JP2013022765A - Writing instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a writing instrument which is highly flexible.SOLUTION: A writing instrument 1 includes: a writing element 11 for writing a paper sheet with its tip; a hole part 52 which has its tip formed in a tapered cylindrical shape, houses the writing element in it, and supports a writing part atop; an outer hull member 10 which has cylindrical members 21, 22 forming parts thereof and provided double differing in diameter, the inside cylindrical member 21 being viewable from the outside cylindrical member 22; and a driving mechanism 12 which makes the tip of the writing element 11 project and retract from/to the outer hull member 10.

Description

  The present invention relates to a writing instrument in which an outer member is formed of a resin material.

  Currently, a writing instrument whose outer member is formed of a resin material is known. As this writing instrument, for example, a ballpoint pen having a writing body containing ink or gel ink, a mechanical pencil having a writing body for projecting a core formed of graphite or the like are known.

  Since such writing instruments are relatively inexpensive, they may be used for promotional items, goods, etc. by providing marks such as company names and product names, designs such as characters, etc. on the outer member.

  These designs, etc. are provided on the outer surface of the outer member of the writing instrument by attaching screen sheets, pad printing, printing by transfer and foil stamping, or paper sheets having an adhesive layer printed with the design etc. It is done.

JP 2006-264095 A

  The writing instrument described above has the following problems. That is, the writing instrument is configured to be provided on the outer surface of the outer member by printing or the like, and the range in which the design or the like is provided is limited to only the outer member. Moreover, since a design etc. are limited only to the structure provided in the outer surface of an outer shell member, there exists a problem that it is difficult to obtain a high visual effect. For example, in order to obtain a high visual effect, it is possible to cope with the shape of the outer member such as providing unevenness on the surface of the outer member, but it is necessary to change the shape of the outer member according to the design etc. , The degree of freedom is low, and the manufacturing cost increases. For this reason, a writing instrument that can provide a design or the like with a high degree of freedom is required.

  Then, this invention aims at providing the writing instrument which can provide a design etc. with a high freedom degree.

  In order to solve the above problems and achieve the object, the writing instrument of the present invention is configured as follows.

  The writing instrument of one embodiment of the present invention has a writing body having a writing portion for writing at the tip thereof, and the tip is formed into a tapered cylindrical shape, and the writing body is housed therein and formed at the tip thereof. A hole that supports the writing part, and a cylindrical member that is doubled with different diameters that form part of the hole, and the inner cylindrical member is visible from the outer cylindrical member An outer member formed in a possible manner, and a drive mechanism for causing a tip of the writing body to protrude from the outer member.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the writing instrument which can provide a design etc. with a high freedom degree.

Sectional drawing which shows the structure of the writing instrument which concerns on the 1st Embodiment of this invention. Sectional drawing which decomposes | disassembles and shows the structure of the writing instrument. Sectional drawing which expands and shows the principal part structure of the writing instrument. The side view which shows the structure of the shaft used for the writing instrument in a partial cross section. The top view which shows the structure of a coaxial body from an end surface. The top view which shows the structure of the outer cylinder used for the writing instrument from an end surface. Sectional drawing which shows the structure of the writing instrument which concerns on the 2nd Embodiment of this invention. Sectional drawing which decomposes | disassembles and shows the structure of the writing instrument.

(First embodiment)
Hereinafter, the writing instrument 1 which concerns on the 1st Embodiment of this invention is demonstrated using FIG. 1 thru | or FIG.
FIG. 1 is a cross-sectional view showing the configuration of the writing instrument 1 according to the first embodiment of the present invention, FIG. 2 is an exploded cross-sectional view showing the configuration of the writing instrument 1, and FIG. Fig. 4 is an enlarged cross-sectional view showing the engaging portion of the shaft body 21, the holder 23, and the knock body 25, Fig. 4 is a side view showing a part of the structure of the shaft body 21 used in the writing instrument 1, and Fig. 5 is a shaft view. The top view which shows the structure of the body 21 from an upper end surface, FIG. 6: is a top view which shows the structure of the outer cylinder 22 of the writing instrument 1 from an end surface.

