JP5379050B2 - Writing instrument with nib angle adjustment mechanism - Google Patents

Description

  The present invention relates to a mechanism for adjusting the angle of the tip of a pen tip of a writing instrument.

  Shokai 60-80809   Shoko 45-21609

  For example, with a writing instrument having a special shape at the tip of the pen tip, such as a highlighter pen, the same thickness is used if the tip is not reoriented between writing in the vertical direction and writing in the horizontal direction. You cannot draw a line. Therefore, it is usually handled by adjusting the position in the circumferential direction of the shaft cylinder. However, like the writing tool shown in the above-mentioned patent document, a writing instrument in which the operation part and the clip part are provided on the front side of the shaft cylinder. In such a case, it was difficult to make such adjustment because they were in the way.

  The present invention has been made in order to solve the above problems, and a pen nib provided at the tip of a core member provided in the shaft tube is operated by operating an operation member provided on the front side of the shaft tube. In the writing instrument that protrudes from the opening at the tip of the shaft cylinder, the pen tip is provided with a rotation mechanism that rotates the pen tip alone or integrally with the core member around a straight line passing through the pen tip along the longitudinal direction of the shaft cylinder, The writing tool is characterized in that the rotation is stopped at each of a plurality of appropriate angles, and the pen tip protrudes from the opening and can be written while maintaining the angle. To do.

  The invention of claim 1 will be described in detail as follows. “Rotation about a straight line passing through the nib along the longitudinal direction of the cylinder” is, for example, rotation about the straight line shown by the one-dot chain line in FIG. 4 in the case of the first embodiment. .

  With the present invention, when adjusting the tip of the pen tip to an angle suitable for vertical writing and horizontal writing, the shaft cylinder itself does not need to be rotated, so there is no need to change the position where the writing tool is held, and the operation unit is obstructive. This makes it possible to write comfortably both vertically and horizontally.

  The writing instrument according to the present embodiment is characterized in that the core member in the shaft tube is rotated by a member provided on the shaft tube, and one example thereof is the following structure.

  First, the nib 1 has an integral structure with the core material, and the core material rear portion 2 has a cylindrical shape having a diameter slightly smaller than the inner diameter of the shaft tube 8, and a right-handed angle fixing groove 3 is formed on the surface thereof. And a left-handed angle fixing groove 4 is provided in the longitudinal direction. Note that these two grooves are arranged in parallel at positions shifted by 90 degrees in the circumferential direction of the core rear portion 2. (See Figure 1)

  Next, the angle fixture 5 has a ring-shaped form with a part of the main body portion thereof, and includes a large protrusion 6 at the inner center and a small protrusion 7 at one inner end. (See Figure 2)

  Next, the shaft cylinder 8 is provided with an angle adjusting slit 9 extending in the circumferential direction, and two recesses 10 are provided on the extension of the angle adjusting slit 9. (See Figure 3)

  The angle adjustment slit 9 is first provided with such a length that the large projection 6 can slide within a range of about 90 degrees in the circumferential direction of the shaft cylinder when it is installed. The two concave portions 10 are provided at respective positions where the small protrusions 7 are accommodated when the large protrusions 6 are positioned at both ends of the angle adjusting slit 9. (See Figure 6)

  The lengths of the two angle fixing grooves are the positions where the nib 1 is completely accommodated in the shaft cylinder 8 when the core material is slid in the longitudinal direction of the shaft cylinder with the large protrusions 6 being accommodated in the grooves. From the opening of the shaft tube 8 to the position where writing can be performed. (See Figures 4 and 5)

  When installing each member, the angle fixing tool 5 is mounted on the shaft tube 8 so that the large protrusion 6 passes through the angle adjusting slit 9 and is accommodated in the right-handed angle fixing groove 3 of the core rear portion 2 in the shaft tube 8. Fit into. (See Figure 6)

  The usage method is that when the shaft cylinder 8 is fixed and a force is applied to the angle fixing tool 5 in the circumferential direction of the shaft cylinder, the small protrusion 7 comes off from one of the convex portions 10, and the angle fixing tool 5 becomes the core material and the nib. The small protrusions 7 are accommodated in the other of the recesses 10 at the position where they are rotated together and rotated approximately 90 degrees, and the rotation is stopped. As a result, the direction of the tip of the nib 1 is also changed by approximately 90 degrees, and the pen nib 1 is projected from the opening of the tip of the shaft tube 8 while maintaining the angle, and can be stored in the shaft tube 8. Become.

