliably pulled out using both hands by holding the outer surface of the container body 2 with one hand. . The refill 4 to be stored can be inserted from the chip side and stored in a state in which the chip faces downward.
In the container body 2, the holder member 22 and the tail plug 25 function as a friction body, but the outer edge portion is chamfered to be a friction portion 27, so that a sense of stability is obtained when the handwriting (paper surface) is rubbed. It has a structure that is easy to friction. When chamfering is not performed, the fine portions are excellent in scratching properties.

The cap 3 protects the internal refill 4 together with the container body 2 by covering the refill 4 accommodated in the container body 2 in a protruding state from the chip 5 side and sealing the opening 21. is there. In addition, it functions as a color display unit by coloring the same hue (either before or after color change or before or after discoloration) as the ink stored in the ink storage cylinder 6.
The cap 3 of the present embodiment is a substantially cylindrical molded member made of SEBS resin, which protects the chip 5 at the pore portion in front of the through hole, and the inner wall of the rear large hole is fitted with the cap fitting portion 24. It has a structure.
The cap 3 as a whole functions as a friction body. However, the upper edge is chamfered to form a friction portion 31, so that a stable friction is easily generated when the handwriting (paper surface) is rubbed. When chamfering is not performed, the fine portions are excellent in scratching properties.

With the above-described configuration, the writing instrument refill container 1 during refill storage can reliably protect the writing instrument refill 4 from dropping, impact during transportation, and the like. Further, when the refill is used, when the writing instrument refill 4 is taken out from the container body 2 after the cap 3 is removed, the protruding tip-side ink containing cylinder 6 can be directly held and pulled out, so that the opening 21 It becomes easy to pull out vertically without applying a load due to the contact angle of the refill 4. Therefore, it is possible to reliably suppress the ink containing cylinder 6 and the tip 5 from being bent or detached when the refill is taken out.
In addition, by fitting the removed cap 3 into the cap fitting portion 24 formed on the tail plug 25, it is possible to suppress the loss of the cap when the refill is pulled out, and writing or rubbing (rubbing) in the rearward insertion state is possible. Therefore, writing and rubbing can be performed in a state in which the operability of the writing instrument refill storage body 1 having a long overall length is high.

  Furthermore, since the cap 3 and the container main body 2 (the holder member 22 and the tail plug 25) act as the friction portions 27 and 31, an empty case (the container main body 2 and the container main body 2 and the container main body 2 after the writing instrument refill 4 is accommodated in the writing instrument main body). It is possible to use the cap 3) as a friction body for a thermochromic writing instrument. Therefore, what was conventionally discarded can be reused, resulting in excellent economic efficiency. The holder member 22 and the tail plug 25 are detachable so that they can be used alone as a friction body. In that case, it can also be attached to the writing instrument body.

Example 2 (see FIG. 3)
In the writing instrument refill container 1 of the present embodiment shown in FIG. 3, a colored polypropylene resin pipe having transparency is used as an ink container 6 and a ball is held in a ball holding part formed by cutting a metal material with a drill or the like. A writing instrument refill 4 is housed in which a chip 5 which is held and biased forward by a spring (not shown) is connected by a resin connecting member 7. A thermochromic ink 61 and a liquid stopper 62 are housed in the ink container 6 in contact with each other.

The container body 2 that stores the refill 4 in a pen tip protruding state has a bottom portion sealed by press-fitting a tail plug 25 into the lower end of a colored opaque polypropylene pipe having stepped portions at both upper and lower ends. The container body 2 is formed in a structure that allows the cap to be fitted to the upper end opening 21 and the rear end.
The tail plug 25 is a colored polypropylene resin member provided with a locking projection 28 on the upper side, and is fitted at a position where it is locked to the lower step of the pipe. The locking projection 28 is gently fitted to the rear end of the refill 4 so that it does not fall off when the pen tip is turned downward with the cap 3 removed, and is kept in a state where it can be easily taken out when the refill 4 is taken out. doing.

