JP2005335148A - Multi-refill writing instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a multi-refill writing instrument which can be easily found even in a dim place, and which enables a desired writing body to protrude from/recede into an opening at an leading end of a barrel by being selected from among a plurality of writing bodies housed in the barrel. <P>SOLUTION: The leading end of the barrel is formed by containing a light storage material. In the "push-action" or "rotary" multi-refill writing instrument with the plurality of writing bodies housed in the barrel, a display mark or an indicating mark, which is attached to an outer peripheral surface of the barrel and which indicates the type of the writing body or a color of ink infilled into the writing body, is formed by containing the light storage material. In the "sliding type" multi-refill writing instrument, a sliding member for sliding the housed writing body is formed by containing the light storage material, and colors of lights emitted from the light storage materials for the respective sliding members are made different from one another. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a multi-core writing instrument in which a plurality of writing bodies such as a ballpoint pen and a mechanical pencil are accommodated in a shaft cylinder.

A plurality of ballpoint pens with different colored inks, or one or more ballpoint pens and one or more mechanical pencils, or a lead core diameter A multi-core writing instrument containing a plurality of different mechanical pencil writing bodies has been provided and well known. Further, in such a multi-core writing instrument, there is also known a feeding structure for projecting the tip of the writing body stored in the shaft tube from the tip opening of the shaft tube. is there.
a) Each pendulum housed in a shaft cylinder is provided with a pendulum-type pendulum-type push rod in which the end on the cursive body side is a free end and the opposite side is connected to a knock body in the shaft cylinder behind the cursive body. On the outer circumferential surface of the shaft cylinder on the opposite side of the circle, a display mark corresponding to the cursive, for example, a ballpoint pen or a mechanical pencil, a display mark representing the color of the ink filled in the cursive, or a writing When using a desired writing body with a display mark indicating the core diameter of the body, the pendulum is tilted by pressing the knock body by tilting the shaft cylinder so that the display mark of the desired writing body is on the upper side. The push rod is brought into contact with the rear end of the cursive body corresponding to the desired display mark or the member provided at the rear end of the cursive body to advance the cursive body, and the front end portion of the desired cursive body is opened at the front end of the shaft cylinder. A feeding structure called a “knock type”, which is protruded from the portion.
b) A shaft cylinder is composed of a trunk shaft and a rotary shaft connected to the rear of the barrel shaft so as to be rotatable, and the rotary shaft is rotated with respect to the trunk shaft, and an indication mark attached to the trunk shaft and the rotary shaft; By aligning the position of the display mark displayed corresponding to the type of the cursive body, the cursive body provided in the shaft cylinder advances the cursive body corresponding to the display mark, and the tip of the cursive body is moved to the tip of the shaft cylinder. A so-called “rotary type” feeding structure that protrudes from the opening.
c) A slide member having a raised portion is attached to the rear end of each cursive body, the raised portion protrudes outward from a sliding groove formed in the rear end portion of the shaft tube, and the raised portion is directed toward the tip end of the shaft tube. The writing body is advanced by advancing operation, and the locking portion formed on the slide member is locked to the locked portion formed on the rear end portion of the shaft cylinder, so that the tip end portion of the writing body is moved from the tip opening portion of the shaft tube. A feeding structure called a “sliding type” which is projected.

  In such “knock-type” and “rotation-type” multi-core writing instruments, as described above, display marks and instruction marks are attached so that a desired writing body can be easily selected. In the “slide type” multi-core writing instrument, each slide member is formed in the same color as the color of the ink filled in, for example, a writing body attached to the tip.

  By the way, a writing instrument in which a shaft tube or the like is formed of a phosphorescent material so as to make it easy to search for a writing instrument in a dark place has been proposed and known by Japanese Utility Model Laid-Open No. 5-39983, Japanese Patent Laid-Open No. 8-207492, and the like.

