JPH07214971A - Grip structure in writing instruments - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a grip portion structure in a writing instrument capable of selecting the position of the grip portion according to the preference of the user. [Structure] A front outer surface of a barrel 1 connected to a front tip 5 and having a screw portion 1b on its outer front surface, and a screw portion 9 on its inner surface.
And a non-slip gripping portion 8 is arranged, and the screw portion 9 of the gripping portion 8 and the screw portion 1b of the barrel 1 are screwed together to form an inner surface of the gripping portion 8 and / or a tip 5 On the outer surface of the shaft and / or on the outer surface of the barrel 1.
By forming a, the gripper 8 is moved in the longitudinal direction,
In addition, a grip structure for a writing instrument that can be fixed. According to the present invention, a grip portion having a screw portion on its inner surface and having a non-slip property is rotatably arranged in front of the barrel 1.
Moreover, since the fixing means for the grip portion is formed, the grip portion can be moved and fixed in the longitudinal direction, and thus the position of the grip portion can be selected according to the preference of the user. Is to have.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grip portion structure in a writing instrument that allows the position of the grip portion to be selected according to the preference of the user.

[0002]

2. Description of the Related Art Conventionally, the gripping portion of a writing instrument has been devised in shape so as to prevent fatigue caused by long-time writing even a little.
The position of the grip portion can be changed, the diameter is increased, the position of the center of gravity is ergonomically determined according to the weight of the writing instrument, and a slip stopper is arranged.

[0003]

However, the preference of the gripping position of the writing tool during writing varies widely depending on the user. Some people prefer to grip and write at a portion close to the writing tip, and some prefer to grip at a portion far from the writing tip to write. However, in the conventional grip part structure of a writing instrument, a structure capable of selecting the position of the grip part is not known. Therefore, according to the present invention, the position of the grip portion can be selected and fixed,
An object of the present invention is to provide a grip portion structure in a writing instrument that can meet user's preference.

[0004]

According to the present invention, a grip portion having a screw portion on its inner surface and having a non-slip property is arranged in front of a shaft cylinder in which a guide member is arranged, and the grip portion of the grip portion is provided. The screw portion and the screw portion formed inside the grip portion and formed in the engagement body connected to the front tool in front of the screw portion are screwed together, and the inner surface of the grip portion and / or the outer surface of the grip portion and / or By forming a protrusion on the outer surface of the tip tool and / or the inner surface of the barrel and / or the outer surface of the guide member that serves as a fixing means for the grip, the grip can be moved and fixed in the longitudinal direction. The first aspect of the present invention is the grip portion structure of the writing instrument, and a grip portion having a screw portion on its inner surface and having a non-slip property is disposed in front of the barrel, and the screw portion of the grip portion and the grip portion are And a screw part formed on an engaging body which is arranged in the forward direction and is connected to a front tool in front of the front part, is screwed into the grip part, A writing instrument capable of moving and fixing the grip portion in the longitudinal direction by forming a protrusion serving as a fixing means of the grip portion on the inner surface and / or the outer surface of the tip and / or the outer surface of the barrel. In the second gist of the present invention, there is provided a grip part having a non-slip property, which has a screw part on an inner surface of a front outer surface of a barrel which is continuously provided with a front tip and has a screw part on a front outer surface thereof. Is arranged, and the screw portion of the grip portion and the screw portion of the barrel are screwed together, and the grip portion is fixed to the inner surface of the grip portion and / or the outer surface of the tip and / or the outer surface of the barrel. In the third aspect of the present invention, the grip portion structure in a writing instrument that allows the grip portion to be moved and fixed in the longitudinal direction by forming a protruding portion is defined as any of the first to third aspects. A number of annular grooves or protrusions are formed on the member that abuts the protrusion. The grip portion structure in Kigu a fourth aspect, consecutively provided and forward earlier instrument,
A grip portion having a screw portion on its inner surface and having a non-slip property is arranged on the front outer surface of a barrel having a screw portion on its front outer surface, and the screw portion of the grip portion and the screw portion of the barrel are screwed together. Sir,
One end of an elastic pressure member having a clamping force in the axial direction is fixed to the outer surface of the rear portion of the grip portion, and the other end of the elastic pressure member is elastically brought into pressure contact with the outer surface of the shaft cylinder, so that the grip portion moves in the longitudinal direction. The grip structure of a writing instrument that can be moved and fixed is defined as the fifth gist, and is connected to a front tip,
A grip portion having a screw portion on its inner surface and having a non-slip property is arranged on the front outer surface of a barrel having a screw portion on its front outer surface, and the screw portion of the grip portion and the screw portion of the barrel are screwed together. Sir,
By forming a ridge on the outer surface of the shaft cylinder and by forming a plurality of longitudinal projections on the inner surface of the grip portion, and by always engaging the longitudinal projection of the grip portion with the ridge of the shaft cylinder, A sixth gist is a grip portion structure in a writing instrument that can move and fix the portion in the longitudinal direction.

