JP4632051B2 - Multi-drawing pen - Google Patents

Description

  The present invention relates to a multi-drawing pen body that is incorporated in a writing instrument body and enables a plurality of lines having a predetermined line width such as correction lines to be simultaneously written.

As a prior art of a multi-drawing pen body capable of simultaneously writing a plurality of lines having a predetermined line width, a synthetic resin nib disclosed in Patent Document 1 is disclosed.
That is, the synthetic resin nib disclosed in Patent Document 1 has a plurality of ink passages extending in the axial direction, a cavity hole through which ink is not led out, and a flat writing tip at the tip. . To describe this nib in detail, in the cross-sectional shape shown in FIG. 10, the long side is located at the portion surrounded by the outer peripheral wall 6 formed by the pair of long side outer walls 4, 4 and the pair of short side outer walls 5, 5. By forming a trunk-like rib 22b extending in the direction and a plurality of branch-like ribs 22a, 22a extending in the short-side direction connected to the trunk-like rib 22b and the long-side outer wall 4 so as to intersect the trunk-like rib 22b A plurality of independent ink passages 20 and 20 formed in a substantially quadrilateral shape and a substantially quadrangular cavity 21 through which ink is not guided are alternately arranged along the long side direction.
When writing with this synthetic resin nib, ink is led out from a plurality of independent ink passages 20 and 20 and ink is not led out from the cavity holes 21 and 21 as shown in FIG. Only the width of each of the cavity holes 21 and 21 is removed and written in a striped pattern.
Utility Model Registration No. 2545908

  However, in the pen tip made of synthetic resin disclosed in Patent Document 1, as shown in FIG. 10, one of the branch ribs 22a and 22a facing each cavity hole 21 through which ink is not guided is one branch rib 22a. Is bent so as to protrude into the cavity 21, and when writing with this pen tip, the line, space, and boundary are not clear, and it is difficult to obtain a uniform line width.

  The present invention has been made in view of this point, and an object of the present invention is to provide a multi-drawing pen body that can clearly write a plurality of lines.

The present invention provides, as means for solving the above-mentioned problems, the invention described in claim 1 is a pen body made of a synthetic resin for supplying ink in an ink storage section to a paper surface, the pen body The body is divided into a substantially rectangular outer peripheral wall formed by a pair of long sides and a pair of short sides, and the inside of the outer peripheral wall is divided so as to divide the long sides facing each other. Surrounded by a plurality of partition walls extending in the longitudinal direction, a cavity surrounded by the outer peripheral wall and the partition wall, in which ink extending in the longitudinal direction of the pen body is not guided, and the outer peripheral wall and the partition wall A plurality of ink outlet cavities extending in the longitudinal direction of the pen body, and the ink outlet cavities are provided therein with a plurality of branch walls thinner than the partition wall, and capillary action for guiding ink The cavity and the cavity The Nki derivation cavity, and is characterized in that it is arranged along the long side of the outer peripheral wall alternately.
Accordingly, in the first aspect of the present invention, the plurality of ink outlet cavities through which ink is guided and the cavities through which ink is not guided are alternately arranged along the long side of the outer peripheral wall. A plurality of lines can be simultaneously written, and the partition wall facing each cavity extends substantially linearly without being bent so as to protrude into each cavity. The boundary with the space becomes clear and a plurality of lines are clearly written. Further, since each ink outlet cavity has a plurality of branch walls that perform capillary action for guiding ink, the ink in the ink reservoir can be efficiently supplied from the ink outlet cavities to the paper surface.

The invention described in claim 2 is the invention described in claim 1, wherein the outer peripheral wall and the partition wall are configured by wall bodies having substantially the same thickness, and the branch wall of the ink outlet cavity is The wall body has a thickness of about one-half of the thickness of the wall body.
Therefore, in the invention of claim 2, since the partition wall has substantially the same thickness as the outer peripheral wall, the partition wall facing each cavity is folded so as to protrude into each cavity after molding. Prevent to tune.