As in the past, when a shaft tube or the like is formed of a phosphorescent material (a synthetic resin containing a phosphor), a writing instrument can be easily found and used in a dark place. In the core writing instrument, although it can be easily found, when trying to use it, there is an act of selecting a desired writing body from among a plurality of writing bodies stored in the shaft cylinder, as described above. The color of the indication mark, the display mark, or the slide member cannot be determined only by the brightness due to the light emission of the phosphorescent material in the shaft tube, and there is a problem that a desired cursive character cannot be selected.
JP 2002-337498 A Japanese Utility Model Publication No. 5-39983 JP-A-8-207492

  It is an object of the present invention to obtain a multi-core writing instrument that can be easily searched even in a dim place and can select and write a desired writing body from among a plurality of writing bodies stored in a shaft cylinder. It is the purpose.

The present invention
“1. A plurality of cursive objects are slidably housed in the shaft cylinder and displayed on the outer peripheral surface of the shaft cylinder on the opposite side of the circumference of each cursive body corresponding to the type of cursive body. By attaching the display mark, tilting the barrel so that the desired display mark faces upward, and pressing the knock body, the end on the cursive side arranged behind the cursive body is the free end and the opposite side is The pendulum-type push rod connected to the knock body abuts against the rear end of the cursive body corresponding to the desired display mark or the member provided at the rear end of the cursive body to advance the cursive body, and the desired cursive body A multi-core writing instrument in which the tip of the shaft tube is protruded from the tip opening of the shaft cylinder, and the tip of the shaft cylinder not provided with the display mark is provided by a phosphorescent material.
2. A plurality of writing bodies are slidably housed back and forth in a shaft cylinder composed of a barrel shaft and a rotation shaft that is rotatably provided behind the barrel shaft, and the rotation shaft is rotated with respect to the barrel shaft. By aligning the indication mark on the outer peripheral surface of the barrel shaft and the rotating shaft with the position of the display mark displayed corresponding to the type of cursive material stored in the shaft cylinder, the display mark is displayed by the cam slope provided in the shaft cylinder. In the multi-core writing instrument in which the writing body corresponding to the above is advanced and the tip of the writing body protrudes from the tip opening of the shaft tube, the indication mark, the indication mark, and the indication cylinder and the indication mark and the indication mark are not attached. The multi-core writing instrument characterized by providing the front-end | tip part of this with the phosphorescent material.
3. 3. The multi-core writing instrument according to claim 1, wherein the display mark has a different light emission color of the phosphorescent material of each display mark.
4). A slide groove in which a plurality of writing bodies are slidably housed in a shaft cylinder, a slide member having a raised portion is attached to the rear end of each writing body, and the raised portion is formed in the rear end portion of the shaft cylinder. The writing body is advanced by causing the protruding portion to protrude further outward and the protruding portion to advance toward the tip of the shaft tube, and the locking portion formed on the slide member is engaged with the locked portion formed at the rear end portion of the shaft tube. In a multi-core writing instrument in which the tip of the writing body is protruded from the tip opening of the shaft tube, each of the slide members is formed of a phosphorescent material so that the emission colors thereof are different, and the slide member is exposed. A multi-core writing instrument, characterized in that a tip portion of a shaft cylinder that is not provided is provided with a phosphorescent material. "
It is.

  Since the multi-core writing instrument of the present invention has the above-described structure, even in a dim place, the multi-core writing instrument of the invention described in claim 1 or 2 emits a display mark or an instruction mark, so that the location of the writing instrument itself is known. In addition, since the display mark and the instruction mark can be confirmed, a desired writing body can appear and disappear from the tip opening of the shaft tube. Moreover, the writing surface at the time of writing can be illuminated by light emission of the phosphorescent material of the front-end | tip part of a shaft cylinder.

  By making the shape of each display mark and display color different, it becomes possible to select a desired cursive letter from a plurality of cursive letters, but in dark places, the shape of the display mark is similar. Difficult to identify. However, if the emission colors of the display marks are made different, the display marks can be reliably identified regardless of the shape of the display marks.

  In the multi-core writing instrument of the invention described in claim 4, since each slide member emits light, the location of the writing instrument itself is known, and the luminous color of the phosphorescent material of each slide member is different, so that the desired writing body Can emerge from the tip opening of the barrel. Moreover, the writing surface at the time of writing can be illuminated by light emission of the phosphorescent material of the front-end | tip part of a shaft cylinder similarly to the invention which concerns on the said claim.