FIG. 1 shows an embodiment in which the present invention is applied to a ball-point pen. Inside a barrel 1, a writing portion (ball) 2 is provided at the tip.
A central shaft 3 (having ink stored therein) is stored. Reference numeral 4 is a guide member. By disposing a rear portion of a gripping portion 8 described later between the guide member 4 and the shaft cylinder 1, the gripping portion 8 can be moved more stably in the longitudinal direction. Is something that can be done. Reference numeral 5 is a tip, reference numeral 7 is an engaging body 7 having a screw portion 6 on its outer surface, and the engaging body 7 has one end on the tip 5.
Further, the other end is fixed to the guide member 4. The engagement body 7 may be formed integrally with the tip 5 or the guide member 4. Reference numeral 8 is a grip portion having a slip resistance,
The grip portion 8 has a screw portion 9 that engages with the engagement portion 6 of the engagement body 7 on its inner surface, and the grip portion 8 can be moved in the longitudinal direction by screwing these. .

Examples of the material of the grip portion 8 include thermoplastic elastomer, silicon rubber, vinyl chloride, urethane, styrofoam, brass, phosphor bronze, wood, and the like.
The meaning of "having non-slip properties" is that it is made of a material having non-slip properties such as a thermoplastic elastomer, a silicone resin, or wood, or a material having no anti-slip properties. , A pattern such as knurling or a lattice is formed on the surface by chemical treatment, mechanical treatment, physical treatment, etc., or a large number of small projections are formed, the surface is covered with cloth, the surface is thermoplastic Elastomers, those treated with silicone resin that has a non-slip property, those that have a gradually enlarged outer shape as shown in FIG. It means both. Further, the grip portion 8 may be colorless or colored.

In FIG. 1, reference numeral 5a is a protruding portion formed on the outer surface of the tip 5, and when the protruding portion 5a abuts the inner surface of the front portion of the grip portion 8, the grip portion 8 is fixed by its frictional resistance. Will be done. That is, the protruding portion 5a functions as a fixing means for the grip portion 8. The protrusion 5a may be formed integrally with the tip 5, or may be a separate body (for example, formed by fixing a ring member to the tip).
You may form with. The protrusion 5a may be a plurality of dot-shaped protrusions, a large number of protrusions formed on the circumference, or an annular protrusion.
In this example, the protruding portion is the inner surface of the barrel 1 and the guide member 4
It may be formed on any one or a plurality of members of the outer surface, the front inner surface of the grip portion 8, the rear inner surface of the grip portion 8, and the rear outer surface of the grip portion 8. In addition to the ballpoint pen, the present invention can be applied to various writing instruments such as a mechanical pencil, a fountain pen, and a marking pen.

Next, a method of moving and fixing the grip portion 8 in the longitudinal direction in the embodiment shown in FIG. 1 will be described. In the state of FIG. 1, the grip portion 8 (or the shaft cylinder 1 or the tip tool 5) is gripped to hold the shaft cylinder 1 or the tip tool 5 (or the grip portion 8).
When is rotated, the tip 5 and the writing portion 2 (or the grip portion 8) advance together with the shaft cylinder 1, and when the rotation is stopped at an arbitrary position, the state shown in FIG. Change. At this time, since the protruding portion 5a formed on the tip 5 is in contact with the inner surface of the grip portion 8, the frictional resistance is large and the writing portion 2 does not move backward even when a writing pressure is applied.