The cap 3 covers the writing instrument refill 4 housed in the container body 2 in a protruding state from the tip 5 side, and fits the inside of the opening 21 and the outer surface of the rear part, and the clip 32 is integrally formed on the outer surface. Is provided. The cap 3 is formed by injection molding by adding a colorant to an elastic material in which a polypropylene resin and a styrene thermoplastic elastomer are mixed at a ratio of 1: 3, and the entire cap 3 including the clip 32 is used as a friction body. It functions. In addition, by chamfering the upper edge portion to form the friction portion 31, it has a structure in which stable friction is easily generated when the handwriting (paper surface) is rubbed.
Further, the clip 32 has a function of locking to clothes, stationery, and the like and a function of preventing rolling, and also has a color display function by coloring the ink color.
Furthermore, since the back insertion to the rear end of the container body 2 is possible, it is possible to suppress the cap loss when the refill is pulled out. At that time, since writing and rubbing can be performed in the back-inserted state, even when a short refill is stored, the entire length can be lengthened to provide a simple writing instrument and a friction tool with high usability.

  Further, as the friction body, the cap 3 can be used alone, or a rod-shaped friction body can be formed by fitting with the container main body 2, so that it becomes easy to grip, and the friction portion 31 is caused by handwriting rubbing. A color change (decoloring) effect is more easily exhibited. For this reason, the empty case after the refill 4 is accommodated in the writing instrument body can be used as a friction body for the thermochromic writing instrument, and conventionally discarded members can be reused. In addition, the clip 32 is excellent in portability that allows pocket insertion alongside the writing instrument.

Example 3 (see FIG. 4)
In the writing instrument refill housing 1 of the present embodiment shown in FIG. 4, the writing instrument refill 4 of the second embodiment is used in which a stopper 8 is attached to the rear end of the ink containing cylinder 6.

The container body 2 for storing the writing instrument refill 4 in the container opening 21 in a pen-tip immersive state seals the bottom by press fitting the tail plug 25 to the lower end of the transparent polypropylene pipe, and opens the upper end. It is formed with a structure in which the convex portion 33 behind the cap can be inserted into the portion 21 and fitted.
The tail plug 25 is a substantially cylindrical member made of colored SEBS resin that holds the plug body 8 by fitting the pipe plug with the inner surface of the pipe with the upper portion being cylindrical. By chamfering the outer edge of the exposed portion to form the friction portion 27, a stable friction is easily formed when the handwriting (paper surface) is rubbed.
In addition, a film on which information about the ball diameter, ink color, product number, price, and applicable writing instrument body of the writing instrument refill 4 to be stored is transferred on the outer surface of the polypropylene pipe is transferred to the user. Is provided.

The cap 3 includes a convex curved protrusion (convex portion 33) having an annular rib on the outer surface on the lower side, and the annular rib is formed on the inner surface of the opening portion 21 by inserting the convex portion 33 into the opening portion 21 of the container body 2. Mate with. At that time, the tip end of the writing instrument refill 4 in the housed state is protected by the lower end portion coming into contact with the tip of the ballpoint pen tip (pen tip 5). Accordingly, inadvertent ink leakage from the pen tip can be suppressed without using a hot melt protective film, and the taken-out refill can be used immediately without having to remove the protective film. Moreover, since the cap 3 and the tail plug 25 have elasticity, it is a structure which can absorb the dimensional error of each part in a refill accommodation state.
In addition, although the convex part 33 in this embodiment has a structure which contacts the front-end | tip of the nib 5 at the time of opening part sealing, the refill 4 can move with the cap 3 at the time of extraction (at the time of cap opening). As described above, a structure in which the pen tip 5 is sandwiched may be used.
The cap 3 functions as a friction body as a whole, but the upper edge is chamfered to form a friction portion 31 so that a stable friction is easily generated when the handwriting (paper surface) is rubbed. It has become. When chamfering is not performed, the fine portions are excellent in scratching properties.

