JP2010247464A - Cap-type writing implement and connection member thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cap-type writing implement which can be connected to the vertical/horizontal directions as well as parallel connection, and further to provide a connection member for connecting the implements to place writing parts on both ends. <P>SOLUTION: The cap-type writing implement 1 is provided with projecting parts 21a, 22a and recessed parts 23a, 24a. The projecting parts and the recessed parts are fitted in an uneven manner. The fitting is set to be fitting force of a removable degree, which means, a plurality of the cap-type writing implements 1 can be vertically connected as well as to the parallel direction by the projecting parts and the recessed parts. Further, a projecting part 5a provided for a tail plug 5 and a recessed part 26a provided on a front end surface of a cap 2 are set to be removable and fittable as well. Accordingly, the cap-type writing implements 1 can be serially connected. Further, the cap-type writing implements 1 can be connected to have the writing parts on both ends by the connection member for connecting the projecting parts 5a of the tail plugs 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a writing instrument capable of connecting the same or other kinds of writing instruments in series or in parallel.

  Conventionally, when connecting many writing tools of the same type or other types and storing or carrying them, there is a connecting structure of writing tools that has an effect of preventing the loss of some of the writing tools. Proposed.

  For example, the writing instrument disclosed in Patent Document 1 uses a clip provided on the outer periphery of a cap attached to the writing instrument as an engaging protrusion, and can be fitted or engaged with the clip that is the engaging protrusion. The formed engagement recess is provided on the outer periphery of the cap. That is, the cap has a structure having both an engagement protrusion (clip) and an engagement recess. Therefore, the engagement protrusion (clip) of the cap can be engaged with the engagement recess of another cap having the same structure. Since this cap is a cap (lid) of a writing instrument such as a ballpoint pen or a mechanical pencil, as a result, many writing instruments of the same type or other types can be connected.

JP 2006-305829 A

  In the prior art disclosed in Patent Document 1, there is a description that the cap is provided with an engaging protrusion and an engaging recess at an arbitrary location. In the description of the specific embodiment, the engagement protrusion and the engagement recess are provided opposite to each other in the vicinity of the end of the cylindrical cap. In this case, the connection can be performed only in the direction in which the caps (writing tools) are arranged in parallel, and the connection cannot be performed in a form in which several pieces overlap (bundled). Therefore, it is inconvenient to store when the storage space is limited, and may be inconvenient when stored in a bag or the like when being carried.

  Furthermore, since the connection of the writing tools is limited to parallel, even if the effect of preventing the loss of the writing tools is exhibited, it is unsatisfactory in that it enjoys the act of connecting.

  The present invention provides a shaft cylinder formed in a quadrangular prism shape, and a quadrangular prism shape, and the four outer peripheral surfaces of the quadrangular column are continuously flat with the corresponding outer peripheral surface of the shaft cylinder when connected to the shaft cylinder. A cap that is formed to be a surface, and two adjacent surfaces of the outer peripheral surface of the cap are provided with first engaging portions, respectively, and the other two adjacent portions of the outer peripheral surface of the cap The cap-type writing instrument is provided with a first engaged portion that is detachably formed on the surface of the first engaging portion.

  In the present invention, the cap and the shaft tube are formed in a quadrangular prism shape. The cap has an engagement portion on two adjacent surfaces of the four outer peripheral surfaces, and an engaged portion on the other two adjacent surfaces. The engaging portion and the engaged portion are detachable. Further, the shaft cylinder of the writing instrument body (for example, a ballpoint pen or a mechanical pencil) is also formed in a quadrangular prism shape, and its outer peripheral surface is configured to form a flat surface continuous with the outer peripheral surface of the cap when the cap is mounted. ing.

  Therefore, in the cap-type writing instrument of the present invention, two or more writing instruments can be connected by engaging the engaging part and the engaged part. In this case, since two engaging portions and two engaged portions are provided in one cap, it is possible to connect not only in parallel planar connection but also in upper, lower, left and right. Furthermore, not only the outer surface of the cap-type writing instrument and the outer peripheral surface of the shaft cylinder but also adjacent surfaces of the connected cap-type writing instruments can form a continuous flat surface. Therefore, it can be formed in a block shape having a beautiful appearance. Furthermore, it can be stored flexibly even in a limited storage space. In addition, it is also convenient when carrying. Moreover, the user can also enjoy various connection forms with different variations.

