JPS6228480Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ballpoint pen, and in particular, it is equipped with a transparent rotating rectangular tube that accommodates perfume, pills, other liquids, particles, etc., and the objects stored in the rectangular tube can be used at any time. The present invention also relates to a retractable ballpoint pen whose rectangular tube can be used as an operating member for retracting.

A ballpoint pen containing a drawn object (powder, granular, donut, etc.) in a transparent barrel was developed in 1973.
It was proposed in Publication No. 26342, Publication of Utility Model Publication No. 45-26651, etc., and has become well known.

However, in all of these well-known techniques, the shaken material is housed in an inner cylinder (the former) or a capsule (the latter) and then stored in the shaft cylinder, so the shaken material that can be accommodated is powder-like. Inconveniences such as being limited by solids such as granules and donuts and not being able to accommodate liquids at all; requiring a capsule or inner cylinder to maintain the shaken product hygienically; There is an assembly restriction in that it must be assembled into the shaft cylinder.

The present invention has been developed by focusing on such well-known technology, and has a structure in which a transparent rotating rectangular cylinder separate from the shaft cylinder is removably attached to the end of the shaft cylinder rather than inside the shaft cylinder. , pastes, and liquids, can be easily assembled without special consideration for taking out the stored items, can be reliably taken out without any hindrance, and can be fitted with a shaft cylinder. Even if the engagement with the movable tube to be matched is disengaged by turning the rotary rectangular tube counterclockwise, the rotary rectangular tube can be rotated clockwise by pressing the movable tube with a bullet in the direction in which the writing font is drawn out. By rotating it, the bullet can be easily engaged again using the elastic force of the bullet, and furthermore, by engaging the rotary square tube with the shaft tube,
To provide a useful retractable ballpoint pen capable of preventing a rotary rectangular barrel, a movable tube, etc. from falling out of a barrel even if the barrel and the movable tube are disengaged.

To explain the embodiment with reference to the drawings, on the inner circumferential surface of the shaft cylinder 1, on the side where the rotary rectangular cylinder 4 is arranged, there is an annular engaging part 2 consisting of a concave line, a convex line, or a plurality of protrusions arranged in an annular manner. A spiral engaging portion 3 made of a spiral groove or a well-known spiral is formed on the inner circumferential surface of the arrangement portion of the writing body 11 on the opposite side to this engaging portion. The transparent rotation angle tube 4 has an engagement section 5 formed of a protrusion or groove or a plurality of annularly arranged protrusions that can be engaged with the annular engagement section 2 at the fitting section with the shaft tube 1. In addition, a non-perfect circular connecting portion 6 having a rectangular cross section, an elliptical cross section, etc. is formed at a portion that is biased toward the movable tube 7 side with respect to the engaging portion, and a bottom portion is formed in this connecting portion. The fitting portion of the rotary rectangular tube 4 is removably pushed into the shaft tube 1, and the engaging portion 5 is engaged with the annular engaging portion 2, so that the shaft tube 1 is rotatably provided. Appropriate items such as liquid cosmetics, pills, water paste, granular confectionery, powdered cosmetics, etc. are placed in the rotary rectangular cylinder 4, and the entrance and exit for the stored items is sealed with a lid 12 to prevent leakage. , configured to be removable. The movable tube 7 is a rotating square tube 4
A non-perfectly circular connecting pipe part 8 that fits the non-perfectly circular connecting part 6 is formed at the end on the side where the connecting pipe is connected, and a non-perfectly circular connecting pipe part 8 that fits the non-perfectly circular connecting part 6 is configured, and the end opposite to the connecting pipe part is engaged with the spiral engaging part 3. An engaging portion 10 such as a spiral groove or an engaging pawl projecting outward is formed. The movable tube 7 is fitted into the shaft cylinder 1, the engaging part 10 is engaged with the spiral engaging part 3, the elastic member 9 is fitted into the non-perfect round connecting pipe part 8, and the movable tube 7 is rotated through the elastic member. The non-perfect circular connecting portion 6 of the square tube 4 is connected to the non-perfect circular connecting tube portion 8, so that the movable tube 7 can be rotated in conjunction with the rotation of the rotating square tube 4, and at the same time, the spiral engaging portion 3
The engagement between the movable tube 7 and the engaging portion 10 enables the movable tube 7 to move in the axial direction. The bullet machine 9 has a non-perfect circular connection part 6
By interposing the movable tube 7 between the bottom part and the non-circular connecting tube part 8, and by engaging the annular engaging part 2 of the shaft tube 1 with the engaging part 5 of the rotary rectangular tube 4, the movable tube 7 can always be written. The engaging portion 10 is pressed in the direction in which the body 11 is fed out (downward in FIG. 1) and is disengaged from the helical engaging portion 3 of the shaft cylinder 1.
facilitates re-engagement. Then, the base of the writing body 11 is removably inserted into the insertion hole 701 of the movable tube 7 .

