JPH0756229Y2 - Writing instrument - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument, and more specifically, it is possible to perform writing with a plurality of writing elements such as ballpoint pens or mechanical pencils of different colors with one writing instrument. The present invention relates to a writing element that can be written in a more suitable state using a writing element selected from the writing elements.

[0002]

2. Description of the Related Art A writing instrument that has a plurality of writing elements and is capable of writing with a selected writing element has hitherto been known as a so-called multicolored ballpoint pen, or the tip of a mechanical pencil and the tip of a ballpoint pen. There is one that can be selectively projected from the tip of the body. Such a writing instrument generally has a so-called knock mechanism built-in, whereby a tip of a plurality of writing elements housed inside the body is guided through a guide hole provided at the tip of the cylindrical main body. Are configured so that they can be selectively projected.

That is, a plurality of writing elements are accommodated inside the main body of the above-mentioned writing instrument in a state where the tip portions thereof are not restrained, and when any one of the writing elements is pushed down by the knock mechanism, The tip writing tip portion of the writing element projects from the tip guide hole of the main body body, and the writing tip portion is constrained by the guide hole in the direction perpendicular to the axis.

Such a writing instrument is compact,
Moreover, it is convenient to carry, but as described above, the outer diameters of the tip writing tips of all the writing elements must be set so as to project from the guide holes at the tip of the main body. Therefore, what can be selected as a writing element is that the writing tip can have a small diameter,
Since it is limited to a hole pen or a thin-axis mechanical pencil, it is impossible to select a writing element for a marker such as a felt pen.

Further, since the above-mentioned writing instrument requires a knocking mechanism for accommodating a plurality of writing elements inside the body of the main body and for selectively pushing down these writing elements, the outer diameter thereof is relatively large. It has a diameter. The fact that the body body has a relatively large diameter in this way is not necessarily inconvenient for the writer, but on the other hand, the guide hole that should be provided to project each writing element at the tip of the body body is However, as described above, it is unavoidable to dispose on the central axis of the main body having a relatively large diameter.
However, the fact that the brush tip is located on this axis with respect to the main body with a large diameter makes it difficult to see the brush tip during writing, or it is the target for writing while holding the main body. This causes a problem of lacking stability during writing, such as a moment when the tip of the brush is pressed against the surface of the barrel to generate a moment.

A holder provided with a clip which is convenient to carry in a pocket of clothes is used to engage and hold a writing instrument such as a ballpoint pen or a mechanical pencil, which is completed as a writing instrument, and a plurality of writing instruments are set. It is also being developed that can be carried together by holding it. However, such a set-type writing instrument is simply convenient to carry,
At the time of writing, each writing instrument must be removed from the holder before use, and therefore, there is a problem that the writing instrument separated from the holder scatters and the set collapses.

The present invention was devised under the circumstances described above, and the form of the writing tip portion is not limited as a writing element, and a writing element such as a felt-tip pen can also be incorporated. , Writing with a writing element selected from these multiple writing elements is possible, and further,
The instability at the time of writing due to the increase in the diameter as a whole is eliminated to improve the ease of writing, and in addition, there is no problem that a part of the writing element is scattered and the set is separated. The task is to provide a new writing instrument that does.

[0008]

In order to solve the above problems, the present invention takes the following technical means.

That is, the writing instrument according to claim 1 of the present application has a body body formed into a substantially triangular outer peripheral cross-section, and is attached to the inside of the body body in a non-separable manner. Three axial writing elements, which are arranged laterally offset with respect to the axis of the body body on the inner side of the side lines corresponding to the tops of the substantially triangular shape, and which themselves have a predetermined bending rigidity. Each of the writing elements is slidable in the axial direction between a writing state in which the writing point portion projects a predetermined amount with respect to the main body body and a storage state in which the writing point portion retracts from the writing state. It is characterized by being

The writing instrument according to claim 2 of the present application is a non-separable attachment to the main body and the periphery of the main body, and the three writing instruments have a predetermined bending rigidity. An element, each writing element has its cross-sectional shape set to cooperate with the body body to form a substantially triangular outer peripheral cross-sectional shape, and is arranged at each top of the substantially triangular shape, and For body body,
It is characterized in that it is slidable in the axial direction between a writing state in which the writing tip portion projects by a predetermined amount and a storage state in which the writing tip portion retracts from the writing state.