The invention described in claim 3 is the invention described in claim 1 or 2, wherein the branch wall of the ink outlet cavity extends from the long side of the outer peripheral wall along the short side of the outer peripheral wall, and is free. It is characterized by having an end.
Therefore, in the invention of claim 3, since the branch wall in each ink outlet cavity extends from the long side to the short side of the outer peripheral wall and its tip is a free end, further capillary action is performed by this branch wall. Rarely, ink can be supplied to the paper more efficiently, and multiple lines are clearly written.

The invention described in claim 4 is the invention described in claim 1 or 2, wherein the branch wall of the ink outlet cavity is between the outer peripheral wall and the partition wall or between the partition wall and the partition wall. It extends from the connecting wall formed along the long side, extending toward the long side of the outer peripheral wall, and has a free end.
Accordingly, in the invention of claim 4, the branch wall in each ink outlet cavity extends from the connecting wall toward the long side of the outer peripheral wall, and its distal end is a free end. It is able to supply ink to the paper more efficiently, and multiple lines are clearly written.

  According to the present invention, a plurality of ink outlet cavities extending in the longitudinal direction of the pen tip surrounded by the outer peripheral wall and the partition wall, and ink extending in the longitudinal direction of the pen tip surrounded by the outer peripheral wall and the partition wall are guided. Non-breakable cavities are alternately arranged along the long side of the outer peripheral wall, and a plurality of branch walls thinner than the partition wall thickness are provided in each ink outlet cavity to perform capillary action to guide ink In addition, the partition wall facing each cavity does not bend so as to extend linearly along the short side of the outer peripheral wall and protrude into each cavity. By sliding, the boundary between the line and the space becomes clear, and a plurality of lines can be written clearly.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to FIGS. In addition, the same member as a prior art example is demonstrated using the same code | symbol.
As shown in FIG. 2, a multi-drawing pen body 1, 1a, 1b, 1c according to an embodiment of the present invention is a synthetic resin, for example, a polyoxymethylene or polyamide of a thermoplastic resin having flexibility and toughness. Polyvinylidene fluoride, EVA resin (ethylene / vinyl acetate copolymer), or thermoplastic elastomer such as polyolefin elastomer, polyester elastomer, polyamide elastomer, etc. Is. The pen bodies 1, 1 a, 1 b, and 1 c are incorporated in the writing instrument body 2 such that the writing surface 3 at the tip is exposed from the end of the writing instrument body 2, and are stored in the writing instrument body 2. Ink (not shown) is supplied to the paper surface.

3, 5, 6, and 8 are cross-sectional views of the multiline drawing pen bodies 1, 1 a, 1 b, and 1 c according to the embodiment of the present invention, and FIG. 3, FIG. 5, FIG. As can be seen from FIG. 8, the multi-drawing pen bodies 1, 1 a, 1 b, 1 c according to the embodiment of the present invention are composed of a pair of long-side outer walls 4, 4 and a pair of short-side outer walls 5, 5. The substantially rectangular outer peripheral wall 6 and the inside of the outer peripheral wall 6 are partitioned so as to divide the opposed long side outer walls 4 and 4, and a plurality of pen bodies 1, 1 a, 1 b, and 1 c extend in the longitudinal direction. A cavity 8 surrounded by the partition walls 7, 7, the outer peripheral wall 6 and the partition wall 7, extending in the longitudinal direction of the pen bodies 1, 1 a, 1 b, 1 c and not guiding ink, and the outer peripheral wall 6 and the partition wall 7. And a plurality of ink lead-out cavities 9, 9 that extend in the longitudinal direction of the pen bodies 1, 1a, 1b, 1c and guide ink, A plurality of branch walls 10 and 10 that perform capillary action for guiding ink are provided in the ink discharge cavities 9 and 9, and the cavity 8 and the ink lead-out cavity 9 are alternately arranged on the long side outer wall 4 of the outer peripheral wall 6. Are arranged along. When the writing surface 3 of the pen body 1, 1a, 1b, 1c is slid on the paper surface, a plurality of lines having a predetermined line width are simultaneously written as shown in FIG. 4, FIG. 7, or FIG.
In addition, since the wall which forms this pen body 1, 1a, 1b, 1c, such as the outer peripheral wall 6 and the partition wall 7, has adhered the several monofilament, the surface is formed in the uneven | corrugated strip.
Also, as shown in FIG. 2, the writing surface 3 at the tip of the pen body 1, 1a, 1b, 1c has a pair of long side outer walls 4, 4 cut into a wedge shape. The surfaces of the pair of long side outer walls 4 and 4 are not exposed.

