JP3152588U - Simple writing instrument - Google Patents

Abstract

An object of the present invention is to provide a simple writing instrument that is easy to squeeze, is light and can be reduced in cost. In a simple writing instrument 10 having a shaft body 20 in which a pencil lead 11 is held at one end and a clip piece 30 is provided at the other end, a gripping portion (center portion 23) of the shaft body 20 is formed with a large diameter. The groove portion 22 is formed in the grip portion (center portion 23). [Selection] Figure 1

Description

  The present invention relates to a simple writing instrument, and more particularly to a single-use simple writing instrument that is convenient for carrying.

  2. Description of the Related Art Conventionally, as a single-use type simple writing instrument used for score entry or the like at a golf course, the one shown in FIG. 6 is known (see Patent Document 1 below). A simple writing instrument 50 shown in FIG. 6 is formed in a palm size, and a pencil core 52 is held at one end of a thin round bar-shaped shaft body 51 made of synthetic resin, and a flat plate shape is formed at the other end. The clip portion 53 is integrally formed.

  For example, when the simple writing instrument 50 is used in a golf course, the player puts the score card between the clip portions 53 and puts it in a pocket. When entering a score, the player removes the score card from the pocket as appropriate. The simple writing instrument 50 that has been kept in the above is used for entering a score.

Since the simple writing instrument 50 has a very simple form, various proposals for improving the added value have been proposed (see Patent Documents 2 to 5 below).
FIG. 7 is an exploded perspective view showing the golf writing instrument disclosed in Patent Document 2. As shown in FIG. The golf writing instrument 60 includes a pencil main body 61 for recording a score, a fork main body 62 for running-in the ground, and a marker 63 used on the green. A fork main body 62 having a fork portion is rotatably attached to the pencil main body 61, and a marker 63 is detachably attached to a hole of a pivotal support portion of the pencil main body 61.
Patent Document 3 also discloses a golf carrying device in which three components of a pencil, a fork, and a marker are integrated.

FIG. 8 shows a plan view of the pencil disclosed in Patent Document 4. The pencil 70 is a small pencil in which a shaft main body 72 having a pencil lead 71 held at one end and a clip portion 73 are integrated, and the clip portion 73 is provided with a convex lens 74 for enlarging small characters and the like. It is the composition which was made.
Patent Document 5 discloses a simple pencil in which a pencil lead is implanted at the lower end of the main body shaft portion and an eraser is fixed to the upper end of the main body shaft portion.

  As described above, various proposals for improving the added value of the writing instrument by adding different functions to the simple writing instrument 50 shown in FIG. 6 have been proposed. However, a simple writing instrument such as the simple writing instrument 50 is further improved. No improvement has been proposed so far in order to reduce the weight and reduce the manufacturing cost, and to improve the usability such as ease of squeezing at the time of writing.

  In addition, the conventional simple writing instrument 50 and the writing instruments disclosed in Patent Documents 2 to 5 are provided with a clip portion so that they can be used by being sandwiched between cards or the like. When putting in or taking out, a writing instrument may get caught in the pocket and may be lost from the card, so it was not excellent in portability.

Japanese Utility Model Publication No. 7-15380 Japanese Utility Model Publication No. 5-5495 JP-A-9-47533 Design Registration No. 1032402 JP 2005-131793 A

Means for solving the problems and their effects

  The present invention has been made in view of the above problems, and is intended to provide a simple writing instrument that can be easily and lightly shaped, can reduce costs, and is excellent in portability. It is aimed.

  In order to achieve the above object, a simple writing instrument (1) according to the present invention is a simple writing instrument having a shaft body in which a pencil lead is held at one end and a clip piece is provided at the other end. It is formed in a large diameter, and a groove portion is formed in the grip portion.

  According to the simple writing instrument (1), since the grip portion in the shaft main body is formed in a large diameter and the groove portion is formed in the grip portion, it can be easily formed in a light and light form. It is easy to write and can be excellent in usability.

  In the simple writing instrument (2) according to the present invention, in the simple writing instrument (1), at least one or more rows of the groove portions are formed along the axial direction of the central portion of the shaft main body serving as the gripping portion. It is formed that the portion formed in the range of 30 to 50% of the groove portion in the cross section of the central portion of the main body occupies 40 to 70% of the length of the central portion of the shaft main body. It is a feature.