  With the above-described configuration, the writing instrument refill container 1 during refill storage can reliably protect the writing instrument refill 4 from dropping, impact during transportation, and the like. In particular, since the impact from the vertical direction can be elastically absorbed, it is more useful as a protective material against a drop impact.

Further, as the friction body, since the cap 3 and the container body 2 (tail plug 25) act as the friction portions 27 and 31, they can be used independently, and the cap 3 and the container body 2 can be brought into a fitted state. Since the rod-like friction body can be formed, it becomes easy to grip, and the discoloration (decoloring) effect due to the handwriting rubbing at the friction portions 27 and 31 is more easily exhibited. Therefore, the empty case (comprising the container body 2 and the cap 3) after the writing instrument refill 4 is accommodated in the writing instrument body can be used as a friction body for the thermochromic writing instrument. For this reason, parts that have been discarded can be reused, and the cost is excellent.
Further, when the cap 3 is used alone as a friction body, the upper outer portion and the lower convex portion 33 act as the friction portion 31, so that a friction portion (a chamfered portion and a curved portion) having different areas in contact with the paper surface is obtained. Therefore, it can be used conveniently according to the size of the handwriting to be rubbed.

Example 1
Writing instrument set by combining the writing instrument refill container 1 of Example 3 and an empty writing instrument main body (a rear end knocking retractable type that can divide the shaft cylinder) that can accommodate the internal writing instrument refill 4 by thermal shrinkage of the shrink film. It was.
In the writing instrument set, the user can use it as a thermochromic writing instrument by newly storing the writing instrument refill 4 in the refill housing 1 attached to the empty writing instrument body. At that time, since the case (that is, the container main body 2 and the cap 3) of the refill container 1 can be used as a separate body as a friction body, friction (color change) is easily performed on the handwriting by the thermochromic writing instrument. be able to. Therefore, even when a refill containing a thermochromic ink is accommodated in a general-purpose writing instrument body that does not have a friction body, the color change or decoloration of the handwriting by the friction body can be ensured.
Further, since the usage method and product information can be described on the shrink film discarded when the writing instrument is used, the product information can be provided to the user without impairing the decorative property of the writing instrument or the refill container (case).
The empty writing instrument body to be combined is not limited to the above-mentioned rear end knock type, and if the writing instrument refill 4 in the refill container 1 can be accommodated, a cap type having a cap that covers the pen tip, Other in-and-out types having an in-and-out mechanism such as a knock type, a rotary type, and a slide type may be used. Further, in addition to the one that stores one writing instrument refill 4, it may be a double-headed form in which two pens are accommodated and provided with pen nibs 5 at both ends, or a dual writing instrument that accommodates a plurality of writing pens. In this case, as another refill, a non-thermochromic ink or a mechanical pen unit can be used. Furthermore, a writing instrument body provided with a friction body can also be used.

Example 4 (see FIG. 5)
In the writing instrument refill container 1 of the present embodiment shown in FIG. 5, three writing instrument refills 4 (each having a different ink color) of the third embodiment are stored.
The container body 2 for storing the refills 4 in a pen tip protruding state is a substantially elliptic cylindrical transparent polypropylene molding having an opening 21 on the upper side, and has a bottom portion that is large enough to contain three refills side by side. An annular rib (cap fitting portion 24) for locking the cap 3 is formed on the outer surface in the vicinity of the opening 21.

The cap 3 is a substantially cup-shaped friction body that covers the three refills 4 stored in the container body 2 in a protruding state from the tip 5 side and fits with the cap fitting portion 24 on the outer surface of the opening 21. It is formed by injection molding an elastic material in which a polypropylene resin and a styrene thermoplastic elastomer are mixed at a ratio of 1: 3. Further, a hole 34 is formed so as to be able to be suspended and displayed at a substantially central portion on the upper side (thick portion).
When the cap is fitted, the tip of the tip of the writing instrument refill 4 in the stored state is protected by the inner upper surface being in contact with each pen tip 5.
In FIG. 5, the three writing instrument refills 4 are stored in a parallel state. However, the container body 2 can be formed into a columnar or triangular prism shape by using a stacking type in which one is stacked between two refills. Space can be saved, and the appearance of the display can be improved.