It is a figure which shows embodiment of the cap type writing instrument which concerns on this invention, (a) is a front view, (b) is a left view, (c) is a right view, (d) is a top view, (e) is a figure. A bottom view, (f) is a rear view, (g) is a sectional view taken along line gg of (b) showing an outline of the internal mechanism, (h) is a sectional view taken along line hh of (a), showing the outline of the internal mechanism, It is. The pen tip which is an example of the writing instrument main body of the cap-type writing instrument which concerns on this invention is a ball-point pen whose arrow tip is an arrow type, (a) is a front view, (b) is a left view, (c) is a right view, (d ) Is a plan view. The rear view appears symmetrically with the front view and is therefore omitted. Since the bottom view appears the same as the plan view, it is omitted. It is a marking pen which is an example of the writing instrument main body of the cap type writing instrument which concerns on this invention, (a) is a front view, (b) is a left view, (c) is a right view, (d) is a top view, e) is a bottom view. The rear view appears symmetrically with the front view and is therefore omitted. The pen point which is an example of the writing instrument main body of the cap-type writing instrument which concerns on this invention is a ball-point pen whose needle point is a needle type, (a) is a front view, (b) is a left view, (c) is a right view, (d ) Is a plan view. The rear view appears symmetrically with the front view and is therefore omitted. Since the bottom view appears the same as the plan view, it is omitted. BRIEF DESCRIPTION OF THE DRAWINGS It is a mechanical pencil which is an example of the writing instrument main body of the cap type writing instrument which concerns on this invention, (a) is a front view, (b) is a left view, (c) is a right view, (d) is a top view. . The rear view appears symmetrically with the front view and is therefore omitted. Since the bottom view appears the same as the plan view, it is omitted. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure showing the form which connected the cap type writing instrument which concerns on this invention in parallel, (a) is a front view, (b) is a left view, (c) is a right view, (d) is a top view, (E) is a bottom view and (f) is a rear view. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure showing the form which connected the cap type writing instrument which concerns on this invention up and down, right and left, (a) is a front view, (b) is a left view, (c) is a right view, (d) is a top view, (E) is a bottom view and (f) is a rear view. It is the front view which connected two cap type writing instruments which concern on this invention in series. It is the front view which connected two cap type writing instruments which concern on this invention through the connection member.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the forward direction refers to the direction of the pen tip side.

  FIG. 1 shows a cap-type writing instrument 1 according to the present invention. 2 is a cap and 3 is a writing instrument body. The present embodiment relates to a so-called arrow-type ballpoint pen that protrudes from the tip of the writing instrument body 3.

  The cap 2 is formed in a quadrangular prism shape as a whole. On the outer periphery of the cap 2, four outer peripheral surfaces 21, 22, 23, and 24 are formed. On one adjacent outer peripheral surfaces 21 and 22, convex portions 21 a and 22 a are provided as convex portions as first engaging portions. On the other adjacent outer peripheral surfaces 23 and 24, concave portions 23a and 24a formed so as to be able to be fitted to the convex portions are provided as first engaged portions. The fitting of the convex portions 21a and 22a and the concave portions 23a and 24a, which are the first engaging portion and the first engaged portion, is a press-fitting fitting, and has a fitting force that can be easily attached and detached manually. It is set to be. The convex portions 21a and 22a and the concave portions 23a and 24a are formed in a square shape in plan view. However, the present invention is not limited to this, and a circular shape, an elliptical shape, and the like. Polygonal shapes can be adopted as appropriate. However, in the present invention, since the shaft cylinder 4 (described later) of the cap 2 and the writing instrument body 3 is formed in a quadrangular prism shape, as shown in the present embodiment, the convex portions 21a, 22a and the concave portion 23a are arranged accordingly. , 24a is preferably formed in a square shape in plan view.

  The cap 2 is provided with an opening 25 that opens to the rear end side. The opening 25 has an inner circumference formed in an annular shape (not shown). And the inner periphery of the opening part 25 is set so that attachment with the outer periphery of the cyclic | annular part 45 mentioned later provided ahead of the axial cylinder 4 is possible. For example, a convex crossing fitting portion provided in an annular shape can be provided on the inner peripheral surface of the opening 25, and a plurality of crossing fitting portions can be provided radially on the outer periphery of the annular portion 45 around the axis. . Thereby, the riding over fitting with respect to the axial cylinder 4 (annular part 45) of the cap 2 is implement | achieved.

