JPH0648086A - Pen grip part adjustment device - Google Patents

Abstract

PURPOSE:To provide a pen grip part adjustment device capable of changing the shape of a grip part according to a user's taste. CONSTITUTION:In the front part of a shaft cylinder 1 are a twistable engaging member 3 and a slider 4, outside the member 3, which engages with the engaging member 3 and which can move longitudinally. Outside the slider 4 is an elastic adjustable-body 6. The elastic adjustable-body 6 is longitudinally adjusted by twisting the engaging member 3, thereby moving the slider 4 longitudinally without twisting it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gripping part changing device for a writing instrument which can change the shape of the gripping part 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.
It has been devised to increase the diameter, ergonomically determine the position of the center of gravity according to the weight of the writing instrument, and arrange anti-slip.

[Problems to be Solved by the Invention]

However, the gripping position of the writing instrument grips the front end or the middle depending on the preference of the user, but the gripping part cannot be changed, and there is still a problem in that it causes fatigue due to writing for a long time. Was left. Therefore, the present invention provides a gripper variable device for a writing instrument that can change the shape of the gripper according to the preference of the user and eliminates fatigue caused by long-time writing as much as possible.

[0004]

According to the present invention, a rotatable engaging member is arranged in front of a barrel, and the engaging member is engaged with the engaging member outside the engaging member so that the engaging member is movable in the longitudinal direction. Place the sliding body,
An elastic variable body is arranged outside the sliding body, and by rotating the engaging member, the sliding body can be moved in the longitudinal direction without rotating, so that the elastic variable body can be changed in the longitudinal direction. According to a first aspect of the invention, the gripping portion varying device for a writing instrument is provided, in which a rotatable engaging member that engages with the shaft cylinder is disposed, and the engaging member is engaged in front of the engagement member. The expansion assisting means is disposed, the elastic variable body is disposed outside the expansion assisting means and the engaging member, and the engaging member is rotated to move the engaging member in the longitudinal direction. A second aspect of the invention is a gripper varying device for a writing instrument, which is capable of changing the elastic variable body in a radial direction by the cooperation of the engaging member and the expansion assisting means. And an elastic variable body is arranged outside the engaging member, and the elastic variable body and the engaging member are arranged. A spiral spring having an outer end fixed to the elastic variable body and a central end fixed to a rotating member is arranged, and the engaging member is rotated to change the spring force of the spiral spring. A third aspect of the invention is a gripper varying device for a writing instrument that can change an elastic variable body in a radial direction. A rotatable engaging member is arranged in front of a shaft cylinder, and the engaging member is provided outside the engaging member. The sliding body that engages with the mating member is non-rotatably arranged,
By disposing the elastic variable body outside the sliding body and rotating the engaging member, the elastic variable body is pressed by the engaging member, or the sliding body is moved in the longitudinal direction and bent. A fourth aspect of the invention is a gripper varying device for a writing instrument that can change the elastic variable body in a radial direction. A rotatable engaging member is arranged in front of a barrel, and an outside of the engaging member is provided. A sliding body that is engaged with the engaging member and is movable in the longitudinal direction, a variable body is arranged in front of the sliding body, and an elastic variable body is arranged outside the variable body and the sliding body. , A gripping portion of a writing instrument capable of moving the sliding body in the longitudinal direction without rotating by rotating the engaging member, pressing the variable body, and changing the elastic variable body in the radial direction. The variable device is the fifth gist, and the rotatable engagement member is arranged in front of the barrel. Engages the engaging member outward of the engaging member, arranged slide movable longitudinally arranged spreading auxiliary means for the engaging member and engage the front of the sliding body,
An elastic variable body is arranged outside the expansion assisting means and the engaging member, and the sliding member is moved in the longitudinal direction by rotating the engaging member, and at the same time, the engaging member and the expanding member are expanded. A sixth aspect of the invention is a gripper varying device for a writing instrument, which is capable of changing the elastic variable body in a radial direction in cooperation with an auxiliary means.
Is the summary of.