  According to the simple writing instrument (2), the volume of the groove formed in the central portion of the shaft main body can reduce the amount of materials such as plastic used for forming the shaft main body. Compared with the conventional simple writing instrument 50 shown in FIG. 6, the manufacturing cost can be reduced, and at the same time, the weight can be reduced. Furthermore, since one or more rows of the groove portions are formed in the central portion of the shaft main body serving as a grip portion, a fingertip can bite into the groove portions appropriately at the time of writing, preventing finger slipping and the like, and enhancing the grip feeling. Can do.

  In the simple writing instrument (3) according to the present invention, in the simple writing instrument (2), the cross section of the central portion of the shaft main body in which the groove portion is formed is a line-targeted shape with the base of the mountain shape as the axis of symmetry. It is characterized by being formed.

  According to the simple writing instrument (3), since the cross section of the central portion of the shaft main body in which the groove portion is formed is formed in a line-like shape with the bottom of the mountain shape as the axis of symmetry, the shaft main body The strength against bending of the central portion can be increased, the depth of the groove portion can be increased, and the effects of weight reduction and cost reduction are further reduced without impairing the strength against bending of the central portion of the shaft body. Can be increased.

  In the simple writing instrument (4) according to the present invention, in the simple writing instrument (3), the diameter in the direction of the symmetric axis of the cross section of the central portion of the shaft body is larger than the diameter in the direction perpendicular to the axis of symmetry. It is characterized by being.

  According to the simple writing instrument (4), the diameter in the direction of the symmetric axis of the cross section of the central portion of the shaft main body serving as the grip portion is formed to be thicker than the diameter in the direction perpendicular to the axis of symmetry. It is easy and the usability can be improved.

  The simple writing instrument (5) according to the present invention is characterized in that, in any one of the simple writing instruments (1) to (4), a through-hole penetrating the shaft body is formed in a part of the groove portion. It is said.

  According to the simple writing instrument (5), since a through-hole penetrating the shaft body is formed in a part of the groove portion, only the volume of the through-hole formed is further reduced in weight and cost. Can be planned.

  Moreover, the simple writing instrument (6) which concerns on this invention is a clip part which has the frame part hollowed out in the shape of the said clip piece in the other end of the said shaft main body in either of the said simple writing instruments (1)-(5). Is formed, and the lower surface of the clip piece is disposed at a position substantially flush with the upper surface of the frame portion, and a member for suspending is inserted through a connecting portion of the clip piece with the frame portion. The insertion part is formed.

  According to the said simple writing instrument (6), the member for hanging, for example, a string etc., can be passed through the said insertion part formed in the connection part with the said frame part in the said clip piece. Therefore, clothes that can be carried while being suspended on the user's neck, etc., can be improved in portability, can be prevented from being lost due to being put in and out of the pocket, etc., and a pencil lead adheres to the pocket. Dirt can be prevented.

It is the figure which showed the simple writing instrument which concerns on embodiment (1) of this invention, (a) is a top view, (b) is a front view, (c) is a bottom view. (A) is the IIa-IIa line cutting part expanded end elevation in Drawing 1 (a), (b) is the IIb-IIb line cutting part enlarged end elevation in Drawing 1 (a), (c) is in Drawing 1 (a) IIc-IIc line cutting portion enlarged end view, (d) is an IId-IId line cutting portion enlarged end view in FIG. 1 (a), and (d) is an IIe-IIe line cutting portion enlarged end view in FIG. 1 (a). is there. It is the III-III line expanded sectional view in Fig.1 (a). It is the figure which showed the simple writing instrument which concerns on embodiment (2), (a) is a top view, (b) is a front view, (c) is a bottom view. (A) is an enlarged end view of the Va-Va line cut portion in FIG. 4 (a), (b) is an enlarged end view of the Vb-Vb line cut portion in FIG. 4 (a), and (c) is FIG. 4 (a). Fig. 4D is an enlarged end view of the Vc-Vc line cut portion in Fig. 4D. Fig. 4A is an enlarged end view of the Vd-Vd line cut portion in Fig. 4A. Fig. 4E is an enlarged end view of the Ve-Ve line cut portion in Fig. 4A. It is. It is the top view which showed the conventional simple writing instrument. It is the disassembled perspective view which showed another conventional simple writing instrument. It is the top view which showed another conventional simple writing instrument.