  In the “knock-type” or “rotation-type” multi-core writing instrument, the feeding structure is manufactured in the same manner as in the prior art, and the indication mark and the display mark attached to the peripheral surface of the shaft tube are provided with a phosphorescent material. Examples of the phosphorescent material include an ink containing a phosphor, a sheet, and a synthetic resin. In the case of ink, instruction marks and display marks are provided by screen printing or the like. In the case of a sheet, the instruction mark and the display mark are formed on the sheet, and the cut instruction mark and the display mark are attached to the shaft tube. In the case of synthetic resin, the indication mark and the display mark are provided by two-color molding together with the shaft tube.

  In the “slide type” multi-core writing instrument, parts other than the slide member are manufactured in the same manner as in the past, and the slide member is formed of a phosphorescent material made of a resin blended with a phosphor. However, even if it is simply formed of a phosphorescent material, for example, a gray slide member attached to the rear end of a ballpoint pen containing black ink, or a red attached to the rear end of a ballpoint pen containing red ink. The slide member of the system, the blue slide member attached to the rear end of the ballpoint pen containing the blue ink, or the white slide member attached to the rear end of the mechanical pencil, the gray system, Even if the phosphor is mixed with a red, blue or white resin, each slide member emits light in a dark place, but the color of the slide member cannot be identified. The desired cursive letter cannot be selected from the inside. Therefore, each slide member is manufactured with the luminous material from which luminescent color differs. As the phosphorescent material, there is a synthetic resin containing a phosphor.

As phosphors (phosphorescent pigments), there are long-afterglow phosphors such as N-Luminescent Luminova (trade name) and GSS (trade name) manufactured by Nemoto Special Chemical Co., Ltd., and the former emits light as shown below. There are different types of colors.
Green light emission ... Product number: G-300C, G-300M, G-300F, G-300FF, G-300FFS
Blue light emission ... Product number: BG-300M, BG-300F, BGL-300FF
Purple light emission ... Product number: V-300C, V-300M

  About the sheet | seat as a phosphorescent material, there exists what is marketed. For example, there is a luminova sheet (trade name) formed by blending the N night light luminova manufactured by Nemoto Special Chemical Co., Ltd. and a lumin sheet (trade name) formed by blending GSS.

Embodiments of the present invention will be described with reference to the drawings. The same code | symbol is attached | subjected to what shows the same member and the same location.
The multi-core writing instrument 1 of the embodiment of the invention according to claim 1 shown in FIG. 1 and FIG. 2 has a structure called “knock type”, and the feeding structure for feeding out the tip of the writing body is as follows. It is not different from the conventional one.

  FIG. 1 is a side view of the multi-core writing instrument 1, and FIG. 2 is an enlarged end view of the main part showing the internal structure of the multi-core writing instrument 1.

  The shaft cylinder 2 includes a front shaft 3, a body shaft 4, and a sheath shaft 5, and the front shaft 3 is screwed to the tip of the body shaft 4. The sheath shaft 5 is disposed behind the trunk shaft 4 so as to be movable back and forth with respect to the trunk shaft 4 via a coil spring 6 between the trunk shaft 4 and the sheath shaft 5. The shaft tube 2 is made of synthetic resin, and the tip shaft 3 is a phosphorescent pigment of G-300C, which emits green light of N afterglow luminova (trade name), a long afterglow phosphor made by Nemoto Special Chemical Co., Ltd. It contains and is formed. In the shaft cylinder 2, a ballpoint pen 7 a filled with black oil-based ink (not shown), a ballpoint pen 7 b filled with red oil-based ink (not shown), and a pencil pencil Three cursive letters (not shown) are stored. In FIG. 2, for the sake of convenience, only the ballpoint pens 7a and 7b are drawn.