  Further, as the friction body, the cap 3 can be used alone, or by being fitted to the container body 2, a columnar friction body can be formed. Heat discoloration (heating decoloring) effect due to is more easily expressed. Therefore, the empty case after the refill 4 is accommodated in the writing instrument main body can be used as a friction body for the thermochromic writing instrument, and a conventionally discarded member can be reused.

Example 2
A plurality of writing instrument refill storage bodies 1 having the configuration of the third embodiment (using a plurality of colors of ink 61) and a plurality of writing instrument refill storage bodies 1 having the configuration of the fourth embodiment (containing a refill 4 of a plurality of color inks). A plurality of writing instrument refill storage bodies 1 having the structure of Example 3 that stores three refills 4 of the same color ink as that to be stored) and a writing instrument refill 4 containing a non-thermochromic ink. And a plurality of empty writing instrument main bodies (rear end knock type and cap type that can divide the shaft tube) that can accommodate one writing instrument refill 4 inside the storage body. And a writing instrument body group consisting of a plurality of empty writing instrument bodies (sliding lever type that can divide the shaft tube) that can accommodate three writing instrument refills 4 inside the storage body are displayed on a display fixture. Was a writing instrument set in. A single friction body can be incorporated as a set.
In the writing instrument set, an original customized writing instrument can be produced by selecting a desired writing instrument body and writing instrument refill container 1 from a fixture and incorporating the writing instrument refill 4 into the writing instrument body. At this time, even when the writing instrument body is not provided with a friction body that rubs the handwriting, the case (the container body 2 and the cap 3) after the writing instrument refill 4 is extracted can be used as the friction body. Thus, it is possible to easily and reliably rub the desired portion of the handwriting, resulting in a writing instrument set excellent in economic efficiency, merchantability, and convenience.

Example 5 (see FIG. 6)
In the writing instrument refill storage body 1 produced in Example 3, the writing instrument refill storage body 1 was obtained by storing the writing instrument refill 4 with the stopper 8 attached to the rear end of the ink storage cylinder 6 removed. In addition, the convex part 33 and the pen point (ball-point pen tip) 5 are in a substantially contact state by adjusting the dimension of the tail plug 25.
The cap 3 of the writing instrument refill container 1 having the convex portion 33 as the rear portion is a small diameter portion whose rear portion is inserted and locked into the opening of the container body, and the front portion is a large diameter portion, both of which are friction portions. Become. The large-diameter portion can have an arbitrary image shape, and the decoration effect can be enhanced.
In the writing instrument refill container 1, a plurality of inks of different colors are formed in each ink container 6, and the cap 3 is colored in a hue corresponding to each ink color. The container body 2 is composed of the same hue and material.

Next, the writing instrument main bodies 9 (a) to 9 (c) that can accommodate the writing instrument refill 4 of the writing instrument refill storage body 1 will be described with reference to FIG.
The writing instrument body 9 (a) is a cap-type writing instrument exterior.
The shaft tube 92 in which one writing instrument refill 4 is accommodated is a polycarbonate resin molded product that is screwed to the front shaft 92b and the rear shaft 92a so as to be split in the front-rear direction. The front shaft 92b is provided with a tip opening 92d from which the pen tip 5 protrudes, and a protective cap 93 that covers the opening side of the front shaft 92b is fitted so that the pen tip 5 is protected. ing.

The protective cap 93 is a polycarbonate resin molded product having a locking hole 91 serving as a friction body mounting portion at the top (front side), and has a protrusion for preventing rolling on the outer surface. The protective cap 93 can be provided with a clip 94a.
Two ring beads are formed inside the locking hole 91 so that the convex portion 33 of the cap 3 can be inserted and fitted. Since the front end (large diameter portion) of the friction body protrudes in the fitted state, the cap is removed when the handwriting on the paper is rubbed using the friction portion 31 of the cap (friction body) 3 in the fitted state. 3 can be rubbed without being disengaged from the locking hole 91, and the handwriting can be easily and reliably discolored by frictional heat. The method of attaching the cap 3 to the locking hole 91 may be engagement, screwing, clamping, etc., and can be shaped according to the attachment method.
Further, when the friction body 3 is attached to the protective cap 93, the pen tip 5 may be in contact with the convex portion 33.