  Hereinafter, embodiments of a simple writing instrument according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a simple writing instrument according to Embodiment (1), in which (a) is a plan view, (b) is a front view, and (c) is a bottom view.

Moreover, FIG. 2 is the figure which showed the cross-sectional shape of the simple writing instrument which concerns on embodiment (1), (a) is the IIa-IIa line | wire cutting part enlarged end elevation in FIG. 1 (a), (b). Is an enlarged end view taken along line IIb-IIb in FIG. 1 (a), (c) is an enlarged end view taken along line IIc-IIc in FIG. 1 (a), and (d) is IId-IId in FIG. 1 (a). The line cutting part enlarged end elevation, (d) has shown the IIe-IIe line cutting part enlarged end elevation in Drawing 1 (a).
FIG. 3 shows an enlarged sectional view taken along line III-III in FIG.

The simple writing instrument 10 shown in FIG. 1 is one in which a shaft body 20 having a pencil lead 11 held at one end and a clip piece 30 disposed at the other end of the shaft body 20 are integrally formed.
The shaft body 20 includes a lead holding portion 21 for holding the pencil lead 11, a central portion 23 in which a groove portion 22 is formed along the axial direction, and a cutout portion 24 cut out in substantially the same shape as the clip piece 30. It has a frame portion 25 and has a single piece of plastic.

  The plastic material used for the shaft body 20 and the clip piece 30 is not particularly limited, and examples thereof include resins such as polyethylene, polypropylene, soft polyvinyl chloride, and polyethylene terephthalate that are excellent in flexibility, heat resistance, and water resistance. It is done.

  For example, the length L1 of the core holding portion 21 is set to about 10 mm, the length L2 of the central portion 23 is set to about 50 to 55 mm, and the length L3 of the frame portion 25 is set to about 40 mm. The total length including the length of the pencil lead 11 is about 110 mm.

  The first feature of the simple writing instrument according to the present invention is the shape of the central part 23 of the shaft main body serving as a gripping part. As shown in FIGS. The cross section of the shaft body central portion 23 in which the groove portions 22 of the rows are formed has a line-like shape with the bottom of the mountain shape as the symmetry axis Z1, and two rows each on the plane side and the bottom side. A groove portion 22 is formed.

  The ratio of the total area of the groove 22 in the section taken along the line IIb-IIb in FIG. 1A shown in FIG. 2B is about 37 to 38%, and FIG. The ratio of the total area of the groove part 22 in the cross section of the IIc-IIc line | wire and IId-IId line | wire cutting part in (a) is about 43 to 44%. In addition, the total area of the groove part 22 is calculated | required as a value which subtracted the area of the IIb-IIb line cut surface and the area of the IIc-IIc line cut surface from the area of the IIa-IIa line cut surface in which the groove part 22 is not formed.

  The length L4 from the IIb-IIb line to the IId-IId line in FIG. 1A is set to about 25 to 30 mm, and the area ratio of the groove portion 22 is formed in the range of 37 to 44% described above. The portion (L4 portion) is formed to occupy 45 to 60% of the length L2 of the central portion 23 of the shaft body.

  In addition, the area ratio of the groove part 22 is not limited to the above-described form, and may be designed to be in a range of 30 to 50%, and the area ratio of the groove part 22 is 30 to 50%. What is necessary is just to form so that the part currently formed in the range may occupy 40 to 70% of the length of the shaft main body central part 23.