[0011]

In the writing instrument provided with a plurality of writing elements such as a conventional knock type multicolor ballpoint pen, the tip of each writing element accommodated in the main body body comes out from the guide hole provided at the front end of the main body body. By projecting, the writable state by the writing element is selected, whereas the writing instrument of the present invention does not,
It is assumed that each writing element itself has a certain degree of rigidity against bending, and the writing elements are arranged so that their axes are parallel to each other at a position deviated from the axis of the main body. It is possible to select a writing state in which each writing element slides in the axial direction of the writing element so that the writing point portion projects, and a storage state in which the writing point portion retracts as compared with the writing state.

That is, the writing element in the writing instrument of the present invention can be moved to writing simply by sliding the writing element toward the body body and selecting the writing state. Therefore, there is no limitation on the tip shape of each writing element, particularly the outer diameter of the tip writing tip portion, and for example,
It is also possible to employ a writing instrument for a marker such as a felt-tip pen as a writing element.

In addition, according to the present invention, the axis of each writing element is deviated from the axis of the main body even when the tip of the writing tip is projected forward. Therefore, by positioning the writing element in the writing enabled state with the writing tip portion protruding forward, the writing element is positioned in a state close to the thumb among the thumb, the index finger, and the middle finger holding the main body or the entire writing instrument. The brush tip, which tends to be hidden underneath, is very easy to see.

Further, when the writing element which is ready for writing by projecting the tip writing tip portion from the tip of the other writing element is positioned in a state close to the thumb as described above, the writing instrument is pressed down so as to press the entire writing instrument. The axial extension line of the index finger, which is attached to the upper surface of the writing element, intersects the tip end portion of the writing element in the writing state in a state where it is not displaced so much in the left-right direction in a plan view.

As a result, the force that pushes the entire writing instrument downward with the index finger is less likely to generate a moment centering on the writing tip portion that comes into contact with the paper surface as the writing target, and therefore the writing instrument during writing as a whole. Improves stability. As described above, in the writing instrument of the present invention, in terms of easiness of writing, a marked improvement is achieved as compared with the writing instrument such as the conventional multicolor type ballpoint pen. In the writing instrument of the present invention, the writing elements are individually slid in the axial direction to select the writing state. Therefore, when it is necessary to change the writing elements frequently, slide the plurality of writing elements. It is also possible to select the writing state. Then, by rotating the body body, it is possible to select a desired writing element and immediately start writing, and writing with the plurality of writing elements is very easy to write as described above. In a so-called knock-type multicolor ballpoint pen, such an effect is obtained when the writing with the ballpoint pen of one color is changed to the writing with the ballpoint pen of the other color, only the nib to be written from the hole at the tip of the body is knocked by the knock mechanism. It will be appreciated how good it is compared to the need for a protruding operation.

Particularly, in the writing instrument according to the second aspect, the outer peripheral shape of the main body is substantially triangular, and the three axial writing elements attached to the inside are the outer circumference of the cross section of the main body. Since it is arranged on the inner side of the lateral line of each apex, it is possible to hold the writing instrument with a thumb and an index finger on two sides sandwiching one apex of the substantially triangular cross section. Then, the contact area of the finger of the writer that comes into contact with the outer surface of the writing instrument is enlarged, and the effect that the writer is more familiar with the writer in the grasped state is exhibited.

Further, in the writing instrument of the above-mentioned claim 1, the outer peripheral cross-sectional shape of the body is made substantially triangular so that the cross-sectional shape of the entire writing instrument is regulated. By attaching each axial writing element around the body and forming the cross-sectional shape of each of these axial writing elements in a predetermined manner, the plurality of writing elements cooperate to form a cross-sectional shape of the writing instrument as a whole. Is a triangle. In this way, the effect of improving the easiness of writing by making the sectional shape of the entire writing instrument substantially triangular is the same as that of the writing instrument according to claim 1.