  Note that, as the friction body mounting portion, a locking projection can be formed instead of the locking hole 91. In that case, since the cap 3 having the shape shown in FIG. 1 or 2 can be covered and attached to the locking convex portion, the friction body attachment portion is provided in a shape corresponding to the writing instrument refill storage body 1 to be applied.

The writing instrument body 9 (b) is a retractable writing instrument exterior.
The shaft tube 92 in which one writing instrument refill 4 is accommodated is a polycarbonate resin molded product that is screwed into the front shaft 92b and the rear shaft 92a so as to be split in the front-rear direction. A tip opening 92d is provided in which the sag appears. Further, the rear shaft 92a is provided with a retracting mechanism, and the pen tip 5 is retracted by the front-rear operation of the operation portion (slide lever) 94 protruding in the radial direction from the side surface. The operation unit 94 can be provided with a clip 94a.

A locking hole 91 serving as a friction body mounting portion is provided at the top of the shaft tube 92 (the rear end of the rear shaft 92a). Two ring beads are formed inside the locking hole 91 so that the convex portion 33 of the cap 3 can be inserted and fitted. Since the front end (large diameter portion) of the friction body protrudes in the fitted state, the cap (friction body) 3 when the handwriting on the paper is rubbed using the friction portion 31 of the cap (friction body) 3. Can be rubbed without disengaging from the locking hole 91, and the handwriting can be easily and reliably discolored by frictional heat. The method of attaching the cap (friction body) 3 to the locking hole 91 may be engagement, screwing, clamping, etc., and can be shaped according to the attachment method.
Moreover, when attaching the friction body 3 to the top part of the axial cylinder 92, it is good also as a structure which absorbs the impact at the time of a return by making it the structure where the rear end of the operation part 94 contacts the convex part 33.
Note that, as the friction body mounting portion, a locking projection can be formed instead of the locking hole 91.

The writing instrument body 9 (c) is a double-type writing instrument exterior in which three writing instrument refills 4 are accommodated.
The shaft tube 92 is a polycarbonate resin molded product that is screwed into the front shaft 92b and the rear shaft 92a so as to be split in the front-rear direction, and the front shaft 92b has a grip 92c formed by two-color molding with an elastomer. And a tip opening 92d in which the pen tip 5 appears and disappears. Further, the rear shaft 92a is provided with a retracting mechanism, and three operation portions (slide levers) 94 project in the radial direction from the side surface (equally arranged with respect to the shaft center). The operation portion (slide lever) 94 is configured such that the pen tip 5 of the writing instrument refill 4 connected to each slide lever is projected and retracted by the front-rear operation. In addition, although the clip 94a is provided in one operation part 94, it can also be made into the same shape as other two pieces, without providing the clip 94a.

A locking hole 91 serving as a friction body mounting portion is provided at the top of the shaft tube 92 (the rear end of the rear shaft 92a). Two ring beads are formed inside the locking hole 91 so that the convex portion 33 of the cap 3 can be inserted and fitted. Since the front end (large diameter portion) of the friction body protrudes in the fitted state, the cap (friction body) 3 when the handwriting on the paper is rubbed using the friction portion 31 of the cap (friction body) 3. Can be rubbed without disengaging from the locking hole 91, and the handwriting can be easily and reliably discolored by frictional heat. The method of attaching the cap (friction body) 3 to the locking hole 91 may be engagement, screwing, clamping, etc., and can be shaped according to the attachment method.
Moreover, when attaching the friction body 3 to the top part of the axial cylinder 92, it is good also as a structure which absorbs the impact at the time of return by making it the structure where the rear end of each operation part 94 contacts the convex part 33.
Note that, as the friction body mounting portion, a locking projection can be formed instead of the locking hole 91.