  Further, the front end surface 26 of the cap 2 is provided with a concave portion 26a serving as a second engaged portion. The concave portion 26a is set so as to be press-fit capable of fitting with a convex portion 5a, which is a second engaging portion provided in the tail plug 5 described later, with a fitting force that is detachable manually.

On the other hand, the writing instrument main body 3 includes a shaft tube 4, a tail plug 5 and a center core 6 coupled to the rear end of the shaft tube 4. The shaft cylinder 4 is formed in a quadrangular prism shape. Each outer peripheral surface 41, 42, 43, 44 of the shaft cylinder 4 is formed with a flat surface that is continuous with the outer peripheral surfaces 21, 22, 23, 24 of the cap 2 when the cap 2 is connected. Specifically, for example, in FIG. 1A, the outer peripheral surface 21 corresponding to the upper surface of the cap 2 and the outer peripheral surface 41 corresponding to the upper surface of the shaft cylinder 4 corresponding to the outer peripheral surface 21 are the cap 2 and the shaft. Although there is a minute concave portion due to R chamfering at the connecting portion of the cylinder 4, it can be said that both form a continuous flat surface. That is, the “continuous flat surface” allows the presence of a minute concave portion due to the R chamfering. Similarly, the outer peripheral surfaces 22, 23, 24 of each cap 2 also form a flat surface in which the corresponding outer peripheral surfaces 42, 43, 44 of the shaft cylinder 4 are continuous.
Note that a space having a circular cross section (that is, a cylindrical shape) is formed inside the shaft cylinder 4.

  An annular portion 45 formed to project in an annular shape is formed at the distal end portion of the shaft tube 4. Further, the front end portion 46 projects forward in a substantially conical shape from the inside of the annular portion 45. A gap is formed between the annular portion 45 and the leading end portion 46 at a predetermined interval. This gap provides flexibility to the annular portion 45. Therefore, the annular portion 45 bends due to the above-described climbing operation of the climbing fitting portion when the cap 2 is attached and detached. Thereby, the attachment and detachment of the cap 2 are further facilitated. This gap is formed in an annular shape. Furthermore, a hole 46 a into which a so-called ballpoint pen tip 61, which is a pen tip portion of the core 6, is formed in the tip opening portion 46.

  A tail plug 5 is provided at the rear end of the shaft cylinder 4. A fitting portion 51 protrudes forward from the tail plug 5. The outer periphery of the fitting part 51 is formed in a circular shape. On the other hand, the inner periphery of the rear end opening 47 of the shaft cylinder 4 is formed in a cylindrical shape. The fitting portion 51 and the opening 47 of the shaft tube 4 are press-fitted and fitted with a predetermined fitting force.

On the other hand, the fitting part 51 has a rib 51a erected inward. A plurality of ribs 51 a are provided radially with respect to the axis of the fitting portion 51. Then, the rear end portion of the core 6 is press-fitted into a space formed around the axis by the plurality of ribs 51a, whereby the core 6 is held and supported. Further, the rib 51a is provided with a step portion 51b, and the rearward movement of the core 6 is restricted. A gap is formed between the plurality of ribs 51a. Thereby, the distribution of the air supplied to the rear end of the core 6 (air required for air exchange accompanying ink discharge) is ensured.
A minute gap is formed between the outer periphery of the ball-point pen tip 61 and the hole 46a, and the inflow of air required for air exchange is secured inside the shaft cylinder 4.

The fitting portion 51 is continuously connected to the flange portion 52 having a square shape when viewed from the side while forming a stepped portion with a reduced diameter. By this step portion, the forward movement of the tail plug 5 is restricted. Further, a quadrangular prism-shaped convex portion 5 a is set up from the flange portion 52 toward the rear, and has a length shorter than the length of the four sides of the flange portion 52. As described above, the convex portion 5a is set so as to be press-fitted and detachable manually by the concave portion 26a provided on the front end face 26 of the cap 2.
In addition, the four sides of the flange portion 52 have the same length as the four sides in the cross section of the shaft tube 4, and both are congruent.