  Members 8 a and 8 b are inserted into the rear ends of the writing bodies 7 a and 7 b, respectively, and the writing bodies 7 a and 7 b are accommodated by being biased rearward by the coil spring 9. A head crown 11 and a clip 12 are attached to the rear end of the sheath shaft 5 via a head crown fixing member 10. The crown 11 is detachably attached from the crown fixing member 10. Further, an inner cylindrical body 13 is connected to the crown-fixing member 10, a concave portion 13 a is provided at the distal end portion of the inner cylindrical body 13, and a pendulum push rod 14 having the distal end portion 14 a as a free end. The head 14b is inserted and arranged. The pendulum push rod 14 has a head 14 b held by a fixing member 15 fixed to the inner cylinder 13, and the head 14 b is movable in the recess 13. The inner cylinder 13 can move back and forth in conjunction with the sheath shaft 5 and constitutes a knock body together with the sheath shaft 5. The inner cylinder 13 and the crown 11 are provided with a space 16 into which an eraser (not shown) can be inserted.

  In the multi-core writing instrument 1 of this structure, the pendulum push rod 14 always stands upright when the shaft cylinder 2 is tilted, so that the tip portion 14a of the pendulum push rod 14 is the lower side when the shaft cylinder 2 is tilted. It opposes the member 8 inserted in the cursive body located in the position. When the sheath shaft 5 is pressed in this state, the inner cylinder 13 is also moved forward in conjunction with the sheath shaft 5 and the pendulum push rod 14 is also pushed down, the writing body is advanced and the tip (not shown) is pivoted. It protrudes from the tip opening 2 of the tube 2.

  On the outer peripheral surface of the rear end portion of the sheath shaft 5, display marks 17 corresponding to the respective cursive bodies are provided on the outer peripheral surface on the opposite side where the cursive body is located, as in the past. When the ink filled in the cursive body is black ink, the “B” display mark 17a is provided with a phosphorescent material, and when the ink filled in the cursive body is red ink, the “R” display mark 17b is provided with a phosphorescent material. Although not shown, the display mark was similarly provided with a phosphorescent material when the cursive was a mechanical pencil. In FIG. 2, “B” and “R” display marks 17a and 17b are drawn adjacent to each other. However, for the sake of explanation, they are actually provided at positions shifted by 120 degrees on the circumference.

  "B" of the display mark 17a is a product that emits green light of Niko Luminova (trade name) of long afterglow phosphor made by Nemoto Special Chemical Co., Ltd. in VIC series ink (colorless ink) of Seiko Advance Co., Ltd. Number: Displayed by screen printing using an ink obtained by containing a phosphorescent pigment of G-300C. Similarly, “R” of the display mark 17b is an ink obtained by adding a luminescent pigment of product number: V-300C, which emits purple light, manufactured by Nemoto Special Chemical Co., Ltd., to the VIC series ink of Seiko Advance Co., Ltd. And displayed by screen printing. Similarly, the display mark corresponding to the pencil of the mechanical pencil was obtained by including a phosphorescent pigment of BG-300M, which emits blue light produced by Nemoto Special Chemical Co., Ltd., in the VIC series ink of Seiko Advance Co., Ltd. The multi-core writing instrument 1 of the invention according to claim 1 was manufactured by using ink to display by screen printing.

  The multi-core writing instrument 50 of the embodiment of the invention according to claim 2 shown in FIG. 3 and FIG. 4 has a structure called “rotary type”, and the feeding structure for feeding out the tip of the writing body is as follows. It is not different from the conventional one. FIG. 3 is a side view of the multi-core writing instrument 50, and FIG. 4 is an enlarged end view of a main part showing an outline of a feeding structure of the multi-core writing instrument 50.

  The shaft cylinder 51 includes a body shaft 53 having a tip-shaped tip shaft 52 screwed to the tip thereof and a sheath shaft 54 that is a rotation shaft. The sheath shaft 54 is rotatably connected to the trunk shaft 53. The shaft 51 is made of a synthetic resin, and the front shaft 52 is a phosphorescent pigment of G-300C, which emits green light of a long afterglow phosphor N night light luminova (trade name) manufactured by Nemoto Special Chemical Co., Ltd. It contains and is formed. In the shaft cylinder 51, similarly to the above embodiment, a ballpoint pen 7a filled with black oil-based ink (not shown) and a ballpoint pen 7b filled with red oil-based ink (not shown). And three pencils of a mechanical pencil (not shown). In FIG. 4, for the sake of convenience, only the ballpoint pens 7a and 7b are drawn.