And the multi-drawing pen bodies 1, 1 a, 1 b, 1 c according to the embodiment of the present invention described above are configured in the following four forms.
First, the multi-drawing pen body 1 according to the first embodiment of the present invention will be described with reference to FIG.
When the writing surface 3 is slid on the paper surface, the multi-drawing pen body 1 according to the first embodiment of the present invention can simultaneously write four lines with a predetermined line width as shown in FIG. . In the multi-drawing pen body 1 according to the first embodiment, six partition walls 7 extending in a substantially straight line along the short-side outer wall 5 are arranged at six positions inside a substantially rectangular outer peripheral wall 6. Has been. The outer peripheral wall 6 and each partition wall 7 are configured by wall bodies 13 having substantially the same thickness.
In addition, a pair of parts inside the outer peripheral wall 6 of the pen body 1 and surrounded by the outer peripheral wall 6 and the partition wall 7 on both the left and right sides of the pen body 1 are spaced apart near the center. Ink discharge cavities 9 and 9 through which ink from the ink storage part is led out are formed in all four places of the two portions surrounded by the long side outer walls 4 and 4 and the opposing partition walls 7 and 7, respectively. ing. In addition, in the outer peripheral wall 6, ink is provided at three locations between the respective ink outlet cavities 9, 9 and surrounded by a pair of long-side outer walls 4, 4 and opposing partition walls 7, 7. Cavities 8 and 8 that are not guided are respectively formed.

  Further, in each ink outlet cavity 9, a plurality of branch walls 10 and 10 that perform capillary action for guiding ink extend in the longitudinal direction of the pen body 1 (two places in FIG. 3), and further, the crossing shown in FIG. In the planar shape, these branch walls 10 and 10 extend along the short side outer wall 5 from each of the pair of long side outer walls 4 and 4, and each tip is a free end, and a pair is formed so as to face each other with a gap therebetween. Has been placed. Moreover, these branch walls 10 and 10 have a thickness of about one half of the thickness of the wall body 13 constituted by the partition wall 7 and the outer peripheral wall 6.

Next, a multi-drawing pen body 1a according to a second embodiment of the present invention will be described with reference to FIG.
When the writing surface 3 is slid on the paper surface, the multi-drawing pen body 1a according to the second embodiment of the present invention can simultaneously write three lines with a predetermined line width as shown in FIG. . In the multi-drawing pen body 1a according to the second embodiment, partition walls 7 extending substantially linearly along the short side outer wall 5 are arranged at four positions inside the substantially rectangular outer peripheral wall 6. Has been.
Further, a pair of long-side outer walls 4 are located in two portions of the outer peripheral wall 6 of the pen body 1a, which are surrounded by the outer peripheral wall 6 and the partition wall 7 on both the left and right sides, and at substantially the center. 4 and one of the portions surrounded by the opposing partition walls 7 and 7 are formed with ink outlet cavities 9 and 9 through which ink from the ink reservoir is led out, respectively. In addition, in the outer peripheral wall 6, ink is provided at two locations between the ink outlet cavities 9, 9, which are surrounded by a pair of long-side outer walls 4, 4 and opposing partition walls 7, 7. Cavities 8 and 8 that are not guided are respectively formed.

  Further, in each ink lead-out cavity 9, a plurality of branch walls 10 and 10 (4 in FIG. 5) that perform a capillary action for guiding ink extend in the longitudinal direction of the pen body 1a. In the surface shape, these branch walls 10 and 10 extend along the short-side outer wall 5 from each of the pair of long-side outer walls 4 and 4, and the tips of the branch walls 10 and 10 are free ends and face each other with a gap therebetween. Paired. Moreover, these branch walls 10 and 10 have a thickness of about one-half of the thickness of the wall body 13 comprised by the partition wall 7 and the outer peripheral wall 6 similarly to 1st Embodiment. .