  The writing instrument 1 is a so-called knock-type ballpoint pen, mechanical pencil, or the like. In the present embodiment, as shown in FIG. 1, the writing instrument 1 will be described using a knock-type ballpoint pen. The writing instrument 1 includes an outer member 10, a writing body 11, and a drive mechanism 12.

  The outer member 10 includes a shaft body 21, an outer cylinder 22, a holder 23, a tip 24, and a knock body 25. The outer member 10 is formed so that the writing body 11 can be accommodated, and the tip of the writing body 11 can be protruded and immersed.

  The shaft body 21 is formed of a resin material, and houses the writing body 11 and a part of the drive mechanism 12 therein. The shaft body 21 is formed in a cylindrical shape that is open at both ends. The shaft body 21 is provided at one end, an opening 31 through which the knock body 25 is reciprocally inserted, a female screw 32 provided at the other end and fastened to the tip 24, and And a stator 33 of a driving mechanism, which will be described later, provided on the inner peripheral surface and adjacent to the opening 31.

  The stator 33 is a cam groove group having a plurality of cam grooves formed at two heights (lengths). The stator 33 is formed such that the rotor 71 can be positioned by the height of a cam groove with which an engaging projection 73 of the rotor 71 described later is engaged.

  The outer diameter of the shaft body 21 is slightly smaller than the inner diameter of the outer cylinder 22. Further, as shown in FIGS. 2 to 5, the shaft body 21 is provided on one end side up to a predetermined distance from the end portion, specifically, the same distance as the length of the holder 23 in the axial direction. The small diameter part 35 and the annular convex part 36 provided in the outer peripheral surface of the one end side of the small diameter part 35 are provided.

  As shown in FIG. 4, the shaft body 21 is a part of the outer peripheral surface, specifically, one end side of the shaft body 21 and the other end portion of the small diameter portion 35. A notch 38 is provided in each of the end formed by the difference in outer diameter with respect to 35 and the other end of the shaft body 21. The cutout 38 is a groove cut out in a rectangular parallelepiped shape, and is formed so as to be engageable with an engagement portion 41 of the outer cylinder 22 described later.

  The outer cylinder 22 is formed in a cylindrical shape whose both ends are open, and is formed so that the shaft body 21 can be inserted therein. The outer cylinder 22 has an inner diameter slightly larger than the outer shape of the shaft body 21, and when the shaft body 21 is inserted, a slight gap is formed between the outer cylinder 22 and the outer peripheral surface of the shaft body 21. For example, the gap may be about 0.05 to 0.5 mm when paper such as paper or a seal can be inserted into the gap.

  As shown in FIGS. 2 and 6, the outer cylinder 22 includes an engagement portion 41 that is a rectangular projection that can be engaged with the cutout portion 38 of the shaft body 21 on the inner peripheral portion of one end portion. ing. The outer cylinder 22 is formed of a resin material. The outer cylinder 22 is formed to be transparent or colored transparent, for example, and is formed so that the shaft body 21 inserted therein can be visually recognized.

  The holder 23 includes a fixed ring 43 and a clip 44 provided on a part of the outer peripheral surface of the fixed ring 43. The fixed ring 43 is formed in an annular shape, and the inner diameter thereof is formed to be substantially the same as the small diameter portion 35 of the shaft body 21, and the length in the axial center direction is substantially the same as the length of the small diameter portion 35. Is formed. In addition, the fixed ring 43 includes an annular concave portion 45 that fits with the convex portion 36 on the inner peripheral surface thereof.

  The clip 44 includes a sandwiching body 46 and a biasing member 47 that connects the sandwiching body 46 to the fixed ring 43 and constantly biases the tip of the sandwiching body 46 toward the outer cylinder 22. The urging member 47 is a torsion spring, a U-shaped leaf spring, or the like. In the present embodiment, an example in which a torsion spring is used as the biasing member 47 is shown.