  A rear end 55 of the trunk shaft 53 is covered with a sheath shaft 54 and has three sliding grooves 56. In each of the sliding grooves 56, writing bodies 7 a and 7 b having slider members 57 a and 57 b inserted in the rear ends are accommodated by being biased rearward by a coil spring 58. On the side surfaces of the slider members 57 a and 57 b, a protrusion 60 having a peak portion 59 pointed rearward is provided, and the protrusion 60 protrudes outward of the shaft cylinder 51. A cam slope 61 formed so as to be displaced in the direction along the axis is provided on the inner surface of the sheath shaft 54, and the slider of each cursive body is rotated by rotating the sheath shaft 54 relative to the trunk shaft 53. The member 57 is provided so as to be able to come into contact with an inclined surface 59 a constituting the top portion 59 of the protrusion 60.

  A head crown 63 and a clip 64 are attached to the rear end of the sheath shaft 54 via a head crown fixing member 62. The crown 63 is detachably attached from the crown fixing member 62. A space 65 is provided in the head crown fixing member 62 and the head crown 63, and an eraser 66 is inserted.

  Since the multi-core writing instrument 50 of this structure rotates the sheath shaft 54 with respect to the trunk shaft 53, the projections 60 of the slider members 57a and 57b of the writing bodies 7a and 7b are pressed along the cam slope 61. Each cursive body moves back and forth, and the tip end portion projects from the tip opening portion 51 a of the shaft tube 51. FIG. 3 shows a state in which the tip portion 67 of the writing body 7a filled with black ink protrudes.

  On the outer peripheral surfaces of both shafts in the vicinity of the connecting portion between the trunk shaft 53 and the sheath shaft 54, a triangle mark indicating mark 68 is provided on the trunk shaft 53 side, and the sheath shaft 54 is provided on the sheath shaft 54 side, as in the prior art. When the writing tip of one writing body rotates and protrudes from the tip opening 52a of the shaft tube 52, the indication mark 67 is filled into the writing body at a position that is in a straight line in the direction along the axis. When the ink is black ink, a “B” display mark 69 a is provided with a phosphorescent material, and when the ink filled in the cursive body is red ink, an “R” display mark 69 b is provided with a phosphorescent material. Although not shown, the display mark was similarly provided with a phosphorescent material when the cursive was a mechanical pencil. In FIG. 3, "B" and "R" display marks 69a and 69b are drawn adjacent to each other. However, for the sake of explanation, they are actually provided at positions shifted by 120 degrees on the circumference.

  As in the case of the above-described embodiment, “B” of the display mark 69a and “△” of the instruction mark 68 are used in the VIC series ink (colorless ink) of Seiko Advance Co., Ltd. It displayed by screen printing using the ink obtained by containing the luminous pigment of the product number: G-300C which light-emits green of N luminescent luminova (brand name) of a fluorescent substance. Similarly, “R” of the display mark 68b is an ink obtained by adding a luminescent pigment of product number: V-300C, which emits purple light, manufactured by Nemoto Special Chemical Co., Ltd., to the VIC series ink of Seiko Advance Co., Ltd. And displayed by screen printing. Similarly, the display mark corresponding to the pencil of the mechanical pencil was obtained by including a phosphorescent pigment of BG-300M, which emits blue light produced by Nemoto Special Chemical Co., Ltd., in the VIC series ink of Seiko Advance Co., Ltd. The multi-core writing instrument 50 according to the second aspect of the present invention was manufactured by screen printing using ink.

  The multi-core writing instrument 100 of the embodiment of the invention according to claim 4 shown in FIG. 5 and FIG. 6 has a structure called “slide type”, and the feeding structure for feeding out the tip of the writing body is as follows. It is not different from the conventional one. FIG. 5 is a side view of the multi-core writing instrument 100, and FIG. 6 is an enlarged end view of the main part showing the internal structure of the multi-core writing instrument 100.