  The writing instrument body 9 (c) may be at least one empty, and may contain, for example, one or two writing instrument refills that contain ink that does not change color. Alternatively, the mechanical pencil unit may be attached to the clip 94a having a different shape from the other two pieces, and an eraser may be attached to the locking hole 91. In this case, the handwriting drawn after accommodating two refills 4 containing thermochromic ink can be rubbed using the separate container body 2 and cap 3 as friction bodies.

  In the thermochromic writing instrument 10 in which the writing instrument refill 4 of the writing instrument refill container 1 is accommodated in the writing instrument main body 9 (a) to (c) and the cap 3 is mounted as a friction body, the attached cap is used to rub the handwriting. As a matter of course, the container body 2 (tail plug 25), which is a separate body, can be rubbed.

Example 6 (see FIG. 7)
The writing instrument refill storage body 1 and the writing instrument main body 9 (b) in Example 5 were accommodated in the Celise bag 12 to obtain a writing instrument set 11 (right figure). In the writing instrument set 11, since a through hole is formed in the header portion of the Celise bag 12, a hanging display is also possible in addition to the placement display.

  The writing instrument refill 4 is taken out from the writing instrument refill storage body 1 of the writing instrument set 11 and accommodated in the shaft cylinder 92 of the writing instrument main body 9 (b), and the cap 3 is used as a friction body in the locking hole 91 at the rear end of the shaft cylinder 92. The assembled state (thermochromic writing instrument 10) will be described with reference to FIG. 7 (left figure).

The thermochromic writing instrument 10 is a retractable writing instrument that moves the rotating cam by a slide pressing operation of the operation unit 94 (sliding body 94a) and causes the pen tip 5 of one writing instrument refill 4 to be accommodated to appear and disappear.
Specifically, the back of the refill 4 is connected to the refill holding portion 95 disposed in front of the sliding body 94a in the shaft tube 9, so that the writing instrument refill 4 is movable in the front-rear direction. Is housed in.

  The shaft tube 92 includes a front shaft 92b that is a cylindrical body in which a tip opening 92d that can project the pen tip (ballpoint pen tip) 5 of the writing instrument refill 4 is provided in the axial direction, and a rear end portion of the front shaft 92b. A cylindrical rear shaft 92a that is screwed together with a retracting mechanism. The rear shaft 92a is composed of two members that can be divided in the front-rear direction for assembling the sliding body 94a. Further, an axial groove for guiding the rotating cam is provided on the inner surface over the inner periphery. A plurality are formed at intervals (not shown). An elongated window hole extending in the front-rear direction is provided in the rear side wall of the rear shaft 92a (that is, a splittable portion) in the radial direction, and the operation portion of the sliding body 94a projects from the window hole to the outside. 94 is disposed.

  The sliding body 94a includes an operation portion 94 that protrudes to the outside from the window hole, and the refill holding portion 95 (rotating cam) is moved forward and guided to rotate by the sliding (pressing) operation of the operation portion 94. It is a resin molding in which a plurality of serrated convex portions are formed at the tip. Therefore, by moving the operation unit 94 forward, the pen tip 5 of the refill 4 protrudes from the tip opening 92d.

The refill holding part 95 disposed in front of the sliding body 94a is a connecting member into which the refill 4 is inserted and functions as a rotating cam that constitutes a retracting mechanism.
The refill holding portion 95 has a stepped portion that can be engaged with the sawtooth convex portion at the front end of the sliding body at the rear end, and a substantially cylindrical shape in which an insertion hole into which the refill 4 is press-fitted and fitted is formed at a substantially front center. It is a shaped resin molding. Further, a plurality of ribs constituting the rotating cam mechanism are formed on the outer surface of the cylinder at equal intervals over the outer periphery (not shown).
Further, a step portion is formed on the outer edge of the front end over the outer periphery, and the rear end of the resilient member 97 made of a compression coil spring is locked by the step portion. The front end of the elastic member 97 is locked by a resin locking member 96 fixed in the shaft tube. Therefore, the refill holding part 95 is urged rearward by the elastic member 96, and in addition, a rotating cam mechanism is constituted by the outer periphery of the refill holding part 95 and the inner surface of the shaft tube, so that a writing instrument structure that can be projected and retracted is obtained. ing.