1 and 2 show a first embodiment of the present invention, in which reference numeral 1 is a shaft cylinder made of synthetic resin, metal or the like. Engagement part 2 such as
The engaging member 3 made of synthetic resin, metal, or the like is fixed. The engagement member 3 is rotatable in association with the rotation of the barrel 1. Therefore, the shaft cylinder 1 and the engaging member 3 may be integrally formed. Reference numeral 4 is a sliding body disposed outside the engaging member 3 and made of synthetic resin, synthetic rubber, metal or the like, and the sliding body 4 engages with the engaging portion 2 of the engaging member 3. It has an engaging part 5 such as a matching screw and is movable in the longitudinal direction. Although various shapes of the sliding body 4 can be adopted, when the elastic variable body 6 to be described later is gripped, the elastic variable body 6 is slightly recessed inward, so that the outer surface shape (smooth in the figure is considered in consideration of this point. It is preferable that the recesses are formed. Further, reference numeral 6 is an elastic variable body which is arranged outside the sliding body 4 and is made of silicone rubber, thermoplastic elastomer or the like. The surface shape of the elastic variable body 6 can be variously adopted, such as a rough surface, forming knurls by projections or depressions, forming a large number of small projections,
The surface may be colored.

Reference numeral 7 is for smoothing the movement of the sliding body 4 in the longitudinal direction, that is, smooth sliding of the sliding body 4 due to frictional resistance between the sliding body 4 and the elastic variable body 6. It is a leaf spring made of metal, synthetic resin, or the like for preventing the sliding movement and / or the elastic variable body 6
It can also be removed by subjecting it to a surface treatment or devising its shape. Further, reference numeral 8 is a tip member made of metal, synthetic resin or the like, and 9 is a ballpoint pen having a ballpoint pen tip 10 at the tip and an ink containing tube 11 at the back. In the present invention, other than the ballpoint pen, for example, a mechanical pencil, It can be applied to various writing instruments such as fountain pens and marking pens.

In order to change the elastic variable body 6 in the longitudinal direction, the elastic variable body 6 is lightly gripped and the barrel 1 is rotated (when the front member 8 and the engaging member 3 are fixedly integrated, the front member is rotated). 8 may be rotated), the engaging member 3 also rotates,
With the rotation of the engaging member 3, the sliding body 4 moves in the longitudinal direction without rotating, and the large diameter portion of the elastic variable body 6 changes to the front state as shown in FIG.

3 and 4 show a second embodiment of the present invention. The same parts as those in the first embodiment are designated by the same reference numerals (the same applies hereinafter). The main points different from the first embodiment are that the slidable body 4 is formed in an elongated shape, and rotation prevention of the slidable body 4 is formed in the slit 8A formed at the rear of the tip member 8 on the inner front surface of the slidable body 4. This was done by engaging the protrusions 4A (see FIG. 4).
And the point where the outer surface of the rear portion of the engaging member 3 is exposed. Therefore, in this example, by rotating the outer surface of the rear portion of the engaging member 3, the sliding body 4 is moved in the longitudinal direction, and as a result, the elastic variable body 6 can be changed in the longitudinal direction. It is a thing.

FIG. 5 shows a third embodiment of the present invention.
The main points different from the first embodiment are that the sliding body 4 is formed elongated, that the rear end of the engaging member 3 is projected from the rear end of the shaft cylinder 1, and that the sliding body 4 is prevented from rotating. Similar to the second embodiment, the point formed by the slit 8A of the tip member 8 and the projection 4A of the sliding body 4 and the engagement between the engaging member 3 and the sliding body 4 are the engaging portion 2 by the screw of the engaging member 3. And the engagement portion 5 formed by the protrusion of the sliding body 4 and the front end portion of the engagement member 3 being fixed to the tip member 8. Therefore, in this example, by rotating the rear end portion or the tip member 8 of the engagement member 3, the sliding body 4 is moved in the longitudinal direction, and as a result, the elastic variable body 6 can be changed in the longitudinal direction. It was made possible.

FIG. 6 shows a fourth embodiment of the present invention.
The difference from the third embodiment is that the engaging portion 2 of the engaging member 3 is formed as a protrusion, and the protrusion is engaged with the engaging portion 5 made of a screw of the sliding body 4. The operation for changing the elastic variable body 6 in the longitudinal direction is the same as in the third embodiment.