When the rotation is further continued from the state of FIG. 2, the writing unit 2 is in the state of FIG. 3 protected by the gripping unit 8, but the writing unit 2 is protected by the gripping unit 8 in the present invention. It is not mandatory.

FIG. 4 shows another embodiment of the present invention, which is basically the same as the embodiment of FIG. The difference lies in the fixing means of the grip portion 8. That is, this example is an example in which the protruding portion 8a is formed on the outer surface of the rear portion of the grip portion 8. You may combine this protrusion part 8a and the protrusion part 5a of the front tool 5 of FIG. The method and shape of forming the protrusions are the same as in the example of FIG.

FIG. 5 shows a protrusion 8 on the inner surface of the front portion of the grip portion 8.
This is an example in which a large number of annular grooves 5b that engage with the protruding portions 8a are provided on the outer surface of the tip 5 in the case of forming a. In this example, the grip portion 8 can be more reliably fixed as compared with the examples described above. An annular protrusion may be used instead of the annular groove 5b in this example. Further, in this example, the protrusion 8a is formed on the inner surface of the front portion of the grip portion 8 and the annular groove 5b is formed on the tip tool 5, but the protrusion is formed on the inner surface and / or the outer surface of the rear portion of the grip portion 8. An annular groove (or an annular protrusion) may be formed on the outer surface of the guide member 4 and / or the inner surface of the barrel 1, or this example may be combined with the above example. The method and shape of forming the protrusions are the same as in the example of FIG.

FIG. 6 shows another embodiment of the present invention, which is basically the same as the embodiment of FIG. The difference is that in the embodiment of FIG. 1, the rear portion of the grip portion 8 is arranged between the barrel 1 and the guide member 4, whereas in the embodiment of FIG. 6, the rear portion of the grip portion 8 is arranged. Are arranged on the outer surface of the barrel 1, the guide member is removed, and the engagement body 7 is fixed by the barrel 1 and the tip 5. Gripping part 8
The fixing means is substantially the same as that of the embodiment of FIG. 1, but in this example, the protruding portion 7a is formed on the outer surface of the engaging body 7. In this example, the protruding portion may be formed on the inner surface of the front portion of the grip portion 8 and / or the outer surface of the rear portion of the barrel 1. The method and shape of forming the protrusions are the same as in the example of FIG.

The fixing means of the grip portion 8 in this example can be variously adopted as in the above example. In the example of FIG. 7, the grip portion 8
The protrusion 8a is formed on the inner surface of the rear portion of the.

In the example of FIG. 8, there is shown a modified example in which the protruding portion 8a is formed on the inner surface of the rear portion of the grip portion 8, and a large number of annular grooves 1a which engage with the protruding portion 8a are provided in the barrel 1. This is an example provided on the outer surface. In this example, the grip part 8 can be more reliably fixed. An annular protrusion may be used instead of the annular groove 1a in this example. Further, in this example, the protrusion 8a is formed on the inner surface of the rear portion of the grip portion 8 and the annular groove 1a is formed on the shaft tube 1. However, the protrusion portion is formed on the inner surface of the front portion of the grip portion 8, and An annular groove (or annular protrusion) may be formed on the outer surface of the united body 7, or a protrusion may be formed on the outer surface of the barrel 1 and / or the outer surface of the engaging body 7, and the annular groove (or Alternatively, an annular protrusion) may be formed, or this example may be combined with the above-described example.

FIG. 9 shows another embodiment of the present invention. The main points of this example different from the example of FIG. 6 are that the barrel 1 is fixed to the tip 5 and the engaging body. And the point that the screw portion 1b is provided on the outer surface of the shaft cylinder 1 and the screw portion 9 of the grip portion 8 is screwed into the screw portion 1b, and the writing portion 2 is arranged behind the center shaft 3. A well-known retracting mechanism (not shown, as an example, refer to Japanese Patent Publication No. 34-7181) makes the writing tool freely retractable from the tip 5 (10 in the drawing indicates that the writing section 2 is always in the inner direction of the barrel 1). It is an elastic member such as a spring for biasing). The fixing means of the grip portion 8 is almost the same as that of the embodiment shown in FIG.