  In the case of a highlighter pen, if the user is left-handed, the tip of the pen tip suitable for drawing a line vertically is opposite to the right-handed case. In the writing instrument according to the present embodiment, the angle fixing tool 5 is once removed from the shaft cylinder 8, and the angle fixing tool 5 is re-fitted into the shaft cylinder 8 so that the large protrusion 6 is accommodated in the left-handed angle fixing groove 4. . Further, instead of providing an extra groove for left-handed use, the pen tip 1 may be pulled out of the core material and re-oriented so that the tip of the pen tip is suitable for left-handed use.

  The writing instrument according to the present embodiment is characterized in that the core in the shaft cylinder is rotated together with the rear portion of the shaft cylinder, and an example thereof is the following structure.

  First, the nib 12 has an integral structure with the core material, the core material rear portion 13 has a cylindrical shape having a diameter slightly smaller than the inner diameter of the shaft tube rear portion 16, and an angle fixing groove 14 is formed on the surface thereof. Provided in the direction. (See Figure 7)

  Next, although it is a shaft cylinder, the shaft cylinder rear part 16 and the shaft cylinder front part 15 become the independent structure, and the nail | claw 21 of the shaft cylinder rear part 16 and the groove | channel 22 of the shaft cylinder front part 15 are used in the circumferential direction. It is pivotally connected. Each of the connecting portions is provided with four convex portions 18 and four concave portions 19 every 90 degrees in the circumferential direction, and the rotation can be stopped at a total of four positions every 90 degrees. Yes. In addition, it is necessary to use the raw material which has elasticity for this convex part 18 to some extent. In addition, a protrusion 20 is provided at an appropriate position on the inner surface of the shaft tube rear portion 16. (See Figs. 8 and 9)

  Note that the relationship between the length of the angle fixing groove 14 and the installation position of the protrusion 20 is shown. When the core member is slid in the longitudinal direction of the shaft cylinder while the protrusion 20 is accommodated in the angle fixing groove 14, the pen tip 12. Is provided so as to be able to reciprocate from a position completely accommodated in the shaft cylinder 17 to a position where it protrudes from the opening at the tip of the shaft cylinder 17 and can be written. (See Figs. 10 and 11)

  The core material is installed so that the protrusion 20 is accommodated in the angle fixing groove 14 in the shaft tube rear portion 16. (See Figure 12)

  When the shaft cylinder front portion 15 is fixed and a force is applied to the shaft tube rear portion 16 in the shaft tube circumferential direction, the convex portion 18 at the joint portion between the shaft tube rear portion 16 and the shaft tube front portion 15 becomes the concave portion 19. And the shaft cylinder rear part 16 rotates together with the core member and the nib 1, and the rotation is stopped when the convex part 18 fits into the adjacent concave part 19 at a position rotated 90 degrees. . As a result, the direction of the tip of the pen tip is also changed by 90 degrees, and the pen tip 12 can be projected from the opening of the tip end of the shaft tube 17 while the angle is maintained, and can be stored in the shaft tube 17.

  The writing instrument according to the present embodiment is characterized in that the core material is directly rotated, and an example thereof includes the following structure.

  First, the nib 23 has an integral structure with the core material, and the core material rear portion 26 includes an angle maintaining portion 24 that protrudes at four angles at intervals of 90 degrees and a cylindrical knob portion 25. (See Figure 13)

  Next, the shaft cylinder 27 is open at its rear end, and four angle fixing grooves 28 are formed by eight convex portions on the inner surface of the rear portion of the shaft cylinder 27. (See Figs. 14 and 15)

  Note that the length of the angle fixing groove 28 is determined by the position where the pen tip 23 is completely accommodated in the shaft cylinder 27 when the angle maintaining portion 24 accommodated in the groove slides the core material in the longitudinal direction of the shaft cylinder. From the opening of the tip of the shaft cylinder 27 to a position where writing can be performed. (See FIGS. 16 and 17)

  In addition, it is necessary to use a material having a certain degree of elasticity for the convex portion forming the angle fixing groove 28 and the angle maintaining portion 24 at the rear portion of the core material.

