JP6506005B2 - Composite writing instrument and package of writing core - Google Patents

Description

  The present invention relates to a composite writing instrument and a package of a writing core.

  Conventionally, there is known a compound writing tool of a type in which a plurality of writing cores are accommodated in a barrel of a writing instrument and a writing unit of a selected single writing core is protruded from the tip of the barrel. In general, such composite writing instruments have the same color as the ink color of the corresponding writing core displayed on the operation portion so that the user can identify the type of the writing core or the ink color used by the user. The user can visually recognize the display and slide the operation unit on which the type of the writing core, the ink color or the like desired to be used is displayed to the front of the writing instrument to use it as the writing state.

  Furthermore, there are known a writing tool having a different shape for the operation part for each writing core (Patent Document 1), a writing tool having a seal film having a different color in the writing part at the tip of each writing core, etc. is there.

JP, 2012-179715, A JP 2014-46524 A

  When using the conventional compound writing instrument in which the same color as the ink color of the writing core corresponding to the operation portion is displayed, as described above, the user writing the character with the writing instrument switches to another writing core The user needs to move his or her eyes from the character to the operation unit, find the operation unit on which the type of the writing core or the ink color is displayed, and slide it forward. Alternatively, there is also a method of sliding an arbitrary operation unit one after another until a target writing core is achieved, writing a trial state as a writing state, and switching to the target writing core. It is clear that these conventionally performed methods are inefficient and cause time and operational waste.

  Then, an object of this invention is to provide the compound writing instrument which can select the target writing core, without visually recognizing an operation part.

According to one aspect of the present invention , there is provided a compound writing instrument having a plurality of writing cores, the operating unit having a plurality of operating units for operating each of the writing cores, and the operating unit being operated. In the compound writing instrument configured to be able to switch one writing core to be written from the non-writing state to the writing state and to switch the other writing core in the writing state to the non-writing state, the writing part of the writing core A compound writing instrument is provided, characterized in that the shape of the or the gloss of the outer surface of the writing unit differs from one another.

According to another aspect of the present invention, there is provided a compound writing instrument characterized in that the glosses of the outer surfaces of the operating portions are different from each other.

According to another aspect of the present invention, there is provided a compound writing instrument further comprising grips having a number of sections equal to the number of writing cores, wherein the gloss of the outer surface of each of the sections of grips is different from one another. Be done.

According to another aspect of the present invention, there is provided a composite writing instrument characterized in that each of the writing cores comprises a seal coating for covering the writing part, and the shape of the seal coating or the gloss of the outer surface mutually differ. .

According to another aspect of the present invention, there is provided a composite writing instrument characterized in that a barrel portion corresponding to a writing unit in a non-writing state is visible.

According to another aspect of the present invention, there is provided a package for containing a writing core of a composite writing instrument, wherein the package is characterized in that at least a part of the package is visible.

According to each aspect of the present invention, it is possible to provide a compound writing instrument capable of selecting a target writing core without visually recognizing the operation unit.

It is a front view in the non-writing state of the compound writing instrument concerning this invention. It is sectional drawing of the longitudinal direction in the non-writing state of the compound writing instrument of FIG. It is the schematic of the cross section of line XX of FIG. It is a fragmentary perspective view of the writing part which attached the seal | sticker coating film to the ball | bowl in the non-writing state of the composite writing instrument of FIG. FIG. 5 is a partial perspective view of a writing unit provided with a seal coating different from the seal coating of FIG. 4; It is a front view which shows the several writing core of the compound writing instrument which concerns on embodiment shown by FIG. 5, and the writing core cap corresponding to each. It is a front view of the package body which accommodated the several writing core of the state which attached | subjected the corresponding writing core cap shown by FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Corresponding components are denoted by common reference symbols throughout the drawings.

  FIG. 1 is a front view of the writing instrument 1 according to the present invention in a non-writing state, and FIG. 2 is a longitudinal sectional view of the writing instrument 1 of FIG. 1 in the non-writing state.

  In FIG. 1, the writing instrument 1 has a barrel 4 formed in a cylindrical shape consisting of a front axle 2 and a rear axle 3 positioned behind the front axle 2, a grip 5 of the writing instrument 1, and a rear end of the writing instrument 1. And a plurality of operation units 6a and 6b of the unit. The gripping portion 5 is sandwiched between the front shaft taper portion 2 a at the front end of the front shaft 2 and the front shaft flange portion 2 b at the rear end of the front shaft 2 to cover the outer periphery of the front shaft 2 It is arranged.