  In addition, in the present Example, although the convex part 5a and the concave part 26a which are the 2nd engaging part and the 2nd to-be-engaged part are formed in planar view substantially square shape, it is limited to this. Alternatively, it may be a circular shape in plan view, an elliptical shape, or another polygonal shape. However, in the present invention, the cap 2 and the shaft cylinder 4 are formed in a rectangular column shape in which each corresponding outer peripheral surface is a continuous flat surface, and the outer shape of the cross section is a square shape. It is preferable in terms of design if the shape portion 5a and the recessed portion 26a are formed in a square shape in plan view. Further, when the other convex portions 21a and 22a and the concave portions 23a and 24a provided on the cap 2 are formed in a square shape, the embodiment is further preferable in terms of design.

  In addition, the cap type writing instrument 1 shown in FIG. 1 is a ball-point pen in which the pen tip of the writing instrument body 3 is an arrow type. Each side view of the writing instrument body 3 is shown in FIG. The writing instrument body 3 can be changed to other types of writing instruments by changing its internal structure. For example, each side view of the writing instrument body 3a in the case of a marking pen is shown in FIG. Similarly, FIG. 4 shows a side view of the writing instrument main body 3b when the pen point is a needle-type ballpoint pen, and FIG. 5 shows a side view of the writing instrument main body 3c when it is a mechanical pencil. The cap 2 can be adapted to be common to these other writing instrument bodies 3a, 3b, 3c.

  In addition, the cap 2 adapted to other types of writing instrument main bodies 3a, 3b, 3c can appropriately change the internal structure (for example, the inner peripheral fitting structure of the opening 25) depending on the type of the writing instrument main body. . For example, when the cap 2 is fitted to the writing instrument main body 3a of the marking pen, a blocking portion is appropriately disposed on the inner peripheral surface of the opening 25 and the outer peripheral surface of the annular portion 45 together with this to prevent volatilization of ink at the pen tip. Can be provided. Even if there is such a change, the shape appearing in the appearance and the first and second engaging portions and the first and second engaged portions are formed to be the same among the plurality of cap-type writing instruments. .

  In the cap-type writing instrument configured as described above, when there are a plurality of the cap-type writing instruments, for example, the convex portion 21a according to one cap-type writing instrument is connected to the concave portion 23a according to the other cap-type writing instrument. In addition, for example, the convex portion 22a of another cap-type writing instrument can be connected to the concave portion 24a of the other cap-type writing instrument. Furthermore, the cap-type writing instrument 1 can be rotated 90 degrees and connected at right angles.

  In this way, the cap 2 is formed in the same manner, and the writing instrument body (3, 3a, 3b, 3c) can be appropriately selected as a ballpoint pen, a marking pen, a mechanical pencil, etc., and these are connected and stored together. Or can be carried. Moreover, since it can be connected not only in parallel but also up, down, left and right, and further rotated, even in a limited storage space, it can be stored in accordance with the space, and various You can also enjoy combining the form itself.

  Further, even when connected, the cap and the shaft tube form a flat surface continuous with the other cap-type writing instrument (cap and shaft tube), which is preferable in appearance.

  Further, as in the present embodiment, the first engaging portion and the first engaged portion are formed as convex portions 21a and 22a and concave portions 23a and 24a, and the second engaging portion and the second engaged portion are formed. Are formed as the convex portion 5a and the concave portion 26a, so that the attachment / detachment operation can be easily performed only by fitting the concaves and convexes to each other.

  The example which combined the cap type writing instrument 1 which concerns on this invention is shown in FIG. In the figure, a plurality of cap-type writing instruments 1 are connected in parallel. In this combination example, the writing instrument body is a ballpoint pen (3), a marking pen (3a), a ballpoint pen (3b), and a mechanical pencil (3c). However, the present invention is not limited to this, and one or more of these may be appropriately selected and combined. Furthermore, in this figure, four cap-type writing instruments are combined, but if they are two or more, they can be combined in the same manner.

  FIG. 7 shows an example in which the cap-type writing instrument 1 according to the present invention is combined vertically and horizontally. In this case as well, the same kind or other kinds of writing instruments can be appropriately selected and combined.

  FIG. 8 is a view showing a form in which the convex portion 5a of the tail plug 5 and the concave portion 26a provided on the front end face 26 of the cap 2 are combined in the front-rear direction. As a result, the overall length becomes long, so that even when the cap-type writing instrument 1 according to the present invention is set short, writing becomes easy. It is also possible to combine them in parallel as shown in this figure and connect them in parallel (similar to FIG. 6), or connect vertically and horizontally (similar to FIG. 7).