  The shaft cylinder 101 includes a front shaft 102, a rear shaft 103, and a sliding shaft 104. The shaft cylinder 101 is made of synthetic resin, and the front shaft 102 is a long-afterglow phosphor N-night luminous luminova (trade name) manufactured by Nemoto Special Chemical Co., Ltd., which emits green light, product number: G-300C phosphorescent pigment It contains and is formed. In the shaft cylinder 101, similarly to the above-described embodiment, a ballpoint pen writing body 7a filled with black oil-based ink (not shown) and a ballpoint pen writing body 7b filled with red oil-based ink (not shown). And three pencils of a mechanical pencil (not shown). In FIG. 6, for the sake of convenience, only the ballpoint pens 7a and 7b are drawn. The front shaft 102 and the rear shaft 103 are screwed together, and a grip 105 is disposed on the grip portion of the front shaft 102 by two-color molding. The sliding shaft 104 is slidably disposed at the rear end of the rear shaft 103, and three sliding grooves 106 are formed on the peripheral surface. The sliding shaft 104 is for feeding out a lead core of a mechanical pencil writing body housed in a shaft cylinder.

  In each of the sliding grooves 106, each cursive body is inserted and energized rearward by a coil spring 107. In this embodiment, the engaging member 108 is inserted into the rear end opening of each of the writing bodies 7a and 7b, but it may be omitted. A slide member 109 serving as an operating body is inserted into the engagement member 108 at the rear end of each writing body via the engagement member 108 and formed on the slide members 109a, 109b, and 109c. The raised portions 111 a, 111 b, and 111 c are disposed so as to protrude outward from the knock body 106 from the sliding groove 105.

  When the writing body 7 a is used, the locking portion 112 of the slide member 109 a corresponds to the locking portion 112 formed on the knock body 106 by advancing the raised portion 111 a toward the tip opening portion 101 a of the shaft tube 101. The tip portion (not shown) of the writing body 7 a is protruded from the tip opening portion 101 a of the shaft tube 101. When the cursive body 7b is used from this state, the raised portion 111b of the slide member 109b is advanced. The release protrusion 113 of the slide member 109b comes into contact with the protrusion 114 of the slide member 109a locked to the locked portion, and the locking portion 112 is pushed out of the locked portion to release the lock of the slide member 109a. To do. The cursive body 7 a returns to the original state by the elastic force of the coil spring 107. Further, when the raised portion 111b is advanced, the locking portion 112 of the slide member 109b is locked to the corresponding locked portion (not shown), and the tip portion (not shown) of the writing body 7b is moved. Protruding. In the case of using the mechanical pencil writing body 7c, similarly, the raised portion 111c of the slide member 109c is advanced, the leading end portion of the writing body protrudes from the leading end opening portion 101a of the shaft cylinder 101, and the knocking body is pressed. Thus, the lead core can be fed out.

  Connected to a ballpoint pen 7a filled with black oil ink (not shown), a ballpoint pen 7b filled with red oil ink (not shown), and a pencil pencil (not shown). Each of the slide members 109a, 109b, and 109c was molded with a synthetic resin containing a phosphorescent pigment. The slide member 109a corresponding to the cursive body 7a filled with black oil-based ink (not shown) is a green phosphorescent light of N afterglow luminova (trade name) of long afterglow phosphor made by Nemoto Special Chemical Co., Ltd. as a phosphorescent pigment. Product No .: Molded with polycarbonate containing about 9% by mass of G-300C. The slide member 109b corresponding to the cursive body 7b filled with red oil-based ink (not shown) similarly contains about 9% by mass of V-300C, which is a product that emits purple light as a phosphorescent pigment. Molded with polycarbonate. Similarly, a slide member 109c corresponding to a mechanical pencil writing body (not shown) was molded from a polycarbonate containing about 9% by mass of BG-300C, a product that emits blue light as a phosphorescent pigment. .