Further, in the writing instrument according to the first and second aspects, in addition to the sectional shape as a whole being substantially triangular, each writing element is deviated from the axial center of the main body. That is also one of the important components.
By positioning the position of the writing element that is in the writing state by protruding the tip writing portion, it is easier to visually recognize the writing element of the writing element, which is likely to be hidden by the thumb during writing, by positioning the writing element in a state close to the thumb that holds the writing instrument. In addition, the downward pressing force of the forefinger that is pressed down from the upper surface of the writing instrument is effectively transmitted to the writing tip portion, and moreover, it is possible to continue writing in a stable state without generating a rotation moment around the writing tip portion. The same as above.

As described above, according to the writing instrument of the present invention,
Not only does the convenience of being able to selectively bring these writing elements into a writing state by collecting three writing elements regardless of the shape of the tip of each writing element, By displacing to the vicinity of each vertex of the substantially triangular cross section with respect to the axis of the body of the main body, the visibility of the writing tip during writing is improved, the stability of the writing instrument as a whole during writing, and the pressing force of the index finger. The effective transmission to the writing tip part is achieved, and the writing efficiency is significantly improved as compared with the conventional writing instrument. Further, since each writing element is attached to the main body in a non-separable manner, the problem that each writing element is scattered during use is avoided.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described.
A specific description will be given with reference to the drawings. 1 to 4
Shows a first configuration example of the writing instrument of the present invention. The writing instrument 1 of this example is an example in which three axial writing elements 3a, 3b, 3c are attached to the inside of the main body 2. As shown in FIG. 2, the main body 2 has a substantially triangular cross section, and the writing element 3 corresponds to the position of the top of the triangle.
Retaining holes 4a, 4b, 4c having a cylindrical inner surface for slidably accommodating a, 3b, 3c are formed. The main body 2 can be formed by resin molding,
The length in the axial direction is set to a length that the writer can comfortably hold with three fingers, that is, the thumb a, the index finger b, and the middle finger c (see FIG. 4). Each of the holding holes 4a, 4
b and 4c are formed such that their axes are parallel to each other. Further, slits 5a, 5b and 5c each having a predetermined width are formed at positions corresponding to the tops of the triangles.

On the other hand, each writing element 3a, 3b, 3c has a round shaft shape that can be inserted into each of the holding holes 4a, 4b, 4c, and the shape of the writing tip portion is not limited. That is, the writing elements 3a, 3b, 3c may be provided with a ball-point pen-shaped writing tip, may be a writing tip in the form of a mechanical pencil, or may be in the form of a felt pen. When the writing element is in the form of a mechanical pencil, it is necessary that the writing element itself has a built-in knock mechanism and that the core is sequentially extended by pressing the knock button at the base end. Matters required for each writing element 3a, 3b, 3c in relation to the body body 2 can be easily inserted into the holding holes 4a, 4b, 4c and slide with some frictional force in the axial direction. It means that it can be inserted as much as possible.

Slide knobs 6a, 6b, 6 exposed on the outer surface of the main body 2 through the slits 5a, 5b, 5c are provided at appropriate portions on the peripheral surfaces of the writing elements 3a, 3b, 3c.
c is provided. That is, this slide knob 6a,
6b and 6c are provided with a guide protrusion 7 that fits into each of the slits 5a, 5b and 5c and reaches the outer surface of the main body 2, and a knob portion 8 that is formed wide at the tip of the guide protrusion portion 7. It has a mushroom shape. It is preferable to form irregularities on the surface of the knob portion 8 in order to prevent slippage with respect to the user's finger.

The slide knobs 6a, 6b, 6c, and
Between the slits 5a, 5b and 5c, the writing elements 3a, 3b and 3c are stored at positions where their writing tips are projected from the tip of the main body 2, and where the writing tips are retracted from the tip of the main body 2. In the position, locking means are provided which can prevent axial sliding movement with a constant locking force. In this example, as shown in FIG. 3, convex portions 9 are formed on both side surfaces of the guide protrusion 7 of each slide knob 6a, 6b, 6c.
And the recesses 10 with which the projections 9 can be engaged are formed on the inner walls of the slits 5a, 5b, 5c. It goes without saying that the recess 10 should be provided at two positions in the axial direction of each slit. That is, when the convex portion 9 is engaged with the concave portion 10 on the distal end side of the main body 2, the writing element of the writing tip projects from the distal end of the main body 2, and the convex portion 9 is concave on the proximal end side. 10
The tip of the writing element is set so as to be retracted from the tip of the main body 2 when the writing element is engaged.