7 and 8 show the fifth and sixth embodiments of the present invention, which are basically similar in configuration to the second embodiment, but the main differences are as follows. Is. That is,
The rotation of the sliding body 4 is prevented by engaging and locking the comb-shaped groove 8B formed at the tip of the sliding body 4 with the comb-shaped groove 8B formed on the rear outer surface of the front member 8. (FIG. 7), and in the sixth embodiment of FIG. 8, the engagement of the comb-teeth-shaped groove 8B of the tip member 8 with the comb-teeth-shaped groove 4B of the sliding body 4 in the fifth embodiment of FIG. The locking is done at a position closer to the axis.

FIG. 9 shows a seventh embodiment of the present invention.
Inside a barrel 1 having an engaging portion 1A such as a screw on its inner surface, an engaging portion 2 such as a screw engaging with the engaging portion 1A of the barrel 1 is provided, and its rear end is the rear end of the barrel 1. A rotatable engaging member 3 having a projecting portion 3A is arranged on the outer surface of the front portion of the front portion of the front member 8 so as to project further, and the front end of the engaging member 3 is fixed to the rear portion of the front member 8. The expansion assisting means 12 made of metal, synthetic resin, synthetic rubber or the like having a number of slits and an inclined step portion 12A in the middle is arranged. An elastic variable body 6 is arranged outside the expansion assisting means 12 and the engaging member 3. In order to change the elastic variable body 6, when the shaft cylinder 1 is gripped and the protruding portion of the engagement member 3 from the shaft cylinder 1 is rotated, the engagement member 3 moves forward. When moving forward, the projection 3A of the engaging member 3 causes the expansion assisting means 1
2, the diameter of the elastic variable body 6 is expanded and changed in the radial direction by pushing up the inclined stepped portion 12A of the second outward, that is, by the cooperation of the engagement member 3 and the expansion assisting means 12. Become.

FIG. 11 shows an eighth embodiment of the present invention. The main difference from the seventh embodiment is that an inclined bent portion having an appropriate number of slits in the longitudinal direction is provided in front of the engaging member 3. 3B
On the other hand, on the other hand, at the rear end of the tip member 8, the expansion assisting means 12B
Is fixed to the elastic variable body 6 via a gap S, and the tip of the inclined bent portion 3B is arranged in the gap S. Therefore, in this example, when the barrel 1 is gripped and the rear end portion of the engaging member 3 is rotated, the engaging member 3 advances, and when the engaging member 3 advances, the engaging member 3 The inclined bent portion 3B is pushed outward by the expansion assisting means 12B, that is, the diameter of the elastic variable body 6 expands in the radial direction by the cooperation of the engaging member 3 and the expansion assisting means 12B. It changes.

FIG. 12 shows a ninth embodiment of the present invention, in which an engaging member 3 is rotatably arranged in a barrel 1 and an elastic variable body 6 is arranged outside the engaging member 3. A spiral spring 13 is arranged between the elastic variable body 6 and the engaging member 3. The outer end of the spiral spring 13 is fixed to the elastic variable body 6, and the center end thereof is fixed to the engaging member 3. Therefore, in order to change the elastic variable body 6 in the radial direction, when the engaging member 3 is rotated, the spring force of the spiral spring 13 changes, and the elastic variable body 6 expands or contracts in the radial direction. It is something that There are various conceivable technical means for locking the spring force of the spiral spring 13 in an arbitrary state, but in the drawing, the engaging member 3 is pulled rearward in the drawing to show the rear engaging member. 3, the spiral spring 13 is appropriately wound, and then the engaging member 3 is pushed forward. At this time, the projection 3C provided on the engaging member 3 is provided with the groove 1 provided on the inner surface of the rear end of the barrel 1.
This was done by engaging B. In this example, in order to rotate the engaging member 3, as described above, the engaging member 3
In addition to directly rotating, the front member 8 fixed to the engaging member 3 may be rotated.

FIG. 13 shows a tenth embodiment of the present invention, which is rotatable in front of the barrel 1 and has an engaging portion 2 such as a screw.
An engaging member 3 that is connected to or operatively connected to the rear end of the elastic variable body 6 described later is disposed, and the engaging portion 2 of the engaging member 3 is provided outside the engaging member 3. A sliding body 4 having an engaging portion 5 such as a screw to be engaged is arranged so as not to rotate by fixing its front end to a tip member 8, and an elastic variable body 6 is arranged outside the sliding body 4. There is. Therefore, the elastic variable body 6
In order to change the radial direction of the engaging member 3 by rotating the engaging member 3, the engaging member 3 moves forward. When pressed forward, the diameter of the elastic variable body 6 expands and changes in the radial direction.
It becomes the state of 4.