In a multi-core writing instrument in which a plurality of writing bodies are housed in a shaft cylinder, a tip end of the shaft cylinder is selected by selecting a writing tip portion of a desired writing body attached to the outer peripheral surface of the shaft cylinder from a plurality of writing bodies. Since the indicator mark, the display mark, or the slide member for projecting from the portion is formed using a phosphorescent material, the writing instrument itself can be easily found even in a dim place, and from among a plurality of cursive objects stored in the shaft cylinder Since it can be used by selecting a desired writing body and projecting from the tip opening of the shaft tube, there is an application for those who need to write in a dim place or in a place without night light.

It is a side view of the multi-core writing instrument which shows the Example of the invention which concerns on Claim 1. It is a principal part expanded end elevation which shows the outline of the delivery structure of the said Example. It is a side view of the multi-core writing instrument which shows the Example of the invention which concerns on Claim 2. It is a principal part expanded end elevation which shows the outline of the delivery structure of the said Example. It is a side view of the multi-core writing instrument which shows the Example of the invention which concerns on Claim 4. It is a principal part expanded end elevation which shows the outline of the delivery structure of the said Example.

Explanation of symbols

1, 50, 100 Multi-core writing instrument 2, 51, 101 Shaft cylinder 2a, 51a, 101a Tip opening 4, 53, 102 Body shaft 5, 54, 103 Sheath shaft 7a, 7b, 7c Writing body 8 Member 13 Inner cylinder 14 Pendulum-type push rod 17 Display mark 50 Multi-core writing instrument 51 Shaft cylinder 53 Body shaft 54 Sheath shaft 61 Cam slope 68 Indicator mark 69 Display mark 106 Sliding grooves 109a, 109b, 109c Slide members 111a, 111b, 111c Raised portion 112 Stop

Claims (4)

  A plurality of cursive objects are slidably stored back and forth in the shaft cylinder, and display marks are displayed on the outer peripheral surface of the shaft cylinder on the opposite side of the circumference of each cursive body corresponding to the type of cursive body. And tilt the shaft so that the desired display mark faces upward, and press the knock body, so that the end on the side of the cursive body arranged behind the cursive body is the free end and the opposite side is the knock body The pendulum-type push rod that is continuously provided contacts the rear end of the cursive body corresponding to the desired display mark or the member provided at the rear end of the cursive body to advance the cursive body, and the front end portion of the desired cursive body A multi-core writing instrument, wherein the display mark and the tip of the axial cylinder not provided with the display mark are provided by a phosphorescent material.   A plurality of writing bodies are slidably housed back and forth in a shaft cylinder composed of a barrel shaft and a rotation shaft that is rotatably provided behind the barrel shaft, and the rotation shaft is rotated with respect to the barrel shaft. By aligning the indication mark on the outer peripheral surface of the barrel shaft and the rotating shaft with the position of the display mark displayed corresponding to the type of cursive material stored in the shaft cylinder, the display mark is displayed by the cam slope provided in the shaft cylinder. In the multi-core writing instrument in which the writing body corresponding to the above is advanced and the tip of the writing body protrudes from the tip opening of the shaft tube, the indication mark, the indication mark, and the indication cylinder and the indication mark and the indication mark are not attached. The multi-core writing instrument characterized by providing the front-end | tip part of this with the phosphorescent material.   3. The multi-core writing instrument according to claim 1, wherein the display mark has a different emission color of the phosphorescent material of each display mark. 4. A slide groove in which a plurality of writing bodies are slidably housed in a shaft cylinder, a slide member having a raised portion is attached to the rear end of each writing body, and the raised portion is formed in the rear end portion of the shaft cylinder. The writing body is advanced by causing the protruding portion to protrude further outward and the protruding portion to advance toward the tip of the shaft tube, and the locking portion formed on the slide member is engaged with the locked portion formed at the rear end portion of the shaft tube. In a multi-core writing instrument in which the tip of the writing body is protruded from the tip opening of the shaft tube, each of the slide members is formed of a phosphorescent material so that the emission colors thereof are different, and the slide member is exposed. A multi-core writing instrument, characterized in that a tip portion of a shaft cylinder that is not provided is provided with a phosphorescent material.

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