Since the main body 2 is made of resin as described above, the slits 5a, 5b,
When an external force for expanding the width of 5c acts, the clearances of the slits 5a, 5b, 5c elastically expand. Therefore, by operating the slide knobs 6a, 6b, 6c so as to push them in the axial direction of the main body 2, the convex portion 9 fitted in the concave portion 10 is separated from the concave portion while expanding the width of the slit. Then, the slide knob is kept pressed as it is, and at the time when the convex portion 9 is positioned corresponding to the other concave portion 10, the slits 5a, 5b, and 5c have an elastic force that tends to reduce the widened gap. By the action, the convex portion 9 is fitted into the concave portion 10 with a feeling of moderation.

Even when each writing element 3a, 3b, 3c is in a state in which the writing tip portion is protruding and the writing tip portion is retracted, the projection 9 of the slide knob is elastically fitted into the recess 10 of the slit. By doing so, the writing elements 3a, 3b, 3c are prevented from being inadvertently displaced in the axial direction. The blocking force for the axial movement of the writing elements 3a, 3b, 3c due to the engagement of the convex portion 9 and the concave portion 10 with each other is the inner peripheral surface of the holding holes 4a, 4b, 4c and each writing element 3.
Due to the total blocking force with the frictional force generated between the outer peripheral surface of a, 3b, and 3c, each writing is inadvertently caused by the ordinary force that presses the writing tool 1 against the paper surface to be written in the writing state. Elements 3a, 3b, 3c are body bodies 2
It is set so that it will not be withdrawn.

Next, a method of using the writing instrument 1 according to the above embodiment will be described. When not used as a writing instrument, all of the writing elements 3a, 3b, 3c are retracted so that their writing tips are immersed in the main body 2. This retracted state is held by the projection 9 of the guide projection 7 of each writing element engaging with the recess 10 on the base end side of the main body body among the recesses 10 provided in each slit 5a, 5b, 5c. .

Next, when using as a writing instrument, 3
Of the writing elements 3a, 3b, 3c of the book, only the desired writing element is moved forward by pushing the slide knob or pushing the rear end portion, and the tip writing tip portion is projected from the tip end of the main body body 2. .. Even in this state,
Since the convex portion 9 of the guide protrusion 7 can engage with the concave portion 10 provided in the slit, the protruding state is maintained. Then, as shown in FIG. 4, the writer's thumb a and forefinger b are applied to the two surfaces sandwiching the top corresponding to the writing element used for writing, that is, the writing element with the tip of the writing body protruding from the tip of the main body 2. Then, the writing instrument 1 is gripped.

As shown in FIG. 4, the writing element 3a in the writing state is deviated from the central axis of the main body 2 so as to be close to the thumb a of the writer holding the main body 2. Therefore, the writing tip portion is not hidden by the thumb a of the writer, and the state becomes easy to visually recognize. Further, since the axis La of the index finger b intersects with the axis Lb of the writing element 3a in the plan view in the vicinity of the writing tip portion, the force with which the writing tool 1 is pressed by the index finger b against the paper surface to be written. Is effectively transmitted to the tip of the writing element 3a, and the index finger b
The pushing-down force due to does not generate a moment about the writing tip of the writing element 3a.

Therefore, in the writing instrument 1 of this example, since the writing point of the writing element 3a is easily visible, control of the writing instrument 1 is easy and easy to write, and the downward pressing force by the index finger is effectively transmitted, and the writing instrument is also effective. It is easy to write because 1 does not shake due to the rotation moment. Even when writing is performed using the other writing elements 3b and 3c, the writing can be performed by the same method as described above. It is also possible to make two or more of the writing elements 3a, 3b, 3c in a writing state in which the writing tip portion thereof projects, and to rotate the body body 2 to immediately change the writing element and continue writing. . Even in this case, the above-described ease of writing applies to each writing element.