  In this specification, in the axial direction of the writing instrument 1, the front axis tapered portion 2a side is defined as the "front" side, and the opposite side to the front axis tapered portion 2a is defined as the "rear" side.

  In FIG. 2, the front shaft 2 and the rear shaft 3 are coupled by screwing each other at the front shaft rear end screwing portion 2c and the rear shaft front end screwing portion 3a. Although these connections are by screw connection, other connection methods may be used. The barrel portion corresponding to the writing portion in the non-writing state, that is, at least the front shaft taper portion 2a of the front shaft 2 is made of at least visible material so as to be transparent or translucent. The front shaft taper portion 2a may be formed as a base of an independent component per se, and may be screwed to the shaft cylinder 4 at its rear end.

  The operation portion 6 a is a rod-like member disposed at the rear in the writing instrument 1 and protrudes radially outward from the window hole 7 provided on the outer peripheral surface of the rear end of the rear shaft 3. Although not shown, other operating parts also project radially outward from the window hole. The operation portion 6a is connected at its front end to a writing core 8 also called a refill, and is biased rearward by a spring 10 whose one end is abutted at a spring abutment portion 9. The writing core 8 includes an ink tank 11 containing ink and a writing unit 12 coupled to the front end of the ink tank 11. The writing unit 12 includes a tip 12a having a cylindrical portion and a tapered portion, and a ball which is partially supported from the front end of the tip 12a and rotatably supported.

  When the operation portion 6a is slid forward along the window hole 7 against the biasing force of the spring 10, the writing portion 12 protrudes from the front shaft opening 2e to be in the writing state. At that time, if there is another writing unit which has already been written out from the front shaft opening 2e, the other writing unit slides backward as the writing unit 12 slides forward, and the writing is not performed. It becomes a state.

  In the present embodiment, the appearance shape of the writing unit 12 and the appearance shape of the writing unit 13 are different from each other. The user visually recognizes the type of writing core (oiliness, aqueous, gel, emulsion, thermochromic, non-thermochromic, eraser erasable, etc.) or ink color etc. by visually recognizing the writing part It can be confirmed. Furthermore, as described above, since the front-axis tapered portion 2a is made of a material that is at least visible so as to be transparent or translucent, the writing core in the non-writing state does not protrude from the front-shaft opening 2e. Are also visible through the front shaft taper 2a.

  Even in the case of having three or more writing cores, the user can confirm the desired writing core by visually recognizing the appearance of the writing unit. Thus, it becomes possible to select a desired writing core without visually recognizing the operation unit as in the conventional method.

  In another embodiment, the gloss of the tip 12 a of the writing unit 12 and the gloss of the tip 13 a of the writing unit 13 are different from each other. The outer surface of the chip 12a is formed to be higher in gloss than the outer surface of the chip 13a, and the outer surface of the chip 13a is formed to be lower in gloss than the outer surface of the chip 12a There is. The user can confirm the type of the writing core or the ink color by visually recognizing the gloss of the chip.

  In the case of having three or more writing cores, for example, a writing core having a high gloss chip, a writing core having a medium gloss chip, and a writing core having a low gloss chip are black, red and blue, respectively. By visually recognizing the gloss of the writing section configured as above, the user can confirm the target writing core. Naturally, in addition to high gloss, medium gloss, low gloss, it may be composed of four or more chips having different gloss from each other, or one or more annular grooves adjacent in the axial direction of the writing instrument 1 etc. You may include the chip | tip which it had.

  FIG. 3 is a schematic view of a cross section of line XX in FIG. In this cross section, the gripping portion 5 covers the outer periphery of the barrel 4 so that three writing cores 8a, 8b and 8c are schematically shown inside the barrel 4. Although not shown, each of the three writing cores 8a, 8b and 8c is connected to the three operation parts 6a, 6b and 6c. The three sections A, B, and C define the range of the circumferential direction of the barrel 4, and in the present embodiment, they are defined to be 90 ° to 120 °, respectively. It is defined as a range of 45 ° to 60 ° in the circumferential direction on both sides of an imaginary straight line going from the center of the circular section to the respective operation parts 6a, 6b, 6c.

