JP3198644B2 - Variable gripper for writing instruments - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gripping portion variable device for a writing instrument which can change the shape of a gripping portion according to a user's preference.

[0002]

2. Description of the Related Art Conventionally, a grip portion of a writing instrument has been devised so that fatigue caused by writing for a long time can be eliminated as much as possible.
Various measures have been taken such as increasing the diameter, ergonomically determining the position of the center of gravity in accordance with the weight of the writing instrument, and disposing a non-slip.

[Problems to be solved by the invention]

[0003] However, the gripping position of the writing implement may be such that the front end is gripped or the middle is gripped according to the user's preference, but the gripping portion cannot be changed, and there is still a problem in terms of fatigue due to long-time writing. Was left. SUMMARY OF THE INVENTION The present invention provides a variable grip portion of a writing instrument that enables the shape of the grip portion to be changed according to the user's preference and minimizes fatigue caused by long-time writing.

[0004]

According to the present invention, a rotatable engaging member is disposed in front of a barrel, and is engaged with the engaging member outside the engaging member to be movable in a longitudinal direction. Arrange the sliding body,
By disposing an elastic variable body outside the sliding body and rotating the engaging member, the sliding body is moved in the longitudinal direction without rotating, and the sliding body is moved at an arbitrary position in the longitudinal direction.
A first object of the present invention is to provide a writing instrument gripping portion variable device capable of changing an elastic variable body in a radial direction, in which an engaging member is arranged in a shaft cylinder, and an elastic variable body is arranged outside the engaging member. A spiral spring having an outer end fixed to the elastic variable body and a center end fixed to the engaging member is disposed between the elastic variable body and the engaging member, and the engaging member is rotated. Thus, the second aspect of the present invention provides a writing instrument gripping portion variable device that changes the spring force of the spiral spring and can change the elastic variable body in the radial direction, and is rotatable and slidable forward of the barrel. And a fixing member that engages with the engaging member outside the engaging member is not rotatable.
Arranged, and an elastic variable body is arranged outside the fixed member,
By rotating the engaging member, in its engaging member
Press the elastic variable body directly in the longitudinal direction, or
Is formed so as to extend to the inside of the elastic variable body,
By pressing the engaging member, the intermediate part is bent,
A third aspect of the present invention relates to a writing instrument gripping portion variable device capable of changing the elastic variable body in a radial direction, and a rotatable engaging member is disposed in front of the shaft cylinder, and is provided outside the engaging member. A sliding body that engages with the engaging member and is movable in the longitudinal direction is disposed, a fluid variable body is disposed in front of the sliding body, and an elastic variable body is provided outside the variable body and the sliding body. By disposing, by rotating the engagement member, the sliding body is moved in the longitudinal direction without rotating, the variable body is pressed, and the elastic variable body can be changed in the radial direction. A fourth aspect of the present invention is directed to a variable grip portion device.

FIGS. 1 and 2 show a first embodiment of the present invention. Reference numeral 1 denotes a shaft cylinder made of synthetic resin, metal, or the like. Engaging part 2
An engaging member 3 made of a synthetic resin, metal, or the like having the following is fixed. The engagement member 3 is rotatable in conjunction with the rotation of the barrel 1. Therefore, the shaft cylinder 1 and the engaging member 3 may be formed integrally. Reference numeral 4 denotes a sliding member made of a synthetic resin, synthetic rubber, metal, or the like disposed outside the engaging member 3. The sliding member 4 engages with the engaging portion 2 of the engaging member 3. It has an engaging portion 5 such as a screw or the like, and is movable in the longitudinal direction. The shape of the sliding member 4 can be variously adopted, but when the elastic variable member 6 described later is gripped, the elastic variable member 6 is slightly depressed inward. Is preferable. Reference numeral 6 denotes an elastic variable body made of silicon rubber, thermoplastic elastomer, or the like disposed outside the sliding body 4. The surface shape of the elastic variable body 6 can be variously adopted, such as forming a rough surface, forming knurls by protrusions or depressions, or forming a large number of small projections.
The surface may be colored.

Reference numeral 7 indicates smoother 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. Is a leaf spring made of metal, synthetic resin, or the like so as not to hinder the sliding, and the sliding body and / or the elasticity
It can also be removed by surface treatment or by devising its shape. Reference numeral 8 denotes a tip member made of metal, synthetic resin, or the like. Reference numeral 9 denotes a ballpoint pen having a ballpoint pen tip 10 at the tip and an ink storage tube 11 at the rear. In the present invention, for example, a mechanical pencil other than a ballpoint pen may be used. 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 gently gripped and the barrel 1 is rotated (when the tip member 8 and the engaging member 3 are fixedly integrated, the tip member is 8 may be rotated), the engagement member 3 also rotates,
With the rotation of the engagement 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 state shown in FIG.