5 to 8 show another example of the construction of the writing instrument of the present invention. In this example, each writing element 3a,
3b and 3c are attached to the outer periphery of the main body 2. The main body 2 has a shape in which three supporting walls 2a, 2b, 2c extend at equal intervals from the center in a cross section, and has a predetermined length in the axial direction. The inner surface sandwiched by each of the support walls 2a, 2b, 2c has a substantially arcuate inner surface shape, and this inner surface form corresponds to a part of the outer surface shape of the side surface of each writing element 3a, 3b, 3c.

That is, the above writing elements 3a, 3b, 3
c has a substantially triangular cross-section as a whole having a side wall portion of an arc outer surface corresponding to a support surface of an arc inner surface formed on the body body 2, and the side wall portion of the arc outer surface has a side wall portion. When combined so as to correspond to the retaining walls having the inner surface of each circular arc, as shown in FIG. 6, the main body 2 and the writing elements 3a, 3b, 3c attached thereto cooperate to form a substantially triangular cross section. It is designed to be configured.

As shown in FIG. 5, each of the writing elements 3a, 3b and 3c has a cap 11 attached to the tip thereof to cover the tip of the writing element. Also, this cap 11 is
When removed from the tip of the writing element, as shown in FIG. 8, the writing element can be fitted on the proximal end side of each writing element 3a, 3b, 3c and attached thereto.

The writing elements 3a, 3b, 3c are attached to the main body 2 in a non-separable and axially slidable manner as follows. That is, as shown in FIG. 6 and FIG. 7, the guide ridges 12 extending in the axial direction are formed on the respective arcuate inner surface-shaped holding surfaces on the main body 2 side, while the writing elements 3a, 3b, 3c are formed. A guide groove 13 for slidingly accommodating the guide protrusion 12 is formed on the side surface of the arc-shaped outer surface in the axial direction. Guide ridge 1 above
As shown in detail in FIG. 6, the cross section of No. 2 is formed such that the front end is wider than the base, while the guide groove 1
The cross section of No. 3 is formed such that the bottom is wider than the opening. Therefore, these guide ridges 12
In a state where the guide groove 13 and the guide groove 13 are fitted to each other, each writing element 3a, 3b, 3c can slide in the axial direction with respect to the main body 2, but in the direction perpendicular to the main body 2, You will not be able to leave.

The fitting strength of the guide groove 13 to the guide ridge 12 is determined by the writing elements 3a, 3b and 3c.
It is recommended that the slide be set with a certain frictional force.

Further, in this example, the main body 2
On the other hand, each writing element 3a, 3b, 3c is held with a certain locking force in the writing state in which the writing tip portion projects from the main body body 2 and in the stored state in which the writing tip portion retracts from the main body body 2. , A positioning mechanism is provided.

That is, as shown in FIG.
As shown in FIG. 3, the side wall is provided with the convex portion 9, while the inner side wall of the guide groove 13 is provided with two concave portions 10 in the axial direction into which the convex portion 9 can be elastically fitted. The convex portion 9
In the state where the writing element 3 is engaged with the concave portion 10, a constant blocking force acts on the external force that attempts to move the writing elements 3a, 3b, 3c in the axial direction. The total blocking force of the slide blocking force and the frictional force applied between the guide projection 12 and the guide groove 13 holds the writing tool 1 and presses the writing tip portion of one writing element against the paper surface to be written. It is set to such an extent that the writing element does not inadvertently sink into the base end side of the main body body 2 against the normal force.

Next, a method of using the writing instrument 1 of this example will be described. When not used as a writing instrument, as shown in FIG. 5, each writing element 3a, 3b, 3c is positioned such that the writing tip portion (cap portion 11) thereof is recessed from the tip of the main body 2. . In this state, the protrusion 9 provided on the guide protrusion 12 on the body side of the body is the tip end side of the recesses 10 and 10 at the two axial positions of the guide groove 13 provided on the writing elements 3a, 3b and 3c side. It is fitted in the concave portion of and is prevented from shifting in the axial direction by a constant holding force.