  In the present embodiment, the outer surfaces 5a, 5b, 5c of each of the sections A, B, C of the gripping portion 5 may have different glosses. As an example, 5a is high gloss, 5b is medium gloss, and 5c is low gloss. The respective outer surfaces 5a, 5b, 5c are suitable for identifying the three writing cores 8a, 8b, 8c in the same section as the section to which they belong. The user visually moves the finger rearward in the axial direction of the barrel 4 to the three operation units 6a, 6b, 6c in the same section as the section to which the holding section 5 belongs by visually recognizing the gloss of the holding section 5, The corresponding writing core can be put into a writing state by sliding the corresponding operation unit.

  As a matter of course, the outer surface of the gripping portion 5 may be composed of four or more sections having different glossinesses in addition to high glossiness, medium glossiness and low glossiness depending on the number of writing cores.

  As another embodiment, the outer surfaces 5a, 5b, 5c may be composed of three surfaces with different tactile sensations. As an example, 5a is a smooth surface without unevenness, 5b is an uneven surface with a textured finish, etc., 5c is one or more annular grooves adjacent in the axial direction of the writing instrument 1 It may be a formed surface. Thereby, when the user slides a finger in the axial direction of the barrel 4 from the state of gripping the gripping portion 5 by tactile sensation, for example, without visually recognizing the gripping portion 5, "smooth smooth surface" It is possible to identify each section of the grip 5 as "rough rough surface", "surface having grooves", and select the section to which the target writing core belongs.

  As another embodiment, the outer surfaces of the operation parts 6a, 6b, 6c may also have surface conditions such as gloss or grooving for each section similarly to the outer surfaces 5a, 5b, 5c of the holding part . As still another embodiment, the outer surface of the rear axle 3 between the gripping portion 5 and the operation portion 6 shown in FIG. 1 also has surface conditions such as gloss or groove processing for each section. It is also good. Thereby, for example, when the external surface of the holding part 5 of the same section, the back shaft 3 and the operation part 6 is configured to have surface states such as gloss or groove processing similar to each other, the user holds the holding part 5 Grasp the division to which the target writing core belongs by touching it with a finger, and then slide it while touching the finger axially backward along the axial direction of the barrel 4 and pass through the rear shaft 3 to operate It becomes possible to operate to the part 6. This embodiment is particularly suitable for the visually impaired and allows the realization of a so-called universal design.

  Further, in another embodiment, when the materials of the ink tank 11 containing the ink of the writing core 8 are made different and the weights of the writing core 8 are made different, the type of the writing core 8 can be easily obtained Can be easily identified. In that case, the ink tank of the writing unit 12 may be made of stainless steel, the ink tank of the writing unit 13 may be made of resin such as polypropylene, and the ink tank of the writing unit 14 may be made of metal such as iron. . Further, in the case of a thermochromic ink which tends to be inferior in long-term storage property, it is desirable to be accommodated in a metallic ink tank such as stainless steel or iron.

  Further, according to the present embodiment, it is not necessary to display the same color as the ink color on the operation unit as in the conventional case, and a writing implement having a completely new design is realized without the need to display a color or the like on the operation unit. Furthermore, since the operation unit may be configured to differ only in the state of the outer surface, it is not necessary to make the shape itself of the operation unit different as in Patent Document 1, and the manufacturing cost is reduced without impairing the design. It also becomes possible.

  FIG. 4 is a partial perspective view of the writing section with the seal coating attached to the ball in the non-writing state of the writing instrument of FIG. 1, and FIG. 5 is a writing section with a seal coating different from the seal coating of FIG. It is a partial perspective view. In FIG.4 and FIG.5, the front axis taper part 2a is abbreviate | omitted.

  FIG. 4 shows three different writing cores 12, 13 and 14 of a writing core, so as to cover a ball (not shown) held at the tip of each of the tips 12a, 13a and 14a. A seal coating 12b, 13b, 14b having a spherical portion is attached. The seal films 12b, 13b and 14b protect the ball and prevent evaporation of the ink solvent until the writing instrument is used by the user after the production of the writing instrument, and are formed of a thermoplastic resin or the like.