  A locking hole 91 penetrating in the axial direction is provided as a friction body mounting portion at the top of the rear shaft 92a (the rear end of the splittable portion). Two ring beads are formed on the inner wall surface in the vicinity of the opening of the locking hole 91, and the convex portion 33 of the cap 3 is inserted and fitted therein. When the container body 2 and the cap 3 of the writing instrument refill container 1 are screwed together, a groove portion having a shape matching the spiral groove on the outer surface of the convex portion 33 is formed on the inner wall surface. it can. In this case, the structure is such that the cap 3 is less likely to come off when the handwriting is abraded at the large diameter portion of the friction body.

Since the front end of the friction body (the large diameter portion on the 31 side) protrudes in the fitted state, the friction body 3 comes off the locking hole 91 when the handwriting on the paper surface is scraped using the friction portion 31. The handwriting can be easily and reliably discolored by frictional heat.
In addition, the friction body 3 has a structure in which the convex portion 33 is in contact with the rear end of the sliding body 94a to absorb an impact at the time of return.

When the thermochromic writing instrument 10 having the above structure is written, the refill holding portion 95, which also serves as a rotating cam, is moved forward and held rotationally by sliding the operation portion 94 of the sliding body 94a forward. The pen tip 5 of the writing instrument refill 4 fitted in front of the refill holding portion 95 is held in a state where it protrudes from the tip opening portion 92d and becomes ready for writing.
The handwriting by the thermochromic ink 61 formed on the paper surface in the state can be frictionally discolored by the cap (friction body) 3 attached. When discoloring (erasing), it is possible to easily and reliably generate frictional heat by changing the thermochromic writing instrument 10 upside down and writing, bringing the friction body 3 side into contact with the paper surface, and rubbing friction. it can.
After writing, the refill holding part 95 is urged backward by the elastic member 97 by pressing the operation part 94 forward and sliding backward, and the refill 4 fitted in front of the refill holding part 95 The pen tip 5 is immersed from the tip opening 92d.

  In addition, as the above-mentioned retractable writing instrument body 9, a commercially available one such as a general-purpose slide lever type that does not have the locking hole 91 (part to which the friction body is attached) or a general-purpose rear end knock type structure is used. You can also. In this case, a separate case from which the writing instrument refill 4 is taken out (the tail plug 25 and the cap 3 portion of the container body 2) is applied as a friction body.

Example 7 (see FIG. 8)
About the writing instrument set of the display form using the writing instrument refill storage body 1 of the said Example 5, the writing instrument main body 9, and the writing instrument refill storage body produced in Example 4 (the form in which the refill 4 is not provided with the plug body 8). A description will be given with reference to FIG.

The fixture 13 used in the writing instrument set 11 is a two-stage fixture provided with a mounting display case of the same shape made of a transparent resin on the rear upper stage, and on the back of each display case, the writing instrument body 9 is in a display state. There is a decorative plate that extends to a higher position. The decorative plate and the display case can be described with information such as product names, manufacturer names, images such as illustrations and photographs, usage methods, and various decorations.
Each display case has three types of writing instrument bodies 9 (a), 9 (b), 9 (c) and two types of writing instrument refill storage bodies 1 (one or three storages) in the longitudinal direction. There are several lines in each.

  As the plurality of writing instrument refill storage bodies 1, one containing a plurality of thermochromic inks, a plurality of pen tip ball diameters, and a writing instrument refill 4 containing a non-thermochromic ink were housed. Items are displayed as a group of writing instrument refills.