That is, in this example, the protruding portion 5a is formed on the outer surface of the rear portion of the tip 5. The method and shape of forming the protrusions are the same as in the example of FIG.

The fixing means of the grip portion 8 in this example can be variously adopted as in the above example. 10 shows an example in which the protruding portion 1c is formed on the barrel 1. In FIG. 11, the protruding portion 8a is formed on the inner surface of the front portion and the inner surface of the rear portion of the grip portion 8 (the inner surface of the front portion of the grip portion 8 or the rear portion). It may be any one of the inner surface of the part). In FIG. 12, a protruding part 8a is formed on the inner surface of the rear part of the grip part 8, and the protruding part is
This is an example in which a is locked in an annular groove 1a formed on the outer surface of the barrel 1. In this example, the grip part 8 can be more reliably fixed. An annular protrusion may be used instead of the annular groove 1a in this example. Further, in the present example, the grip portion 8
On the inner surface of the rear part of the shaft 8 and the annular groove 1a on the barrel 1.
However, a protrusion may be formed on the inner surface of the front portion of the grip portion 8 and an annular groove (or an annular protrusion) may be formed on the outer surface of the tip tool 5, or the protrusion may be formed on the outer surface of the barrel 1. An annular groove (or an annular protrusion) may be formed on the inner surface of the grip portion 8, or this example may be combined with the above example.

In FIG. 13, one end of an elastic pressure member 11 having a clamping force in the axial direction, such as a leaf spring or a spiral, is fixed to the outer surface of the rear portion of the grip portion 8, and the other end of the elastic pressure member 11 is of the barrel 1. It is like being elastically pressed against the outer surface,
The elastic pressure member 11 also moves with the movement of the grip portion 8. However, even when the movement of the grip portion 8 is stopped, the elastic pressure member 11 is moved.
Since the other end is always elastically pressed against the outer surface of the barrel 1, the grip portion 8 can be fixed securely. In addition, you may combine this example and the above-mentioned protrusion.

In FIG. 14, a ridge 1d is formed on the outer surface of the shaft tube 1 on the circumference, and a plurality of ridges (4 in the figure are provided on the inner surface of the grip portion 8.
Individual) longitudinal projections 8b are formed so that the longitudinal projections 8b of the grip portion 8 and the ridges 1d of the barrel 1 are always engaged, and the grip portion 8 is given an appropriate frictional resistance. Is. In addition, you may form a protrusion in the front tool 5.

Various modifications other than those described above are possible in the present invention, and FIGS. 15 and 16 show examples thereof. FIG. 15 shows an example in which the outer diameter becomes smaller as it goes forward, and in this example, grid-like grooves were formed on the surface. FIG. 16 shows an example in which the outer shape is drum-shaped, and in this example, many small protrusions are formed on the surface.

[0021]

As described above, according to the present invention, the grip portion having the screw portion on the inner surface thereof and having the anti-slip property is rotatably arranged in the front of the barrel, and the fixing means for the grip portion is formed. This has the effect that the grip portion can be moved and fixed in the longitudinal direction, and thus the position of the grip portion can be selected according to the preference of the user.

[Brief description of drawings]

FIG. 1 is a partial vertical cross-sectional view showing a first embodiment.

FIG. 2 is an operation explanatory diagram of the first embodiment.

FIG. 3 is an operation explanatory diagram of the first embodiment.

FIG. 4 is a partial vertical cross-sectional view showing another embodiment with a part omitted.

FIG. 5 is a partial vertical cross-sectional view showing another embodiment with a part omitted.

FIG. 6 is a partial vertical cross-sectional view showing another embodiment with a part omitted.

FIG. 7 is a partial vertical cross-sectional view showing another embodiment with a part omitted.