  In the present embodiment, the seal films 12b, 13b, and 14b are different in size, and are configured to be 12b, 13b, and 14b in descending order of size. Since the size of the seal film is determined in advance for each type or ink color of the writing core to be attached, the user confirms the type or ink color of the writing core by visually recognizing this. be able to.

  In another embodiment, the size of the seal coating 12b, 13b, 14b corresponds to the size of the outer diameter of the tip 12a, 13a, 14a constituting the writing part 12, 13, 14 of the writing core to which the seal coating is attached The size may be determined as well.

  In yet another embodiment, the outer surface of the seal coating 12b, 13b, 14b may be configured to have different gloss or surface conditions, for example, high gloss surface, medium gloss surface, low gloss surface, Alternatively, it may be a surface having one or more annular grooves axially adjacent to the writing instrument 1. Furthermore, the outer surface of the seal coating 12b, 13b, 14b corresponds to the gloss or surface condition of the outer surface of the tip 12a, 13a, 14a constituting the writing part 12, 13, 14 of the writing core to which the seal coating is attached. As such, it may be configured to have surface states similar to the corresponding chip gloss or surface state.

  Although the seal film in this embodiment is attached so as to cover the ball (not shown) held at the tip of the writing unit as described above, the seal film itself is not in contact with the ball, The rear end of the seal coating is attached to adhere to the bevel of the tip. Specifically, the distance from the rear end of the seal coating to the front end of the tip inclined portion (the end face from which the ball protrudes) can be defined as the attachment distance y (mm). Adhesion strength becomes strong. However, if the adhesion strength becomes too strong, there is also a problem that the seal coating becomes difficult to remove. Therefore, in one embodiment, when using a ball having a diameter of 1 mm or less, assuming that the diameter of the ball is x (mm), configuring a seal coating so that y ≦ 0.82−0.51 x results in constant It is preferable because the seal coating can be easily removed by the writing operation of a normal writing instrument without the need to manually remove the seal coating from the writing instrument while securing the adhesion strength of the above.

  In this case, the ball diameter is more preferably 0.55 mm or more, and the adhesion distance y is preferably 0.04 mm or more.

  FIG. 5 shows seal coatings 12c, 13c, 14c different from the seal coatings 12b, 13b, 14b of FIG. In the present embodiment, the shapes of the seal coatings 12c, 13c, and 14c are different from each other, and for example, they have different shapes such as a spherical shape, a cubic shape, and a conical shape. Since the shape of the seal film is determined in advance for each type or ink color of the writing core to be attached, the user should confirm the type or ink color of the writing core by visually recognizing it. Can.

  FIG. 6 shows five different writing cores 8 with five different sealing coatings and a writing core cap 15 attached to each. As described above, the seal coating protects the ball and prevents evaporation of the ink solvent until the writing instrument is used by the user after the production of the writing instrument, as described above. After shipping, they may come off during transportation. In such a case, the visual identification of the seal coating having different sizes or shapes of the seal coating as described above does not function. The writing core cap 15 shown in FIG. 6 is for solving such a problem, and after the seal coating is attached to the writing part of the writing core 8, the writing core cap 15 is further covered so as to cover the outside. Attach the.

  In the present embodiment, the front ends of the writing core caps 15 are shaped to be similar to each other to correspond to the shape of the seal coating attached to each writing core 8 to which the writing core caps 15 are attached. As an example, a writing core cap 15a whose front end is conically shaped to be similar to each other is attached to the writing core to which the conical seal coating 14c is attached. By this, even when the seal film is detached, the user can confirm the type of the writing core, the ink color and the like by visually recognizing the front end shape of the writing core cap.

  As another embodiment, in the case of seal coatings 12b, 13b, 14b having spherical portions and having different sizes as described in FIG. 4, the spherical portions are similar to each other to correspond to the size of the seal coatings. The front end of the writing core cap may be formed to have different sizes.