Next, a multi-drawing pen body 1b according to a third embodiment of the present invention will be described with reference to FIG.
The multi-drawing pen body 1b according to the third embodiment of the present invention can simultaneously write three lines having a predetermined line width as shown in FIG. . In the multi-drawing pen body 1b according to the third embodiment, partition walls 7 extending substantially linearly along the short-side outer wall 5 are arranged at four positions inside the substantially rectangular outer peripheral wall 6 at intervals. Has been.
Further, a pair of long-side outer walls 4 are provided at two positions inside the outer peripheral wall 6 of the pen body 1b and surrounded by the outer peripheral wall 6 and the partition wall 7 on both the left and right sides, and at substantially the center. 4 and one of the portions surrounded by the opposing partition walls 7 and 7 are respectively formed with ink outlet cavities 9 and 9 through which ink from the ink reservoir is led out. In addition, in the outer peripheral wall 6, ink is provided at two locations between the ink outlet cavities 9, 9, which are surrounded by a pair of long-side outer walls 4, 4 and opposing partition walls 7, 7. Cavities 8 and 8 that are not guided are respectively formed.

Furthermore, each ink outlet cavity 9 is provided with a longitudinal coupling wall 11 and a lateral coupling wall 12 intersecting in a cross shape. The vertical connection wall 11 extends along the short side outer wall 5 and is connected to each of the pair of long side outer walls 4 and 4. On the other hand, the lateral connection wall 12 extends along the long side outer wall 4 and is connected to the approximate center of each of the partition wall 7 and the short side outer wall 5 in each of the ink outlet cavities 9 located on the left and right sides. In the ink lead-out cavity 9 located, the partition walls 7 and 7 facing each other are connected to the approximate center. The vertical connection wall 11 and the horizontal connection wall 12 have a thickness of about one half of the thickness of the wall body 13 constituting the partition wall 7 and the outer peripheral wall 6.
By forming the vertical connecting wall 11 and the horizontal connecting wall 12, each ink outlet cavity 9 has four independent substantially rectangular outlet cavities 9a and 9a formed therein. In these lead-out cavities 9a, branch walls 10 extending along the longitudinal direction of the pen body 1b are provided. In the cross-sectional shape shown in FIG. It extends along the short side outer wall 5 toward the side outer wall 4 side, and its tip is a free end and is arranged so as to open a gap with the long side outer wall 4. In addition, the branch walls 10 and 10 have a thickness of about one-half of the thickness of the wall body 13 composed of the partition wall 7 and the outer peripheral wall 6 as in the first and second embodiments. The thickness of the vertical connection wall 11 and the horizontal connection wall 12 is substantially the same.

  In the case where the lateral connection wall 12 is provided as in the third embodiment, the length of the lateral connection wall 12 and the thickness of the partition wall 7 are set so that the lateral connection wall 12 is placed in the cavity 8 after molding. The partition wall 7 is set so as not to be bent so as to protrude into the cavity 8.

Next, a multi-drawing pen body 1c according to a fourth embodiment of the present invention will be described with reference to FIG.
When the writing surface 3 is slid on the paper surface, the multi-drawing pen body 1c according to the fourth embodiment of the present invention can simultaneously write two lines having a predetermined line width as shown in FIG. . In the multi-drawing pen body 1c according to the fourth embodiment, partition walls 7 extending substantially linearly along the short side outer wall 5 are arranged at two positions inside the substantially rectangular outer peripheral wall 6. Has been.
Ink from which the ink from the ink storage part is led out at two locations inside the outer peripheral wall 6 of the pen body 1a and on the left and right sides of the pen body 1a and surrounded by the outer peripheral wall 6 and the partition wall 7. Lead-out cavities 9 and 9 are respectively formed. In addition, inside the outer peripheral wall 6, the ink is provided at one location surrounded by the pair of long side outer walls 4, 4 and the opposing partition walls 7, 7 between the ink outlet cavities 9, 9. A cavity 8 is formed in which is not guided.