Next, to explain the operation, when the rotary rectangular tube 4 is turned clockwise (in the direction of the arrow in the figure) in the unused state shown in FIG. The engaging portion 10 is easily re-engaged by the elastic force of the deflected bullet 9, moves the movable tube 7 forward, and causes the writing body 11 to protrude from the shaft tube 1, resulting in the use state shown in FIG. 4. .

In the usage state shown in FIG. 4, when the rotary rectangular tube 4 is turned counterclockwise, the movable tube 7 rotates in conjunction with it, and at the same time draws the writing body 11 into the shaft tube 1 and retreats, causing the bullet 9
The engaging portion 1 that was engaged with the helical engaging portion 3 was bent.
Remove 0 and put it in the unused state as shown in Figure 1.

Once it is in the unused state shown in the first figure, there is no need to continue turning the rotary rectangular tube 4 counterclockwise. Since the engaging part 5 is engaged with the engaging part 2, the elastic force of the bullet 9 presses the movable tube 7 only in the drawing direction of the writing body 11, so that the rotating rectangular tube 4 is There is no need to worry about it falling out of the shaft cylinder 1, and it will only spin idly.

As described above, in this invention, a transparent rotary rectangular tube having a bottom part separate from the barrel is removably fitted to the barrel, so that it can store pastes and liquids, and special consideration is given to their removal. Easy to assemble without any hassle,
Moreover, the stored contents can be taken out and used without any hindrance, and by rotating the rotary rectangular tube counterclockwise, the helical engagement portion of the shaft tube and the engagement portion of the movable tube can be engaged. Even if the movable tube comes off, the movable tube can be pressed in the cursive payout direction by the bullet, so if the rotary square tube is rotated clockwise, it can be easily re-engaged using the elastic force of the bullet. It has the advantage of being able to reliably re-protrude the writing that has been drawn into the barrel,
Furthermore, since the engaging part of the rotating rectangular tube is engaged with the annular engaging part of the shaft cylinder, even if the engaging part of the movable tube is disengaged from the spiral engaging part of the shaft cylinder, the rotating rectangular tube and the movable tube will remain intact. This has the effect of eliminating the fear of the bullet being ejected from the barrel due to the force of the bullet.

Therefore, the intended purpose can be achieved.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway longitudinal sectional front view of the ballpoint pen of the present invention, Figure 2 is a cross-sectional view taken along line 2-2, Figure 3 is a cross-sectional view taken along line 3-3, and Figure 4 is a partially cutaway front view showing the ballpoint pen in use. A partial longitudinal section is shown in the figure. In the figure, 1... shaft cylinder, 2... annular engagement part, 3...
Spiral engagement portion, 4...Rotating square tube, 5...Engagement portion, 6
... Non-perfect circular connecting portion, 7... Movable tube, 8... Non-perfect circular connecting pipe portion, 9... Bullet machine, 10... Engaging portion, 1
1... Cursive.

Claims (1)

[Scope of utility model registration request] An annular engagement part is formed on the inner circumferential surface of the barrel on the side where the rotating angle barrel is arranged, and a spiral engagement part is formed on the side of the writing body arrangement part on the opposite side of the annular engagement part. An annular engaging portion is engaged with an engaging portion molded into a fitting portion of a transparent rotating rectangular tube that is removably fitted to seal the entrance/exit for stored items with a lid body, and a bottom portion formed in the rotating rectangular tube. A non-perfect circular connecting pipe portion that is compatible with the attached non-perfect circular connecting portion is configured at the rotating rectangular tube connecting side end of the movable tube,
Fitting the movable tube into the shaft cylinder, connecting the non-perfectly circular connecting portion to the non-perfectly circular connecting tube portion, and interposing a bullet between the non-perfectly circular connecting portion and the non-perfectly circular connecting tube portion, A retractable ballpoint pen in which an engaging part formed on a movable tube is engaged with a spiral engaging part, and a base of a writing body is inserted into an insertion hole of the movable tube.