  The tip 24 is a resin molded product formed of a resin material. One end side of the large tip 24 is formed in a tapered shape, and is formed in a cylindrical shape having both ends opened. Note that one end side of the tip 24 forms the tip of the writing instrument 1.

  Specifically, the tip 24 is formed in a barrel 51 formed in a tapered cylindrical shape, a hole 52 formed in one end of the barrel 51, and an opening in the other end of the barrel 51. And a male screw portion 53 that engages with the female screw portion 32 of the shaft body 21, and a gripper 54 that is inserted into the trunk portion 51.

  As shown in FIG. 2, the body 51 forms a part of the distal end side of the outer shell member 10 and is formed so as to be able to insert and support the gripper 54. The hole 52 is formed in a part of the cursive body 11, more specifically, an inner diameter that is substantially the same diameter or slightly larger than an outer diameter of a chip 62 described later, and is formed so that the chip 62 can appear and be supported. An annular hole portion formed.

  The gripper 54 is formed of an elastomer resin such as silicon rubber. When the user of the writing instrument 1 grips the writing instrument 1, the gripper 54 is formed to fit the user's finger and generate an appropriate resistance (friction force) to prevent slipping. . Further, the gripper 54 is formed so that the outer cylinder 22 can be sandwiched between an end portion thereof and an end portion of the fixed ring 43 of the holder 23 when the male screw portion 53 is screwed to the female screw portion 32. Yes.

  The cursive body 11 is a core body such as a so-called refill. The writing body 11 includes an ink tube 61 and a writing unit 62. The ink tube 61 accommodates ink, gel ink, or the like therein. The ink tube 61 includes a seat portion 63 protruding from the outer surface in the middle portion thereof. The writing unit 62 is connected to one end of the ink tube 61 and is formed so that ink can be applied to paper sheets for writing on paper or the like. The writing unit 62 is a chip 62 that rotatably supports a ball at its tip.

  The knock body 25 is formed in a cylindrical shape in which one end side inserted through the opening 31 of the shaft body 21 is closed. The knock body 25 has a protrusion 65 that interferes with the inner end surface of the opening 31 of the shaft body 21 on the outer peripheral surface on the other end side.

  When the knock body 25 moves in the direction of exiting from the opening 31, the movement of the protrusion 65 is restricted by interference with the inner end face of the opening 31, and the detachment from the shaft body 21 is prevented. The knock body 25 is formed so that the rotor 71 can be pressed by being pressed by the user of the writing instrument 1.

  The drive mechanism 12 includes a knock body 25, a stator 33, a rotor 71, and an urging member 72. The drive mechanism 12 is a mechanism that causes the writing body 11 to reciprocate by being operated by the user, and to appear and disappear from the hole 52 of the tip 24.

  The rotor 71 is in contact with the other end of the ink tube 61 and has an engaging projection 73 on its outer peripheral surface that engages with the cam groove of the stator 33. The rotor 71 is fixed at two different positions in the axial direction of the shaft body 21 by the engagement protrusion 73 engaging with the cam groove. That is, when the rotor 71 is engaged with one cam groove, the tip 62 of the writing body 11 that contacts the rotor 71 is placed in the tip 24, and when the rotor 71 is engaged with another cam groove, 11 chips 62 are projected from the holes 52 of the tip 24.

  The urging member 72 is a coil spring disposed between the seat 63 of the ink tube 61 and the inner surface of the tip 24 of the tip 24. The urging member 72 urges the writing body 11 to the rotor 71.

  A method for assembling the writing instrument 1 configured as described above will be described below. First, as shown in FIG. 2, the writing instrument 1 sequentially inserts the knock body 25, the rotor 71, and the writing body 11 into the shaft body 21, inserts the biasing member 72 into the writing body 11, and sets the gripper 54. The inserted tip 24 is screwed into the shaft body 21.