  A plurality of the writing instrument bodies 9 having the same shape and different hues are displayed as a writing instrument body group. Although not shown, a writing instrument having a general-purpose structure that does not have the locking hole 92 can be displayed together as the writing instrument body 9. Further, the friction body alone can be incorporated as a display set.

In the writing instrument set 11, the user selects a desired writing instrument body 9 and the writing instrument refill storage body 1 from the fixture 13, the writing instrument refill 4 is assembled into the shaft tube of the writing instrument body 9, and the cap 3 is attached to the locking hole 91. By doing so, an original customized writing instrument can be produced. The handwriting by the thermochromic ink 61 formed on the paper surface with the writing instrument is highly convenient because it can be frictionally discolored by the cap (friction body) 3 attached.
In addition, since a multiple-type writing instrument requires a plurality of refills, a desired hue can be selected from the caps 3 of a plurality of colors, so that the decorativeness is high.

Further, even if the writing instrument body 9 does not have the locking hole 91, the case (the container body 2 and the cap 3) after the writing instrument refill 4 is extracted is used as a separate friction body 3 and the handwriting is used. Can rub.
Therefore, it is not necessary to discard the case, and it is possible to easily and reliably rub the desired portion of the handwriting. Therefore, it becomes the writing instrument set 11 excellent in economy, merchantability, and convenience.

DESCRIPTION OF SYMBOLS 1 Writing instrument refill storage body 2 Container main body 21 Opening part 22 Holder member 23 Holding part 24 Cap fitting part 25 Tail plug 26 Second holding part 27 Friction part 28 Locking protrusion 3 Cap (friction body)
31 Friction part 32 Clip 33 Convex part 34 Hole part 4 Writing instrument refill 5 Tip (ball-point pen tip)
51 Tip holder 6 Ink container 61 Thermochromic ink 62 Liquid stopper 7 Connection member 8 Plug body 9 Writing instrument body 91 Locking hole (friction body mounting part)
92 Shaft 92a Rear shaft 92b Front shaft 92c Grip 92d Tip opening 93 Protective cap 94 Operation part (slide lever)
94a Clip 94b Sliding body 95 Refill holding part 96 Locking member 97 Elastic member (coil spring)
10 Thermochromic writing instrument 11 Writing instrument set 12 Celise bag 13 Furniture

Claims (11)

  A refill container that houses one or more writing instrument refills in a container body that opens and closes an opening with a cap, wherein the writing instrument refill contains thermochromic ink, and at least one of the cap and the container body is A writing instrument refill container that is a friction body.   The writing instrument refill container according to claim 1, further comprising a clip.   The writing instrument refill container according to claim 1 or 2, wherein a front end of the cap or a rear end of the container body serves as a friction portion.   The writing instrument refill container according to any one of claims 1 to 3, wherein a rear portion of the cap is inserted into an opening of the container body to fit the cap, and the rear portion of the cap serves as a friction portion.   The writing instrument refill container according to any one of claims 1 to 4, wherein a rear portion of the cap is a small-diameter portion inserted and locked into an opening of the container body, and a front portion is a large-diameter portion serving as a friction portion.   A writing instrument body in which the writing instrument refill constituting the writing instrument refill container according to any one of claims 1 to 5 is accommodated.   The writing instrument main body according to claim 6, wherein the writing instrument main body does not include a friction body, and at least one of the cap of the writing instrument refill storage body and the container main body can be attached as the friction body.   The writing instrument main body has a locking hole, and the friction body is attached to the locking hole by any one of fitting, engaging, screwing, and clamping methods. The writing instrument body described.   The writing instrument main body according to any one of claims 6 to 8, wherein the writing instrument main body has a protective cap, and a friction body is attached to the top of the protective cap in a protruding state from the front end.   The writing instrument body according to any one of claims 6 to 8, wherein the writing instrument body has a slide lever for pen tip protrusion, and a friction body is attached to the top of the shaft cylinder in a protruding state at the front end.   A writing instrument set comprising the writing instrument refill container according to any one of claims 1 to 5 and the writing instrument body according to any one of claims 6 to 10.

Images