FIG. 15 shows an eleventh embodiment of the present invention. The main points different from the tenth embodiment are that the sliding body 4 is movable in the longitudinal direction and the elastic variable body 6 is related. Composite material 3
Is the point where no connection or working connection is made. In this example, in order to change the elastic variable body 6 in the radial direction, the engaging member 3 is rotated, and the sliding body 4 is moved forward by the rotation of the engaging member 3, so that the front end portion of the sliding body 4 moves. Since the sliding member 4 is fixed to the tip member 8, the sliding member 4 is bent outward, and the bending of the sliding member 4 causes the diameter of the elastic variable member 6 to expand and change in the radial direction.

FIG. 16 shows a twelfth embodiment of the present invention. An engaging member 3 which is rotatable and has an engaging portion 2 such as a screw is arranged in front of the barrel 1 and is engaged with the engaging member 3. An engaging portion 5 such as a screw that engages with the engaging portion 2 of the engaging member 3 is provided outside the member 3, and a sliding body 4 that is movable in the longitudinal direction is arranged. Is a fluid, a leaf spring, etc.
The variable body 14 connected to or operatively connected to the front end of the elastic body 6 is arranged outside the variable body 14 and the sliding body 4. Therefore, in order to change the elastic variable body 6 in the radial direction, when the engagement member 3 is rotated, the sliding body 4 advances, but the forward movement of the sliding body 4 compresses the variable body 14. Then, this compressive force is converted into an outward expansion force, and as a result, the diameter of the elastic variable body 6 expands and changes in the radial direction, resulting in the state of FIG.

FIG. 18 shows a thirteenth embodiment of the present invention, which is rotatable in front of the barrel 1 and has an engaging portion 2 such as a screw.
And an engaging portion 5 such as a screw that engages with the engaging portion 2 of the engaging member 3 is provided outside the engaging member 3.
A sliding body 4 having an outwardly inclined comb tooth portion 4C and movable in the longitudinal direction is arranged at the front portion thereof. The expansion assisting means 8C, which is a comb tooth part that is inclined and engages with the comb tooth part 4C of the sliding body 4, is arranged, and the expansion assisting means 8C and the engaging member 3 are elastically variable outside. The body 6 is arranged. Therefore, in order to change the elastic variable body 6 in the radial direction, the engaging member 3
When the sliding body 4 is rotated, the sliding body 4 moves forward, but when the sliding body 4 moves forward, the comb tooth portion 4C of the sliding body 4 cooperates with the expansion assisting means 8C and is pushed outward. As a result, the diameter of the elastic variable body 6 expands and changes in the radial direction.
It becomes the state of 9.

[0019]

According to the present invention, by rotating the engaging member, "the sliding member is moved in the longitudinal direction, the elastic variable member is changed in the longitudinal direction," or "the engaging member is moved in the longitudinal direction. , The elastic variable body is changed in the longitudinal direction by the cooperation of the engaging member and the expansion assisting means "," The spring force of the spiral spring is changed, and the elastic variable body is changed in the longitudinal direction ",
"Press the elastic variable body or move the sliding body in the longitudinal direction,
By bending and changing the elastic variable body in the longitudinal direction, "
"By moving the sliding body in the longitudinal direction and pressing the variable body to change the elastic variable body in the longitudinal direction," or "by moving the sliding body in the longitudinal direction and cooperating with the expansion assisting means, Since the elastic variable body is changed in the longitudinal direction, it has an effect that the elastic variable body serving as the grip portion can be changed according to the preference of the user.

[Brief description of drawings]

FIG. 1 is a partially omitted vertical sectional view showing a first embodiment.

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

FIG. 3 is a partially omitted vertical sectional view showing an essential part of a second embodiment.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a partially omitted vertical sectional view showing an essential part of the third embodiment.

FIG. 6 is a partially omitted vertical sectional view showing an essential part of a fourth embodiment.

FIG. 7 is a partially omitted vertical sectional view showing an essential part of a fifth embodiment.