  Next, the outer cylinder 22 is inserted into the shaft body 21 and the engaging portion 41 of the outer cylinder 22 is engaged with the notch portion 38 of the shaft body 21 to align the outer cylinder 22. Next, the fixing ring 43 of the holder 23 is press-fitted into the shaft body 21, and the convex portion 36 and the concave portion 45 are engaged to fix the holder 23 to the shaft body 21. As a result, the outer cylinder 22 is supported by the holder 23 and the notch 38 and the clamping portion 41 is supported and held between the holder 23 and the gripper 54.

  The outer cylinder 22 is sandwiched between the holder 23 and the gripper 54, but the engaging portion 41 is substantially supported by the holder 23 and the notch portion 38. For this reason, since the outer cylinder 22 is restricted from moving in the axial direction and in the rotational direction around the axial center, the outer cylinder 22 is detached from the shaft body 21 even if the tip 24 (gripper 54) is removed. There is nothing.

  According to the writing instrument 1 configured as described above, the outer member 10 has a double structure having a gap between the shaft body 21 and the outer cylinder 22. For this reason, the writing instrument 1 can provide a design or the like on one or both of the outer surface of the shaft body 21 and the outer cylinder 22 by making the outer cylinder 22 transparent or colored and transparent. Further, by setting the outer diameter of the shaft body 21 to be smaller than the inner diameter of the outer cylinder 22, a gap is formed between the shaft body 21 and the outer cylinder 22.

  That is, when the writing instrument 1 is provided with a design such as a company name, a product name, or a design such as a design or a mark such as a character (hereinafter referred to as “design”) on the outer member 10, the shaft body 21 and the outer cylinder are provided. 22 can be provided.

  For this reason, a design or the like may be provided only on the outer peripheral surface of the shaft body 21 and the outer cylinder 22 may be used to protect the design or the like due to use or the like. Moreover, it is set as the structure which provides a design etc. in both the shaft body 21 and the outer cylinder 22, and the structure which provides the design etc. which become the visual effect by the difference of a three-dimensional or height position may be sufficient.

  Furthermore, it is possible to arrange a design or the like in the gap between the shaft body 21 and the outer cylinder 22 and a sheet or a photograph in which an adhesive layer is provided on the back surface. That is, the writing instrument 1 can improve the degree of freedom for providing a design or the like by making the shaft body 21 and the outer cylinder 22 have a double structure having a gap.

  The design or the like is provided by screen printing, pad printing, transfer, printing by foil stamping, or the like. In this case, the shaft body 21 and the outer cylinder 22 can also be used for positioning printing of a design or the like by using the notch portion 38 and the engaging portion 41 for engaging with each other. In addition, the cam groove can be used for alignment of printing of a design or the like.

  As described above, by printing the design and the like by performing alignment, it becomes possible to easily combine the design of the cam groove, the design of the shaft body 21 and the outer cylinder 22 in the phase direction, and obtain visual effects by various printing. It is also possible.

  Further, the writing instrument 1 is configured to fix the holder 23 to the shaft body 21 after engaging the engaging portion 41 of the outer cylinder 22 with the notched portion 38 of the shaft body 21, so that the movement of the outer cylinder 22 is notched portion 38. And the holder 23. That is, the outer cylinder 22 is not detached toward the distal end side due to the engagement of the notch portion 38 and the engaging portion 41 even if the tip 24 and the gripper 54 are removed. Further, since the writing instrument 1 is restricted from moving toward the knock body 25 by the holder 23 in which the outer cylinder 22 is fixed to the shaft body 21, the outer cylinder 22 is not detached from the knock body 25 side.

  As described above, even if the outer cylinder 22 is separated from the shaft body 21, it is possible to prevent loss due to the outer cylinder 22 being detached. The writing instrument 1 may have a simple configuration in which the shaft body 21 is inserted through the outer cylinder 22 and can prevent an increase in manufacturing cost.