  FIG. 9 is a view when the cap-type writing instrument 1 is connected by the connecting member 7. The connecting member 7 is formed in a quadrangular prism shape as a whole. And the to-be-engaged part (concave part 7a) engaged with the convex-shaped part 5a which is the 2nd engaging part of the tail plug 5 is each formed in two surfaces which oppose. The engagement is set to a detachable fitting force by press fitting. By fitting the convex portion 5a to the concave portion 7a, the two cap-type writing instruments 1 can be connected to each other as shown in FIG. For example, the writing instrument body of one cap-type writing instrument 1 can be a ballpoint pen (writing instrument body 3), and the other can be a marking pen (writing instrument body 3a).

  In this way, by connecting the cap-type writing instrument 1 with the connecting member 7, it is possible to set the same type or another type of writing instrument at both ends of the writing unit side. is there. Further, when the cap-type writing instrument 1 is connected back and forth (see FIG. 8) and the connection using the connecting member 7 (see FIG. 9), the former is when the cap-type writing instrument 1 connected to the tail plug 5 is used. In the case where the writing instrument body 3 is simply used separately or used for a long time, there is a trouble that the front and rear must be switched and connected, whereas the latter does not require such trouble.

  In addition, the outer peripheral surface of the connection member 7 forms a flat surface continuous with the outer peripheral surfaces 41, 42, 43, 43 of the corresponding shaft cylinder 4 through the flange portion 52. Therefore, it has continuous integration with the cap-type writing instrument 1 also in appearance and does not impair the beauty.

  As mentioned above, although the Example of this invention was described in detail, this invention is not limited to this, In the range which does not change the summary of this invention, it can change suitably.

  For example, in this embodiment, the shaft tube 4 and the tail plug 5 are separate parts, and the convex portion 5a serving as the second engaging portion is formed on the tail plug 5, but the second engagement is integrally formed at the rear end of the shaft tube 4. You may provide the convex-shaped part used as a joining part. In addition, in this embodiment, the first engaging portion, the second engaged portion, the second engaged portion, and the second engaged portion are engaged by fitting the concave and convex shapes. It may be a combination. Furthermore, you may form so that a 1st engaging part and a 2nd to-be-engaged part and a 2nd engaging part and a 1st to-be-engaged part may engage. Furthermore, as for the uneven shape in the present embodiment, the uneven relationship may be reversed. In addition, various other writing tools such as a correction pen and a fountain pen can be applied as examples of the writing tool body.

DESCRIPTION OF SYMBOLS 1 Cap type writing instrument 2 Cap 3 Writing instrument main body 21, 22, 23, 24 The outer peripheral surfaces 21a and 22a of a cap The convex-shaped parts 23a and 24a which are 1st engaging parts The concave-shaped part 26a which is 1st to-be-engaged parts Recessed portion 4 that is an engaging portion Axle tube 41, 42, 43, 44 Outer peripheral surface 5 of shaft tube 5 Tail plug 5a Convex portion 6 that is a second engaging portion 6

Claims (5)

A shaft cylinder formed in a quadrangular prism shape;
A quadrangular prism is formed, and the four surfaces of the outer periphery of the rectangular column are provided with a cap formed so as to be a continuous flat surface with a corresponding outer peripheral surface of the axial tube when connected to the axial tube,
A first engaging portion is provided on each of two adjacent surfaces of the outer peripheral surface of the cap,
A cap-type writing instrument, wherein two other adjacent surfaces of the outer peripheral surface of the cap are each provided with a first engaged portion that is detachably formed with the first engaging portion. The cap-type writing instrument according to claim 1,
A second engagement portion provided at a rear end of the shaft tube;
A cap-type writing instrument provided on a front end surface of the cap, wherein the second engaged portion is formed so as to be detachable from the second engaging portion. The cap-type writing instrument according to claim 1 or 2, wherein the first engaging portion is formed in a convex shape, and the first engaged portion is formed in a concave shape. The cap-type writing instrument according to claim 2, wherein the second engaging portion is formed in a convex shape, and the second engaged portion is formed in a concave shape. Formed in the shape of a square pillar,
On each of the two faces facing each other, there are provided connection engaged parts formed detachably with the second engagement part,
The four surfaces of the outer periphery of the quadrangular prism other than the surface provided with the engaged portion are formed so as to be a continuous flat surface with the outer peripheral surface of the corresponding shaft tube when connected to the shaft tube. A connecting member for a cap-type writing instrument for connecting the cap-type writing instrument according to claim 2.

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