FIG. 8 is a partially omitted vertical sectional view showing an essential part of a sixth embodiment.

FIG. 9 is a partially omitted vertical sectional view showing a seventh embodiment.

FIG. 10 is an operation explanatory view of the seventh embodiment.

FIG. 11 is a partially omitted vertical sectional view showing an essential part of an eighth embodiment.

FIG. 12 is a partially omitted vertical sectional view showing an essential part of a ninth embodiment.

FIG. 13 is a partially omitted vertical sectional view showing a tenth embodiment.

FIG. 14 is an operation explanatory diagram of the tenth embodiment.

FIG. 15 is a partially omitted vertical sectional view showing an essential part of the eleventh embodiment.

FIG. 16 is a partially omitted vertical sectional view showing a twelfth embodiment.

FIG. 17 is an operation explanatory diagram of the twelfth embodiment.

FIG. 18 is a partially omitted vertical sectional view showing a thirteenth embodiment.

FIG. 19 is an operation explanatory view of the thirteenth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shaft cylinder 1A Engagement part 1B Groove 2 Engagement part 3 Engagement member 3A Projection part 3B Inclined bending part 3C Projection 4 Sliding body 4A Projection 4B Comb tooth-like groove 4C Comb tooth part 5 Engaging part 6 Elastic variable Body 7 Leaf spring 8 Tip member 8A Slit 8B Comb-shaped groove 8C Expansion assisting means 9 Ballpoint pen 10 Ballpoint pen tip 11 Ink storage tube 12 Expansion assisting means 12A Inclined step 12B Expansion assisting means S Gap 13 Spiral spring 14 Variable body

Claims (6)

[Claims] Claims: 1. A rotatable engaging member is arranged in front of a barrel, and a sliding body which is engaged with the engaging member outside the engaging member and is movable in the longitudinal direction is arranged. By disposing an elastic variable body outside the moving body and rotating the engaging member, the sliding body can be moved in the longitudinal direction without rotating, and the elastic variable body can be changed in the longitudinal direction. Variable gripper for writing instruments. 2. A rotatable engagement member that engages with the shaft cylinder is arranged in the shaft cylinder, and expansion assisting means that engages with the engagement member is arranged in front of the engagement member, An elastic variable body is disposed outside the expansion assisting means and the engaging member, and the engaging member is rotated in the longitudinal direction by rotating the engaging member, and at the same time, the engaging member and the expanding assist are expanded. A gripper changing device for a writing instrument, which is capable of changing the elastic variable body in a radial direction in cooperation with a means. 3. An engaging member is arranged in the shaft cylinder, an elastic variable body is arranged outside the engaging member, and an elastic variable body is provided with an outer end between the elastic variable body and the engaging member. A spiral spring having a center end fixed to an engagement member is arranged, and the spring force of the spiral spring is changed by rotating the engagement member, so that the elastic variable body is changed in the radial direction. A gripper varying device for a writing instrument that can be used. 4. A rotatable engaging member is arranged in front of the shaft cylinder, and a sliding body engaging with the engaging member is non-rotatably arranged outside the engaging member. By disposing an elastic variable body on the elastic member and rotating the engaging member, the elastic member is pressed by the engaging member, or the sliding member is moved in the longitudinal direction and is bent to bend the elastic variable member. A gripper varying device for a writing instrument that can change in the radial direction. 5. A rotatable engaging member is arranged in front of the barrel, and a sliding body that is engaged with the engaging member outside the engaging member and is movable in the longitudinal direction is arranged. A variable body is arranged in front of the moving body, an elastic variable body is arranged outside the variable body and the sliding body, and the engaging member is rotated to move the sliding body in the longitudinal direction without rotating. A gripper varying device for a writing instrument, which is capable of pressing the variable body and changing the elastic variable body in the radial direction. 6. A rotatable engaging member is arranged in front of the barrel, and a sliding body that is engaged with the engaging member outside the engaging member and is movable in the longitudinal direction is arranged. By expanding the expansion assisting means that engages with the engaging member in front of the moving body, disposing the elastic variable body outside the expanding assisting means and the engaging member, and rotating the engaging member. A gripper varying device for a writing instrument, which is capable of moving the sliding body in the longitudinal direction and changing the elastic varying body in the radial direction by the cooperation of the engaging member and the expansion assisting means.