  As described above, according to the writing instrument 1 according to the embodiment of the present invention, a part of the outer member 10 has a double structure in which the shaft body 21 and the outer cylinder 22 are doubled, and the shaft body 21 and By providing a gap between the outer cylinders 22, a high degree of freedom is provided, and a design or the like can be provided with a high degree of freedom.

(Second Embodiment)
Next, a writing instrument 1A according to a second embodiment of the present invention will be described with reference to FIGS. Note that in the writing instrument 1A according to the second embodiment, the same components as those of the writing instrument 1 according to the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 7 is a cross-sectional view showing the configuration of the writing instrument 1A according to the second embodiment, and FIG. 8 is an exploded cross-sectional view showing the configuration of the writing instrument 1A.

  As shown in FIGS. 7 and 8, the writing instrument 1 </ b> A includes an outer member 10 </ b> A, a writing body 11, and a drive mechanism 12.

  The outer member 10 </ b> A includes a shaft body 21, an outer cylinder 22, a holder 23, a tip 24, and a knock body 25, similarly to the outer member 10 of the writing instrument 1 described above.

  Such a writing instrument 1 </ b> A is assembled so that the engaging portion 41 of the outer cylinder 22 engages with the cutout portion 38 on the distal end side of the shaft body 21. Specifically, referring to FIG. 8, first, the writing instrument 1 </ b> A sequentially inserts the knock body 25, the rotor 71, and the writing body 11 into the shaft body 21, and inserts the biasing member 72 into the writing body 11. At the same time, the holder 23 is fixed to the shaft body 21. Next, the outer cylinder 22 is inserted into the shaft body 21 from the distal end side, and the engaging portion 41 of the outer cylinder 22 is engaged with the notch portion 38 on the distal end side of the shaft body 21 for alignment. Next, the outer end 22 is sandwiched between the gripper 54 and the holder 23 by screwing and fixing the tip 24 into which the gripper 54 is inserted to the shaft body 21, and the writing instrument 1A is assembled.

  The writing instrument 1A configured as described above allows the outer cylinder 22 to be inserted from the distal end side of the shaft body 21, so that the outer cylinder 22 is fixed by the gripper 54 and the holder 23, and the outer cylinder 22 becomes removable. That is, the outer cylinder 22 can be detached from the distal end side by removing the tip 24 and the gripper 54 from the shaft body 21 and can be restricted from moving toward the knock body 25 by the holder 23. Further, by engaging the engaging portion 41 with the notch portion 38, the outer cylinder 22 can be aligned, and the rotation in the rotation direction around the axis of the outer cylinder 22 can be restricted. Thus, the writing instrument 1A can remove the outer cylinder 22 as necessary.

  For example, when providing paper sheets in the gap between the shaft body 21 and the outer cylinder 22, the writing instrument 1 </ b> A can easily replace the paper sheets by removing the outer cylinder 22. Specifically, it becomes possible to replace a picture of a pet dog or a child in the gap between the shaft body 21 and the outer cylinder 22 depending on the mood at that time.

  Further, for example, when a design or the like whose appearance is changed is provided by a combination of designs or the like described in the shaft body 21 and the outer cylinder 22, the outer cylinder 22 is removed, and the notch 38 and the engaging portion 41 are removed. It is possible to change the appearance by changing the engagement position. Specifically, the outer cylinder 22 is colored with an opaque color except for a part thereof, the part is a transparent window portion, and the position of the outer cylinder 22 in the rotational direction is changed to thereby change the axis. Any of a plurality of designs and the like written on the body 21 can be made visible.

  Further, the outer cylinder 22 can be arbitrarily attached and detached with different colors, shapes, designs, and the like. That is, the writing instrument 1 </ b> A can arbitrarily change the outer cylinder 22. In addition, it is possible to provide a design or the like that can obtain various visual effects.

  As described above, according to the writing instrument 1 </ b> A according to the second embodiment of the present invention, the outer cylinder 22 is inserted into the shaft body 21 from the distal end side and fixed by the gripper 54 and the holder 23. 22 becomes detachable and has a high degree of freedom, and a design or the like can be provided with a high degree of freedom.