FIGS. 3 and 4 show a second embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals (the same applies hereinafter). The main points different from the first embodiment are that the sliding body 4 is formed to be elongated and that the rotation of the sliding body 4 is prevented by the slit 8A formed behind the tip member 8 and formed on the front inner surface of the sliding body 4. This is achieved by engaging the projected protrusion 4A (see FIG. 4).
And an outer surface of the rear part of the engaging member 3 is exposed. Therefore, in the present embodiment, the sliding member 4 is moved in the longitudinal direction by rotating the outer surface of the rear part of the engaging member 3, and as a result, the elastic variable member 6 can be changed in the longitudinal direction. Things.

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 to be elongated, the rear end of the engaging member 3 is protruded from the rear end of the barrel 1, and the rotation of the sliding body 4 is prevented. As in the second embodiment, the engagement between the engaging member 3 and the sliding member 4 by the point formed by the slit 8A of the tip member 8 and the projection 4A of the sliding member 4 And a point at which the front end of the engaging member 3 is fixed to the tip member 8 by engaging the engaging portion 5 with the protrusion of the sliding body 4. Therefore, in this example, the sliding member 4 is moved in the longitudinal direction by rotating the rear end portion or the leading member 8 of the engaging member 3, and as a result, the elastic variable body 6 is changed in the longitudinal direction. It is 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 formed 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 that in the third embodiment.

FIGS. 7 and 8 show a fifth embodiment and a sixth embodiment of the present invention, which are basically similar in construction to the second embodiment, except for the following differences. It is. That is,
The rotation of the sliding body 4 is prevented by engaging and locking the comb-shaped groove 4B formed at the tip of the sliding body 4 with the comb-shaped groove 8B formed on the rear outer surface of the tip member 8. (FIG. 7), and in the sixth embodiment of FIG. 8, the comb-shaped groove 8B of the tip member 8 and the comb-shaped groove 4B of the sliding member 4 in the fifth embodiment of FIG. The locking is performed at a position closer to the axis.

FIG . 9 shows a seventh embodiment of the present invention.
An engaging member 3 is rotatably arranged in the barrel 1, and an elastic variable member 6 is arranged outside the engaging member 3. A spiral spring is provided between the elastic variable member 6 and the engaging member 3. 13 are arranged. The outer end of the spiral spring 13 is fixed to the elastic variable body 6,
The center end is fixed to the engagement 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. Things. Although various technical means for locking the spring force of the spiral spring 13 in an arbitrary state are conceivable, in the drawing, the engaging member 3 is pulled rearward in the drawing and the rear engaging member is pulled. 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 engaged with the groove 1B provided on the inner surface of the rear end of the barrel 1. Made by combining. In this example, in order to rotate the engaging member 3, the engaging member 3 may be directly rotated as described above, or the tip member 8 fixed to the engaging member 3 may be rotated.

FIG . 10 shows an eighth 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 member 3 partially connected or operatively connected to a rear end of the elastic variable body 6 described later, and an engaging portion 2 of the engaging member 3 is provided outside the engaging member 3. A fixing member 15 having an engaging portion 5 such as a screw to be engaged is non-rotatably disposed by fixing a front end thereof to the tip member 8, and an elastic variable body 6 is disposed outside the fixing member 15. I have. Therefore, in order to change the elastic variable body 6 in the radial direction, when the engaging member 3 is rotated, the engaging member 3 moves forward.
When the engaging member 3 moves forward, the engaging member 3
Is pressed forward, the diameter of the elastic variable body 6 expands and changes in the radial direction, and the state shown in FIG. 11 is obtained.

[0014] Figure 12 shows a ninth embodiment of the present invention, the main differences eighth embodiment, the front portion of the engaging member 3
And an extended portion is formed in the elastic variable body 6.
It is a point located in the section . In this example, the elastic variable body 6
In order to change the diameter in the radial direction, the engagement member 3 is rotated.
And the engaging member 3 moves forward, but the engaging portion 3
Is fixed to the tip member 8 so that the engagement portion 3
The intermediate portion is bent outward, and the engagement portion 3 is bent.
Due to the bending, the diameter of the elastic variable body 6 expands and changes in the radial direction.

FIG . 13 shows a tenth embodiment of the present invention. An engaging member 3 having an engaging portion 2 such as a screw is disposed in front of a barrel 1 so as to be rotatable. Outside the member 3, there is provided an engaging portion 5 such as a screw for engaging with the engaging portion 2 of the engaging member 3, and a sliding body 4 movable in the longitudinal direction is arranged. the consists fluid, the arranged variable member 14 for connecting or operative connection with the front end of the sliding body 4, the outside of the movable variant 14 and the sliding body 4 is arranged a resilient variable body 6. Therefore, in order to change the elastic variable member 6 in the radial direction, when the engaging member 3 is rotated, the sliding member 4 moves forward. This compressive force is converted to an outward expanding force. As a result, the diameter of the elastic variable body 6 expands and changes in the radial direction, and the state shown in FIG. 14 is obtained.