FIG. 8 is a partial vertical cross-sectional view showing another embodiment with a part omitted.

FIG. 9 is a partial vertical cross-sectional view showing another embodiment with a part omitted.

FIG. 10 is a partial vertical cross-sectional view showing another embodiment with a part omitted.

FIG. 11 is a partial vertical cross-sectional view showing another embodiment with a part omitted.

FIG. 12 is a partial vertical cross-sectional view showing another embodiment with a part omitted.

FIG. 13 is a partial vertical cross-sectional view showing another embodiment with a part omitted.

FIG. 14 is an exploded perspective view showing a main part of another embodiment with a part cut away.

FIG. 15 is a partially cutaway perspective view showing another embodiment of the grip portion.

FIG. 16 is a partially cutaway perspective view showing another embodiment of the grip portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shaft cylinder 1a Annular groove 1b Screw part 1c Projection part 1d Projection 2 Writing part 3 Medium shaft 4 Guide member 5 Tip 5a Projection part 5b Annular groove 6 Screw part 7 Engagement body 7a Projection part 8 Grip part 8a Projection part 8b Longitudinal direction Projection 9 Screw 10 Repulsion member 11 Repression member

Claims (6)

[Claims] 1. A grip part having a screw part on its inner surface and having a non-slip property is arranged in front of a shaft cylinder in which a guide member is arranged, and the screw part of the grip part and the inside of the grip part. And a screw portion formed on an engaging body that is arranged continuously with the front tool in front thereof is screwed together, and the inner surface of the grip portion and / or the outer surface of the grip portion and / or the outer surface of the tip tool and / or A grip part structure in a writing instrument in which a grip part can be moved and fixed in the longitudinal direction by forming a protrusion serving as a fixing means of the grip part on the inner surface of the barrel and / or the outer surface of the guide member. 2. A gripper having a screw part on its inner surface and having a non-slip property is arranged in front of the barrel, and is arranged inward of the screw part and the grip of the gripper, and a front tool in front of it is provided. And a screw portion formed on an engaging body connected to the screw portion are screwed together to form a protrusion on the inner surface of the grip portion and / or the outer surface of the tip and / or the outer surface of the barrel, which serves as fixing means for the grip portion. By doing so, the grip portion structure in the writing instrument can be moved and fixed in the longitudinal direction. 3. A grip part having a screw part on its inner surface and having a non-slip property is arranged on the front outer surface of a barrel connected to a front tip and having a screw part on its front outer surface. The threaded portion of the shaft portion and the threaded portion of the barrel are screwed together to form a protrusion on the inner surface of the grip portion and / or the outer surface of the tip and / or the outer surface of the barrel, which serves as fixing means for the grip portion. By doing so, the grip portion structure in the writing instrument is such that the grip portion can be moved and fixed in the longitudinal direction. 4. The grip portion structure for a writing instrument according to claim 1, wherein a large number of annular grooves or annular projections are formed in a member that abuts the protruding portion. 5. A grip part having a screw part on its inner surface and having a non-slip property is arranged on the front outer surface of a barrel connected to a front tip and having a screw part on its front outer surface. The screw portion of the shaft portion and the screw portion of the barrel are screwed together, and one end of the elastic pressure member having a tightening force in the axial direction is fixed to the outer surface of the rear portion of the grip portion, and the other end of the elastic pressure member is of the axial cylinder. By elastically pressing against the outer surface, the gripping part is moved in the longitudinal direction, and
A grip part structure in a writing instrument that can be fixed. 6. A grip part having a screw part on its inner surface and having a non-slip property is arranged on the front outer surface of a barrel connected to a front tip and having a screw part on its front outer surface. The threaded portion of the shaft portion and the threaded portion of the barrel are screwed together to form a ridge on the outer surface of the barrel, and a plurality of longitudinal projections are formed on the inner surface of the grip portion, so that the grip portion is always in the longitudinal direction. A grip part structure in a writing instrument, wherein the grip part can be moved and fixed in the longitudinal direction by engaging the projection and the ridge of the barrel.