  The present invention is not limited to the above embodiment. For example, in the above-described example, the shaft body 21 of the writing instrument 1 or 1A is on one end side, the end surface formed at the other end of the small diameter portion 35, and the notch 38 on the other end. However, the present invention is not limited to this.

  For example, as in the writing instrument 1 described above, in the configuration in which the outer cylinder 22 is always fixed by the shaft body 21 and the holder 23, the shaft body 21 is configured such that the notch 38 is provided only on the end surface portion on one end side of the shaft body 21. Similarly, in the configuration in which the outer cylinder 22 is detachable as in the writing instrument 1A, the cutout portion 38 may be provided only at the other end of the shaft body 21.

  Moreover, although the writing instrument 1 and 1A demonstrated the structure using a ball-point pen, it is not limited to this, A mechanical pencil may be sufficient as mentioned above, for example, the felt etc. which the fluorescent paint contained as the writing body 11 etc. A highlighter pen or the like may be used.

  In the above-described example, the writing instrument 1 or 1A has been described as the so-called knock-type drive mechanism 12. However, the present invention is not limited to this, and if the outer member 10 has a double structure, it is a slide-type drive mechanism. It may also be another configuration. That is, as long as the writing instrument 1 or 1A is a configuration in which a part of the outer member 10 has a double structure and has a high degree of freedom for providing a design or the like, other configurations can be appropriately set.

  Furthermore, although the writing instrument 1 and 1A demonstrated the structure which has the gripper 54 in the example mentioned above, it is not limited to this, For example, a front end is made into the external shape equivalent to the gripper 54, and the outer cylinder 22 by the said front end May be configured to be fixed. In addition, various modifications can be made without departing from the scope of the present invention.

  DESCRIPTION OF SYMBOLS 1, 1A ... Writing instrument, 10 ... Outer member, 10A ... Outer member, 11 ... Writing body, 12 ... Drive mechanism, 21 ... Shaft body (cylindrical member), 22 ... Outer cylinder (cylindrical member), 23 ... Holder, 24 ... Large tip, 25 ... Knock body, 31 ... Opening part, 32 ... Female screw part, 33 ... Stator, 35 ... Small diameter part, 36 ... Convex part, 38 ... Notch part, 41 ... Engagement part, 43 ... Fixed Ring, 44 ... Clip, 45 ... Recess, 46 ... Holding body, 47 ... Biasing member, 51 ... Body, 52 ... Hole, 53 ... Male screw part, 54 ... Gripper, 61 ... Ink tube, 62 ... Writing part (Chip), 63 ... seat, 65 ... projection, 71 ... rotor, 72 ... biasing member, 73 ... engagement projection.

Claims (4)

A cursive body having a writing section for writing at the tip;
The tip is formed in a tapered cylindrical shape, and the writing body is accommodated therein, and the hole that supports the writing portion formed at the tip and two different diameters that form a part thereof. An outer shell member that is formed so as to be visible from the outer cylindrical member;
A drive mechanism for causing the tip of the cursive body to appear and disappear from the outer member;
Writing instrument characterized by comprising. The outer member is
A shaft body that is formed in a cylindrical shape and is the cylindrical member that houses a part of the writing body;
A tip provided on one end of the shaft, storing the other part of the writing body, and having the hole at its tip;
An outer cylinder which is the cylindrical member which is inserted into the shaft body and whose one end is in contact with the tip;
A holder that is fixed to the other end side of the shaft body and is in contact with the outer cylinder so as to sandwich the outer cylinder with the tip;
The writing instrument according to claim 1, comprising: The shaft body has a notch on the other end side,
The writing instrument according to claim 2, wherein the outer cylinder has an engaging portion that engages with the notch at an end thereof. The shaft body has a notch at one end thereof,
The writing instrument according to claim 2, wherein the outer cylinder has an engaging portion that engages with the notch at an end thereof.

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