[0016]

According to the present invention, a rotatable engaging member is disposed in front of a barrel, and the engaging member is engaged with the engaging member outside the engaging member.
A sliding body movable in the longitudinal direction is arranged, an elastic variable body is arranged outside the sliding body, and by rotating the engaging member, the sliding body is moved in the longitudinal direction without rotating , Diameter the elastic variable body at any position in its longitudinal direction.
A first object of the present invention is to provide a writing instrument gripping portion variable device that can change in the direction. An engaging member is arranged in a shaft cylinder, and an elastic elastic body is arranged outside the engaging member. A spiral spring having an outer end fixed to an elastic variable body and a center end fixed to the engaging member is disposed between the body and the engaging member, and the spiral spring is rotated by rotating the engaging member. Change the spring force of
A second aspect of the present invention provides a writing instrument gripping portion variable device that is capable of changing the elastic variable member in a radial direction, wherein a rotatable and slidable engaging member is disposed in front of the barrel. A non- rotatable fixing member for engaging with the engaging member is disposed outside the
A variable elastic body is arranged outside the fixing member, and the engaging member is
By rotating, the elasticity can be changed by the engaging member.
Press the body directly in the longitudinal direction, or
Extend to the inside of the variable body and press the engaging member.
A third aspect of the present invention provides a writing implement gripping portion variable device that bends the intermediate portion by bending the elastic portion so that the elasticity variable body can be changed in the radial direction, and a rotatable engaging member is disposed in front of the barrel. A sliding body that engages with the engaging member and is movable in the longitudinal direction is disposed outside the engaging member, and a fluid is provided in front of the sliding body.
A variable body is arranged, an elastic variable body is arranged outside the variable body and the sliding body, and by rotating the engaging member, the sliding body is moved in the longitudinal direction without rotating, The fourth object of the present invention is to provide a gripper variable device for a writing instrument in which the variable member is pressed into contact with the elastic variable member so that the elastic variable member can be changed in the radial direction. It has the effect that it can be changed by preference.

[Brief description of the drawings]

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

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

FIG. 3 is a partially omitted longitudinal sectional view showing a main part of a second embodiment.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a partially omitted longitudinal sectional view showing a main part of a third embodiment.

FIG. 6 is a partially omitted longitudinal sectional view showing a main part of a fourth embodiment.

FIG. 7 is a partially omitted longitudinal sectional view showing a main part of a fifth embodiment.

FIG. 8 is a partially omitted longitudinal sectional view showing a main part of a sixth embodiment.

FIG. 9 is a partially omitted longitudinal sectional view showing a main part of a seventh embodiment .

FIG. 10 is a partially omitted longitudinal sectional view showing an eighth embodiment .

FIG. 11 is an operation explanatory view of the eighth embodiment .

FIG. 12 is a partially omitted longitudinal sectional view showing a main part of a ninth embodiment .

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

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

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Shaft cylinder 1A Engagement part 1B Groove 2 Engagement part 3 Engagement member 3C Projection 4 Sliding body 4A Projection 4B Comb-like groove 5 Engagement part 6 Elastic variable body 7 Leaf spring 8 Tip member 8A Slit 8B Comb-like Groove 9 ballpoint pen 10 ballpoint pen tip 11 ink storage tube 13 spiral spring 14 variable body 15 fixing member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B43K 23/008 B43K 3/00

Claims (4)

(57) [Claims] A sliding member is disposed in front of a shaft cylinder, and a sliding body that engages with the engaging member and is movable in the longitudinal direction is disposed outside the engaging member. By disposing an elastic variable body outside the moving body and rotating the engaging member, the sliding body is moved in the longitudinal direction without rotating ,
A variable grip portion of a writing instrument, which is capable of changing the elastic variable body in a radial direction at an arbitrary position in a longitudinal direction . 2. An elastic member is disposed in a shaft cylinder, an elastic variable member is disposed outside the engaging member, and an outer end is provided between the elastic variable member and the engaging member. And a spiral spring having a central end fixed to an engaging member is arranged, and by rotating the engaging member, the spring force of the spiral spring is changed, and the elastic variable body is changed in the radial direction. A variable gripping device for a writing instrument. 3. A rotatable and slidable engaging member is disposed in front of the shaft cylinder, and is engaged with the engaging member outside the engaging member.
The fixed member is placed so that it cannot rotate, and elastically
By disposing the variable body and rotating the engagement member,
The elastic member is directly pushed in the longitudinal direction by the engagement member.
Or extend the engagement member to the inside of the elastic
The intermediate part is formed by pressing the engaging member.
And a bending portion of a writing instrument, which is capable of bending the elastic variable body in a radial direction. 4. A sliding member that is rotatable in front of the barrel, and a sliding body that engages with the engaging member and is movable in the longitudinal direction is disposed outside the engaging member. A fluid 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 sliding body is rotated by rotating the engagement member. A variable gripping device for a writing instrument that is capable of moving in a longitudinal direction without contacting the variable body and pressing the variable body in a radial direction.