Next, by pushing the base end of the desired writing element, the writing tip portion (cap portion 11) is slid so as to project from the tip of the main body 2, as shown in FIG. At this time, the convex portion 9 of the guide ridge 12 on the body body 2 side is fitted into the concave portion 10 on the base end side among the concave portions 10 and 10 at two locations in the axial direction of the guide groove 13 on the writing element side, and the writing element is formed. The axial displacement of is prevented by a constant holding force.

In this way, the cap 11 at the tip of the writing element to be used for writing is removed and fitted and held on the base end side of the writing element as shown in FIG. The writing instrument in which the tip writing tip portion of the desired writing element is projected from the tip of the main body 2 in this manner is used in the same manner as in the example of FIGS. 1 to 4. That is, the thumb a and the index finger b of the writer are attached and held on two sides sandwiching the top of the triangular cross section corresponding to the writing element used for writing.

At this time, since the writing tip portion is not obscured by the thumb a of the writer and becomes difficult to see, writing is easy, the pressing force by the forefinger b is effectively transmitted to the writing tip portion, and the pressing force by the forefinger b is written. The fact that the writing state is stable because no rotation moment is given to the whole and the ease of writing is remarkably improved by such a comprehensive action is similar to the example shown in FIGS. 1 to 4.

Of course, the present invention is not limited to the embodiment shown in the drawings.

For example, although not shown in the drawings, when accommodating a plurality of writing elements inside the main body 2, a so-called knock mechanism is interposed between the main body 2 and each writing element to obtain a desired writing. By pushing down the base end of the element, the writing tip part is locked in a state of protruding from the main body,
It is also possible to push down the base end of the writing element again to release the locking and return the writing element to the original storage state by the restoring force of the built-in spring.

Furthermore, in the claims of utility model and in the above description, each axial writing element is attached to the body body in a non-separable manner, which means that each writing element is attached to the body body. It does not mean that the writing elements cannot be separated, and does not mean that each writing element is not assumed to be used as an independent writing tool in a state of being separated from the main body. For example, in some embodiments, each writing element associated with the body body can be axially withdrawn for replacement or repair.

Further, the meaning of the shaft-shaped writing element includes a shaft body provided with an eraser at the tip thereof, or a body in which the correction fluid oozes out from the tip portion. If such a writing element is combined with a writing element such as an ordinary ballpoint pen as necessary to construct the writing instrument of the present invention, the "writing" work including erasing and correction becomes more rational and efficient. .

[Brief description of drawings]

FIG. 1 is an overall perspective view of a first embodiment of a writing instrument of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is an explanatory diagram of a usage state of the first embodiment.

FIG. 5 is an overall perspective view of a second embodiment of the writing instrument of the present invention.

6 is a sectional view taken along line VI-VI of FIG.

7 is a sectional view taken along line VII-VII of FIG.

FIG. 8 is an explanatory diagram of a usage state of the second embodiment.

[Explanation of symbols]

 1 Writing instrument 2 Main body 3a, 3b, 3c Writing element

Claims (2)

[Scope of utility model registration request] 1. A and the <br/> body body formed on the outer periphery cross-sectional shape of a substantially triangular, are inseparable manner is supplied with the internal portion of the body body Rutotomoni, the generally triangular in said the main body
Inside each side line corresponding to each top of the shape,
They are arranged laterally offset with respect to the axis of the day,
In addition, three shaft-like writings with a predetermined bending rigidity are required.
Each writing element is provided with an element, and each writing element is slidable in the axial direction between a writing state in which the writing point portion projects a predetermined amount with respect to the main body body and a storage state in which the writing point portion retracts from the writing state. Writing instrument, which is characterized by 2. A body body and a periphery of the body body
It is attached non-separately, and it is a predetermined song itself
It has three axial writing elements with high rigidity
The element is a substantially triangular outer peripheral cross-sectional shape in cooperation with the body body.
The cross-sectional shape is set to form a shape
It is arranged at each top of the above-mentioned triangular shape, and
The writing state in which the tip of the brush protrudes by a predetermined amount.
Axial direction between the state where the brush tip is retracted from the above state and the stored state
Writing, characterized by being slidable to
Ingredient