  As still another embodiment, when the ink contained in the writing core 8 is a thermochromic ink, the writing core cap 15 may also be formed as a friction body capable of erasing characters written with the thermochromic ink. It is possible. A thermochromic ink maintains a predetermined color (first color) at normal temperature (eg 25 ° C.) and changes to another color (second color) when heated to a predetermined temperature (eg 60 ° C.) After that, when the ink is cooled to a predetermined temperature (e.g., -5 [deg.] C.), the ink has the property of returning to the original color (first color). In the case of the writing core 8 containing a thermochromic ink, “erasing” here is to make the second color colorless and to heat the characters written in the first color (for example, red) to make it colorless. Let's say. Therefore, the writing core cap 15 as a friction body is rubbed against the writing surface on which characters and the like are written to generate frictional heat, thereby making it possible to change the characters and the like to be colorless, that is, to erase them. . As a matter of course, the second color may be a color other than colorless. As materials for forming the friction body, rubber elastic materials such as rubber materials such as silicone rubber, nitrile rubber, ethylene propylene rubber, ethylene propylene diene rubber, etc., thermoplastic elastomers such as styrene elastomer, olefin elastomer, polyester elastomer, 2 types A mixture of the above rubber elastic material, a mixture of a rubber elastic material and a synthetic resin, a commercially available eraser, and the like can be mentioned. The friction body is formed particularly from a mixture of polypropylene resin and styrenic thermoplastic elastomer, or a mixture of polypropylene resin and polypropylene thermoplastic elastomer, and the blending ratio thereof is 1: 1 to 1: 4 in weight ratio, respectively, Agent, plasticizer and filler, made of a material with a durometer hardness A specified in JIS K6251 of 70 ° to 100 °, and the ability to erase the pencil drawing line defined in JIS S 6050-2002 ) Is formed of a material containing no plasticizer, which is 70% or less. Thus, the friction body is effective because it is hard to cause scuffs at the time of abrasion and is excellent in thermochromism.

  FIG. 7 is a front view of the package 16 accommodating the plurality of writing cores 8 in a state in which the corresponding writing core cap 15 is attached as shown in FIG. The package 16 forms a hanging hole 17 at the top, and an identification code 18 is displayed at any location of the package 16. The package 16 has a viewing window 19 made of a transparent or translucent material on at least a part of the front surface, and the writing core cap 15 can be viewed through the viewing window 19.

The present invention is not limited to the composite writing tool having a writing lead of the plurality of ball-point pen, a ballpoint pen except, mechanical pencil, it is also applicable to composite writing tool having a marker, and the like.

  In the present invention, in the case of a writing instrument having two types of writing cores 8 that the gloss is different from each other, for example, the gloss of the operation portion, the holding portion, the tip, and the seal film constituting one writing core It means that the glosses of the operation parts, the grip parts, the chips, and the seal films are different from each other with respect to the gloss of the constituting operation parts, grip parts, chips, and seal films. Therefore, in the present invention, that the gloss corresponds or is similar to each other means, for example, the relationship between the operation unit having high gloss when comparing two operation units, and the holding unit having high gloss when comparing two holding units. At this time, the operation unit with high gloss and the holding unit with high gloss are expressed as corresponding or similar in gloss.

  Similarly, in the present invention, in the case of a writing instrument having two types of writing cores having different sizes or shapes, for example, the size or the shape of the tip or seal coating constituting one writing core is the other writing core It means that the size or the shape of the respective chips or the seal films are obviously different from the size or the shape of the chips or the seal films constituting the. Therefore, in the present invention, corresponding or similar sizes refer to, for example, a large chip when comparing two chips and a large seal coating when comparing two seal films. In this case, the large chip and the large seal coating are expressed as corresponding or similar in size.

  In the present invention, the chip can be formed of a metal made of steel or the like. In order to make the chip have a high gloss, mechanical polishing such as buffing, electrolytic polishing, chemical polishing or the like may be used, for example. The surface roughness defined by B 0601 can be a so-called mirror finish having a maximum height Rz of 0.4 μm or less.

  Moreover, in order to make this metal chip medium gloss, the maximum height Rz is 0 by cutting etc. which made the feed speed of the blade (tool bit) slow while increasing the rotational speed of the workpiece (chip) to be processed. It can be so-called gloss finish of .4 μm to 3.2 μm.

  In addition, to make this metal chip low-gloss, so-called rough finishing or parallel finishing with maximum height Rz of 3.2 μm to 12.5 μm by cutting may be used, or surface treatment such as shot blasting after cutting The surface condition may be roughened to make the surface matte and to allow light reflected from the surface to be diffusely reflected.