  When each member is installed, each of the four protruding portions of the angle maintaining portion 24 is installed in each of the four angle fixing grooves 28 in the shaft tube 27. (See Figure 18)

  The usage method is that when the shaft tube 27 is fixed and a force is applied to the knob portion 25 protruding from the rear end opening of the shaft tube 27 in the circumferential direction, each of the four protruding portions of the angle maintaining portion 24 has four protrusions. Each of the four corners of the angle maintaining portion 24 is moved to the next adjacent angle fixing groove 28 at a position where the core member and the nib 1 are rotated by 90 degrees and are detached from the angle fixing grooves 28. The rotation is stopped. As a result, the direction of the tip of the pen tip 23 also changes by 90 degrees, and the pen tip 23 can be projected from the opening of the tip of the shaft tube 27 while the angle is maintained, and can be stored in the shaft tube 27. . (See Figure 18)

  In the second and third embodiments, since the tip angle of the pen tip can be adjusted at three or more positions every 90 degrees, it is not necessary to provide a special mechanism for a left-handed user. If each rotation can be stopped at an angle smaller than 90 degrees, the angle of the tip of the pen tip can be finely adjusted. In addition, in any of the embodiments, the angle of the tip of the pen tip can be adjusted even when the pen tip protrudes.

  It is a side view of the nib and core material of Example 1.   It is a front view of the angle fixing tool of Example 1.   It is a side view of a shaft cylinder of Example 1.   It is a side view of the state of Example 1 where the pen tip is stopped at an angle suitable for horizontal writing and exposed.   It is a side view of the state of Example 1 where the pen tip is fixed and exposed at an angle suitable for vertical writing.   It is the operation | movement figure which showed the change from FIG. 4 to FIG. 5 by the XX cross section.   6 is a side view of a nib and a core material of Example 2. FIG.   It is sectional drawing of the side part and rear part of the front part (part) of a shaft cylinder of Example 2. FIG.   It is sectional drawing of the connection part in the state which connected the front part and rear part of the axial cylinder of Example 2. FIG.   It is a side view of the state where the pen tip of Example 2 was fixed and exposed at an angle suitable for horizontal writing.   It is a side view of the state of Example 2 where the pen tip was stopped at an angle suitable for vertical writing and exposed.   FIG. 12 is an operation diagram illustrating a change from FIG. 10 to FIG.   FIG. 6 is a perspective view of a nib and a core material of Example 3.   It is sectional drawing of the axial cylinder rear part (part) of Example 3. FIG.   FIG. 10 is a front view of the rear end of the shaft cylinder according to the third embodiment.   It is a side view of the state where the pen tip of Example 3 was fixed and exposed at an angle suitable for horizontal writing.   It is a side view of the state where the pen tip of Example 3 was fixed and exposed at an angle suitable for vertical writing.   FIG. 18 is an operation diagram showing a change from FIG. 16 to FIG. 17.

DESCRIPTION OF SYMBOLS 1 Pen point 2 Core material rear part 3 Right-handed angle fixing groove 4 Left-handed angle fixing groove 5 Angle fixing tool 6 Large protrusion 7 Small protrusion 8 Shaft 9 Angle adjustment slit 10 Recess 11 Operation part 12 Pen point 13 Core Material rear part 14 Angle fixing groove 15 Shaft cylinder front part 16 Shaft cylinder rear part 17 Shaft cylinder 18 Convex part 19 Concave part 20 Protrusion 21 Claw 22 Groove 23 Pen tip 24 Angle maintenance part 25 Knob part 26 Core material rear part 27 Shaft cylinder 28 Angle fixing Groove 29 Operation unit 30 Operation unit

Claims (4)

  In a writing instrument in which the pen tip provided at the tip of the core provided inside the shaft tube protrudes from the opening at the tip of the shaft tube by operating the operation portion provided on the front side of the shaft tube. It is provided with a rotation mechanism that rotates with a straight line passing through the pen tip along the longitudinal direction of the cylinder as a single body or integral with the core material, and stops the rotation at each of a plurality of appropriate angles. A writing instrument characterized by having a structure that allows the pen tip to protrude from the opening and write while maintaining the above.   The writing instrument according to claim 1, wherein the rotation mechanism rotates the pen tip by operating a member provided on the shaft cylinder.   2. The writing instrument according to claim 1, wherein the rotation mechanism is configured such that a part other than a rear portion or a rear portion of the shaft tube is rotatably installed with respect to a front portion or a main body portion of the shaft tube, and the portion thereof. A writing instrument, wherein the pen tip is rotated by rotating the pen tip.   2. The writing instrument according to claim 1, wherein the rotation mechanism rotates the pen tip by rotating the core member exposed from the rear end of the opened shaft cylinder or a member integral with the core member. Writing instrument characterized by letting it.

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