  Furthermore, in each ink outlet cavity 9, a plurality of branch walls 10 and 10 (4 in FIG. 8) that perform a capillary action for guiding ink extend in the longitudinal direction of the pen body 1c, and further, the crossing shown in FIG. In the surface shape, these branch walls 10 and 10 extend along the short-side outer wall 5 from each of the pair of long-side outer walls 4 and 4, and the tips of the branch walls 10 and 10 are free ends and face each other with a gap therebetween. Paired. In addition, these branch walls 10 and 10 have a thickness of about one-half of the thickness of the wall body 13 composed of the partition wall 7 and the outer peripheral wall 6 as in the first to third embodiments. is doing.

  As described above, according to the multiple drawing pen bodies 1, 1a, 1b, and 1c according to the embodiment of the present invention, the plurality of ink outlet cavities 9, 9 from which ink is derived and the empty space from which ink is not derived. Since the cavities 8 are alternately arranged along the long side outer walls 4 and 4 of the outer peripheral wall 6, a plurality of lines can be simultaneously written. Moreover, the outer peripheral wall 6 and the partition wall 7 are formed by wall bodies 13 having substantially the same thickness, and the partition wall 7 extends substantially linearly along the short side outer wall 5 and is folded so as to protrude into the cavity 8. Since it is not curved, it becomes possible to write a plurality of lines clearly. Furthermore, since a plurality of branch walls 10 that perform capillary action for guiding ink are provided in the ink outlet cavity 9, the ink can be efficiently supplied to the paper surface.

FIG. 1 is a perspective view showing a use state of a multi-drawing pen body according to an embodiment of the present invention. FIG. 2 is a perspective view showing a writing surface of the multi-drawing pen body according to the embodiment of the present invention. FIG. 3 is an enlarged view of a cross section of the pen body according to the first embodiment of the present invention. FIG. 4 is a handwriting diagram of the pen body shown in FIG. 3. FIG. 5 is an enlarged view of a cross section of a pen body according to the second embodiment of the present invention. FIG. 6 is an enlarged view of a cross section of a pen body according to the third embodiment of the present invention. FIG. 7 is a handwriting diagram of the pen body shown in FIGS. 5 and 6. FIG. 8 is an enlarged view of a cross section of a pen body according to the fourth embodiment of the present invention. FIG. 9 is a handwriting diagram of the pen body shown in FIG. FIG. 10 is an enlarged view of a cross section of a conventional pen body. FIG. 11 is a handwriting diagram of the pen body shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1a, 1b, 1c Pen body 4 Long side outer wall 5 Short side outer wall 6 Outer peripheral wall 7 Partition wall 8 Air space 9 Ink discharge | emission cavity 10 Branch wall 11 Vertical connection wall 12 Horizontal connection wall (connection wall)
13 Wall

Claims (4)

A pen body made of synthetic resin for supplying ink in the ink reservoir to the paper surface,
The pen body has a substantially rectangular outer peripheral wall formed by a pair of long sides and a pair of short sides,
A plurality of partition walls that divide the inside of the outer peripheral wall so as to divide the opposing long sides and extend in the longitudinal direction of the pen body;
A cavity surrounded by the outer peripheral wall and the partition wall, in which ink extending in the longitudinal direction of the pen body is not guided,
A plurality of ink outlet cavities extending in the longitudinal direction of the pen body, surrounded by the outer peripheral wall and the partition wall;
The ink outlet cavity is provided with a plurality of branch walls thinner than the partition wall in the interior thereof, and is formed so as to perform a capillary action for guiding ink, and the cavity and the ink outlet cavity are: A multi-drawing pen that is alternately arranged along the long side of the outer peripheral wall.   The outer peripheral wall and the partition wall are configured by wall bodies having substantially the same thickness, and the branch wall of the ink outlet cavity has a thickness of about one half of the thickness of the wall body. The multi-drawing pen body according to claim 1, wherein the multi-drawing pen body is provided.   3. The multiple line drawing according to claim 1, wherein the branch wall of the ink outlet cavity extends from a long side of the outer peripheral wall along a short side of the outer peripheral wall and has a free end. Pen body. The branch wall of the ink outlet cavity is formed from a connecting wall formed along a long side between the outer peripheral wall and the partition wall or between the partition wall and the partition wall. The multi-drawing pen body according to claim 1, wherein the pen body extends toward the long side of the, and has a free end.

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