  As is apparent from the description of FIGS. 2C and 2D, the shaft body central portion 23 has a diameter D1 in the direction of the symmetric axis Z1 of the cross section thereof is larger than a diameter D2 in the direction orthogonal to the symmetric axis Z1. There is a portion formed thick, and in the cross section from the IIc-IIc line to the IId-IId line (see FIG. 1 (a)) in the shaft body central portion 23, a shape in which the convex portion 26 is formed in the direction of the symmetric axis Z1. It has become. For example, it is possible to design the diameter D1 to 6 to 7 mm and the diameter D2 to 5 mm. In addition, the diameter of the cross section of the shaft body central portion 23 is formed to be thicker than the diameter of the cross section of the core holding portion 21.

  The second feature of the simple writing instrument according to the present invention is the shape of the clip piece 30. As shown in FIG. 1B and FIG. 3, the clip piece 30 is arranged at a position where the lower surface 30 a thereof is substantially flush with the upper surface 25 a of the frame portion 25. An insertion portion 31 for inserting a member for hanging, for example, a string or the like, is formed in the connection portion.

In the embodiment (1), the shape of the insertion part 31 is formed in a substantially semicircular arc shape when viewed from the front. However, the shape of the insertion part 31 is not limited to this, and may be a reverse concave shape when viewed from the front. Any shape can be used as long as a member for hanging can be inserted.
According to the simple writing instrument 10 according to the above embodiment (1), the grip portion (center portion 23) in the shaft body 20 is formed in a large diameter, and the groove portion 22 is formed in the shaft body center portion 23 serving as the grip portion. Therefore, it can be easily formed in a light and light form, and it is easy to write letters and the like and has excellent usability.

  Further, the volume of the groove portion 22 formed in the central portion 23 of the shaft body 20 can reduce the amount of the material such as plastic used for forming the shaft body 20, and the conventional amount shown in FIG. Compared with a simple writing instrument, the manufacturing cost can be reduced, and at the same time, the weight can be reduced. Further, since one or more rows (four rows in this case) of the groove portions 22 are formed in the central portion 23 of the shaft main body 20 serving as a grip portion, the fingertips bite into the groove portions 22 at the time of writing. Etc. can be prevented, and a grip feeling can be enhanced.

  Further, since the cross section of the shaft body central portion 23 in which the groove portion 22 is formed is formed into a line target shape with the bottom of the mountain shape as the symmetry axis Z1, the strength against bending of the shaft body central portion 23 is increased. In addition, the depth of the groove portion 22 can be increased, and the effects of weight reduction and cost reduction can be further enhanced without impairing the bending strength of the central portion 23 of the shaft body.

  In addition, the diameter D1 in the direction of the symmetry axis Z1 in the cross section of the shaft main body central portion 23 serving as the gripping portion is formed thicker than the diameter D2 in the direction orthogonal to the symmetry axis Z1, and is formed in a convex shape in the direction of the symmetry axis Z1. Therefore, it is easy to squeeze and can improve the feeling of use.

  Moreover, since the insertion part 31 for inserting the member for hanging is formed in the connection part with the frame part 25 in the clip piece 30, the member for hanging to the insertion part 31, for example, A string etc. can be passed. Therefore, it can be carried while being hung on the user's neck, etc., and it can be improved in portability, and it can be prevented from being lost due to taking in and out of the pocket. It is also possible to prevent soiling.

  FIG. 4 is a diagram showing a simple writing instrument according to the embodiment (2), in which (a) is a plan view, (b) is a front view, and (c) is a bottom view. Moreover, FIG. 5 is the figure which showed the cross-sectional shape of the simple writing instrument which concerns on embodiment (2), (a) is the Va-Va line cutting part enlarged end elevation in FIG. 4 (a), (b) ) Is an enlarged end view of the Vb-Vb line cut portion in FIG. 4A, (c) is an enlarged end view of the Vc-Vc line cut portion in FIG. 4A, and (d) is Vd- in FIG. 4A. FIG. 4E is an enlarged end view of the Vd line cut portion, and FIG. 4E is an enlarged end view of the Ve-Ve line cut portion in FIG.

In addition, the same function is attached | subjected to the component which has the same function as the simple writing instrument 10 which concerns on embodiment (1), and the description is abbreviate | omitted here.
The simple writing instrument 10A according to the embodiment (2) is different from the simple writing instrument 10 according to the embodiment (1) in the configuration of the shaft body. In the simple writing instrument 10A according to the embodiment (2), The difference is that a through hole penetrating the shaft main body is formed in a part of the groove formed in the central portion of the shaft main body.