  Further, in order to form an annular groove axially adjacent to this metal chip, the rotational speed of the work (chip) to be cut is sufficiently reduced to increase the feed speed of the blade (cutting tool). Cutting may be performed so that the maximum height Rz is 25 μm to 50 μm. Alternatively, the groove can be formed by processing only the rough shape of the chip and then additionally processing it separately, or the surface having a grooved pattern can be obtained by hairline finishing. Generally, if the groove spacing between adjacent grooves is about 0.3 mm or more and the peak height is 25 μm or more, it becomes possible to recognize the grooves with the naked eye in a normal writing state, and touch with a finger Makes it possible to recognize that it is a groove.

  Furthermore, when the operation unit is formed of a plastic material, in order to make the operation unit highly glossy, the surface roughness of the injection molding mold can be designed to reduce the maximum height Rz, and vice versa In order to reduce the gloss, the surface of the mold may be textured to obtain a low gloss. After molding, a paint may be applied to adjust the gloss.

  In the present invention, the gripping portion 5 may be formed of a rubber elastic material such as an elastomer, but does not have a gripping portion such as an elastomer, and the front shaft cylindrical portion etc. is used as the gripping portion. You may

  According to the present invention, as in the case of using a conventional compound writing instrument in which the same color as the ink color of the writing core corresponding to the operation portion is displayed, the user moves his eyes from the characters to the operation unit There is no need to look for the operation unit in which the type of the core or the ink color is displayed, or any desired operation unit is slid one after another until the target writing core is obtained, and the writing state is made trial writing. There is an effect that it is inefficient, such as switching to another, and there is no need to do waste in time and in operation.

Reference Signs List 1 writing instrument 2 front shaft 2a front shaft tapered portion 2b front shaft flange portion 2c front shaft rear end threaded portion 2d front shaft cylindrical portion 2e front shaft opening 3 rear shaft 3a rear shaft front end threaded portion 4 shaft cylinder 5 grip portion 6 Operating part 6a Operating part 6b Operating part 7 Window hole 8 Writing core 8a Writing core 8b Writing core 9c Writing core 9 Spring contact part 10 Spring 11 Ink tank 12 Writing part 12a Tip 12b Ball 12c Seal coating 12d Seal coating 13 Writing section 13a Tip 13b Ball 13c Seal coating 13d Seal coating 14 Writing part 14a Tip 14b Ball 14c Seal coating 14d Seal coating 15 Writing core cap 15a Writing core cap tip shape 16 Package 17 Suspension hole 18 Identification code 19 Visuality window A Category B Category C Division

Claims (4)

A compound writing instrument having a plurality of writing cores,
It has a plurality of operation units for operating each of the writing cores,
By operating the operation unit, the one corresponding writing core can be switched from the non-writing state to the writing state, and the other writing cores in the writing state can be switched to the non-writing state. In a compound writing instrument,
Since the barrel portion corresponding to the writing portion of the writing core in the non-writing state is transparent or translucent, the writing portion is visible in the non-writing state,
The writing unit includes a tip having a tapered portion, and a ball which is partially protruded from a front end of the tip and rotatably held.
The compound writing instrument characterized in that the glosses of the outer surfaces of the tapered portions are different from each other. A compound writing instrument having a plurality of writing cores,
It has a plurality of operation units for operating each of the writing cores,
By operating the operation unit, the one corresponding writing core can be switched from the non-writing state to the writing state, and the other writing cores in the writing state can be switched to the non-writing state. In a compound writing instrument,
It further comprises a gripper having a number of sections equal to the number of writing cores,
Double if the writing instrument you characterized in that the gloss of the outer surface of each of said sections of said holding part are different from each other. A compound writing instrument having a plurality of writing cores,
It has a plurality of operation units for operating each of the writing cores,
By operating the operation unit, the one corresponding writing core can be switched from the non-writing state to the writing state, and the other writing cores in the writing state can be switched to the non-writing state. In a compound writing instrument,
Since the barrel portion corresponding to the writing portion of the writing core in the non-writing state is transparent or translucent, the writing portion is visible in the non-writing state,
Each of the writing cores is provided with a seal coating for covering the writing unit,
Double if the writing instrument you characterized in that the gloss of the shape or outer surface of the sealing film are different from each other. It is a package which accommodates a plurality of writing cores of a compound writing instrument according to claim 1 or 3 , and at least different parts of the plurality of writing cores are visible.

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