  The simple writing instrument 10A shown in FIG. 4 is one in which a shaft body 20A having a pencil core 11 held at one end and a clip piece 30 disposed at the other end of the shaft body 20A are integrally formed.

  The shaft main body 20A includes a core holding portion 21 that holds the pencil lead 11, a central portion 23A in which a groove portion 22 is formed along the axial direction, and a cutout portion 24 that is cut into substantially the same shape as the clip piece 30. It has a frame portion 25 and has a single piece of plastic.

  For example, the length L1 of the core holding portion 21 is about 10 mm, the length L2 of the central portion 23A serving as the gripping portion is about 50 to 55 mm, and the length L3 of the frame portion 25 is 40 mm. It is set to the front and back, and has a total length of about 110 mm including the length of the pencil lead 11.

  As is clear from the description of FIGS. 5B and 5D, the cross section of the shaft body central portion 23A in which the groove portion 22 is formed has a line-like shape with the bottom of the mountain shape as the symmetry axis Z1. The groove portions 22 are formed in two rows on each of the flat surface side and the bottom surface side, and in each groove portion 22, a through hole 27 penetrating the shaft main body 20A is formed. The length L5 of the through hole 27 is set to about 20 to 30 mm, and is formed to occupy about 40 to 60% of the length L2 of the central portion 23A.

  According to the simple writing instrument 10A according to the embodiment (2), since the through hole 27 penetrating the shaft main body 20A is formed in a part of the groove portion 22, only the volume of the through hole 27 is formed. Weight reduction and cost reduction can be achieved.

  In the above-described embodiments (1) and (2), the cross sections of the shaft body central portions 23 and 23A in which the groove portions 22 are formed have a shape that is a line object with the base of the mountain shape as the symmetry axis Z1. However, the cross-sectional shape of the central part of the shaft main body in which the groove 2 is formed is not limited to the above-described shape. For example, the cross-sectional shape is an H shape or a concave shape. The portion where the groove area ratio in the cross section of the central portion of the shaft body is in the range of 30 to 50% is 40 to 70% of the length of the central portion of the shaft body (70% or less) Various shapes that can be formed so as to occupy 70% or more may be employed.

  Further, in the simple writing instruments 10 and 10A according to the above-described embodiments (1) and (2), the insertion portion 31 is formed at the connection portion of the clip piece 30 with the frame portion 25, but the insertion portion 31 is formed. It may be in a form that is not.

10, 10A Simple writing instrument 11 Pencil lead 20, 20A Shaft body 21 Core holding part 22 Groove part 23, 23A Central part 25 Frame part 30 Clip piece

Claims (6)

In a simple writing instrument having a shaft body in which a pencil lead is held at one end and a clip piece is provided at the other end,
A simple writing instrument, wherein a grip portion in the shaft main body is formed in a large diameter, and a groove portion is formed in the grip portion. At least one or more rows of the groove portions are formed along the axial direction of the central portion of the shaft main body serving as the grip portion,
The part formed in the range of 30 to 50% of the area of the groove in the cross section of the central part of the shaft body is formed to occupy 40 to 70% of the length of the central part of the shaft body. The simple writing instrument according to claim 1, wherein:   The simple writing instrument according to claim 2, wherein a cross section of the central part of the shaft main body in which the groove is formed is formed in a line-like shape with a base of a mountain shape as an axis of symmetry.   4. The simple writing instrument according to claim 3, wherein a diameter of the cross section of the central portion of the shaft main body is formed to be thicker than a diameter in a direction perpendicular to the symmetry axis.   The simple writing instrument according to any one of claims 1 to 4, wherein a through-hole penetrating the shaft main body is formed in a part of the groove portion. At the other end of the shaft body, a clip portion having a frame portion cut out in the shape of the clip piece is formed,
The lower surface of the clip piece is disposed at a position substantially flush with the upper surface of the frame portion,
The simplified portion according to any one of claims 1 to 5, wherein an insertion portion for inserting a member for suspending is formed at a connection portion of the clip piece with the frame portion. Writing instrument.

Images